Dyno Testing the 2014 Chevrolet Corvette Stingray Z51! The J-Turn Ep. 16
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- Опубликовано: 17 сен 2024
- On this episode of The J-Turn, Jessi Lang heads to K&N with the all-new 2014 Chevrolet Corvette Stingray Z51 to run it on the dyno and see just how much horsepower the C7's V-8 produces at the wheels. She also gets a tour of K&N's multimillion dollar facility where they create every type of air filter under the sun. K&N is eager to get their hands on the C7 as they've already been hard at work creating a prototype air filter for the car. How much extra power will K&N be able to extract from the all-new Corvette?
Read more about the Corvette's performance on the dyno here: www.motortrend....
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Jessi must be so fun to hang out with, A beautiful girl that not only likes fast cars, but own one? You can't beat that combo. :)
K&N' filters do flow almost 50% more air than a stock filter.
They also filter 50% LESS the dirt.
Do yourself a favor and buy a larger filter, get more airflow while filtering dirt.
Don't tell me you believe they gained 15-20hp just by doing that, please tell me you don't.
omar fuller Those HP gains are from deleting the factory resonator box.
OOH Come ooooooon, you don't believe that, look inside you, you're better than this.
omar fuller Refractory resonator boxes inhibit air flow to meet sound regulations.
My Colorado picked up 1.1mpg by deleting the box.
same goes for LS1 trans Ams picking up 14RWHP by a resonator deleted SLP LID.
Stephen Bagnell Now adays car makers are not letting any mpg getting away from something as stupid as an air filter or an air box. Gains will always be within the margin of error. 400whp car? 4 hp is 1%. You *might* see 4 whp difference from an intake supposing it doesn't fuck with the maf sensor, or the ecu doesn't tune itself back where it was after a few miles. That's 1%. Go on a cooler day and stock will probably dyno higher...
Shows graph on all dyno pulls till filter. Then u just have to take their word for it lol
Well said Xmvw2X, most production cars were designed with paper filters, then K&N came out with their revolutionary filter which actually does work! The trick is (if you didn't know) for cheap HP is change to a K&N filter which is reusable and get a free flow exhaust for 10-15 HP. Btw my camaro caught fire at the gas station( cause i flooded the carb!) they had to use a fire extinguisher directly on my K&N but I was able to drive it home within a few minutes & the filter is still on the car
I have a new black one in my collection. I spend every second with it thats how much I love it
Don't let the pretty face fool you. As well as managing her position in motor trend, she manages other programs and is also working towards her PhD. Very impressive!
But the J turn isn't too bad. Hats off to Jesse
Great episode Jessi! That C7 looks amazing! And I appreciate the in-depth look at K&N.
Dude is huge! Pretty impressive results from the filter as well
I know, right? When I saw him next to her I thought she must be 4'2" but she looked normal height next to the Vette. That guy is a behemoth.
I've never been a huge K&N fan, but I love that they are made in the US of A. Would have loved to hear about why different dyno's produce different numbers and how you decide what gear to do the pulls in. With it being a 7 speed wouldn't 5th gear be closer to 1 to 1 for the dyno pull?
Jessi. I love your shows. Nothing but encouragement from me.
Freaking Jessi always coming out with cool stuff to watch all day. She needs more episodes.
I say this. And I hope other people who don't like jessi (I'm not too fond of her myself at times) cheer her on to try to BREAK THE SHELL of professionalism that keeps the inner gearhead contained. She needs to let it loose and she won't be able to with the pressure of us youtubers. So I say CHEER and PRAY that I'm either completely correct in my assessment or totally wrong and she resigns. Either way if she's really got it in her our support will make it bloom into something beautiful.
So cheer. Hopefully she'll understand it's not personal and HOPEFULLY she'll "unpretty" herself a bit to where we can see HER not just how pretty she is. I think that's why motortrend has grown so much. I feel like I know these guys. Like I could drink with any one of em and NEVER get tired of the conversation. Jessi feels too work oriented and I think if she breaks that she'll break out and shine like my bearded idol with the hipster glasses. :D
Please make a Brazzers version of this!
"Let's bring it into the shop, get it strapped in and see what it will do!"
"It goes all the way back there. I never guessed it would be so massive!" lmao!
This girl is the best presenter in Motor Trend not because she's sexy no but she gives you excitement on a daily car show. I think she deserve to be in Top Gear UK
The ECU would compensate for that with the stock maps. All it needs to know is the airflow has been increased, checks the map add that amount of fuel, validate with EGT check. A/F ratio don't get changed but you now have more air so more fuel can be added hence more power.
Great episode!
Just loved Jessi even more after watching this! She makes the video that much more exciting to watch! Love ya J-Turn! Keep it coming!
No, the stock fiter is designed for a certain amount of air filtration (for engine protection in a variety of environments), their filter just filter less the air, thus more airflow.
Haha I like how they didn't even show the actual numbers after installing the new filter
Sadly there's people who believe you can make 15hp in a c7 corvette just by upgrading the air filter, i mean the old one wasn't even dirty haha
Yup, I wonder how foolish they believe us to be.
esqueue HAHAHA
look, to be fair, even if that air filter genuinely did make a gain of 15 hp, they still wouldn't have shown us the actual numbers. They mentioned very clearly that the filter is still a "prototype". So it would not to be in their interest to reveal anything useful before they are ready for it, otherwise a competitor might beat them to it. Maybe when the filter is in production and available for sale we can then truly see whether this is truth or a lie.
Basel Kader It would be crazy for GM to leave 15 horsepower trapped in an inefficient air filter.Modern vehicles gain almost 0 horsepower by filters. If there is a gain, you have to sacrifice something along the lines of increased noise or decrease filtration. Since it's just a air filter, there will be no noise increase so you are just decreasing the filtration which is bad.
Awesome video Jessie, showcases one of the industries best in airflow technology, in the I.E.'s very own back yard. Kudos to K&N and their products, always #1 in my book! Great way in describing the different types of dyno's too BTW. Dunno if you remember, but I'm taking my 1st journalism class now, actually just got out of it, and I'm loving it!! Can't wait to get to where you're at!!
Nice gains! I wish I could have dyno'd my 2015 Infiniti Q50 3.7 RWD after adding dual drop-in K&N Air Filters. Surprisingly, I and everybody who rode in my Q50 noticed a pretty big difference in acceleration after these K&N's were installed... Especially from 4000-7500+ rpm's! It felt like the difference betwwen going WOT in a car at 30 degrees versus going WOT at 90 degrees. In a 3,600 pound car, you won't feel anything under at least a 10 HP gain, I'm guessing. I truly feel like my Q50 picked up 15-20 HP with these two K&N's. Just my opinion. I now have custom twin long tube CAI's, and other than the louder sound now, it only felt slightly quicker than it did with the K&N's before I EcuTek tuned it right after... Now my Q50 really moves. But for just a couple of drop-in air filters, I was extremely impressed with K&N! Nice work guys!
K&N just made the filter. The rest of the intake system is all AEM. The design of the tubing for the intake is where the real R&D comes in. Using the best filter possible eliminates that as a weak point.
jessi,where have you been ??? have'nt seen you for a while ...the guys are good but it gets boring without you ...great vid ...thanks..........
Another great J-Turn. I am a little gun shy on the factory tour as it was close to being an infomercial. I have watched a number of auto shows that earn a large majority of their income from product placement. I understand why they need to do this. The information and the production was top caliber though and I feel I know more about the dynomometer and how it is used. Really good video.
20wrhp from a filter? I wanna smoke what they are havin'
consider that fact that the factory designed filter is designed for keeping particles out of the engine, not for flow, this is a tighter tolerance engine so clean is important for longevity, hence a restrictive filter, most new car come with a cold air intake from the factory now days, combine that with displacement and this is reasonable for a 15 hp gain, however on a smaller engine you would not see this much
So MT figured out how to get me to watch the Jturn huh! They put corvette z51 and Dino in the thumbnail caption. Touché MT well played sirs.
It depends on how restrictive the manufacturer wants makes the car. The speed limiter is another example of this; maybe for warranty/reliability reasons. Also, Chevy will being doing more powerful versions of the C7 in the future, so its not far-fetched to say that they want to keep some of that power underwraps. I think their goal with the Stingray was to keep the power neatly between the C6 Grand Sport and the C6 Z06.
most manufacturers claim flywheel power or engine output, it allows them to claim higher power, and there is a different wheel hp number depending on transmission, this way they can claim one power number as opposed to several different number depending on transmission
K&N used my 08 C6 to make the CAI For LS3. My 09 C6 A6 Auto on DYNOJET Made 378.86 Max Power and 384.06 Max Torque at 80.98 F, 28.91 in Hg, Humidity: 16%. Real world it turns about the same times with the stock CAI with the Stock filter or with the Z06 stock CIA with the Stock filter or the K&N CIA. The K&N Stock filter replacement filter in the OEM CAI also seemed to make the same times and MPH. The K&N system did give me a little better time, may be a 1/2 a tenth and 1/2 M.P.H. stock car.
If you compare the pulls before and after the filter you can hear they ran it up to at least 7k rpm with the k&n filter
Power to the wheels is whp, bhp (base hp) is the power at the crank of the engine before drivetrain loss. All manufacturers spec the power at the crank.
Chevy makes the best sport cars on earth in my opinion. For 65,000, you can walk away with a car comparable to that of Ferrari 458's, 110,000 vipers, and even 150,000-200,000 gt40's. You give GM 150,000...watch out guys, Ford gt's, mustangs, and vipers will all get smoked. Look what gm did in 2009 with the zr1...holy shit.
Is there anything better than Jessi Lang behind the wheel of a brand new corvette? :) It just seems so natural.
A car that goes 190 that anyone can afford, Chevy you are the reason I love American cars all the foreigners who hate are jealous they had to pay double and still can't go that fast!
It's not surprising really. The filter area isn't all that massive for the engine size, so there will be some level of restriction with the change. Chevrolet engineers met their design goals with paper, but there's often room for improvement. I've owned a variety of vehicles and have used K&N on pretty much all of them. I've only had one car that did not show an improvement but only because the filter area vs engine size was quite significant, basically double what you'd normally expect.
The dyno test should be apart of every car review like all the other test.
2014 corvette looks dope can't wait to drive it in a video game. Even if was wealthy I'm 6'4
Hopefully she will. I've seen her do some drag races in the past in some manuals though.
I've had a K&N in everyone of my cars, I love them.
And it just gets better! People like you crack me up, so I appreciate the laugh. Defending her? The only thing I did was commented on the dude's massiveness, nothing about her. I said she doesn't look small (like a dwarf) next to other hosts making a point that further proved my point that this K&N guy is a BIG dude. I couldn't care less about Jessi or what you or anyone think about her, you mistook what I wrote.. maybe the whiskey played a role? Either way thanks for the laugh :)
Usually when a manufacturers put a limit on the vehicle its because of limitations they discovered or from a specific vehicle part/s. e.g. Most times its as simple as the speed limit of the tires. Sometimes it may be for engine or transmission longevity and they limit the vehicle for warranty purposes.
-How are you Burt?...
- Still getting BIGGER!!!
I like that white single cab chevy in the background at the 2.30 minute mark. GM should have offered those with the 6.2.
displacement plays a big factor as well as factory air box design and filters very from factory, wile gaining 15 hp from a simple filter upgrade is possible most cars will never get that kind of gain, this vvt ohv direct injection motor however it is reasonable to see this kind of gain simply due to displacement and filter restriction ,intake design has significantly improved on factory cars in the last 10 years, due to the after market explosion
that depends on climate, the gains are only due to slightly more air flow and air temp entering engine, colder air is more dense wich results in more compression, the gains in a warm air intake vs stock depend on how restricting the factory filters are, displacement is a factor as wellwell you will see minimal gains on most cars 15 hp is not typical, 2-5 is a more reasonable gain, on forced induction the gain is only from air temp, spool time will be affected by restriction, not power output tho
Jessi owns a WRX....she just keeps getting better!!!
no but i did dyno my expedition and replacing the stock set up with cold air intake and removing a intake baffle and adding a throthle body spacer gave me 10 hp extra
What a beautiful powerband!
Absolutely amazing how great these K&N filters are, 15hp gain on dyno and they did not even use fan for the dyno run (end of sarcasm).
Jessi! :D...corvette is a perfect car for you! Screw other supercars! This ones perfect
they always quote the engine (crank) hp, the hp number you get on a dyno is the wheel hp. Assuming that the 460 hp from Chevy is correct, that means that there is a 13% loss of hp to the wheels, which for a rear wheel drive (rwd) car is really good. I usually expect a 16-17% loss on a rwd car.
K&N supplies the filters that come in AEM Intake Kits I believe.
Thank you for the video
Jessi, this is the first episode I've watched of J-Turn, and I must say, both you and the video were epic! Gosh, this car is what makes me jealous about the fact that we just don't get any muscle cars here in South Africa (unless you import them, too expensive though)
Anyway, keep on making great videos and being epic
i think it just drops filtration rate. then air flow sensor (or map sensor whatever) measures more air quantity than stock filter and ECU shoot more fuel for ideal air/fuel ratio. as a result, it has more power.
I was thinking, " What the hell does this meee- HOLY SHIT he's enormous!" :)
You realize modern cars already take advantage of cold air. If you noticed the filter was all the way on the side of the car, probably sucking air in from the fender. CAI's on most cars don't do much, but a better breathing filter can help a lot.
Even on a 400hp car (a new one at that) I still find it very hard to believe.I doubt you'd get that increase in power even if you took the filter off all together.
Great video! Jessi (soon to be Dr. Lang) has some of the most informative and entertaining reviews on the web.
Thanks for brightening up my morning Jessi,pretty sure thats the color I want on my vette someday.I would have liked to see the results after using all 3 dynos.
Jessi -- that wasn't ZR1 level speed, but 192 mph on the dyno -- still quite good. Then again, you went around 184 mph in a Hennessey Camaro. :) (As seen here on the J-Turn).
nice vid. nice to see the factory...and thumbs up to Jessie rocking less make-up. Less is better. I'd love to see more facility tours like that...
Companies sometimes get a vehicle for R&D before it's made available to the public. Hennesy has already tinkered with a C7, so why can't K&N they been around longer. Fact is if you get better airflow through the engine it's going to make more hp, you can't tell me I'm wrong.
I'm pretty sure the gains are on the curve. He did say: "15 up to 20hp gains".
It's so nice to see the C7 in a color other than red haha.
I thought only honda drivers believed in 15+hp to the wheels with air filters.
A cold air intake and high flow exhaust is a lot more than banging in a new air filter.
Let's see the K&N filter dyno chart please!
You can ask that question about every single aspect of every single car. Why didn't they make more horsepower? Why didn't they make that lighter? Why didn't they make the tires thicker? Etc.
Another great video that goes into something I have always been curious about.
Hey even at NRE they where surprised that a K&N filter gained 30HP on a OPEN air (=no filters at all) turbo setup
I'd say the most gain in that pull came from removing silencers and baffles in the intake system. No fkin way a filter alone is giving a 15 rwhp gain.
Interesting video; good stuff Jessi!
on high power cars you can get 5 % increase with a cold air intake, and another 5 % with a high flow exhaust
They probably decreased the air intake on purpose to both lower emissions and get rid of loud engine sounds to meet decibel requirements.
Love how they don't let you see the graph clearly when they claim 15 - 20 hp gains
i like how half of that video is actually a K&N advertisement
That was an amazing launch at the beginning.
Some drop in filters will produce that, depends on the car and how well it accepts mods.
My high school had a super flow dyno
I put one in my car and it really did gain he and tq 12ph 9tq and 2mpg better. Witch for a 45 dollar upgrade ain't bad. I'm more excited about the 2mpg lol
Still made in the US. Thank goodness
I've been in the car game a long time and If i could pick up 10-15 hp rwhp from a k&n drop in I'd buy stock in the company.
whether you feel it or not if the claims are accurate, 15hp IS a measurable difference and at the end of the day every small mod adds up.
really cool and chill that guy
That's cool, I'd like to see Jessi lap a manual at Laguna Seca.
Did not see the "Hockey Stick" display of the C7 track mode.....would have thought that they would have seen what the track mode curve looked like.
this was shot in Riverside CA :D
My point is that if it was so easy to make 15 HP that all GM needed to do was put on a different air filter, they probably would have done it. It's cheaper than better cams, intake manifold, exhaust, etc. I really can't imagine they would spend millions of dollars developing the engine like it is to make as much HP vs fuel mileage and then dump a cheapo air filter on knowing they could have made the same power and saved more money elsewhere.
I want that C7 Stingray and that 2014 Silverado that K&N had. :p
I have used their filters on several of my cars. I've never seen anybody gain 15hp on an N/A engine from a drop-in filter. From a full CAI? Sure.. on some cars. K&N filters have even been shown to lose power on the Mustang GT's 5.0 liter.
K & N makes AEM'S filters! Did not know that.
Filter companies always make huge claims like this. Whenever people actually test this stuff on a shop dyno, they're lucky to get more than 7 or 8hp out of a whole cold air intake setup. I don't believe that a filter, in the factory airbox produced over 10hp, let alone 15.
When the 350z first came out, companies were claiming 12 to 14hp+ for intakes. I personally witnessed dyno runs where the BEST performing model made 7hp, the other 2 brands tested only made 4hp,
Well on a car with that much horsepower, it's not that uncommon to unlock that much power from simple upgrades like a high flow filter. Now if you're getting a 10-15hp increase on your stock Honda Civic from a filter, then that is a lot harder to believe.
I dont know about that because she likes manuals as well. The thing is though, is that automatics have gotten so much better in this day and age then what they used to be. Would I buy an automatic corvette over a manual? No. Would I buy a corvette that is DCT semi automated manual over a traditional manual? Yes.
That's exacly what motortrend wanted , to get you guys talking about that girl , At first I was like omg whats a girl doing reviewing a car but then I thought I was funny how she was asking honest questions ,
Really nice Jessi thanks...
it would seem that it did, thought I do wish they woulda actually showed it :P