Performance PCM on stock gt

[raverockstar]

Does it do any difference?
Can it harm the engine?

Btw what's does it mean shift points 5800-6000?

Here's the features from 3800performance.com

FEATURES:
- Speed limiter removed
- 3-1 and 4-2 skip shifts
- Transmission line pressure increased
- Shift points moved (5800-6000rpms)
- Fan turn on points altered:
- 186 degree turn on
- 2 minute fan on at key-off (this feature activates when engine coolant is 179 degrees or greater)
- MAF calibration adjusted for proper operation and year
- Fuel/spark adjustments:
- En-richens fuel delivery for critical problem areas
- Provides a consistent power gain across the entire power band
- Reduces spark retard (knock retard)
- Removes “40MPH WOT lag”
- Dynamometer testing has shown approximately 8-12HP in 60 degree temperatures on a development vehicle using 93 octane fuel.

[BillBoost37]

Yes and yes..

Did you do that coolant flush yet?

[raverockstar]

Lol hahahahaha not yet. Hahaha
I'm moving apartment so I have so much stuff to do.
Thanks for reminding me haha.

And I'm asking here cause 3800performance emailed me it won't do any harm to the engine after asking them the same question.
(I trust u guys better)

How these features are harmful
Does it worth the hp?

[BillBoost37]

Higher trans shifting keeps the engine rpm up longer. We have known oiling deficiencies. Stock motors don't rev fast, and don't like holding high rpm for a long time. Loosening up the TM in the trans settings makes it easier to tear up the trans.

Will it overall hurt your car, likely not. Will you like the feel, most likely.

You can't get this until that coolant flush is done. I'll rename you, dog you, and remind you until it's done.

[raverockstar]

Higher trans shifting keeps the engine rpm up longer. We have known oiling deficiencies. Stock motors don't rev fast, and don't like holding high rpm for a long time. Loosening up the TM in the trans settings makes it easier to tear up the trans.

Will it overall hurt your car, likely not. Will you like the feel, most likely.

You can't get this until that coolant flush is done. I'll rename you, dog you, and remind you until it's done.

Haha
You make me laugh all the time with that coolant flush.

Anyway about the PCM. Il try to ask them to take down the rpm cz it's really high.

[02NavyBlue]

Are you positive that this stuff will clump with green coolant like the original dex-cool does? I could mix them in a cup and see what happens, if that's even a valid experiment.

[raverockstar]

Are you positive that this stuff will clump with green coolant like the original dex-cool does? I could mix them in a cup and see what happens, if that's even a valid experiment.

Save ur time. Today I checked my coolant and I saw something like mud on my rad cap. That's the sludge

[locuno1]

you should follow this then add a pcm

http://www.grandprixforums.net/safel...0-a-67580.html

[02NavyBlue]

Well, flush asap. Maintenance before mods.