View Full Version : Recommendations for LT1 PCM custom programming
Samckitt
06-24-2009, 10:31 AM
Who do you recommend or who to stay away from? I don't know of anyplace close to my home (just north of Indianapolis, IN) that does chassis style tuning, so would probably be a mail order type of programming.
Anyone use Trifecta performance, http://www.trifectaperformance.com/?
130fe
06-24-2009, 02:14 PM
These guys are great: http://www.pcmforless.com/. Quick turnaround and great customer service!
69LT1Nova
06-24-2009, 02:36 PM
^^^ x2, Bryan did mine. Worked the first time. :)
Samckitt
06-24-2009, 03:15 PM
^^^ x2, Bryan did mine. Worked the first time. :)
What mods have you done to your LT1?
130fe
06-24-2009, 03:47 PM
I originally had a hotcam/no emissions/MAF tune. I then changed to a speed density tune (same mods) and it was great. I had the first tune done in 02 and this latest version in 06. Both times the engine started and ran great.
The price is better than most and customer service is great.
Samckitt
06-24-2009, 04:13 PM
Dumb question: Why change to speed/density setup? I thought the MAF setup worked better.
Check with Speed Inc Scot. They were doing LT1 tunes not that long ago. Actually, one of their guys build a monster 383 LT1 TA recently. They should be able to do it for you.
Samckitt
06-24-2009, 07:02 PM
Check with Speed Inc Scot. They were doing LT1 tunes not that long ago. Actually, one of their guys build a monster 383 LT1 TA recently. They should be able to do it for you.
I asked if they can help & their reply was "sorry we can no longer program OBD 1 vehicles". I am waiting on a reply from PCM for less.
130fe
06-24-2009, 08:16 PM
Dumb question: Why change to speed/density setup? I thought the MAF setup worked better.
I was trying to "clean" the front of the motor up (I had the standard F body 90 elbow with a filter). That was then, if I had it to do over I wouldn't. Not that SD is bad, but taking Hot air (IAT 150) directly into the intake will hurt performance. That is why.
69LT1Nova
06-25-2009, 08:35 AM
What mods have you done to your LT1?
Not a whole ton. Cam is the stock cam (I know, I know...). I have a bunch of bolt-ons. Cold air, headers, throttle body coolant bypass, smog delete, 3.42 gears, etc.
Big thing with PCMforless is that they have done a million different LT1 combinations, and more than likely have already done a combination close to yours.
Ollie8974
06-26-2009, 04:17 AM
If You want to do it yourself, check out thirdgen.org
http://www.thirdgen.org/techboard/
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