Burger Motorsports 2018 C63 Dyno Testing
We were able to get our new C63 strapped down today for a little tuning. Our development car is all stock with around 800 miles on the clock, base model, $68,000 sticker price. Fuel during testing was 91 with a couple gallons of E85 mixed in. We think these results will be repeatable on good quality 93 octane fuel but will retest in the future. Temps in the 70s.
The cliff notes:
1) Stock performed better than expected at 465whp / 490wtq, stock boost was ~9.5psi under these testing conditions.
2) Using the JB4 we raised boost up to 15.5psi peak but kept a nice taper up top to keep things safe. Power jumped up to 537whp / 597wtq.
3) We previously determined that the factory intake is a major restriction so we installed a prototype BMS intake system with the car on the dyno and the reduced restriction allowed it to hit 561whp.

4) We ended up dialing back torque a bit in the end to smooth out the power delivery but there is plenty on tap. This platform can probably break 700wtq if you really want it to.
5) With all the torque on the road we've set the JB4 to limit boost in 1st and 2nd gear for improved traction. It's a nice JB4 user adjustable option there for you when you need it.
Also worth mentioning the JB4 is different animal than all of the other C63 tuning boxes currently available for the platform. Offering CANbus, fuel control, wireless logging to your smart phone, and a lot more to be discussed later. We're just getting started here.
Is there an option for burbles, throttle overrun popping?
Nobody is going to make measure at the crank... You'll have to guesstimate assuming +/-15% drivetrain loss. If you're looking for a dynoqueen and a "look-at-me tune" go somewhere else... JB4 has so much more to offer than that.
Nobody is going to make measure at the crank... You'll have to guesstimate assuming +/-15% drivetrain loss. If you're looking for a dynoqueen and a "look-at-me tune" go somewhere else... JB4 has so much more to offer than that.
Jon@BMS While it's still in development, think you guys could develop a reasonably priced CAI this time? Never a fan of the DCI hot-air-intake... I'll do it if I have to, but feel much better with nice cool clean air going in...
The Best of Mercedes & AMG
It will be a good idea to open a whatsapp group for the JB4 owners. Goes a long way to make a good maps together. Initially the app can be a bit confusing, especially if you want to make a custom map and stuff, so if you guys need any pointers, I would love to help. I can make one for the C63s section and share the link.
Curious how easy it is to swap the intake on/off. Would rather conduct an annual service visit with the stock boxes on just to avoid any BS from the dealer.
Also, curious about real world results with this vs a dyno with massive fans blowing. Those filters are RIGHT NEXT to the ultra hot aluminum shroud around the turbos. Obviously it is more free flowing than the OEM intake, but the stock box at least sucks in cool ambient air, while this is going to be pulling in incredibly hot air, especially from a stop.
Last edited by ezatnova; Sep 25, 2018 at 10:09 AM.
I know they saw power gains from running that configuration, but having your intake air source being the air directly around one of if not the hottest part on the car just doesn't seem all that wise.
Hopefully BMS can log some IAT, A/F, timing, etc, on OEM and their intake and compare results in road driving conditions.
They had a similar setup with the N54 and did extensive testing as there was a lot of concern for heat soak and actually showed no heat soak.
As I mentioned before, I, too, would prefer CAI, but I wouldn't be surprised if They stuck with this configuration, as I alluded to from the beginning. Knew it would be their tried and true DCI
And as stated previously, the turbos are so Damn hot it really doesn't matter what air they get as soon as it hits the turbos it will be hot as hell
Science is crazy 🙄







