Stock PCM limits?
02-01-2002, 08:20 AM
#1
TECH Junkie
Thread Starter
Join Date: Nov 2001
Location: Melbourne, FL
Posts: 3,987
Likes: 0
Received 0 Likes
on
0 Posts
Stock PCM limits? Anyone know for sure just how far RPM wise the stock PCM has fuel/spark tables for? I've been hearing 7500rpm, but I not 100% sure on that. It's mostly just a curiosity thing, but I do wonder how high an LS1 can rev without going with an aftermarket PCM (Motec, Holley, etc.)...
02-01-2002, 01:40 PM
#5
Re: Stock PCM limits? the shift points are based soley off of MPH, so, you could setht the shift points at any MPH you want. For example, my 1-2 shift at WOT is currently at 34 mph (I think) and for me that equates to approximatly 6400 rpm. The 2-3 shift is set for 66 mph, approx. 6300 rpm.
Ryan <img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
Ryan <img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
02-04-2002, 05:24 AM
#7
Staging Lane
Join Date: Nov 2001
Location: Illinois
Posts: 75
Likes: 0
Received 0 Likes
on
0 Posts
Re: Stock PCM limits? Wow...They give you some room to rev eh?
OBD1 LT1 tables go to like 7
And OBD2 goes to like 7200.
I hear they just keep using the values in the last table up to 7500...but that is also where the PCM stops being able to keep up. It cant sample/send signals any faster.
OBD1 LT1 tables go to like 7
And OBD2 goes to like 7200.
I hear they just keep using the values in the last table up to 7500...but that is also where the PCM stops being able to keep up. It cant sample/send signals any faster.
Trending Topics
02-05-2002, 01:47 PM
#8
TECH Veteran
iTrader: (4)
Join Date: Nov 2001
Location: Simi Valley, CA
Posts: 4,712
Likes: 0
Received 0 Likes
on
0 Posts
Re: Stock PCM limits? I don't know what the table ends at, but I'd imagine the stock PCM would just use the 7500rpm cells (if that is the right number) for any rpm over 7500.