How to raise the Rev limiter
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Joined: Dec 1999
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From: Venetia,Pa,USA
How to raise the Rev limiter
First what is the stock rev limiter set for in a stock 92 LT1? How high can it be raised safetly without blowing apart the engine? Also has any disconnected their rev limiter or raised the limit?
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Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: How to raise the Rev limiter (The Bus)
The fuel cutoff is set in the computer, its not wise to set it higher unless you have stronger springs because youll get valve float before you blow apart the bottom.
What most people do is buy a MSD box and set its limiter, since its a true limiter and not a cutoff.
someone else will know where exactly yours is set
What most people do is buy a MSD box and set its limiter, since its a true limiter and not a cutoff.
someone else will know where exactly yours is set
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Joined: Dec 1999
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From: Lacey WA RVN 68-69
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Re: How to raise the Rev limiter (The Bus)
The ECM controls the RPM limit and I believe it is somewhare around 5850RPM. You will need a chip to change the cutoff limit.
The point about overreving and potentially damaging the valvetrain is a good one. If you do raise the cutoff RPM, make sure the valvetrain can handle it. Good HD springs, retainers, keepers and roller rockers should be installed, especially if you have lots of mile on the motor. Dropping a valve can really ruin your day!
The point about overreving and potentially damaging the valvetrain is a good one. If you do raise the cutoff RPM, make sure the valvetrain can handle it. Good HD springs, retainers, keepers and roller rockers should be installed, especially if you have lots of mile on the motor. Dropping a valve can really ruin your day!
