#116149 - 07/31/06 06:56 PM
2002 Grand Prix Gt
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Junior Member
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Registered: 07/30/06
Posts: 5
Loc: Kenosha Wi
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I am looking to upgrade my stock grand prix gt. I want to get the hp up over atleast 300 hp. What would be the best mods for the money?
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#116150 - 07/31/06 07:01 PM
Re: 2002 Grand Prix Gt
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Member
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Registered: 04/18/05
Posts: 8901
Loc: Bradenton, FL
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300 horses... turbo. That would be very tough to do all motor. Start with the simple stuff like a CAI and exhaust work... then we can talk about getting you to 300 h.p.
Or just a 150 shot of nitrous!
_________________________
Corey Smith 
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#116152 - 07/31/06 08:41 PM
Re: 2002 Grand Prix Gt
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Member
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Registered: 05/23/03
Posts: 8078
Loc: Austin, TX
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I'd get with Chico and follow his instructions.
_________________________
Bobby
Died 5/1/08, resurrected 5/15/08
ASCD SD hood, 17" Bullitts, Overkill PCM, 3.4" Pulley, NGK TR55IX, K&N 9" cone filter, JimmyC D/P, U-bend removed, Flowmaster 40 series, Hooker big bore tips with resonators, S/B brake lines, drilled/slot rotors, GMPP handling kit, KYB struts, F&R strut supports, HID's, LED's, 2.5" Air Dam, red GTP overlays on custom badges, white rear insert.
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#116153 - 08/01/06 07:17 AM
Re: 2002 Grand Prix Gt
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Member
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Registered: 02/08/04
Posts: 3463
Loc: Gonzales Tx.
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You need to clarify your question,are you looking for 300whp or chp? First let me say you are starting with 200chp and have about 160whp so even to build a motor N/A that is 300chp is not easy,you will have to do internal engine work starting with a bump in compression ,this will mean milling your heads at least 30k and doing a complete port and polish job ,you will need to change cams add headers ect.and just let me say with just bolt ons you will not reach your target,unless you have built quite a few performance engines and can do most of the work yourself be prepared to spend mucho denaro,but if your serious about this project I'd be glad to help you out and have many parts available,to give you an example of a factory built N/A 3.8 at 295chp maybe Bobby could find the link for the MC intimidator this will give you an idea of the engine build sheet.Chico.
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#116154 - 08/01/06 09:35 AM
Re: 2002 Grand Prix Gt
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Member
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Registered: 05/23/03
Posts: 8078
Loc: Austin, TX
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_________________________
Bobby
Died 5/1/08, resurrected 5/15/08
ASCD SD hood, 17" Bullitts, Overkill PCM, 3.4" Pulley, NGK TR55IX, K&N 9" cone filter, JimmyC D/P, U-bend removed, Flowmaster 40 series, Hooker big bore tips with resonators, S/B brake lines, drilled/slot rotors, GMPP handling kit, KYB struts, F&R strut supports, HID's, LED's, 2.5" Air Dam, red GTP overlays on custom badges, white rear insert.
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#116155 - 08/01/06 02:29 PM
Re: 2002 Grand Prix Gt
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Member
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Registered: 07/15/04
Posts: 3141
Loc: Chicago, IL
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Personally, I think you'd spend way to much money to get 300whp on a GT. I would be easier with a GTP. But, if you want, listen to Chico. Good luck!
_________________________
DHP V1.0, Slotted rotors, S/S Brake Lines, Custom CAI, GMPP Handling Kit, KYB's, Jimmy C DP (U-Bend delete w/ Hi-flow cat), Flowmaster Super 40's, drilled 180° T-Stat, Alt. Rewire & Alt. Voltage Booster Combo, 605's, ZZP Motor Mounts
"The only difference between me and a madman is that I am NOT mad!" - Dali
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#116156 - 08/02/06 12:46 AM
Re: 2002 Grand Prix Gt
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Member
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Registered: 04/22/05
Posts: 3075
Loc: Cleveland, OH
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If you want that much power you're best bet is supercharger or turbocharger. There are quite a few kits out now.
New M90 kit ~$1400-1700
New turbo kit ~$3000-4000
theres a few turbo setups.
New CSC kit ~$3000
I just talked about CSC in another thread tonight.
PS, sorry for the million posts tonight! I had to catch up after getting back from vacation.
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