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Old 11-03-2009, 06:19 AM   #21
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

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Originally Posted by STIdad View Post
I believe that the fit and finish of this kit is outstanding. I showed it to my local tuner and he seemed to think it was put together pretty well. He did question the use of hose clamps as opposed to T-bolt clamps on the intercooler piping, but that's an easy fix, and AMS addressed that in a NASIOC thread (search for AMS FMIC and I'm sure you'll find it) basically saying it wasn't a big issue and if T-bolt clamps are overtightened they can crush the piping... whatever. The only other minor issue I have with the kit is that they don't provide a 2.25" up-pipe to header gasket (which is the up-pipe inside diameter), instead they use a stock or 2" gasket. Hopefully they get one procured soon so that potential step can be removed. FWIW my Grimmspeed PnP mainfold couldn't be ported more than 2" anyway.
It was said before in the other thread but Russ touched on it. T-bolt clamps work great but you can very easily crush aluminum piping. We have seen it hundreds of times before. In most cases it requires you to replace the pipe. As long as you have a good bead at the end of every pipe (like all of our intercooler kits) and long enough quality couplers you will not have a problem. We have had 700whp cars here with worm clamps and no problems.

As for the gasket, we simply don't provide it because of the many different headers out there. In this case Russ had his ported and there was no need for a gasket.

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The 750R turbo is hard for me to compare. My pump gas numbers are a little bit lower than I expected considering this turbo is larger than a GT3076R, but then again it is a turbo that supposedly "wakes up" at higher boost pressures, and that seems to be confirmed by the 31psi E85 dyno plot. It also maintains boost all the way to redline and thus has nearly no horsepower drop off in the upper rpm range just like most of the larger turbo offerings.
Perhaps AMS can chime in and give some additional thoughts on how this turbo flows and compares to others.
The 750R turbo is a gt30R variant. It spools a few hundred rpm later then a standard 30R but is capable of making a 100whp more.

On pump gas this turbo is going to make about 20whp or so more then the 3076. Its not much of a difference but it doesn't run out of steam up top.

-Dan
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Last edited by AMS; 11-03-2009 at 06:53 AM.
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Old 11-03-2009, 06:26 AM   #22
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

Nice numbers. is it possible to run that turbo that's on the evo that's making 8-900HP on the sti. what turbo is that? the 42R?

this video I am talking about. http://videos.streetfire.net/video/A...eets_14256.htm

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Old 11-03-2009, 06:50 AM   #23
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

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Nice numbers. is it possible to run that turbo that's on the evo that's making 8-900HP on the sti. what turbo is that? the 42R?

this video I am talking about. AMS Evo on the streets - Car Videos on StreetFire

That was a 42R setup. We don't have anything for the STI that big.

Our 950R turbo is capable of 800-850whp on an evo. I would love to see what it can do on an STI.
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Old 11-03-2009, 06:51 AM   #24
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

did you all do anything to the powersteering line? I know on my 05, with my GT30R fitout, we had to go to a braided line because I was 25 lbs +. Im just curious, I dont see it in your list?
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Old 11-03-2009, 07:24 AM   #25
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

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That was a 42R setup. We don't have anything for the STI that big.

Our 950R turbo is capable of 800-850whp on an evo. I would love to see what it can do on an STI.
Yea true, that's because the 4G63 has been around alot longer then the EJ Motors, and most tuners are still learning about the EJ motors. plus you can run more aggressive maps on 4G motors.
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Old 11-12-2009, 12:10 PM   #26
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

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This thing is SICK

props for having such a badass STIdad, and AMS is definately on my list now after seeing this car, and topspeed's
thats a sick rims! it is perfect for that color! havent seen you around H-Town before.. you go to any meets?
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Old 12-21-2009, 07:15 PM   #27
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

Video ?
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Old 12-22-2009, 08:02 AM   #28
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

Didn't get any, and the car's gone to turbo heaven...

Perhaps I should elaborat just a little. I hit some gravel coming into a really sharp curve and put the car in a deep ditch, totaling it (broke traction and slid). Sucks.

Russ

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Old 12-22-2009, 11:22 AM   #29
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

So lets get this correct. You crashed it after the turbo kit was on?
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Old 12-22-2009, 01:00 PM   #30
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Default Re: AMS 750R Turbo Kit Results on 08 STI with E85. 517hp 493tq SAE

uh, yeah...sh!t happens...

FYI, the power upgrades didn't have anything to do with it, my breaking too late coming into a >90 degree curve on a road I'd never been on was more the culprit. Bad judgment and loose gravel FTL...
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