I really noticed mine pulled alot harder too on the old butt meter. You gotta love those Mcleod twin disc even though they're heavy mine bites like a bear. 
nice gain 
LSX 90mm results!
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Joined: Nov 2001
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From: Bay Area, CA
LSX 90mm results! ok so the best SAE numbers I have put down with cut outs closed was about 486 rwhp, cutouts open 491 rwhp, one dyno I put down 494 rwhp SAE and another I think it was 497 rwhp SAE so as far as I know my dyno reads slightly lower than others in the area, it is also the newest though 
so tonight I got my LSX finished up and port matched to my heads, and got her on the dyno, first pull 465 rwhp! OMG WTF!!!! lol turns out I had a MAP sesnor problem, RTV stuck in there, damn you FAST! which put me in my low octane timing tables and I was only at 12 degrees of advance! wow!
so I fixed that problem got it back to 28-29 degrees and it pulls 495 rwhp SAE, ok still not happy, AF was actually rich at this point so I slap on my buddys 02+ LS6 maf with no screen as apposed to my 01 screened LS6 maf and it gained went to 505 rwhp, so I tweak the AF a little bit and get it to the final numbers of :
515 rwhp / 501 rwtq SAE
actual numbers were 525 rwhp / 510 rwtq
so thats about a 30 hp gain on my dyno, which dynos are just that relative, the car pulls a lot harder, now its time for a really big nasty cam
keep in mind this car is spinning a 50 pound mcleod twin disk clutch, a heavy nitrous ready steel drive shaft, im guessin 25 pounds or more, 12 bolt with 4.10s and heavy AFS 17x11 ZR-1 wheels no doubt this car would put down 530-540 rwhp with a freindlier rotating mass!!
cam specs 242/242 - 112 1-7/8s LT QTP headers, compression ratio is 10.7:1
have a good day!
so tonight I got my LSX finished up and port matched to my heads, and got her on the dyno, first pull 465 rwhp! OMG WTF!!!! lol turns out I had a MAP sesnor problem, RTV stuck in there, damn you FAST! which put me in my low octane timing tables and I was only at 12 degrees of advance! wow!
so I fixed that problem got it back to 28-29 degrees and it pulls 495 rwhp SAE, ok still not happy, AF was actually rich at this point so I slap on my buddys 02+ LS6 maf with no screen as apposed to my 01 screened LS6 maf and it gained went to 505 rwhp, so I tweak the AF a little bit and get it to the final numbers of :
515 rwhp / 501 rwtq SAE
actual numbers were 525 rwhp / 510 rwtq
so thats about a 30 hp gain on my dyno, which dynos are just that relative, the car pulls a lot harder, now its time for a really big nasty cam
keep in mind this car is spinning a 50 pound mcleod twin disk clutch, a heavy nitrous ready steel drive shaft, im guessin 25 pounds or more, 12 bolt with 4.10s and heavy AFS 17x11 ZR-1 wheels no doubt this car would put down 530-540 rwhp with a freindlier rotating mass!!
cam specs 242/242 - 112 1-7/8s LT QTP headers, compression ratio is 10.7:1
have a good day!
so you went from a best of 497 to 515??? that is 18rwhp not 30. still not bad at all, but I don't see where 30 is comming from. you can't compare SAE to corrected numbers.
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From: Bay Area, CA
other dynos, at first I was comparing what other dynos compared to my dyno, the best my car even did on MY dyno was 486 rwhp, cutouts closed.
AFR was about 13.3 peak power, the 486 rwhp was about the same of course I throw some more fuel in the car for street, the car lost power going to 12.9ish, so I added a tad more fuel, and left it at that.
AFR was about 13.3 peak power, the 486 rwhp was about the same of course I throw some more fuel in the car for street, the car lost power going to 12.9ish, so I added a tad more fuel, and left it at that.
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I just ordered my 90mm Intake and Tbody. I am switching over to TH400. I bested 504 with the old combo. Now I am getting my old JPR heads redone by Absolute to a S3. I am hoping that between the new intake/tb and the new heads, I can more than make up for the tranny swap. Good To hear that this is a worthwhile mod. Cheers. Bear
Originally Posted by hold
wht the pest cylinder heads 4 ls1 ? and haw i can got low compression and high HP becuase i laike 2 build 4 supercharger?
if you want to lower your compression for boost run some 317 6.0 heads or dished pistons.
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Joined: Nov 2001
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Originally Posted by Nickn20
AFR was about 13.3 peak power, the 486 rwhp was about the same of course I throw some more fuel in the car for street, the car lost power going to 12.9ish, so I added a tad more fuel, and left it at that.
Thread Starter
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Joined: Nov 2001
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From: Bay Area, CA
it really depends on how the timing was adjusted prior, this intake made my G/cyl go a lot higher .90-.96 I beleive, so yes it is using the higher timing tables, but I had already modified those to the timing I wanted the last time I tuned my car.
