What kind of power are you 76mm guys making
01-30-2006, 06:21 PM
#21
Originally Posted by engineermike
Oh jeez, now you had to complicate things. . . here's the drama:
Original dyno with 383 cid, Vortech intercooler (3 psi pressure drop), 90 deg miter intake piping, 52 mm TB, unported LT4 intake, and 18 - 19 psi: 680 rwhp.
Later dyno with 383 cid, 2.5x bigger Bell intercooler, long radius intake piping, 58 mm TB, raised runner LT4 intake, 19 - 20 psi, and a washer stuck in the exhaust housing (doh!): 675 rwhp.
Most recent dyno with 363 cid and no washer stuck in the exhaust housing at 20 - 21 psi: 670 rwhp.
Either there's something wrong with my current combo, or the 383 flat-out made more power. Dyno testing has show that 355 cid will make more power than 383 cid with the T-76. That's why I say I don't have the kinks worked out yet and I expect ~80 more rwhp.
Mike
Original dyno with 383 cid, Vortech intercooler (3 psi pressure drop), 90 deg miter intake piping, 52 mm TB, unported LT4 intake, and 18 - 19 psi: 680 rwhp.
Later dyno with 383 cid, 2.5x bigger Bell intercooler, long radius intake piping, 58 mm TB, raised runner LT4 intake, 19 - 20 psi, and a washer stuck in the exhaust housing (doh!): 675 rwhp.
Most recent dyno with 363 cid and no washer stuck in the exhaust housing at 20 - 21 psi: 670 rwhp.
Either there's something wrong with my current combo, or the 383 flat-out made more power. Dyno testing has show that 355 cid will make more power than 383 cid with the T-76. That's why I say I don't have the kinks worked out yet and I expect ~80 more rwhp.
Mike
01-31-2006, 11:40 AM
#23
Originally Posted by NA$TY-TA
It was the same turbo im running.... GT42-76..... its a 76mm turbo and you did ask for 76mm turbo's....
Kyle
Kyle
01-31-2006, 05:05 PM
#25
Originally Posted by RealQuick
I think I am going to go with the GT42 76mm...I just want to see what people were getting with the different 76mm's out there.
we will know what mine does in a few weeks....... i just hope i dont max it out
Kyle
01-31-2006, 09:33 PM
#28
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Originally Posted by NA$TY-TA
It was the same turbo im running.... GT42-76..... its a 76mm turbo and you did ask for 76mm turbo's....
Kyle
Kyle
Yep, I think he's talking about my car. I don't believe in dyno numbers with an automatic, but the calcs say it made around 930hp to go 155mph @ 3200#. That was at 20.2 psi of peak boost, it was actually under 20 most of the run. According to the map, that turbo will be happier at 26psi or so, I will let you know what happens when we try that. Engine size is 347ci.
01-31-2006, 10:00 PM
#29
Originally Posted by Fryguy302
Yep, I think he's talking about my car. I don't believe in dyno numbers with an automatic, but the calcs say it made around 930hp to go 155mph @ 3200#. That was at 20.2 psi of peak boost, it was actually under 20 most of the run. According to the map, that turbo will be happier at 26psi or so, I will let you know what happens when we try that. Engine size is 347ci.
Yep Yep I was talking abut You Raj...... took some pic's when i was up there of your BEAST.....
Here's a pic for those who havent seen it............
Kyle
02-01-2006, 01:08 AM
#30
Originally Posted by NA$TY-TA
Yep Yep I was talking abut You Raj...... took some pic's when i was up there of your BEAST.....
Here's a pic for those who havent seen it............
Kyle
Here's a pic for those who havent seen it............
Kyle
j/k
Looks neat.Greg
