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im a 3.1 noob. ecu,exhaust help?

MikeyEl

MikeyEl

New member
Im lookin to open up the power in my 1994 GP.
Its my daily driver so nothing too crazy. I jus want to get to work and the local mcdonalds faster :)
Its got the 4spd, srry no manual :( lol
But what simple under 4-500 bucks products would you guys recommend for exhaust, intake, ecu, etc. ?
 


i would go headers with a high flow cat,check with s-s headers and see if they have them for the 3100 engine,get that u-bend removed,very restictive,check the 3100 fourms for more info
 
Pretty sure they only make 3.4 DOHC headers...only thing you can really do on the 3.1 V6 is intake, exhaust and other small bolt ons...I myself would get on a 60* GM V6 Forum to see...
 
Manuals weren't available after the '94 interior make over. It's when the hardcore sucking of GM began. The seats, while much nicer than the '97 & up GPs, were not nearly as comfy as the AQ9 seats available in the pre-'94 style interior, the DIC was reduced to a much smaller, much more simplified version of its predecessor (no car outline), the available hood louvers were made shorter, etc.

Anyway, really the only thing I'd look into/would be worth doing is to upgrade to either a 2000 & up 3100, or any 3400 top end. Better yet, 3500 top end swap. ;) Much more involved (OBDII swap, fly by wire throttle, etc), more expensive, but it will net you much better numbers. The 3100/3400 swap will only get you another 15 - 20 horses at the crank. The 3500 will be anywhere from a 30 - 40 hp increase, depending on the year and car.

Otherwise, it's basic things like an FFP underdrive pulley and motor mounts (which you'll have to find used, since they no longer make them), exhaust, etc. Headers aren't available for the 60° V6s, and due to them being an OBD 1.5, you can't even get a chip for the '94 - '95 GPs.

BTW, if you don't have it already, every '94 - '96 GP came prewired for HUD and DIC, though the DIC MUST be out of either a '94, or a '95 (again, on account of them being OBD 1.5).
 
How much do you think a swap for a 3.4 be? Also do you think a 3.6 or 3.8 with the stock supercharger would fit?
 
A 3.8 won't work. Totally different motors, yours being a 60° engine, and the 3.8L being a 90°. A 3400 swap shouldn't cost much at all, considering a whole low mileage motor could be had for maybe $300 at the most. They're a dime a dozen, and available in an abundance of cars.
 


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