What's the highest RWHP with stock exhstmaniflds.
07-30-2002, 11:30 PM
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Re: What's the highest RWHP with stock exhstmaniflds. Thanks guys for responding , looks like 360-375 RWHP is possible on stock manifolds. Question thogh, I notice some of you guys were running these high numbers with the new iron manifolds anybody run these high numbers on the 99 style stainless steel exhaust manifolds? Or is it just the new iron manifolds? Thanks
07-31-2002, 04:46 AM
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Re: What's the highest RWHP with stock exhstmaniflds. If memory serves correctly, last year we have gone as high as 378 RWH 383 Tq with stock cast iron manifolds/stock cats, S1 heads with a 218 .528 cam. When the project was finished we installed a set of Mac headers and really didn't pick up that much power at first, we were a litlle dissapointed, so we re-tuned the car and found the PCM richened it up quite a bit, leaned the engine down via MAFT and it turned 408/393 through 4:10 gears and a steel DS, tunning means alot. 98 Stainless steel manifolds flow about 18 to 20 cfm less across the board from .250 lift on up to .550 lift compared to the late model cast iron pieces.
Joe.
<small>[ July 31, 2002, 04:48 AM: Message edited by: JPR ]</small>
Joe.
<small>[ July 31, 2002, 04:48 AM: Message edited by: JPR ]</small>