PCM limited to 8k how?
#1
PCM limited to 8k how?
Im using a 98 fbod pcm in my carbed LS2 and im wondering what method GM uses to limit rpm to 8000 rpm? The lower rev limits are fuel cut, but what about 8k limit? Ignition kill?
#2
The PCM doesn't have calibration options BEYOND this RPM. Its the limit of the stock PCM according to the stock tune calibration. There are no more fields beyond this rpm...no data to reference...no worky!
#3
Im not trying to turn past 8k, im asking how pcm disables 8k and up rpm?
#4
Rev limiter cuts fuel. Fuel is then turned back on at an rpm you choose which is typically -100rpm below the cut limit. i.e. cut @ 6,500rpm, back on @ 6,400rpm.
Hp Tuners Example:
VCM Editor> Engine > Fuel > Cutoff, DFCO > Fuel Cutoff > RPM Limit. (Max available in stock tunes is usually 12,800rpm) BUT again there are no other supporting tuning tables past 8,000rpm.
Hp Tuners Example:
VCM Editor> Engine > Fuel > Cutoff, DFCO > Fuel Cutoff > RPM Limit. (Max available in stock tunes is usually 12,800rpm) BUT again there are no other supporting tuning tables past 8,000rpm.
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Rev limiter cuts fuel. Fuel is then turned back on at an rpm you choose which is typically -100rpm below the cut limit. i.e. cut @ 6,500rpm, back on @ 6,400rpm.
Hp Tuners Example:
VCM Editor> Engine > Fuel > Cutoff, DFCO > Fuel Cutoff > RPM Limit. (Max available in stock tunes is usually 12,800rpm) BUT again there are no other supporting tuning tables past 8,000rpm.
Hp Tuners Example:
VCM Editor> Engine > Fuel > Cutoff, DFCO > Fuel Cutoff > RPM Limit. (Max available in stock tunes is usually 12,800rpm) BUT again there are no other supporting tuning tables past 8,000rpm.
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#8
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^ exactly. How far is the res on the newer pcm's? the...is it green and blue connnectors? i cant remem the numbers. haha
I can tell you mines seen 8200 more than a few times..of course, it also blew up eventually haha
I can tell you mines seen 8200 more than a few times..of course, it also blew up eventually haha