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DrDave's 1970 Trans Am

2018 May
of the Month

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gandhi_2006

Gandhi's New Car!!!

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Well I finally found a new ride, and it was between a GTP and an SSEi. I decided to go with a GTP.



It Is a 2004 GP GTP Comp G. I love everything about this car, even stock is freakin sweet. But I dont know if i care for the way she shifts, maybe just not used it.



My plans are to insall a CAI, Colder Thermostat, Colder Spark Plugs, and a 65mm Throtle Body. I kind of like the exhaust factory, but if anyone has any suggestions, I am always open to hearing them. I would like to paint the front motor mounts, the support bars, the heat wrap, plug wires, and cold air tube green possibly. I would also like to repaint the calipers green, but not sure yet on the color.



So to begin my prog thread here are a few Stock pics, enjoy, and please give ideas, shes a clean slate.



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Nice, congrats! How many miles on her?


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One owner, who was not a gear head,so took it to mechanic for everything and never beat on it. Only had 60000 miles at purchase.

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nice! only 60k? cool. jus need an engine bay cleaning.


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congrats the the purchase, i reccomend getting headers and forget about the throttlebody, dont do colder plugs until you have a smaller supercharger pulley


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I was planning on smaller pully. Any recommendations on size, i was thinking 3.4.

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You need new headlights. Those are all fogged up.

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Yep leds with halos

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Ew...Please do not do that. Just black housing lights.

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I was planning on smaller pully. Any recommendations on size, i was thinking 3.4.

a 3.4 will require valvetrain mods and headers to be run safely, once you get headers you can possibly drop to a 3.6 aslong as you have a scangauge and a tune.

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Ok so just so you know i was kidding about the lights! Ha ha. I would like to do a new exhaust with headers, but i cant seem to find any that work with my model. Ive looked on 3800performance, horsepowerfreaks, and carid. It will be a while before i put new exhaust on anyway. So if that's the case what size pully can i put on without having to mess with the pcm?

the most i would do is tint the lights i have now after i clean them, i like the lights that are on it.

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Ok so just so you know i was kidding about the lights! Ha ha. I would like to do a new exhaust with headers, but i cant seem to find any that work with my model. Ive looked on 3800performance, horsepowerfreaks, and carid. It will be a while before i put new exhaust on anyway. So if that's the case what size pully can i put on without having to mess with the pcm?

the most i would do is tint the lights i have now after i clean them, i like the lights that are on it.

All Headers for 97-03 grand prix will work on 04+, i reccomend Speed daddy off ebay ( usually can get them for 200 shipped), With any pulley drop i recommend a tune because since your adding boost you need to let the computer know about it, Also These cars require 91+ octane Stock and running 87-89 will blow them up ( most people dont know this), Good sites for aftermarket parts for these cars are ZZPerformance, Intense racing

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Sweet thanks i will check the sites out. Btw i was wanting to get it dyno tuned soon so i guess that would work fine then.

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Sweet thanks i will check the sites out. Btw i was wanting to get it dyno tuned soon so i guess that would work fine then.

A dyno tune would be your best bet, but make sure they know 3800's, if you got anymore questions lmk, if you want to get a little bit of performance and be able to hear the supercharger whine, Then remove your airbox and but a cone filter on the end of the stock tubing, cold air intakes dont do much for these cars because the blower will heat the air anyway

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Your paint is looking like mine. I'm about to do a correction on my paint to give it that factory shine again and get rid of those swirls. Thinking it might be a good idea for you to look into it as well.


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Ok so here is what i bought so far. 3.4 pulley, gatorback supercharger belt, nkg plugs(one temp colder) mds street fire wires, 180* thermstat, and soon a CAI.

i cant seem to find any headers for her yet, and i have found a dynotune shop in mn called MAPerformance.

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Also i did pm 95nasta but he must be busy, does any one know what kind of paint he used on his trans.

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i believe it was Duplicolor, metalcast.


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Thanks ghost he did pm me last night.

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Ok so here is what i bought so far. 3.4 pulley, gatorback supercharger belt, nkg plugs(one temp colder) mds street fire wires, 180* thermstat, and soon a CAI.

i cant seem to find any headers for her yet, and i have found a dynotune shop in mn called MAPerformance.

I very highly recommend getting that pulley exchanged for a 3.6 unless you feel like replacing your motor, also dont touch the pulley until headers. other wise you will be looking or a new short block

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Thanks for the link Dalton, hell even the price they are asking for is a good deal, and because i don't know and would like to what would really make the diff between a 3.4 and a 3.6 pulley on the engine. Why would .2 make that big of a prob on it?

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Thanks for the link Dalton, hell even the price they are asking for is a good deal, and because i don't know and would like to what would really make the diff between a 3.4 and a 3.6 pulley on the engine. Why would .2 make that big of a prob on it?

that .2 is around 2-3 more psi, On my generation of 3.8s/c that would be fine with just headers and a intake and tune, but you have a bigger blower a 3.6 = a 3.4" on my engine, a 3.4 on yours = a 3.2 on mine, for a 3.2 to run safely you need valvetrain work or a intercooler, you need flow mods to get the air out of the engine before cramming more air in, if you were to put that 3.4 on your car without a IC or valvetrain mods, you would chip a few pistons. Headers alone will net you 10-15whp

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Ok i will return 3.4 and get 3.8 and the headers.

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Ok tuner pros, when i go to get my pcm tuned after i put the mods on, what do you guys suggest i have them do. I would like to raise my rev and speed limiters up a little, and tighten my transmissions shifting. Anything else specifically?

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