Megasquirt on 99 Grand Prix GTP

This is a MS-I v2.2 pcb running an L67 (buick 3800 series-II supercharged) in my Grand Prix. The C3I ignition and stock ecu are still fully in control of timing. Presently it's running in speed density mode (MAP sensor based tune). (First start)

Feel free to contact me if you need wiring diagrams or tuning info.

Category:

Autos & Vehicles

Tags:

• Megasquirt
• grand prix
• gtp
• l67
• 3800 series
• supercharged
• fiero
• regal
• impala
• m90
• blown
• turbo

[blah1752]

Finally, a Grand Prix guy that really is making his car fast. I've seen too many owners with stock cars bragging on them. Good work sir.

[curadomovies]

@blah1752 Also doing a 6 speed swap. Almost done =)

[blah1752]

@curadomovies ?!!!! Your my hero! Any advice for modifying my L36 or swapping an L67 into a LeSabre?

[curadomovies]

@blah1752 Hmm. Frankly, depends on budget. Your best bang for your buck is definitely turbo. Find a used kit this winter when they typically go on sale on the forums. Your car will still be worth something if you demod/sell it later. Just don't turn up the boost so high that you wind up cracking a piston.

[bonggged]

No need for maf in SD mode lol.

You doing VE tuning?

I dont bother VE tune in these cars sice they dont normally use those charts.

[curadomovies]

I like the original ECU better so I'm pretty much sticking with maf tuning.

[CanFire9]

Looking forward to the next video!

[curadomovies]

Update: Wideband is hooked up and the car is very tunable. Pulls good on the highway :D

[curadomovies]

The wideband O2 and temp sensors are NOT hooked up yet. This is the first start. I would have revved it more but the neighbors probably wanted to sleep being that it was 1 am.