Need a new chip for a 350/285hp using a 305 TPI set up. Any ideas would be appreciated.

 

Burn your own, so later you can change things as you mod further

 

DITTO!


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1986 Trans AM
305 TPI
4 Wheel Discs
9 bolt Borg Warner Rear
Completely Stock
Soon to upgrade to a 383 stroker w/TPI, Hedman Shorty Headers, 64cc Pocket Ported Worlds Product Sportsman-II heads, ported intake, comp cam, TPIS air foil, Adjustable Fuel Pressure Regulator, and 24 lb/hr SVO injectors!
Current project: Keeping my car running until I get the money for the above mentioned project! :-)

 

DITTO the above!! However, if you don't want to learn how to burn your own chip, check out http://www.fastchip.com .....at the cost of $350 you can have a custom chip burned to your exact mods....and he'll even work with you if any adjustments need to be made! Ed Wright is the man!!


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1986 Trans AM
305 TPI
4 Wheel Discs
9 bolt Borg Warner Rear
Completely Stock
Soon to upgrade to a 383 stroker w/TPI, Hedman Shorty Headers, 64cc Pocket Ported Worlds Product Sportsman-II heads, ported intake, comp cam, TPIS air foil, Adjustable Fuel Pressure Regulator, and 24 lb/hr SVO injectors!
Current project: Keeping my car running until I get the money for the above mentioned project! :-)

 

Z28DJP,

I agree with burning your own as opposed to buying a custom EPROM. However, let us know what you have,, like year model TPI/computer, gear ratio, and size injectors, and there may be a GM chip that could work as a get by for $40.

 

badss
1987 iroc with stock 305 tpi auto being swapped to a 350/285hp engine and i need a chip for the 19# injectors. And no I can not burn a chip. I need options. thanks

 

DJP,,, since it’s a MAF car,, I’d think that the 87’s 305 chip would work on your 350 since you’ve retained the stock 19# injectors (305 chip has an injector constant for the 19# injectors). However, I’m sure you’ll need to bump the fuel pressure up on the AFPR,, and maybe play around with the TPS to help with the added cubes (reset the IAC also). If all else fails and the 305 injectors don’t work out for you, your cheapest way to out would be change to the 350’s 22# injectors and get a 1988 350 chip from GM. The 1988 350 “chip” has the latest revisions for MAF w/cold start injector, plus it has an injector constant for the 22# injectors. There’s a listing of stock EPROMs in the FAQ section. Understand a GM 350 chip with the 305’s 19# injectors would reduce your fuel flow more than the 305 chip would. They’re designed to run in combination with the appropriate injector.

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86 IROC - 9.8:1 - 355, TFS twisted wedge heads, 218/228-110, fully ported GM base and plenum, SLP runners, 52mm BBK, 24# SVO, 88 350 GM EPROM, 1 5/8" Headman headers, 2.5" Dynomax, TH350, 2200 stall, B&M Megashifter, 3.23 peg leg, 245/45ZR17 on 212 Eagles - Best run - 12.53/112.4 on 26x11.5 ET Streets.

 

Badss
Thanks for the info on the TPI setup and chip.