Is 393rwhp on an 8lbs vortech good numbers?

[JaguarS4R]

I took my car on the dyno and all I got was 393rwhp, not sure if thats really that good but here are my stats from what I know now (dont know much since im not able to get a hold of the previous owner yet) It is in tune, NOT running rich and NOT running lean, However it redlines at like 6200 RPM, why is that? Shouldn't it redline at 6500-6700?

97 Cobra:

Vortech Si-Trim with 8lbs with Tial BOV
ProCharger Intercooler
BBK Headers
BBK OFF-ROAD Long Pipes
H-Pipe
4.10 (doesnt matter on dyno)

 

[98 Saleen Cobra]

Those are pretty good numbers. It's probably a conservative tune though which is perfectly fine.. How many miles are on the motor?? It might be why the tuner isn't spinning it that hard.

 

[JaguarS4R]

Motor has less than 5k miles, its pretty much brand new, that could be the reason too, its a built motor, anyone have an idea what 15lbs would do to the HP and a more aggressive tune?

 

[corysmach1]

My car has 150k miles and I made the numbers in the sig with a 10lb pulley it was 98 degrees that day. the car peaked at 11 psi. A/F is 11.3 and 17.5 degrees of timing on 93 pump. 6200 is a little short. If you have a built motor get your fuel setup right and turn up the boost.

 

[97desertCobra]

Sounds like a really really conservative tune. I made 400rwhp at 8# with 2 degrees of timing, 120+ outside temp and we didn't spin it past 6k(spark blowout issue). Like stated above, get your fuel system up to task and spin it faster and higher. You can make 550rwhp with 15# no problem.

 

[goats]

What kind of dyno was it. Was it a dynojet or a mustang dyno

 

[JaguarS4R]

Sounds like a really really conservative tune. I made 400rwhp at 8# with 2 degrees of timing, 120+ outside temp and we didn't spin it past 6k(spark blowout issue). Like stated above, get your fuel system up to task and spin it faster and higher. You can make 550rwhp with 15# no problem.

Yes but wont the belt be slipping at 15lbs, i want to do 15lbs, can i still get away without sipping

 

[JaguarS4R]

Also, is an SCT pretty much the best flasher?

 

[98 Saleen Cobra]

Yes but wont the belt be slipping at 15lbs, i want to do 15lbs, can i still get away without sipping

You made a thread on this already and I posted in it.. Get the right pulley combo and it won't slip.

 

[JaguarS4R]

I dont really know much about underdrive pulley, do i have to change that, why cant i just get a smaller blower pulley?

 

[pacific4v]

do you know the compression ratio of ur motor? If its a built motor intended for boost it may have a lower than stock compression ratio which would explain a little lower than average numbers. what size pulley is on it now?

 

[JaguarS4R]

do you know the compression ratio of ur motor? If its a built motor intended for boost it may have a lower than stock compression ratio which would explain a little lower than average numbers. what size pulley is on it now?

i dont know the compression yet, ill hopefully find out soon, but I have a 3.60 pulley which is between 8-9lbs

 

[98 Saleen Cobra]

You would need a bigger crank pulley aka a overdrive pulley.. Overdrive is bigger, Underdrive is smaller. It'll add more boost and also more belt wrap.

 

[JaguarS4R]

Uderdrive and overdive pullies are both crank pullies? Meaning harmonic balancer?

 

[CHUXSVT]

My buddy made 556 hp on built motor T trim on 16 psi. 8 rib conversion

 

[CHUXSVT]

YouTube - ‪chuxsvt's Channel‬‏

He can't drive.....

 

[corysmach1]

My buddy made 556 hp on built motor T trim on 16 psi. 8 rib conversion

Solid numbers what did his built motor consist of compression cams etc?

 

[CHUXSVT]

Compresion was 9:1 with stage 3 crower cams.

 

[RIO RED SNAKE]

^whats his exhaust set up..car sounds good as hell

 

[CHUXSVT]

Btw sct is a good programmer. I have sct 3 in my lightning making 700hp on the bottle