RPM Limiter

Thomv

Petty Officer 1st Class
Joined
Feb 26, 2005
Messages
244
Can someone tell me if my 1999 7.4 MPI engine has an RPM limiter and if so, what would it be set at?
Thanks
 

UncleWillie

Captain
Joined
Oct 18, 2011
Messages
3,995
Re: RPM Limiter

Just a guess based on how they usually operate;

The RPM Limit is usually a few hundred RPMs above the point the engine develops maximum horsepower.
Typically a 5000-5200 rpm limit.
There is nothing to be gained in going any faster.

The limit is built into the engine computer.
Beside Red Lining, a second part of the issue is the speed of the computer trying to keep track of when to fire the next cylinder.
 
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