Hitting Rev Limiter

AtomHeart · 11-16-2007, 12:22 PM

Hi guys,

I wanted to check to see of any of you SLK32 guys are having the same issue I am. Under hard, wide open throttle accelerations, just before the car shifts from 1st gear into 2nd gear, I hit the rev limiter, and the car practically stands on its nose. It then shifts into 2nd gear and resumes the hard acceleration as if nothing had happened.

First of all, is this normal? I expected that in an automatic transmission car, there was no physical way to ever hit the rev limiter.

Secondly, since the rev limiter is a fuel cutoff type system, isn't that creating a lean condition in the engine right when I'm at maximum RPM (the worst possible time)? Is there a way to solve this issue? Can an aftermarket ECU tune fix this by moving the rev limiter or shift point at wide open throttle?

Eric

1FASTC32 · 11-16-2007, 12:56 PM

Yes, an aftermarket tune will fix this problem, you can get in on the special have right now for tuning...

please let me know if you have any questions...thanks!

http://forums.mbworld.org/forums/sho...d.php?t=218467

11-16-2007, 12:22 PM	#1
AtomHeart Newbie Join Date: Oct 2007 Location: Denver, CO Posts: 5	Hitting Rev Limiter Hi guys, I wanted to check to see of any of you SLK32 guys are having the same issue I am. Under hard, wide open throttle accelerations, just before the car shifts from 1st gear into 2nd gear, I hit the rev limiter, and the car practically stands on its nose. It then shifts into 2nd gear and resumes the hard acceleration as if nothing had happened. First of all, is this normal? I expected that in an automatic transmission car, there was no physical way to ever hit the rev limiter. Secondly, since the rev limiter is a fuel cutoff type system, isn't that creating a lean condition in the engine right when I'm at maximum RPM (the worst possible time)? Is there a way to solve this issue? Can an aftermarket ECU tune fix this by moving the rev limiter or shift point at wide open throttle? Eric

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11-16-2007, 12:56 PM	#2
1FASTC32 MBWorld Fanatic & SPONSOR Join Date: Mar 2006 Posts: 2,476	Yes, an aftermarket tune will fix this problem, you can get in on the special have right now for tuning... please let me know if you have any questions...thanks! http://forums.mbworld.org/forums/sho...d.php?t=218467