dyno my h/c car today
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dyno my h/c car today
2000 camaro ss 6 speed, how does my a/f look
ls1 bored .10 349 cubic inches
222/224 566/568 112 comp cams
patroit ls6 stage 2 heads 10:5:1 compression
hooker long tubes
ls6 intake
ported tb
ls6 maf
slp air lid
bellow
3 inch y-pipe
ls1 bored .10 349 cubic inches
222/224 566/568 112 comp cams
patroit ls6 stage 2 heads 10:5:1 compression
hooker long tubes
ls6 intake
ported tb
ls6 maf
slp air lid
bellow
3 inch y-pipe
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You could use some fuel curve tuning.. it is kinda rich at the end. Were you running thru a full exhaust or did you have a cutout? I would have expected over 400rwhp with that setup.
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Originally Posted by gomer
You could use some fuel curve tuning.. it is kinda rich at the end. Were you running thru a full exhaust or did you have a cutout? I would have expected over 400rwhp with that setup.
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Originally Posted by Terry@RacetechSpeed
Your A/F needs some tuning.It seems a little low.How new is the short block?
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Originally Posted by jason5
the car had 50,000 miles on it and i pulled and bored it .10 to get rid of the piston slap and it did, and put cam, heads, comp r lifters, yella terra rockers, comp pushrods, ported ls6 oil pump, headers and ls6 intake on it, the motor has 400 miles on it today when i had it dyno
Btw, I ran a set of the TSP raceport LS6 styles a while back with a 221/221 .558/.558 114lsa and made 424rwhp 398rwtq thru a 10 bolt.
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Originally Posted by gomer
The comp R lifters may be your problem. Did you triple check the hot preload on them? Too much preload on the comp R's (which require much less than stock) is a very bad thing.
Btw, I ran a set of the TSP raceport LS6 styles a while back with a 221/221 .558/.558 114lsa and made 424rwhp 398rwtq thru a 10 bolt.
Btw, I ran a set of the TSP raceport LS6 styles a while back with a 221/221 .558/.558 114lsa and made 424rwhp 398rwtq thru a 10 bolt.
incorrect preload can lose that much hp
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Originally Posted by jason5
incorrect preload can lose that much hp
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dang i didn't know they were different from stock, i set the preload at .035 with yella terra rockers and 7.450 pushrods, because i thought that what stock was suppose to be around. well this sucks, i guess i'm gonna have to buy some adjustable rockers now, does any one know what the preload need to be with these lifers
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Originally Posted by jason5
dang i didn't know they were different from stock, i set the preload at .035 with yella terra rockers and 7.450 pushrods, because i thought that what stock was suppose to be around. well this sucks, i guess i'm gonna have to buy some adjustable rockers now, does any one know what the preload need to be with these lifers
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well first i had 7.350 pushrods with no shims and the car sounded like a loud sewing machine and the cam wasn't loping so i knew something was wrong, pulled the valve covers off, and there was so much clearence between the pushrod and rocker, you could shake the rocker, i measure the clearence between the rocker and valve spring but i forgot what it was, so i put 7.450 pushrods in and it quieten it down and the cam started loping then figure it fixed the problem, so what route should i go now
Last edited by jason5; 11-29-2004 at 09:11 PM.
#13
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You will only have a 1/4 of a turn preload on the Comp R lifters.I would go back to the stock type lifter.The incorrect preload will rob tons of power.