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Old 2005-04-27, 01:08 PM   #51
doubleurx
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Quote:
Originally Posted by BAN SUVS
Your bottom end is good for close to 8000 of that. You can dyno test with an 8000 rpm redline to see if you get valve float.
Ahh yes, nothing floats my valves better than an 8000 rpm redline.
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Old 2005-04-27, 01:11 PM   #52
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Originally Posted by sperry
So what's the explaination of the huge loss of early torque? Is that just the lag from the front mount? Or is that baseline from before the new turbo?

Also, you're only about $8000 worth of head work away from a 9,000 rpm redline!

The baseline was the stock turbo. So it is a combination of the turbo and the front mount. But that brings up a good point. I should get one plotted with the new turbo without the front mount. I honestly don't notice the lag from the FMIC, but did notice the torque change when the new turbo was installed.
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Old 2005-04-27, 01:14 PM   #53
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Quote:
Originally Posted by sperry
So what's the explaination of the huge loss of early torque? Is that just the lag from the front mount? Or is that baseline from before the new turbo?

Also, you're only about $8000 worth of head work away from a 9,000 rpm redline!
The red torque curve is the turboback, intake, headers and reflash only.
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Old 2005-04-27, 01:15 PM   #54
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On a related note ... so much for the slowboy turbos having a super early spool
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Old 2005-04-27, 01:20 PM   #55
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Quote:
Originally Posted by MikeK
On a related note ... so much for the slowboy turbos having a super early spool
It's the GT30-10 w/ the super early spool. This is the GT30-12 big horsepower turbo w/ a later spool, IIRC.
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Old 2005-04-27, 01:22 PM   #56
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Quote:
Originally Posted by MikeK
On a related note ... so much for the slowboy turbos having a super early spool
Agreed. What I really like about the torque curve and the butt dyno is that it is much smoother that the vf39. I'm still getting used to the 1200-1400 rpm difference, but so far I really like it. Driveablity around town is just like stock. On the highway..........well you'll see.
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Old 2005-04-27, 01:53 PM   #57
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I'm pretty sure the early torq loss is due to the bigger turbo. my max torq went from like 3000 rpm's to 5000 rpm's hahahaha..

yeah it would kinda be bad for autocross.. but oh well.. can't always have everything..
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Old 2005-04-27, 02:02 PM   #58
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Quote:
Originally Posted by Evo Mike
I'm pretty sure the early torq loss is due to the bigger turbo. my max torq went from like 3000 rpm's to 5000 rpm's hahahaha..

yeah it would kinda be bad for autocross.. but oh well.. can't always have everything..

You know it makes the same torque at the same rpm as a stock sti. Then it just climbs another 120 #' from there to redline. So it may not be that bad for autocross, especially if Mike K drives it!
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Old 2005-04-27, 02:11 PM   #59
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Wait... boost threshold for the GT30-12 is the same as Mike's stock car? o_0
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Old 2005-04-27, 02:19 PM   #60
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Quote:
Originally Posted by BAN SUVS
Wait... boost threshold for the GT30-12 is the same as Mike's stock car? o_0

I was referring to the torque curve on the dyno. The GT30-12 produces around 210#' of torque under 4000 rpm which is the same for a stock STI's max. boost.

Does that make sense? I'm fryed at work and our HP 1055CM plotter is failing in the middle of a huge job!
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Old 2005-04-29, 11:21 AM   #61
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Quote:
Originally Posted by doubleurx
I was referring to the torque curve on the dyno. The GT30-12 produces around 210#' of torque under 4000 rpm which is the same for a stock STI's max. boost.

Does that make sense? I'm fryed at work and our HP 1055CM plotter is failing in the middle of a huge job!

What exactly do you do?

Brian
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Old 2005-04-29, 11:58 AM   #62
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What exactly do you do?

Brian

I pimp hookers on 4th street..........I'm an architect on the side.
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Old 2005-04-29, 02:21 PM   #63
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I pimp hookers on 4th street..........I'm an architect on the side.

Need any help?

Oh yeah, I'm an Architectural and Structural Draftsman.
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Old 2005-04-29, 03:19 PM   #64
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Need any help?

Oh yeah, I'm an Architectural and Structural Draftsman.

Not at the moment, but when we get swamped we sometimes contract some of the drafting out. You should PM me all your info/skills etc.

Nick
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