Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Anyone gone from Stock pcm tuning to the F.A.S.T system

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Old Jul 18, 2002 | 04:11 PM
  #1  
95Bird's Avatar
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Joined: Jan 1999
Posts: 989
From: Baton Rouge, la
Post Anyone gone from Stock pcm tuning to the F.A.S.T system

I've heard that just making the switch has needed some gains of .25 and 3 mph. Anyone else experience a difference with no other change. What do you gain with the fast system over our current system with lt1 edit?

Thanks for the info guys

Tim H

------------------
95 firebird Blueprinted and ballanced 355, ported lt1 heads, custom cam motion solid roller,Moser 9" with 4.57's and a locker just to name a few.
11.23@122.25 1.579 60'

2001 NFRA LT1 NA Winner

More on www.geocities.com/herrint
Old Jul 19, 2002 | 05:54 PM
  #2  
KTamez's Avatar
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Joined: Apr 2000
Posts: 555
From: Yakima WA
Post

I honestly haven't started tuning mine yet, but heres a rundown for ya.

Wide Open throttle will almost tune itself. With the Wideband 02 (A MUST have!). In closed loop the PCM adjusts itself to the designated A/F Ratio. You still need to tune it so that the PCM isn't doing much adjustment (Within 5% or less).

-Full Datalogging of designated modules...
-On the fly tuning, No waiting while
uploading a flash
-And obviously the reason you're looking at
it, the ability to turn >7k rpm

Theres SOOOOOOO much more to the system though.

check around the ECM forum on www.turbobuick.com


------------------
Kurtis Tamez
LT4-396.com
97 Z28 LT4-396
94 Firehawk LT1-396

Team NW F-Body
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