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ThatTABoy
11-03-2005, 10:33 AM
Hi, as some of you know, im building an LS1 for my Trans Am, thatīll be a Mild LS1, does anyone knows what HP i could expect from an 02 ls1 with the cats removed, Free flowing Filter, stock manifolds, 2.5" True dual exhaust, Flowmaster mufflers, ls6 cam and springs?

What top speed could i expect from it on an 80 trans am with 73 front end,4l60-e and 4.10īs with 275/40/zr-17.

anyone knows how much a second gen weights with the ls1/4l60e?

ThatTABoy
11-03-2005, 10:34 AM
1/4 mile times??

Ralph LoGrasso
11-03-2005, 03:02 PM
The only thing I can help you with is HP, and with the above mods, you'll probably see 325-335rwhp or so, considering you're an A4. The stock manifolds will be holding 15rwhp or so back.

For the top speed questions, you'll probably want to find a gear ratio calculator.

1/4 miles times, just a WAG (what stall convertor?) -- Mid-High 12s if the car is stalled. Those 4.10s should help a lot. I'm assuming your car weighs around 3400lbs which is slightly less than a 4th gen.

Also, you may want to pass on the flowmaster mufflers. I'm not sure what series you're using, but the flowmaster catback for 4th gens is probably the worst flowing catback made. Just as restrictive as stock, sure sounds nice though.