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These cars are incredible and I’ve been blessed with having mine for almost a year; ‘bout 30k (highway) miles put on. Yikes.
Aligned with this video I’ve published: I’m trying to decide between going with the JB4 setup or perhaps just starting out on this car with Dinan. I used RaceChip in the past on my last two Merc’s.
What do y’all think and has anyone used all three of these with some good contrasting words to run my way? Thanks!!
I didn’t watch ur vid, sorry
If u said what kind of results u wanted from your tune then my bad, if not I guess it really depends on what ur looking to get out of your tune.
I have a ‘20 sedan with jb4 and have gotten good improvements (IMO)on my dragy times!
These cars stock are impressive, just based on my butt dyno
full tune from what I’ve heard will give more of a balanced improvement ( not just more boost)
but have no personal experience there
I’ve gotten good response time from BMS when trying to adjust jb4 settings to resolve any issues
No worries, thanks for your response! Your feedback is basically what I was hoping for. Do you have the delta on times between stock versus tuned with JB4 and did you have to do anything to your CPC at all? I’m getting ready to add that thing to the cart lol. Thanks again 🤙
Originally Posted by MaverickC43
I didn’t watch ur vid, sorry
If u said what kind of results u wanted from your tune then my bad, if not I guess it really depends on what ur looking to get out of your tune.
I have a ‘20 sedan with jb4 and have gotten good improvements (IMO)on my dragy times!
These cars stock are impressive, just based on my butt dyno
full tune from what I’ve heard will give more of a balanced improvement ( not just more boost)
but have no personal experience there
I’ve gotten good response time from BMS when trying to adjust jb4 settings to resolve any issues
I did issues with limp mode, but just needed to adjust my “fuel loop” I think is what it was
but terry was good about helping me with looking at logs and making adjustments
Off the top of head
0-60 stock vs jb4
4.01 to 3.58
1/4 mile
12.22 to 11.71
I got my 60-130 under 10 sec
I have the logos intake but no other mods or tuning
Just wondering, how did you launch when you did these runs? I recently took off a JB4 but never had a reliable way of testing differences aside from the good ol' butt dyno.
Brake boost (maybe 2 sec) just to build up boost on guage
Individual mode ( sport plus with trans on comfort basically) with trac all the way off for 0-60
Running mich ps4s tires
it took practice to get good launches
and I had launches that all FELT great but would end up being .2-.4 sec diff.
Unless u actually have a private track
there are so many outside variables that can effect times
I just kinda wanted to see how low I could my times, but mostly bc of the “caveman” in me I guess
im not winning prizes. lol
Brake boost (maybe 2 sec) just to build up boost on guage
Individual mode ( sport plus with trans on comfort basically) with trac all the way off for 0-60
Running mich ps4s tires
it took practice to get good launches
and I had launches that all FELT great but would end up being .2-.4 sec diff.
Unless u actually have a private track
there are so many outside variables that can effect times
I just kinda wanted to see how low I could my times, but mostly bc of the “caveman” in me I guess
im not winning prizes. lol
Oh yeah, I imagine. Roads around me are pretty rough so I don't find myself wanting to launch all that often, but in the cases that I do, I'll keep this in mind! I appreciate the tips
These cars are incredible and I’ve been blessed with having mine for almost a year; ‘bout 30k (highway) miles put on. Yikes.
Aligned with this video I’ve published: I’m trying to decide between going with the JB4 setup or perhaps just starting out on this car with Dinan. I used RaceChip in the past on my last two Merc’s.
What do y’all think and has anyone used all three of these with some good contrasting words to run my way? Thanks!!
Here’s the vid: So This AMG C43 *Needs* A Tune?
MY20 C43 Mods: MST V2 Intake RennTech EVM
The best tune & most reliable in my opinion for the C450/C43 is the AMR RV3.1.
I started with stage 1 tune & BMS intakes and hit a 11.9@117 with crappy launch.
I went stage 2 the following year and added logos intakes, intercooler, logos downpipes and went 11.4@120.
On these cars without boost off the line they are SLOW
I assume you are with c450 with 7g gearbox so if this same setup applied to c43 i think should hit better times with 9g
I have BMS intake, downpipes and ecu tune and hit
0-100kmh - 3.69s
0-60mph - 3.51s
100-200kmh - 8.95s
60-130mph - 10.54s
1/4 - 11.64s @ 189.43kmh/117.7mph and the slope was 1.29 which I assume should hit maybe 11.4s on neutral slope
Also i didn't have any TCU stage and the tune is local tuner in Europe
I was thinking if I should try AMR 3.1 to check the diff with my tune but have to pay 1.5k and that's why for now i don't want to pull the trigger
Last edited by KristiyanPetrov; Jan 20, 2024 at 02:52 PM.
I assume you are with c450 with 7g gearbox so if this same setup applied to c43 i think should hit better times with 9g
I have BMS intake, downpipes and ecu tune and hit
0-100kmh - 3.69s
100-200kmh - 8.95s
1/4 - 11.64s @ 189.43kmh/117.7miles and the slope was 1.29 which I assume should hit maybe 11.4s on neutral slope
Also i didn't have any TCU stage and the tune is local tuner in Europe
I was thinking if I should try AMR 3.1 to check the diff with my tune but have to pay 1.5k and that's why for now i don't want to pull the trigger
Correct I have 7g trans and i have to disagree with getting a better time with the 9g as 2 extra gears means 2 extra speed shifts by the computer. I think this car has a 11.2-. 11.3 in the 1/4mile before it taps out but got an Audi RS3 and I lost interest in this platform lol.
With the 9g trans in the c43 i would def get the TCU tune. On my 7g, i couldn't tell a difference and wouldn't recommend it.
Correct I have 7g trans and i have to disagree with getting a better time with the 9g as 2 extra gears means 2 extra speed shifts by the computer. ...
Well, not really. You'd need to look at the shift-point speed in each gear to see the top gear you'd be in at the end of the measured speed run.
E.G., using https://www.automobile-catalog.com to look up a 2016 7-speed C450 vs a 2017 9-speed C43, from the "Speed range:" chart you see that at the end of a 1/4 mi. run you'd be in 4th gear with the 7-speed C450 and in 5th gear with the 9-speed C43.
OK, so there's an extra shift with the C43 9-speed ... BUT there's also "shorter" gears with the 9-speed which leads to better acceleration for the 9-speed C43. Like so many things with automotive performance, it's not as simple as things would first appear.
Correct I have 7g trans and i have to disagree with getting a better time with the 9g as 2 extra gears means 2 extra speed shifts by the computer. I think this car has a 11.2-. 11.3 in the 1/4mile before it taps out but got an Audi RS3 and I lost interest in this platform lol.
With the 9g trans in the c43 i would def get the TCU tune. On my 7g, i couldn't tell a difference and wouldn't recommend it.
Hmm i disagree with that 9g will be slower because shorter gear will push quick from my experience, because longer the gear more power needs to run it and to give better times from shorter gears
But either when i compare my times with your ones are so close (i update my prev post with 0-60/60-130mph times as they're different with what we measure in Europe 0-100kmh 100-200kmh)
Hmm i disagree with that 9g will be slower because shorter gear will push quick from my experience, because longer the gear more power needs to run it and to give better times from shorter gears
But either when i compare my times with your ones are so close (i update my prev post with 0-60/60-130mph times as they're different with what we measure in Europe 0-100kmh 100-200kmh)
Mind you, I am still on 91 pump tune. no 93 pump gas here unfortunately. All i can say is goodluck with your build and hope you can go low 11's.
Ill try again in the spring and hunt a low 11 pass now that I got rid of the crappy all season tires.
Mind you, I am still on 91 pump tune. no 93 pump gas here unfortunately. All i can say is goodluck with your build and hope you can go low 11's.
Ill try again in the spring and hunt a low 11 pass now that I got rid of the crappy all season tires.
oo okay you run on 91 which in Europe is 95 RON and i run my car on 100 RON, so if you run same fuel as mine you should do better for sure
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