- Apr 16, 2007
- 11
Is there a thread already started, keeping track of everyone's power level?
It would be great to see how much power everyone is making.
Thanks
It would be great to see how much power everyone is making.
Thanks
Hey guys we have to have some standards on the numbers.
RWHP, or est. crank HP.
Type of dyno used.
uncorrected, SAE, STD
Even with this information one cannot really compare dyno numbers. Edit you posts.
You forgot the most important number /uncorrected, SAE, STD & BS
Thats the kind of information I am looking for. Are those numbers pretty average for the GT with Whipple 3.4LI am running a Whipple supercharger with an Accufab throttle body, factory exhaust manifolds, factory cats, and an Accufab 'X' pipe. I am using a SCT tuner from Tony at HP-Performance that I further tuned with the Racer package. All of the runs are on my DynoJet 248c.
3.25" pulley averaging 22 psi
_____________RWHP____RWTQ
Uncorrected___807.45___764.25
STD__________795.28___752.73
SAE__________771.60___730.32
3.50" pulley averaging 19.93 psi
_____________RWHP____RWTQ
Uncorrected___792.50___730.76
STD__________775.32___714.93
SAE__________751.29___692.76
How's that for details.
Steve
I am running a Whipple supercharger with an Accufab throttle body, factory exhaust manifolds, factory cats, and an Accufab 'X' pipe. I am using a SCT tuner from Tony at HP-Performance that I further tuned with the Racer package. All of the runs are on my DynoJet 248c.
3.25" pulley averaging 22 psi
_____________RWHP____RWTQ
Uncorrected___807.45___764.25
STD__________795.28___752.73
SAE__________771.60___730.32
3.50" pulley averaging 19.93 psi
_____________RWHP____RWTQ
Uncorrected___792.50___730.76
STD__________775.32___714.93
SAE__________751.29___692.76
How's that for details.
Steve
I added those numbers to the original post.How much spark are you running up top?
Larry, those are two really good questions. According to some people that are a whole lot smarter than I am, the headers/no cats will not produce much more - if any - power than I already have. Based on that, the only reasons I would have for putting on headers and running no cats would be from a sound and looks perspective.Empty Pockets said:Hey Steve, do you think you'd gain much at all going to headers /no cats? Would the expense be worth the gains in your opinion "real world"?
Larry
I added those numbers to the original post.
Larry, those are two really good questions. According to some people that are a whole lot smarter than I am, the headers/no cats will not produce much more - if any - power than I already have. Based on that, the only reasons I would have for putting on headers and running no cats would be from a sound and looks perspective.
Since I live in a county here in Washington that requires smog checks, I will leave the factory exhaust system intact.
Steve
Hey Steve, do you think you'd gain much at all going to headers /no cats? Would the expense be worth the gains in your opinion "real world"?
Larry
Blackice, the BS was aimed more towards the local car show bench racing.:thumbsup :biggrin
Pockets, on a more serious note, about a 1 1/2 years back a friend and I spent some time on a dyno with both his GT and mine. We did pulls of stock, Borla with cats, Borla without cats, Accufab with cats and Accufab without cats. It proved one thing to me, the stock system works very well. There was about 10hp gain getting rid of the stock box and maybe another 10 loosing the cats. If we're talking about a 150 hp car 18 to 20 additional hp would be a nice addition. If your starting with 530+ hp and the return is 18 hp then I think the heat reduction and sound is a better reason to dump the stock system. Living in Ca. amoung the Smog police it made no sense removing the cats. I took my car to a local smog check (a friend) and ran the car. The car has a KB snout & 2.78, a "H" pipe and MMP tune, it passed the sniffer but God only knows if it will pass the Ca. mandated visual. As for headers I have heard of as much as 70hp gain but I'm skeptical.
Hey Steve, do you think you'd gain much at all going to headers /no cats? Would the expense be worth the gains in your opinion "real world"?
Larry
The noise would be unbearable. Also gutted cats have shown no real increase.
I am running a Whipple supercharger with an Accufab throttle body, factory exhaust manifolds, factory cats, and an Accufab 'X' pipe. I am using a SCT tuner from Tony at HP-Performance that I further tuned with the Racer package. All of the runs are on my DynoJet 248c.
3.25" pulley averaging 22.86 psi, 21* of timing, 33/67 blend of 92 unleaded pump gas / 101 unleaded race gas
_____________RWHP____RWTQ
Uncorrected___807.45___764.25
STD__________795.28___752.73
SAE__________771.60___730.32
3.50" pulley averaging 19.93 psi, 23* of timing, 50/50 blend of 92 unleaded pump gas / 101 unleaded race gas
_____________RWHP____RWTQ
Uncorrected___792.50___730.76
STD__________775.32___714.93
SAE__________751.29___692.76
How's that for details.
Steve