single GT35R?
#1
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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
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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.
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Ohh and this is what your really looking for: http://www.projectrpm.com/nelsonraci...600hp_RX7.html
Last edited by Super Slow SS; 04-13-2009 at 04:34 PM.
#5
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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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#10
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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
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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; 04-13-2009 at 09:37 PM.
#12
I think a GT35 is awfully small. Even with a 1.06 A/R you'll be pushing that turbo awfully hard, even at 8 psi. If you're not going intercooled (which i think you are), otherwise forget about it.
#13
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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.
#14
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.
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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?
#16
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.
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#18
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.
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