How much HP in an '02 GT with bolt ons is possible?

Low 13's, high 12's is doable with bolt-ons.

I would say with a stock bottom end, you can get around 340 max rwhp without going power adder. That's with ported heads though, don't know what you consider a bolt on. 300ish is possible with cams on stock heads, which will get you into the 12's if you can drive.

Bullitt5339 said:

Low 13's, high 12's is doable with bolt-ons.

I would say with a stock bottom end, you can get around 340 max rwhp without going power adder. That's with ported heads though, don't know what you consider a bolt on. 300ish is possible with cams on stock heads, which will get you into the 12's if you can drive.

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I started another thread where I stated a lot of what I plan on doing to the car. I'm going to go the 4.10 route, and maybe a more aggressive cam, now that you mention it.:bigthumbsup I don't plan on getting ported heads, though, but who knows, I may become obsessed. I guess "bolt-ons" is kind of vague, I guess I consider them pretty much anything I can install in my garage. I'll definitely have a shop install the gears and cam, though. Other than those, I want to do everything myself.
Good to hear that I can achieve 12's. As for the driving part, I have an auto so I shouldn't have much of a problem there.

With an naturally aspirated automatic, and the quest for 12's, I would do 4.30 gears and a 3800 stall converter first, then work on the other bolt ons. You will see a lot more gain from those 2 things than almost the rest of bolt ons combined.

Bullitt5339 said:

With an naturally aspirated automatic, and the quest for 12's, I would do 4.30 gears and a 3800 stall converter first, then work on the other bolt ons. You will see a lot more gain from those 2 things than almost the rest of bolt ons combined.

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Really, 4.30's? It thought that the 4.30's would rev too high at highway speeds. I guess I should mention that I do plan on driving on the highway.

If you want bolt on 12s then you will have to use crazy gears and converter your mileage is going to suck. with heads cams and full boltons you could go 4.10s and your mileage wouldn't suffer because your engine would make power higher in the powerband it would be more like a 4v. or you could just spray it with a 100 shot tune and boltons and you would be in the 12s without cams low 12s with cams.