D1sc+pump gas+22pounds of boost=592rwhp

01yellercobra

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I understand that and like I said as long as your happy that's all that matters.. Also .5 compression isn't even worth 15rwhp.. Also you switched the cams to a 04 Cobra cam.. Just so you know the 01 Cobra cams are more aggressive and are better for the setup :D Glad you're happy though man.

He swapped the 01 cams in place of the 04 cams.

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harvboi05

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all these people comparing dyno numbers, theyre a joke anyways. i cant wait for the cooler number to see how well this thing traps. i bet this car flies.
 

98 Saleen Cobra

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Dyno's are a tool for tuning I agree, but there becomes a point where something just doesn't add up lol..

Sure for a pullied 04 Cobra they will make between 450-475 we'll say.. That's not to bad of a margin.. Some one will post a thread on low number and they made 450 on a dyno.. That could be a number of factors..

Someone puts 22psi down on a built motor with D1sc and only makes 592rwhp on DYNOJET I might add, not a loaded dyno and the numers are where they are I'm a little suprised.. That car with that pulley combo SHOULD be trapping 137's Id say and that's on the low side.. Now with 592rwhp and a badass driver I'd say it should trap 129ish.. So I guess we'll have to wait and see.
 

BADD281

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Interesting, my 2v made 556hp in 104 degree shop temps with 17lbs of boost with a little Si trim vortech. I understand you are happy with it but your setup is definitely flawed somewhere. Should be well into the 600's with 22psi.
 

harvboi05

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i used to be big on numbers til i built my car. my full weigh cobra trapped 119+ and made 376whp on a land and sea dinomite chassis dynamometer. lol.

lets say the dyno reads 5% low because who knows when the last time it was calibrated, thats shorting him 30whp. too many factors to consider.
 

98 Saleen Cobra

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That's true, but a dynojet you can't adjust and they are all programed the same.. atleast I thought..
 

Chances50

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another thing to look at he is making 22lbs at 7000rpm but making peak power at 6400 and at that rpm boost is only 18.5-19. still low on power IMO but not as bad as it seems.

Also on your race gas tune i dont see any signs of slipping in your graph?

also IMO your pump gas tune is very safe 11.3-5 range but that race gas tune is really lean for my taste.
 
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Jamie R.

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First I see your saying it's a built engine, this is a stock 04 cobra engine, if you wanna call that 'built' then that's cool. Ya'll can go on all you want about this. In the other thread you were haggling me about making this much boost on pump gas, now I'm underachieving. Let me know how fast you have ran so I'll have that to shoot for. Here's a little tidbit to chew on, on a dynojet, term with a 2.3 whipple pullied for 19lbs made 600 on race gas vs what I made on pump. Friend of mine has the term and then with a 35 shot made 650. My clutch slipped on a loaded dyno so I did'nt wanna go back to that one and went back to this one after my new clutch was broke in eventhough the car spun the previous time.

Jamie R.
'01 Silver Cobra on the Cover of MM&FF's August '07 Issue
 

Jamie R.

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Chances50, I see you trapped 122??? & make 631? Whats up with that???

Jamie R.
'01 Silver Cobra on the Cover of MM&FF's August '07 Issue
 

Chances50

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Chances50, I see you trapped 122??? & make 631? Whats up with that???

Jamie R.
'01 Silver Cobra on the Cover of MM&FF's August '07 Issue

That was on my old setup on 17's drag radials, was making 464rwhp then...

The link below is what it runs now with the 631hp.

http://www.svtperformance.com/forums/time-slip-bar-42/864602-mach-1-got-10s.html

BTW there is thing called a Signature that posts automatically so you dont have to type out "Jamie R.
'01 Silver Cobra on the Cover of MM&FF's August '07 Issue" everytime.
 
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Stanger00

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No numbers at the track for me but my 2 valve put down 614 on the dyno on pump gas (CA 91 octane) little Si trim vortech and only 16lbs of boost. Somehow my stock intake made power all the way to 6900 instead of corking up at 6400 like the other dynos I've seen over the years. I have a auto with locking converter to boot as well.

I just figured with that much boost you would be well into the 600s with pump gas. IDK
 

98 Saleen Cobra

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My car trapped 130 on 600rwhp spinning thru 3rd with road racing suspension and 2.1 60ft.. Trap 133 or higher and I'll shut my damn mouth.

Also built motor yes, it is.. You have forged rods and pistons there for being a built motor.. It's not a stock motor.

Also this sounds like the dyno might just be a low reading dynojet for some reason.. It is what it is.. Run it and let us know how high it traps.
 
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01yellercobra

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It's not just about the boost level. It's almost about timing. How much timing are you guys running that made it into the 600's on lower boost levels? 14 degrees isn't exactly pushing the limits. If he wanted to push it he could probably crank up the timing to 18-19 degrees and definitly be well into the 600's. But then one bad tank of gas and boom. There goes the motor.
 

98 Saleen Cobra

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Mine was 17psi, 18 degrees of timing pump 91 octane.. I would be shocked if his motor lasts now even with 14 degrees of timing.
 

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