I just bought a 1987 Trans Am GTA with a 350 5.7 TPI engine. I was wondering what the best performance chip would be for it and where I can get it..
thanks a lot.

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Personally, I believe in burning my own. But if you are not inclined to get into burning your own eprom, go to Ed Wright at Fastchips.

I have seen a lot of the actual code (BIN files) for almost all of the "off-the-shelf" eproms and frankly, they do very little. A little extra spark at the lower midrange of the high load area, possibly increase the locking speed of the TC a few mph higher and alter the temperature that the fans kick it. That's basically it.

However, Ed Wright actually makes a lot of changes and does quite a good job for a "formula" eprom. At least he gives you what you think you are paying for.

But I am still in favor of burning it yourself. It seems intimidating, but it really isn't. Just a bit of a learning curve and then experimentation, practice and a little patience. Then you can do anything.

 

try hypertech at www.hypertech-inc.com

 

I am very happy with my Performance Resource chip. With the cal-pac, it cost me about $200 and took a good .3 off my 1/4 ET, only other mods at the time being headers and cat-back. Visit their site,

www.performanceresource.com

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 Hot Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

7.5" 10 Bolt with 3.42s soon to come!

 

I second Glenn's recommendation. Off the shelf chips like hypertech or jet do very little for what you're paying them.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

I got a hypertech. IMproved my 1/8th mile time very little if at all. But I believe it helped my car a lot in its driveability and its consisitency on the drag strip. Before installing I would run anywhere from 9.1s to 9.9s in the 1/8th. SInce installing my worst time has been 9.22. The K&N air filter could have been the difference though. I paid 180 bucks for the chip. My car is consisitent now, but it still cost a 180. Maybe it could have been spent on something else.

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Gunmetal 89GTA T-Tops L98
Gettin there's all the fun
Best 60 ft: 1.996'
Best 1/8th mile: 9.02 @ 76.5mph with 60' time of 2.14
Mods: air filter, hypertech chip, 3" exhaust