How Much Hp From This Combo
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How Much Hp From This Combo A friend of mine has a trans am m6 lt1 , he currently has all the bolt ons + a hotcam , he just dyno 325rwhp, he wanted to know what hp gains can he expect if he ported and polish the heads on his car.
Originally Posted by crz28
well its gonna be done by a very well respected mechanic.
Still way too vague. Most people who post up results of locally ported heads are putting down #'s on par with cam only cars. If your friend wants proven heads that made 405rwhp and trapped 118mph in a full weight car tell him to click the link in my sig.
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With the lack of details you're providing you might as well purchase or have your friend purchase some decent technical software rather than just trying to get numerous opinions on what people "think" his numbers will be.
On average with decently ported heads I've seen anywhere from 30-40rwhp gains. When you add a good intake Vs. the stock lt1 & a decent throttle body you could potentially add another 15rwhp.
The hotcam is a mild cam but some have had great results on the track Vs. dyno numbers, IMO track times are more important. With a GM847, stock bottom, full boltons & stock heads with 1.7rrs I put down 375rwhp netting me a humble low 12 1/4mi pass. Just goes to show you a simple cam profile Vs. head work can make a big difference.
With the lack of details you're providing you might as well purchase or have your friend purchase some decent technical software rather than just trying to get numerous opinions on what people "think" his numbers will be.
On average with decently ported heads I've seen anywhere from 30-40rwhp gains. When you add a good intake Vs. the stock lt1 & a decent throttle body you could potentially add another 15rwhp.
The hotcam is a mild cam but some have had great results on the track Vs. dyno numbers, IMO track times are more important. With a GM847, stock bottom, full boltons & stock heads with 1.7rrs I put down 375rwhp netting me a humble low 12 1/4mi pass. Just goes to show you a simple cam profile Vs. head work can make a big difference.
Last edited by -PEPE-; Sep 14, 2007 at 12:43 PM.
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