8.5kw tuned BAC4000 Destroys Our SurRon Lap Record
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- Опубликовано: 11 сен 2024
- The highly anticipated lap times for the EBMX 8.5kw tune on a BAC4000 and the stock bypassed battery. We know it's going to break all the records, but how much faster? Can it beat the CRF250f? How fast is 8.5kw? Let's find out!
Lap Time Leader Board
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Stage4 DVO Suspension and Wheel Package
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BAC4000 with EBMX tune
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0:15 Brian putting a pass on Nathan with 8.5kw
0:52 Moto Dudes killed our batteries
1:18 Bike Overview
2:45 Brians Lap - Chasing Rabbits
4:49 So much more energy required to ride this bike
5:34 Nathans Lap
6:52 Corner Speed
7:03 Top Speed
7:14 Results
8:50 Lap Time Leaderboard
You put the effort into these videos CCW well done. 😎⚡️✅
Excellent review of the latest tune, Brian and Nate!!
I've had my stock Surron for a week and I want to mod it up. So glad I found your channel. The info on here is fantastic.
Was on the fence about how much this setup really helped cuz the stock bike is a moped if you are already a rider. Great content. Proof enough for me ! I'm sold
power upgrades are game changers, 2x or 3x doesn't sound like a lot, but once you ride one it's kind of mind blowing the difference. The only downside is cost, it often leads you down a path of more upgrades such as larger battery and better wheels/tires.
I'm torn between 21/18 and 19/16, extra clearance and stability is very tempting for more enduro/trails oriented rides, but I don't want to lose too much range, do you think extra weight will make a drastic difference? Not too concerned about the power, because I have Nuc 24f controller with aftermarket battery, which should have plenty of juice to run bigger wheels. Also are you planning to do the same testing with Bac4000 and 19/16 setup?
The bike with the green DVO in our videos is a 16/19 and it is getting a BAC4000 in future videos and we fully expect this setup to be a faster setup for lap times on our turn track. You will certainly see a future video about that. The 18/21 will go up to a BAC8000 and remain on 72v. Our personal opinion is 16/19 is the best all-around setup for Surron as it minimizes weight specifically rolling mass and chassis/suspension flex and keeps the bike a precision carving machine. 18/21 we recommend for people wanting to make the surron larger, which many want to do, and the larger diameter rolls over terrain a bit easier. It's a very personal choice for each person. 16" rims have been incredibly difficult to source during the last 4 months which is why they have been out of stock for so long. We just got a decent sized shipment of them and we will be posting them for sale on our website soon.
@@ChargedCycleWorks Thanks a lot! I'm not tall (5''75) and heavy guy (almost 200lbs fully equipped, have to lose some weight lol), but I want more clearance for single track and jumping over logs and stuff, also shouldn't 21/18 provide more full-sized enduro feel floating over rough terrain and not bumping from one side to another. Even with FOX 40 Surron feels more like a regular bike than Moto, hence my obsession with 21/18. But losing power and range is not fun either, so no perfect options I guess.
As for 19/16 setup , after researching your website I think you recommend Shinko 525 cheater for the rear, but what's the perfect front option? Shinko 524 is on the heavier side, so Mitas Superlight or Bridgestone M203 is preferable, or it doesn't matter much and 524 just plays better with the rear Shinko? Also do you recommend using a raising link for this setup and if so, 0.75'' or 1.5'' size?
I want to come out and ride!
You guys gotta put ktm lap times on the leaderboard!! Love the vids… keep em coming!
coming soon, we have video of Nathan on a KTM200, Brian on a KTM300, and some friends who raced at the local pro level on 450's shot the same day as this one, just need to find time to edit :)
Wow nice ride ...👍
Also what size of rear rim you suggest for sur ron? 2.15'' probably has more grip, but is heavier, does it matter much?
We build both 1.85 and 2.15 all the time and the difference is not noticeable. Ideally the 1.85 is best for the Ron since we use 90/100 sized tires for both 16" and 18", but 18x1.85 is more rare and difficult to source especially in todays supply chain mess. 16x1.85 is the size of almost all 16" rims and is more common in that size. If you have a choice pick 1.85 but if you don't have a choice (likely) then 2.15 is just as good.
@@ChargedCycleWorks Thanks!
Hi guys, do you recommend to bypass the stock battery? No issues with that?
Hello, although many people have done this we no longer recommend it. It's dangerous for one to open a large battery like this. It will void BAC warranty, they posted a memo about this a few months ago. And, most of all you won't be very happy with the performance. You'll get roughly 2x the power for about 50% of the battery and then under 50% the voltage sag is really bad. We know battery upgrades are expensive, but they are almost required for true power upgrades.
Is there a public indoor MX track for these yet.
I've seen some in other countries, but not in the USA.
is the bac 4000 worth it on stock batttery? what does it do to the range?
Most people start w a BAC4000 on their OEM bypassed battery but it will impact range if ridden in the higher power modes. More power = less range on the stock battery. That said, on the same ride w similar distance and speed, Brian (8.5kw tune on bypassed stock battery) has returned with more battery remaining than me on my stock bike. Biggest reason is I rode WOT and he only needed level 3 of 5 to keep up.
@@ChargedCycleWorks once I buy the bac4000 how can I tune it to 8.5 kw?
@@GlassfilmWeddings we’ll tune it specifically for your bike and riding style before shipping. Send us an email to info@chargedcycleworks.com if you have any other questions.
what sprocket was on the bac4000 bike
18/21" wheelset with 60t sprocket
few things, isn't 8.5kw way too much for stock battery, and u guys never rode it on that power so u can't say it's at 8.5kw
Hey Max, of course we did. Days full of riding and testing don't always make it into one focused video like this. We've tested wide open at 8.5kw to understand battery sag, heat generated, top speeds, etc. Nate's reaction here was the first time he rode the newest version/latest refinement of this tune. He also put down many laps at 8.5kw but the bike was too fast on this small track to produce a faster lap time. The edit you see here was focused on the fastest laps times achieved that day. We have tons of 8.5kw footage that will make it into future videos.
@@ChargedCycleWorks thank you, would you say 8.5kw is safe to run
@@Crohniac Yes, it is safe because EBMX has done extensive testing and tuned for low voltage cutoff, a must-have safety feature for oem bypassed batteries. The protects the battery from draining too low, which can permanently damage the cells/pack.
Hey Max! I've been running 8.5kw for many months with OEM bypassed battery. The reality is you cannot use 8.5kw in most of our mountain single track riding, one accidental whisky throttle and your bike is 1000' below you. So I am usually running about 50% of that power probably 4-5kw to have a safe rideable experience. The EOM battery can produce this power after bypass, and I've never had any heat issues in any of my riding with this setup. BUT, there is a big drawback with the OEM battery and it's voltage sag. You won't notice it on a full charge, but as the voltage goes lower you will certainly start feeling the loss of power. 67v is full charge, 60v is about 1/2, and 50v is practically dead and 48v the tune cuts power to protect the battery and motor from damage which is very important aspect of the EBMX tune that not all tuners are dong. Once below 55v you start experiencing power cut-offs because you'll twist the throttle and the battery voltage will sag to 48v and the tune will cut power for protection...you wait a few seconds and start going again and try to limp back to the truck. This is the biggest drawback to the OEM battery and why so many buy battery upgrades. And of course for extended ranges, once you have more power you will probably reduce your range using that power. So, like Nathan said in his reply, more power does not always equal more speed and this is why I spent most of my laps on 4/5 power vs 5/5. In a future video once we move up to 72v and 12 or 15kw which my bike currently is running, we'll go back and do a video where we time laps at each power setting to determine where the power gets too unruly to go faster and actually makes you slower.
@@BrianLampright913 Thanks for taking the time to respond, it's go to know real world experiences and not just numbers so it means a lot, i'll be running with the stock battery for a while but hopefully later on i can afford an aftermarket battery!