E85 vs Gas Performance Testing | Stage 2 Predator 212 Comparison

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  • Опубликовано: 25 янв 2025

Комментарии • 698

  • @baxor
    @baxor 5 лет назад +173

    Topspeed is probably because 4mm bigger carb on e85. and look at the ignition plug at gasoline.. it is running to rich on gasoline meaning less power.

    • @StonerTimes
      @StonerTimes 5 лет назад +7

      what this guy said

    • @alextreme093
      @alextreme093 5 лет назад +25

      Plus they can run way more timing advance with the e85. Still dont understand why they didnt do the test with the same carb ... and why they didnt tune both carbs and ignition to get a real apple to apple comparison

    • @btpearce
      @btpearce 5 лет назад +5

      Run gas in it with the bigger carb to see how the numbers compare.

    • @nathanmiller5753
      @nathanmiller5753 5 лет назад +4

      Also which this doesn't probably make a huge difference but it could have contributed to the 1 mile an hour but the fact that e85 does help cool off intake air temps and if it's cooling that air then they could be getting a higher density of air which can get you a little more power

    • @hotshtsr20
      @hotshtsr20 5 лет назад +1

      Too rich is usually needed on gasoline and lots of compression.

  • @Marks_journey
    @Marks_journey 5 лет назад +218

    I feel like you guys need a little dyno to test the actually WHP of your builds.

    • @Marks_journey
      @Marks_journey 5 лет назад +7

      @elsie bond I agree, its probably a lot. I really enjoy watching numbers as more things get added or upgraded. The butt dyno is the real teast, but i do love number.

    • @Rebar77_real
      @Rebar77_real 5 лет назад +11

      Warped Perceptions(the acrylic head guys) built a home-made dyno with a brake attached to a scale(simplified description). They'd bog the motor with the brake and measure how many pounds the scale pulled. Then used math to get HP. C&C could build one no problem.

    • @ClumsyCars
      @ClumsyCars 5 лет назад +13

      @elsie bond look up 2strokestuffing, dude sells a $10 arduino shield to build a motorcycle dyno, could easily work on a go cart.

    • @randomrcprojects3754
      @randomrcprojects3754 5 лет назад +2

      They Dyno’d the rail so they can definately do it

    • @elliottloomis4383
      @elliottloomis4383 5 лет назад +1

      Definitely should build a small engine dyno! Would be great content!

  • @rallywagon261
    @rallywagon261 5 лет назад +91

    E85 has less energy than gasoline. This in practice means its essentially higher octane. When run through a flex fuel vehicle, this shows itself as less power and lower mpg.
    When used in an engine that has a proper tune however, it allows for high compression, higher boost and more power. That said, a car tuned for e85 shouldn't be using that same tune to run traditional pump gas.

    • @philtripe
      @philtripe 5 лет назад +2

      octane has to do with how fast a fuel burns and nothing to do with energy density

    • @rallywagon261
      @rallywagon261 5 лет назад +4

      @@philtripe if you did, let me break it down Barnie style. Less energy means the flame front is less energetic. This, in practice, presents itself the same as high octane fuel. The flame front from the point of ignition moves slower, helping to prevent detonation. So, essentially, it's like running higher octane fuel.

    • @fatkid8523
      @fatkid8523 5 лет назад

      @@philtripe fuel does to a degree have energy, but it all depends on how the engine utilizes the fuel.

    • @doug960
      @doug960 5 лет назад +10

      @@philtripe That's false. Octane ratings designate a fuel's resistance to flash ignition by heat - resistance to pre ignition. It has nothing to do with how much energy a fuel contains. You can compress higher octane fuels more and thus make more power. E85 has a MUCH higher octane rating than premium pump gas despite being less energy dense. You can make more power with it because you can advance ignition timing more without causing knock.
      You want the spark to ignite the air fuel mixture, not the heat from compression. The more air and fuel you can compress without detonating, the more power you can make, which is why you can make more power on E85. You can squeeze more of it into a smaller space and still ignite it when you want to.

    • @doug960
      @doug960 5 лет назад +2

      Only partially true. The stoichiometric ratio of ethanol is such that you need more fuel and less air to have a complete combustion, hence the drop in fuel economy, but because you have a richer mixture of fuel, you gain power over gasoline when E85 is compressed to the same ratio as gasoline. Not to mention that you can advance timing to make more power because of E85 superior knock resistance (octane rating). Worse fuel economy? Yes. Definitely, but flex fuel vehicles have dozens of different fuel and ignition maps in the ECU to make the most of whatever the alcohol content of the fuel happens to be. You see a slight gain in power over gasoline in most vehicles because ignition timing is advanced and you are compressing more fuel than air as compared to gasoline.

  • @jakeparks1
    @jakeparks1 5 лет назад +80

    The 2% increase is due to the 26mm vs the 22mm carb more air and fuel equals more power. the e85 advantage is more timing and less chance of detonation. Also when the fuel atomizes it gets colder which helps drop intake air temps for a slight gain that way.

    • @nicolasp7395
      @nicolasp7395 5 лет назад +7

      They need more compression to that fuel

    • @comethiburs2326
      @comethiburs2326 5 лет назад +5

      @@nicolasp7395 true. if it's really 105+ octane, you need 13.5 to 1 to make use of it.

    • @CarsandCameras
      @CarsandCameras  5 лет назад +7

      But if the engine's head is the airflow restriction, then the larger 26mm carburetor won't make a difference from an airflow perspective- but I guess it can sneak a little more air in, hence the top speed increase. Thanks!

    • @MillennialRebelion
      @MillennialRebelion 5 лет назад

      Then it should have more than 2 percent it's around 25 percent more fuel, and air. So there for it should be running where e85 needs to

    • @shaadydog1
      @shaadydog1 5 лет назад +3

      @@CarsandCameras I know this is a few months old, was searching for a true e85 build. Obviously that wasn't what was exercised here. Just in general you would want an Alky port to be 8-12 percent bigger, more duration on your exhaust lobe and a good bump in compression to take advantage of how cool the fuel runs. Would be cool to see a legit dedicated build with those basic things in mind.

  • @rogermarshall8991
    @rogermarshall8991 5 лет назад +23

    It's been found out, crank case presure due to increased blow by
    (High RPM'S) & INCREASES in compression cause extra stress on side cover & bolts tend to loosen up ??? The stud kit & Billet side cover. Tends to cure the problem. Venting the case is extremely important. Large vent hose & catch can. Good show guys.

  • @almighty151986
    @almighty151986 5 лет назад +47

    That 1mph extra is within margin of error for the GPS chip in side the phone. You would need to do multiple runs to truly see if there is a difference. You could also look at measuring the engine RPM to see if E85 has a slightly higher RPM as that would also give the extra 1mph.

    • @rileyfenley522
      @rileyfenley522 5 лет назад +6

      100% agree on the GPS.

    • @t-townmini4939
      @t-townmini4939 5 лет назад +4

      Higher RPM would add top speed with any gear ratio. They need a Tach so they can read it real time.

    • @comethiburs2326
      @comethiburs2326 5 лет назад +2

      @@t-townmini4939 tach, and a lambda sensor...
      seriously they should run two carbs of the SAME size.

    • @jcwoods2311
      @jcwoods2311 5 лет назад +1

      @Joe Shmo A lil' harsh Shmo, but correct.

    • @cxbra
      @cxbra 5 лет назад +1

      Annnnd, speed on these bikes wont increase unless theres an RPM increase... e85 wont increase available RPM, but torque/power is increased. Agreed

  • @GyngerBreadMan
    @GyngerBreadMan 5 лет назад +42

    Holy cow! That first pass John did on the pump gas was amazing! Drifted every corner perfectly without losing power, over steering, or under steering. Oh yeah, it'll be fine!
    Edit: the first comment I posted was before I saw the second run with the E85. That was an absolutely Stellar run as well! Great driving!

    • @MrBen527
      @MrBen527 5 лет назад

      That would be fun!!

    • @donaldpowers3314
      @donaldpowers3314 5 лет назад +1

      I'm surprised that the smooth tires held on the grass ..but on cornering along curve at speed works. But damm those trees don't give much... I would prefer open area...

    • @egjr2722
      @egjr2722 5 лет назад

      Donald Powers agreed but safety isn’t fun... 😎 lol

    • @t-townmini4939
      @t-townmini4939 5 лет назад

      Yes. Smooth equals speed.

    • @MrBen527
      @MrBen527 5 лет назад +2

      @@donaldpowers3314 It would suck a lot to catch one of those trees.

  • @vaoutdoorssportsman3555
    @vaoutdoorssportsman3555 5 лет назад +41

    Just a random thought... y’all need to buy your folks a few fainting goats to go with the chickens; it would be totally awesome to see them faint every time y’all run through the yard! 🤣
    Congrats on the new C&CGP lap record!

    • @2v_media
      @2v_media 5 лет назад +2

      VA Outdoors Sportsman I’m not usually one for terrorizing animals. But this would be gold for at least a video 😂

    • @shepdgc.og.soldier7732
      @shepdgc.og.soldier7732 5 лет назад +3

      That’s a horrible idea..
      I hope they get at least 4 of them. Who doesn’t Love fainting goats. Haha.✌️

  • @johncochran9392
    @johncochran9392 5 лет назад +5

    You guys should consider a transponder set up to get proper timing. Inconsistency in start/stop presses will give you 1/2 second variations easily. And then time flying lap times to eliminate time variations due to clutch bite, engine burble/bog.

  • @t-townmini4939
    @t-townmini4939 5 лет назад +5

    On the record CCGP run, it was faster because your driving was that much smoother. Smooth equals speed.
    Watch your steering input when you play it back....it's darned near perfect. You basically willed it around the track.
    Ike was a bit slower because he slid around a little more. Still good driving on the part of the both of you. Well done.

  • @MisterEmoto
    @MisterEmoto 5 лет назад +7

    Some feedback for you guys the reason E85 makes more power is not because of the fuel it's because it lets you run more timing it doesn't detonate as early as gasoline

    • @taylorgtrotter
      @taylorgtrotter 5 лет назад +1

      The fuel itself absolutely makes the difference. The octane rating of 105, latent heat vaporization properties, it’s forgiving, and the lower AFR all contribute to better power production

  • @rider68-12
    @rider68-12 5 лет назад +1

    One thing to note is that you launched the cart over the drive way. That to me at least is where chain stretched the bolt backed out a little. That little cart is a real performer.

  • @joshuapearson2857
    @joshuapearson2857 5 лет назад

    In that first lap when John picked up the left front hitting the bush after crossing the driveway, my heart raced lol. you guys are cookin! Something that might help eke a little more out of that engine would be to vent the case with a catch can and if the timing hasn't been advanced already, bring a few more degrees of timing in. Also sounded like it was still breaking up during the top speed run. maybe add just a little bit more jet? Thanks for posting guys. Have fun, keep the rubber side down! Cheers!

  • @brennenrulez
    @brennenrulez 5 лет назад

    just wanted to reflect a bit at how far you guys have come in only a couple of years. hell yeah guys keep at it!

  • @justinlabarge8178
    @justinlabarge8178 5 лет назад +1

    Where E85 really shines is with specific mods. If you increased the compression to the point where gasoline would pre detonate, and then ran E85, you would have better performance gains over 93 or 95 on whatever compression it can tolerate.
    It also reacts to boost very well.

  • @newcoincatfish6111
    @newcoincatfish6111 5 лет назад +1

    WOW...You guys are RADICAL...!!!!...Love the Builds!!!

  • @dakotadillon6527
    @dakotadillon6527 5 лет назад

    I LOVE the mix in of the data you've collected. It's just enough to not bore me but gives me another way to compare and decipher the information.

  • @daviddewilde8041
    @daviddewilde8041 5 лет назад

    Hello,
    Fun video. Fine presentation as always.
    Test results arguable. That's not a real test, only good entertainment.
    I admire the fact this team stays together for this long.
    Cheers from Belgium.

  • @Bryaniskey
    @Bryaniskey 5 лет назад +4

    The first ride John did in the grand prix looked so fast i thought it was at least 25 seconds

  • @mr-salty6145
    @mr-salty6145 5 лет назад +3

    The thing I don't like about most go-kart is that they don't have a multiple gear transmission and without one the engines potential power is very limited now I do know that shifter karts do exist but if you're going to put in the time and energy for a single geared engine whenever you can have an engine that could be half the size with multiple gears give off more power and speed it's just not worth it if you ask me I mean don't get me wrong it's still fun but multi gear transmissions were built for gasoline engines to optimize their very limited span of power within the RPMs

    • @mihkus
      @mihkus 5 лет назад +1

      If I would build a gokart... 2 stroke, chain drive and locked rear axle.
      If buggy, FWD honda engine/gearbox/differential and fully independent suspension.
      Its not even fancy!
      Its just a bit expensive and time consuming.

  • @ronwolff5973
    @ronwolff5973 5 лет назад +2

    After you do the 212 on e-85 you need to get a Stock 212 NO stage 2 mods
    Thank you for the Great channel.
    I’m 58 now, when I was 14 I had a 2.5 hp Briggs Supercharged using a MG midget air pump , Buick 231 V-6 pulleys on my mini bike... it was a Lot faster then a Honda cb 125 ..
    When it died it blowing oil out of spark plug hole .. oh the plug was Tight

  • @aidanworthington
    @aidanworthington 5 лет назад +2

    You didn't alter the timeing. And also a good excuse to skim that head . Should still be a fair test because your just setting it up properly for the new fuel.

  • @bosmith5152
    @bosmith5152 5 лет назад +1

    It sounds like you ran out of gear at 7:05. It's nice to know that you gained a 10th off of a carb and fuel change nothing else. Love the videos keep them up.

  • @the_stixXx
    @the_stixXx 3 года назад

    You guys are friggin great...just started watching a couple weeks ago. Picked up some used go-karts for my boys and I'm looking forward to working on them with my boys. 10 & 8. Keep it going 🤙

  • @juantabby4787
    @juantabby4787 5 лет назад +1

    Gas carb not tuned correctly is the reason for the speed difference. With more intake vacuum you need to lean the carb out some. I’m really liking this series of videos great job guys. Would you be willing to do your pitbike motor to e85?

  • @georgewallacejr5644
    @georgewallacejr5644 5 лет назад +2

    Good video y’all 👍🏻👍🏻👍🏻👊🏼🙏🏼

  • @aerofobisti
    @aerofobisti 5 лет назад +1

    When you compare different fuels, you should use the exactly same setup for both. And yes, with E85 you need more fuel, but with bigger carb you´re also giving it more air, thus giving it more potential for power. You should redo test, E85 with the smaller carb and regular with the bigger carb, I bet the results will also flip.

  • @TDG2654
    @TDG2654 5 лет назад +6

    John:"Talk nerdy to me."

  • @redorrick427
    @redorrick427 5 лет назад +1

    Hell yeah that first run on gr. prix was stellar.

  • @freddylaymon6629
    @freddylaymon6629 5 лет назад +3

    Great job guys! Me and my son have seen every one of your episodes. You guys build on a budget like we do. Keep up the awsome work!

  • @jamarie136
    @jamarie136 5 лет назад +4

    Love all the vids

  • @o0julek0o
    @o0julek0o 5 лет назад

    I love when ads are actually in the video. RUclips isn't getting any of the money AND I can just skip it.

  • @GruesomeJeans
    @GruesomeJeans 5 лет назад +1

    I have't made it to the end yet but I have to say, I love the American Express frame and the wheel/tire combo you guys have on it is like the cherry on the gasoline sunday. Someday I'd like to have a garage and the spare cash to get one myself.

  • @williamshaver5704
    @williamshaver5704 5 лет назад +1

    Hotfoot It'll be Fine is looking great, sounds great and is running like a bat out of hell. Ya all just be careful running that thing. I want to see more of your videos.

  • @Omc-Steelbone
    @Omc-Steelbone 5 лет назад

    What I learned when I built my engine. Use the old-style single electrode plug. The multi-electrode doesn't work as well. I picked up 8 hp by changing them. Small block chevy
    Have you ever thought ethanal injection? Also e85 runs cooler.

  • @blackopsrocks
    @blackopsrocks 5 лет назад +6

    Failing to put in an offset key to run e85? You would see more gains with more timing.

    • @CarsandCameras
      @CarsandCameras  5 лет назад

      The flywheel installed if fixed at 34 degrees I believe.

  • @keithcarlson6038
    @keithcarlson6038 5 лет назад +1

    Wow! at about 4:47 in the video... I think that's the fastest I've seen you guys take that corner by the driveway... by a lot!

  • @Cee64E
    @Cee64E 5 лет назад +1

    Larger air flow and the 15% alcohol will act as a coolant resulting in a denser air charge going into the engine. During WWII Fighters used methanol injection for that exact reason.

  • @derickmitchell9852
    @derickmitchell9852 5 лет назад +2

    John, how would your parents feel about a nice wide concrete walking trail in the yard? You guys are going to hit one million subscribers this year, time for a real racetrack.

  • @alangee79010
    @alangee79010 5 лет назад +3

    That was impressive and it sounds great. 👏🏻👏🏻👏🏻

  • @jamescampbell4205
    @jamescampbell4205 5 лет назад

    So my guess as to the top speed difference, Ethanol requires less air to burn at stoich. Meaning if you have the same airflow through a head you can use that air more efficiently in combusting E85 vs gasoline. That increased efficiency might mean your "choke flow" for ethanol is about 50-100 rpm higher which might translate in the 1mph more you saw.

  • @tonycompton6690
    @tonycompton6690 5 лет назад

    I've been following you guys for a while, keep it up. Love the video's

  • @handsolo657
    @handsolo657 5 лет назад +1

    The only way you could have gotten more speed on the same sprocket set, is if you gained rpm on the e85. It sounded like it had a little more “scream” in the second speed run.

  • @afberglund2764
    @afberglund2764 5 лет назад +2

    Nice driving!

  • @disastreee
    @disastreee 5 лет назад +2

    My moms Dodge Grand Caravan takes E85, but every time she uses it, 2 of her cylinders misfire and it has basically ruined the car. Whenever it’s in a lower idle it is really shaky. It is also quite shaky whenever we’re driving on the highway. I was wondering if Isaac can help determine what might be wrong with it. Also it used to be a rental car so I don’t know if that would affect anything.

  • @gretah3969
    @gretah3969 5 лет назад

    You need to continue this build. Shave the head, deck the cylinder, weld up the combustion chamber for high compression, E85 despite being 96 octane can withstand higher compression than 96 gas because of the cooling effect and higher combustion efficiency (cleaner, less carbon build up means less hot spots). 14:1 or 16:1, if you can't, advance ignition timing. I know the EPA modified the engine of a car to run efficiently on E85 and got 22% better MPG despite the fact that E85 has around two thirds the energy of pure gasoline by gallon. A combination of better volumetric and thermal efficiency.

  • @trentlawrence4536
    @trentlawrence4536 5 лет назад +1

    Love the vids guys !!!! Keep em up !!

  • @stevenmays5075
    @stevenmays5075 5 лет назад +2

    Love John he loves this stuff sometimes he cant talk right from the happiness of the drive of the kart

  • @MrNosajwhitey
    @MrNosajwhitey 5 лет назад +1

    I think it sounds way better with the e85 set up wish you could actually take em on a dedicated kart track and get them tires sticky and see what times they can do there

  • @El_Chompo
    @El_Chompo 5 лет назад

    My theory on the higher top speed is that since ethanol allows a much wider and more lenient tuning window, that means your engine has a better chance of running better while on ethanol and more forgiving of not having the perfect air fuel ratio and timing set. Also since ethanol runs cooler than gas that means the whole engine is cooler which is good because that means the air and gas coming in is cooler and denser.

  • @marthamryglod291
    @marthamryglod291 3 года назад

    E85 allows higher compression before detonation. That increases cylinder pressure, and if ignition and cam are correct, you get more power.

  • @Ryan-uz2cr
    @Ryan-uz2cr 5 лет назад +5

    You guys should get a hold of a mychron 4 or 5 timing system with the gps module. It will track speed, rpm, temps, lap times, and position on the track. The gps in the these things is accurate to 1 foot and as someone who has participated in national (wka, uspks, Route 66, Florida winter tour) racing series this data is crucial. Give aim a call and see if they will send you a setup. They are pricey but a good company and will get you up and running.
    Upvote so they will see this and we will get real data!! Thanks guys and great videos

  • @johng6673
    @johng6673 5 лет назад +1

    So you asked why the top speed increased with E85 over gasoline. Most likely it was the carb set-up, but E85 can give you higher horsepower gains through overall tuning and setup. E85 can accept higher timing advancements than gasoline without pre-ignition due to a lower flashpoint, it can run cooler is some cases, but it does burn a lot longer than gasoline because of the flashpoint. This was proven through Unbox Therapy with one of his see through motors. E85 ran cooler, cleaner, and the burn is much longer. In many cases with E85 you can get afterburn out the tail pipe with the right setup. So at higher speeds, you are getting a good, long burn. Try adding a little more fuel if it's running lean by the looks of that plug. The engine will run cooler and better. E85 really could be a great option, but because of the viscosity and lower flashpoint, you need more to burn, so MPG's can be less. Now, in a car, in town you won't notice because you gain power making you use less, but highway you see a huge difference. And by using E85 in cars, now the cost of food is going up since the grain used for E85 is the same that feeds Cows and other animals, along with fertilizers. But Corn and corn oil is up in price because E85 is now being used in cars. Catch 22.

  • @ericthered9655
    @ericthered9655 4 года назад

    Octane rating is a measure of how much heat is required to cause combustion. A low octane fuel will combust too soon and cause pre-detonation in a high compression motor. E85 has an octane around 103 IIRC. So you can run very high compression and combustion will proceed at the proper time.

  • @adamjankowski4315
    @adamjankowski4315 18 дней назад

    To take advantage of E85 you need to do timing advance 5-7 deg minimum up to 10 or so, compression 14:1 or so, and tune for around 9:1 or .83 lambda AF ratio at wide open. This will keep you in the safe zone for performance increase and truly take advantage of E85's potential. It is also a very clean burning fuel so reading spark plugs is a bad idea as you don't notice issues quickly. Get a wideband and learn how to use it for tuning.
    I loved running E85 in my turbo car back in the early 2000's. Fuel mileage sucked but the extra power and drivability of a cost effective readily available fuel was well worth the drawback. I was able to run 18lbs of boost and push 400 whp out of a 2.0.

  • @Ostenmaster122
    @Ostenmaster122 5 лет назад +1

    This is why i think you got the result you got. It all has to do with the size and nature of the ethanol molecule:
    First:
    Althought gasoline have a little less than dubble the energy density (gasoline: 47,3 MJ/l, Ethanol: 29,2 MJ/l) than E85, the etanol molecule is about 6 times smaller than the avarage gasoline molecule. This means that you can fit 6 times more etanol molecules than gasoline molecules in a cylinder. This is why etanol produces more power although it has a lower energy density. You can fit 6 times more power producing molecules with just a little bit less energy density per molecule. But the total power produced is increased compared to gasoline. This might explain the increased acceleration.
    Second:
    Diesel fuel is heavy, gasoline is a bit lighter and E85 is the lightest. The lighter the fuel is the faster it burns and the faster it burns the higher RPM can the engine produce. This is why diesel engines can’t turn at very high speed because the fuel burns so slow. So the probable cause of the top speed gain is probably that the E85 allowed the engine to turn at higher RPM because the E85 burns faster than gasoline.
    Also:
    This might not be relevant to you but it might be interesting to know. E85 also have a much higher octane rating than gasoline. This allows engines to have higher compression ratios and more turbo boost when running on E85. This increases the efficiency of the engine and, if the engines is tuned for power or efficiency, increases either power or fuel milage.

  • @fuzionviper
    @fuzionviper 5 лет назад +18

    Just to let u guys know the e85 only allows for better tuning not speed

    • @MatsuYoda
      @MatsuYoda 5 лет назад +7

      a better tune would make more power in many areas, therefore more speed...............

    • @ImRichRu
      @ImRichRu 5 лет назад +3

      It does give more power because its cools the charge more and you can run it stoichiometrically leaner, which means more air. That said, its only about 5-7% more power, everything else being equal. Increase timing, and you can get like 10% more power. On a turbo car, the gains can be far more significant because of the charge cooling.

    • @keithheiskell2389
      @keithheiskell2389 5 лет назад

      just not better tuning make more horsepower equals more speed

    • @nathanbutler8240
      @nathanbutler8240 5 лет назад +2

      I hate to break it to you dude but if you put more fuel and air you have more power

    • @VroomNBoom
      @VroomNBoom 4 года назад

      E85 increases hp hp=mph torque=acceleration

  • @neil1150
    @neil1150 5 лет назад +1

    I'd love to see another test, the smaller carb, and E85, how about it ?

  • @karlsgarage6477
    @karlsgarage6477 5 лет назад +3

    SICK drifting on the first one bro

  • @davidtappe5337
    @davidtappe5337 5 лет назад +3

    I was going to watch your video but I spent an hour at ridgewallet and another hour at Go power sports and my wife took my phone because she thought I was shopping again. I have a bad habit of buying merch from your sponsors. Wish Harley Would sponsor you.
    Bahahaha Bahahaha
    Got my phone back, I paid her shoe bill.

  • @wideband
    @wideband 5 лет назад

    Get a wideband with a clip on 02 sensor so you guys can properly tune your stuff. I'm sure plenty of power gains could be had if you were able to nail your afr's.

  • @karlheinrichs3094
    @karlheinrichs3094 5 лет назад +12

    Is no one going to mention "banana sauce"?😂

  • @lylekehrer6159
    @lylekehrer6159 5 лет назад +1

    Either way, looked like y'all were having too much fun on the Grand Prix. It was bookin' with both fuels though!

  • @RC_Trailblazers
    @RC_Trailblazers Год назад

    I'm no expert and I understand you're not at your parents anymore but for a throwback. The only turn I can see where you may pick up a tenth or two would be around the 2nd corner. Understandably you gotta get out of it enough to make the turn but trying to keep the rpms up so you're not low in the torque band after exiting that corner would pick up time a little.

  • @ronniepate4315
    @ronniepate4315 5 лет назад +2

    That was the fastest looking lap by far. Those trees were getting pretty close. Love the video , but be safe.

  • @barakcollins1506
    @barakcollins1506 5 лет назад +4

    E 85 is not designed for small engines but it works

    • @austindoud273
      @austindoud273 5 лет назад +1

      It's literally just alcohol

    • @jaded2424
      @jaded2424 5 лет назад +1

      @@austindoud273 85% just alcohol,15% gas.

  • @tjslifeispie
    @tjslifeispie 5 лет назад +2

    That intro was fire🔥🔥🔥🔥

  • @TheStoney07
    @TheStoney07 5 лет назад +1

    Its sounds so good guys this is a great lil build

  • @yeffocyort7734
    @yeffocyort7734 5 лет назад +3

    You guys should run gas in the 26 mm. I bet itll run faster then the e85

    • @samualwhittemore228
      @samualwhittemore228 5 лет назад

      As long as the have enough air and no predetonation issues. You bet.

    • @nicolasp7395
      @nicolasp7395 5 лет назад +1

      Yes is true, or if they want to use e85 they have to increase the compression

  • @Skater3z3b
    @Skater3z3b 5 лет назад

    Hey guys short reason it might be faster with e85. E85 is naturally oxygenated, meaning it has it's own oxygen to bring to the table when burned. It's part of the reason it needs more fuel. Combined with the bigger carb its most likely gaining mid range and top end through the extra air flow and overcoming the head shortcomings by providing a very small amount more of oxygen that the air is no longer able to provide at that flow requirement ( this of it like a very very very tiny hit of nitrous)

  • @ImpenetrableSilence
    @ImpenetrableSilence 5 лет назад

    The top speed difference could be because e85 produces more power across the entire range. Even running out of air, E85 can run leaner(relative) than gas before causing burn problems that rob power. Where gasoline may get shaky at 13:1 afr, E85 will burn better at CORRECTED 13:1 afr. BTW There's actually a term used called lambda that corrects difference in fuel ratios between fuels. A stoichiometric mix for gasoline is 14.7:1 which is lambda of 1. E85 has a stoichiometric mix of 9.765:1 which is still a lambda of 1. 13:1 on gas is a lambda of .884 whereas the same lambda on e85 is ~8.6:1.

  • @bashr52
    @bashr52 5 лет назад +1

    Wow, that 22mm carb was running rich!

  • @SteelyEyedMissileDan
    @SteelyEyedMissileDan 5 лет назад

    Just a theory, I have no idea if it’s valid scientifically. Race gas with ethanol is usually referred to as oxygenated fuel. It’s chemical formula has an oxygen atom, where straight gasoline does not. All things considered equal (head flow, carb flow, etc.) E85 should automatically flow more Oxygen into the cylinder than gasoline. Chemical engineers please correct me if I’m wrong, but could that account for some of that top speed boost?

  • @Turbochargedtwelve
    @Turbochargedtwelve 5 лет назад

    It’d b fun if you guys could find an old PTO dyno sitting around some old AG service shop. It’d be great for testing and tuning these engines

  • @abyssflight3907
    @abyssflight3907 5 лет назад +1

    Do you guys use slicks to minimize damage to the grass or just because it's more fun 😁

  • @killzone9810
    @killzone9810 5 лет назад +2

    I love the videos guys, I hope to be building with y’all soon

  • @damienhumpherys8938
    @damienhumpherys8938 3 года назад

    I’ve decided I’m gonna build one and I’ve got the motor. You guys should do a video of where you got the parts and how much it all cost to build

  • @jandeman198
    @jandeman198 5 лет назад +1

    fun video but i don't think you can learn too much from it...could be jetted a bit better on E85 and a bit worse on petrol...that might be the whole difference. Dyno tuning with 02 readings and perfect jetting can show the real difference.

  • @mauricedavis2905
    @mauricedavis2905 5 лет назад

    It needs more ignition timing. Read the spark see where timing make is after each adjustment and stay safe but it will make a big difference

  • @RichardCranium321
    @RichardCranium321 5 лет назад

    The different sound came across on cam, almost a hollow raspy cackle instead of a "popping" detonation sound.

  • @christiantorres5282
    @christiantorres5282 5 лет назад +3

    First love your videos keep it up

  • @krakhedd
    @krakhedd 5 лет назад

    Top speed - if you suspect an air intake restriction, the E85 should make better use of the air that's available - E85 stoichiometric needs less air than gasoline

  • @jamest.5001
    @jamest.5001 5 лет назад

    You need to raise the compression, to take advantage of the E85, alcohol has a octane rating of 120+ while needing more to run a engine, ( est. 30%+/- ) also timming may need adjusting, to get the most out of the engine, I was thinking about building a 3-5 hp engine, to run on ethanol, methanol mix, to run a generator that originally required a 10 or12 hp engine, 8-10kw, my goal was ultra effiencey, and cheap fuel, made at home, and low emissions, it would likely have 10:1 compression minimum, the methanol ethanol mix would burn a little more like gas, start a bit easier in cold weather, ethanol isn't the best for cold, methanol could make cold starts easier,

  • @markoajduk7096
    @markoajduk7096 5 лет назад +1

    We need something like Cleetus done with leroy,only not as much power.300 hp big go kart would be awesome.

  • @michaelshedd3352
    @michaelshedd3352 5 лет назад

    Top speed picked up because you had a bigger carb letting more air through. The 22 probably Max’s out at full throttle. Where as the 26 let you go just that little bit more.

  • @WilliamsMotorsports1x80
    @WilliamsMotorsports1x80 5 лет назад

    In drag racing while comparing time slips, we use mph to compare if heat is robbing power. The e85 will burn cooler making more power. Thus gaining mph.

  • @R.N.GPerformance
    @R.N.GPerformance 5 лет назад

    Pretty fast. I remember back in the day. Racing hopped up 3hp brigs motors. They were hitting 70mph on a paved track lol

  • @jamesrogers3654
    @jamesrogers3654 5 лет назад +1

    Did you guys consider changing the heat range on the plug? Since E85 runs cooler there may be a bit more power to be had by a plug change.

  • @HoosierDaddy_
    @HoosierDaddy_ 5 лет назад +1

    E85 or not, that kart is a beast!

  • @dayneolsen1501
    @dayneolsen1501 5 лет назад +1

    You guys should do a Volkswagen smog pump supercharger build!

  • @Synic08
    @Synic08 3 года назад

    That first Grand Prix lap... that was some good driving... maybe you have the course down well, but from expierence racing karts, holding a slide like that in a kart isn’t easy.... and it wasn’t just controlled, it looked like the fastest line... I’d love to see you two wheeling some karts on a track one day...

  • @TommyTen10
    @TommyTen10 5 лет назад

    Next hook up a propane tank, and run it on LPG. Higher calorific value than petrol(GAS). 1stly try with gas phase injection then liquid phase injection, (LPI out performs regular petrol over here in UK [95 octane]).

  • @stevet5379
    @stevet5379 5 лет назад +1

    Your plug is coming out that black and sooty because you're running too rich fuel mixture. Aside from that you can't get an accurate comparison between pump and e85 unless you do a proper tune first for each fuel type. Two diff types of fuel means two diff setups for the e85 to begin to really work and show you what it can do. The carbs, well that's self explanatory... bigger (up to a point) will normally make your giddy-up get up and go... ;)

  • @JonLasaga
    @JonLasaga 5 лет назад

    I think the reason you got better top speed was because of the tune on the engine when you were driving with gas some of it was ignited in the exhaust pipe but when you put the e85 in it sounded like it was running a little lean instead. I think you could get even better performance with more fuel going into the engine with e85

  • @dajiban9325
    @dajiban9325 5 лет назад +1

    How is the predator run motorcycle doing? Would love an update.

  • @jasonpetrich4141
    @jasonpetrich4141 5 лет назад

    The driveway is becoming a big jump now. That turn is scary!!!! Have either of you guys ever hit the satellite dish pole. That looks like game over

  • @KraeseRepairs
    @KraeseRepairs 5 лет назад +1

    Everytime you guys bring out the American express 2.0 it makes me want to buy one from go power sports

  • @18wheeler77
    @18wheeler77 5 лет назад

    5:45 who’s that? Is that Ike? Didn’t recognize him with his hat on! Crazy!!!

  • @tehcompbuilder
    @tehcompbuilder 5 лет назад +1

    Cooler air intake temps on E85 means denser air at high rpm so therefore higher top speed?

  • @derpydog1008
    @derpydog1008 5 лет назад +3

    John: proof is in the pudding.
    Me:mmmm pudding.