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View Full Version : Best cam for a 91 GTA Trans Am


NVMYGTA
03-09-2004, 02:59 PM
Ok.. let me list the mods that are done to the car and see if you guys can tell me what would be the best cam to buy for it. SLP mid-length headers, cold air intake, custom exhaust, custom chip, udner drive pulleys, 160* t-stat, some more goodies and a 150 shot of nitrous. It has stock gears, stock converter and all that stuff. Im looking for a strong cam that will hold nicely with the setup I have and give me a very noticable difference. Let me know what you guys think. I have been looking at the ZZ-409 cam from TPIS and I have gotten some good feedback on it but I want to see what you guys think.

MdFormula350
03-09-2004, 07:14 PM
http://www.thirdgen.org/techbb2/showthread.php?s=&threadid=215858&highlight=L98+nitrous+cam

http://www.thirdgen.org/techbb2/showthread.php?s=&threadid=47179&highlight=L98+nitrous+cam

http://www.thirdgen.org/techbb2/showthread.php?s=&threadid=36687&highlight=L98+nitrous+cam

some other good info on there run a search some more opinions, etc...

hardcoresoldier
03-13-2004, 12:08 AM
the tpis zz-409 cam is an excellent cam,but do you have a 5.0 or 5.7? it is too large of a cam for a 5.0 and is on the large side for a 5.7.but will work rather well.i have a 383 with their zz-9x and miniram with fast burn heads and it makes 520 hp.

chris89gta
03-18-2004, 07:12 AM
I wouldn't run a single pattern cam is you plan on spraying that motor w/ a 150 shot. It needs at least a 6* split to really work out. I say either a 224/236 if you have the intake mods to support it, or the 218/230 for N20. If you only spray it at the track the 224/230 will be really nice in that car.

NVMYGTA
03-21-2004, 09:49 PM
i have a chance to get a zz-9x cam for CHEAP. will it run right with my car? i have a 5.7 btw.

TPIS ZZ9 cam - 212/226 @.050 483/520 lift on 112

what ya think?

Cashmunson
03-22-2004, 07:40 AM
you should buy the zz4 cam i have for sale :D

zz4 cam specs:
10185071 208/221 .474/.510 .510/.544 112deg

zz9 cam specs:
700-136 212/226 .483/.520 .515/.554 112deg


only used for about 7k-8k miles. 150 bucks