How to "chip" a C5?
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
there is an inline device that plugs into the wiring harness leading to the PCM - but I think it has ZERO adjustabiity.
I'd avoid the Hypertech on a C5. Since you've shown interest in a handheld device; look at the Diablosport Predator.
I'd avoid the Hypertech on a C5. Since you've shown interest in a handheld device; look at the Diablosport Predator.
Safety Car
Joined: Dec 2003
Posts: 3,626
Likes: 1
From: Fremont California
Originally Posted by mdhmi
No chip. The C5 uses a PCM which can be programmed with a hand-held tuner (Hypertech/Predator/etc) or better yet custom tuned (on a dyno with a W02) using LS1-Edit or HPTuners. 
Mark
Mark
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Instructor
Joined: Aug 2001
Posts: 192
Likes: 0
From: Virginia Chesapeak
Originally Posted by skip89
Seems like the experience here on the Forum points to a good tune on a dyno by an experienced tuner. I would do more research before you spend hundreds on a hand held. Anyone else ??
Le Mans Master
Joined: Nov 2000
Posts: 6,266
Likes: 156
From: Galloway Twp. NJ
Cruise-In VII Veteran
the C5's tune the same way that your '96 CE would get tuned. it just uses different software. 
looking at your current mods, you have a K&N filter, LT headers, and high flow cats.
you should have tuned the computer in your '96 for these mods.
if you didn't, there is more power to be gained from your setup.
I have a blackwing air filter, and a GMS MAF. I tuned my setup using a MAF translator and autotap.
as of the last dyno session I'm running 2% lean and making 324Hp and 334ft-lbs/Tq at the rear wheels.
looking at your current mods, you have a K&N filter, LT headers, and high flow cats.
you should have tuned the computer in your '96 for these mods.
if you didn't, there is more power to be gained from your setup.
I have a blackwing air filter, and a GMS MAF. I tuned my setup using a MAF translator and autotap.
as of the last dyno session I'm running 2% lean and making 324Hp and 334ft-lbs/Tq at the rear wheels.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Seems like the experience here on the Forum points to a good tune on a dyno by an experienced tuner. I would do more research before you spend hundreds on a hand held. Anyone else ??
But there's more to having ones own programmer than just AFR. And a tuner probably won't get the (A4) shifting, line pressures, fan temps exactly like you want it the first time.
