damn it only 347 rwhp
damn it only 347 rwhp well this really sucks! i just put in the prc 5.3 heads (stage 2.5) with the 237/242 cam. got it tuned and the outcome was 347 rwhp and 346 torque. 
well i know i need a bigger exhaust, (have pacesetter longtubes 2.5 y-pipe stock cat-back) and different intake (have the stock ls1 intake and tb), but i really don't think that after this it'll gain the hp that all the other guys have been getting with this combo. this is an a4 with a 4000 stall. can't really think what the problem is thats restricting this. any ideas??
well i know i need a bigger exhaust, (have pacesetter longtubes 2.5 y-pipe stock cat-back) and different intake (have the stock ls1 intake and tb), but i really don't think that after this it'll gain the hp that all the other guys have been getting with this combo. this is an a4 with a 4000 stall. can't really think what the problem is thats restricting this. any ideas?? was it dynoed with the TC Locked? and you have a camaro with LTs!!!get x or h pipe and dump it! be lucky you dont have a t/a and would have it look goofy with it being dumped. im sure that would help, but those numbers are really low. I ran 232/251 with bolt ons, 3in gmmg catback, ls1 intake, no ud pulley, and a half assed driveway tune. now i have ls6, true duals, pulley. so im probably right where you are hp wise.
Originally Posted by 1LoudTA
was it dynoed with the TC Locked? and you have a camaro with LTs!!!get x or h pipe and dump it! be lucky you dont have a t/a and would have it look goofy with it being dumped. im sure that would help, but those numbers are really low. I ran 232/251 with bolt ons, 3in gmmg catback, ls1 intake, no ud pulley, and a half assed driveway tune. now i have ls6, true duals, pulley. so im probably right where you are hp wise.
there is definitly a problem here!! your exhaust would not restrict that much power. A dyno sheet would be helpfull. Where is it peaking is there a drop off need more info 
Although a good exhaust,intake and TB would probably give you another 30-40 hp. do you have a pulley?
Although a good exhaust,intake and TB would probably give you another 30-40 hp. do you have a pulley?
Originally Posted by pewter-peiter
well this really sucks! i just put in the prc 5.3 heads (stage 2.5) with the 237/242 cam. got it tuned and the outcome was 347 rwhp and 346 torque. well i know i need a bigger exhaust, (have pacesetter longtubes 2.5 y-pipe stock cat-back) and different intake (have the stock ls1 intake and tb), but i really don't think that after this it'll gain the hp that all the other guys have been getting with this combo. this is an a4 with a 4000 stall. can't really think what the problem is thats restricting this. any ideas??
well i know i need a bigger exhaust, (have pacesetter longtubes 2.5 y-pipe stock cat-back) and different intake (have the stock ls1 intake and tb), but i really don't think that after this it'll gain the hp that all the other guys have been getting with this combo. this is an a4 with a 4000 stall. can't really think what the problem is thats restricting this. any ideas??stock catback with no cut-out
ls1 intake<-- with h/c ? ARE YOU CRAZY?
3" ypipe would help as well
TB is a few hp if you're looking for all out numbers
and your stall isnt exactly dyno friendly
Period. I'd say with just an ls6 intake u pick up 20-25 rwhp and who knows how much through out the curve. Cut-out, again 5-10 and sometimes even 15hp. Those right there and locking the verter would put u where u want to be.
hay guys dont mean to change the subject . i have a 1999 camaro ss a4 . i was wondering how much hp im running with these mods i have done . slp air lid . kan air filter . slp cold air kit . smooth bellow 160 stat . slp loud mouth . power programmer . tb bypass . bbk 80mm throttle body . just wondering how much hp im runnig . and im going to get me a ls6 intake to back it up . thanks guys
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From: Texas and Qatar
Looks like the H/C can't breathe like it obviously needs to (LS1 Intake/stockish exhaust). To top that off, going through a vig 4000 stall isn't going to be dyno friendly either.
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Originally Posted by -Joseph-
Looks like the H/C can't breathe like it obviously needs to (LS1 Intake/stockish exhaust). To top that off, going through a vig 4000 stall isn't going to be dyno friendly either.
what he said 
who cares about dyno numbers? I dynod 346/346....I just ran 12.01 on nittos...full weight, no tune, and stock suspension. my goal is 11.50s next year with computer/suspension tuning and maybe a little weight reduction.
i might swap out the 3500 stall for a little more, but that depends if I become a cheater and get nitrous, lol.
i might swap out the 3500 stall for a little more, but that depends if I become a cheater and get nitrous, lol.
replies thanks for the replies guys. this was on a dyno-jet. does a pulley help that mych towards hp? (which pulley is better?) oh yeah, and i do have a 3 inch cut-out. sorry i can't put the dyno sheet up (no scanner) but i will tell u what it peaks and drops at: peaks at-6600 rpm drops at-5300 rpm. air - fuel ratio: 14.9 at 3500 rpm and 12.9 at 6600 rpm.
Originally Posted by 99ssleeper
who cares about dyno numbers? I dynod 346/346....I just ran 12.01 on nittos...full weight, no tune, and stock suspension. my goal is 11.50s next year with computer/suspension tuning and maybe a little weight reduction.
i might swap out the 3500 stall for a little more, but that depends if I become a cheater and get nitrous, lol.
i might swap out the 3500 stall for a little more, but that depends if I become a cheater and get nitrous, lol.
Originally Posted by Brian Tooley
Did you flycut your pistons? Because that cam should not clear with those heads otherwise. If your valves are hitting your pistons, you will be way down on power.
