L99 Rev Limiter in Neutral = DUMB! - ModernCamaro.com - 5th Generation Camaro Enthusiasts
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post #1 of 16 Old 03-04-2010, 08:32 AM Thread Starter
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L99 Rev Limiter in Neutral = DUMB!

i just had my tuner send me a new custom tune to raise the "rev limiter in neutral" to equal the rev limiter in gear.

the stock rev limiter in neutral is 4000! yeah a whole 2200 RPMs below the rev limit in gear! pretty embarrassing when you wanna rev your engine at the slow mustang next to you at the drag strip before you spank him!

mine is now set at 6200 RPM which is the same as the stock rev limit in gear!

just a heads up to you guys lookin to tune your L99s... be sure to ask your tuner to do this for you if you want!

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post #2 of 16 Old 03-04-2010, 11:01 AM
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lol.

strange. i had the same thought about rev limiting in neutral with my saturn. 4500 lmao... but i've gotten close to 7.5k on big hills in gear

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post #3 of 16 Old 03-04-2010, 11:39 AM
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I can understand why the rev limiter is set lower in neutral. Revving your engine under no load conditions is bad for the engine. They set it lower to prevent damage. Car engines were designed to be revved under load( in gear, driving). When it is freewheeling( in neutral\park) the engine can speed up too quickly, because it does not have the mass to balance and push against, causing it to vibrate violently and at the extreme break.
I would not recommend revving it up to 6000 in neutral very often.

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post #4 of 16 Old 03-04-2010, 12:48 PM
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I knew a guy who drove his parents' 95 Lincoln. Its rev limiter in neutral was like 2000 or something, lol.



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post #5 of 16 Old 03-08-2010, 05:30 AM
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Quote:
Originally Posted by Paul R View Post
I can understand why the rev limiter is set lower in neutral. Revving your engine under no load conditions is bad for the engine. They set it lower to prevent damage. Car engines were designed to be revved under load( in gear, driving). When it is freewheeling( in neutral\park) the engine can speed up too quickly, because it does not have the mass to balance and push against, causing it to vibrate violently and at the extreme break.
I would not recommend revving it up to 6000 in neutral very often.
Agreed.

Under speed, between gear changes it will rev to redline...in neutral.

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post #6 of 16 Old 03-08-2010, 06:56 AM Thread Starter
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Quote:
Originally Posted by -MD- Enforcer View Post
Agreed.

Under speed, between gear changes it will rev to redline...in neutral.
but, not the automatics

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post #7 of 16 Old 03-08-2010, 07:41 AM
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Keeps the dum dums from doing TOO much damage dropping it into drive from a full rev most likely. I'm sure someone, somewhere, has tried this by now.

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post #8 of 16 Old 03-08-2010, 07:45 AM Thread Starter
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Keeps the dum dums from doing TOO much damage dropping it into drive from a full rev most likely. I'm sure someone, somewhere, has tried this by now.
the guy that made my custom tunes said i was the first person in the 100s of tunes he's done to ask to change the rev limit in neutral... and he is the main custom tuner guy for diablosport GM programmers

i was just curious, and he said go ahead and try it, he set it just below the redline so i won't harm anything so suddenly... the 2 vehicles i've owned before the camaro i don't think have lower rev limits in neutral (98 dakota & 94 formula)

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post #9 of 16 Old 03-08-2010, 08:14 AM
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Quote:
Originally Posted by Paul R View Post
I can understand why the rev limiter is set lower in neutral. Revving your engine under no load conditions is bad for the engine. They set it lower to prevent damage. Car engines were designed to be revved under load( in gear, driving). When it is freewheeling( in neutral\park) the engine can speed up too quickly, because it does not have the mass to balance and push against, causing it to vibrate violently and at the extreme break.
I would not recommend revving it up to 6000 in neutral very often.
x2
I can't see any reason to raise the neutral rev limiter, unless it is to act like you are 18 again

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post #10 of 16 Old 03-10-2010, 07:04 PM
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Most newer GM's have lower rev limits in park and neutral than they do while in gear. As everyone else has mentioned it's more to protect the engine than anything.
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