Stock PCM limits
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TECH Regular
Joined: Nov 2002
Posts: 408
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From: Houston TX (Chicago/Evanston IL)
Stock PCM limits What are the LS1 "01" PCM's rwhp/rwtq tunable levels.Why does 650 HPseem to be the limit? Some cars with biger motors and more radical cams make less peak HP than a smaller ect?? I am having my car dyno tuned and should be hitting these limits. Are there any oiptions besides a stand alone PCM?
Re: Stock PCM limits If you have a savy tuner, I don't think there are any real HP/Trq limits with the stock PCM. The only real limit that I don't know of anyone surpassing is the 8000 rpm limiter.
JMO
JMO
Re: Stock PCM limits The problem with putting in 640 or higher is the value will wrap around actually giving you a lower torque value. Here's a direct quote from Ken Kelly of LS1edit:
"The PCM treats torque as a signed number. Numbers over 639 set the most
significant bit. When the actual stored value gets the most significant
bit set, it is treated as a negative value.
Ken"
"The PCM treats torque as a signed number. Numbers over 639 set the most
significant bit. When the actual stored value gets the most significant
bit set, it is treated as a negative value.
Ken"
