774/774 dyno sheet
01-19-2004, 09:01 PM
#1
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Join Date: Jan 1999
Location: I reached back like a pimp and smacked that LS1....
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774/774 dyno sheet
Incase anyone is interested, this is the latest run on my Single turbo LT1 with 20lbs boost through a 4in exhaust/magnaflow muffler.
www.ls1speed.com/artwork/jimdyno.jpg
www.ls1speed.com/artwork/jimdyno.jpg
Are you still running the ATI 3-core sheetmetal intercooler? What are your IATs at WOT?
01-20-2004, 11:45 AM
#8
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Location: I reached back like a pimp and smacked that LS1....
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Thanks guys.
Still using the ATI sheetmetal intercooler. I may try something else though.
At the start of the run, IAT's are 65deg, and ramp up to 140 by 6500. I'm not able to get much airflow through the core on the dyno though.
The turbo is an Innovative GT80BB R-trim
Still using the ATI sheetmetal intercooler. I may try something else though.
At the start of the run, IAT's are 65deg, and ramp up to 140 by 6500. I'm not able to get much airflow through the core on the dyno though.
The turbo is an Innovative GT80BB R-trim
01-20-2004, 12:34 PM
#11
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Location: Valrico, FL
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I can't argue with it being more helpful on the street. I would figure a .85 or .96 would make the best power under the curve with your setup, but then again, it'd be blowing the tires off on the street.
It's an interesting dilemma that I hadn't put much thought into. Was the larger A/R to bring boost on slower part of your plan all along? If so, that's some serious foresight you got goin'...
Marty
It's an interesting dilemma that I hadn't put much thought into. Was the larger A/R to bring boost on slower part of your plan all along? If so, that's some serious foresight you got goin'...
Marty
01-20-2004, 04:11 PM
#12
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Location: Cleveland, WI
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I ran a .85 housing on my PT-76, and It would spool up very quickly on the street up to 16 psi, but on the dyno it took until almost 5500 to get up to 16psi. Dyno's don't load the turbo like the street does.
Bill
Bill
01-20-2004, 05:05 PM
#13
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Originally posted by SMOKNZ
I ran a .85 housing on my PT-76, and It would spool up very quickly on the street up to 16 psi, but on the dyno it took until almost 5500 to get up to 16psi. Dyno's don't load the turbo like the street does.
Bill
I ran a .85 housing on my PT-76, and It would spool up very quickly on the street up to 16 psi, but on the dyno it took until almost 5500 to get up to 16psi. Dyno's don't load the turbo like the street does.
Bill
01-20-2004, 06:12 PM
#14
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Location: Vancouver, WA
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Originally posted by got_hp?
unless youre on a mustang dyno. i understand they can program in the variables so that it loads the wheels.
unless youre on a mustang dyno. i understand they can program in the variables so that it loads the wheels.
Seriously Jim, you need to get some video coverage next time you put it up on the rollers.
I'd love to hear that boy spooling.BTW, nice numbers.
Mike
01-20-2004, 10:31 PM
#15
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Location: Hollywood, FL
Posts: 372
Very impressive
whats a quick run down of your motor? i mean it can't be stock running 20psi! I am hoping to see slightly higher numbers with a 396 and a t-88. not that i wouldn't be happy with 774!
whats a quick run down of your motor? i mean it can't be stock running 20psi! I am hoping to see slightly higher numbers with a 396 and a t-88. not that i wouldn't be happy with 774!