single GT35R?
Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
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From: clemson / charleston SC
single GT35R? another turbo fitment question:
I am looking to turbocharge a stock 2002 LS1, my question is would a single GT3582R ball bearing turbo with a Tial 1.03 a/r turbine housing be too small for my motor? I plan on running no more than 8psi with this turbo, and I am looking to make between 500-550 whp.
The reason for choosing a small turbo is to minimize lag as much as I possibly can, plus I can get a deal on this turbo. What do you guys think? Is it possible?
Thanks guys,
-John
I am looking to turbocharge a stock 2002 LS1, my question is would a single GT3582R ball bearing turbo with a Tial 1.03 a/r turbine housing be too small for my motor? I plan on running no more than 8psi with this turbo, and I am looking to make between 500-550 whp.
The reason for choosing a small turbo is to minimize lag as much as I possibly can, plus I can get a deal on this turbo. What do you guys think? Is it possible?
Thanks guys,
-John
front mount? I assume yes because you will have to run coolant lines to that turbo, I think it is a little small, and i think you would better benefit from a smaller ar and larger turbo if you are most concerned with spool time. Just my first idea, although I think the turbo will get you to your HP goal.
Ohh and this is what your really looking for: http://www.projectrpm.com/nelsonraci...600hp_RX7.html
Last edited by Super Slow SS; Apr 13, 2009 at 04:34 PM.
Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
Likes: 0
From: clemson / charleston SC
I blew a few of them up... turns out they work great in theory... but as soon as you start with the power adders they go to sh#$. Anyway, I couldn't bring myself to sell the car, it is just too sexy so I looked into the LS1/T56 swap and I was sold.
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Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
Likes: 0
From: clemson / charleston SC
The 1.03 is the biggest turbine that I can find for the gt35... do you think that will be enough? I know it is not the most efficient, but I am willing to give up some top end for spool time. I feel that the gt35 will be more than capable of reaching my power goals, I just want to make sure that it can do so a reasonable boost level (8psi or so).
thanks again for the input guys!
-John
thanks again for the input guys!
-John
I know they make the 35r in a 1.06 as i plan to run 2 of them. And if you want to make that kind of power with that amount of boost, people seem to have good luck with the T76 turbos. I know 35rs love boost and love to be spun to make there power. i know its only on a 2.4 liter but look at the evo guys they spin them to over 30 pounds but make great power. and a stock ls1 will not like high boost at all. Im not saying that a 35r wont reach your goals under that boost level, bc most guys dont take that route bc they can run a nice 76mm for less money than a 35r and have been proven to make 500 to 550 easy to the wheels especially through a stick car at the boost level you are looking to run.
Last edited by z28adiction; Apr 13, 2009 at 09:37 PM.
Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
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From: clemson / charleston SC
I will definitely be using an intercooler. I will be using a large bar and plate front mount with a 2.5 in inlet, and a 3 in outlet.
TECH Addict
Joined: Jul 2005
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Too small. That's a 61 mm turbo. Most folks say a 76 mm is too small for the ls1. Plot it on the compressor map and you'd see that it's in choke and <<60% efficient, which equates to high IAT's and lots of exhaust pressure. Consider at least a 70 mm turbo.
Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
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From: clemson / charleston SC
ouch! thanks for the info though... exactly the stuff I wanted to know though. So on that note... what would be the smallest GT series turbo that can be used? GT37? GT40? and what a/r am I looking at?
TECH Addict
Joined: Jul 2005
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The smallest I would consider would be a GT4094R. At 8 psi boost on an LS1, it's about 65% efficient and not in choke.
Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
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From: clemson / charleston SC
TECH Addict
Joined: Jul 2005
Posts: 2,153
Likes: 3
Looks good-ish. Definitely go with the largest AR available. The GT40 is borderline too small so exhaust pressures will be high to begin with. The largest AR will help bring that down.
Thread Starter
Staging Lane
Joined: Aug 2006
Posts: 94
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From: clemson / charleston SC