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What AR ratio for a 428" LSX

Old 10-26-2008, 10:52 PM
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Default What AR ratio for a 428" LSX

Hey guys, Single turbo LSX 428" what AR ratio would be proper? Thanks for the info, Ryan
Old 10-26-2008, 10:55 PM
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Depends on the turbo, turbine wheel and the amount of power you want to make.
Old 10-26-2008, 11:06 PM
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Something between a Precision PT94 and 101. And its just a rediculas street car but I only want to buy a turbo once so id rather go a touch large and deal with the slower spool.
Old 10-26-2008, 11:15 PM
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the wisest man once said "pick the turbo size you want and go 2 sizes smaller..."

but an even wiser man once said this

"everybody who went turbo, seems to wish they went bigger or with what they orginally planned before the internet told them to "do this size" cause itd be more streetable, not everyone cares about streetable. some people only care about winning.
Old 10-27-2008, 12:28 PM
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Originally Posted by Wants an LS1
the wisest man once said "pick the turbo size you want and go 2 sizes smaller..."

but an even wiser man once said this

"everybody who went turbo, seems to wish they went bigger or with what they orginally planned before the internet told them to "do this size" cause itd be more streetable, not everyone cares about streetable. some people only care about winning.
I love it! The car is pretty much strictly street, No cage so I wont be goin too fast, But I want the power to be there by adding some boost and tune when I decide to rear half it and add a cage!
Old 10-27-2008, 12:39 PM
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Originally Posted by BetMinesFaster
Hey guys, Single turbo LSX 428" what AR ratio would be proper? Thanks for the info, Ryan
Need alot more details....
Old 10-30-2008, 02:57 PM
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What all do we have to know to make the best decision? Ill gather the info today, I need to order a turbo this week yet so I can build some headers..Unless you know somebody who has a PT101 or comprable that is toast that I can use for mockup??
Old 10-30-2008, 03:25 PM
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1.25-1.35, If it were my setup, I'd throw a Precision 101 on that bad boy and call it a day. Shawn @ VA Speed has alot of info from the testing we did on my car and is a precision dealer.
Old 10-30-2008, 03:49 PM
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Thats kinda where I was leaning, I can get a reman G-trim 101 for 1350 shipped, thats a steal to me..
Old 10-30-2008, 03:50 PM
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Originally Posted by BetMinesFaster
What all do we have to know to make the best decision? Ill gather the info today, I need to order a turbo this week yet so I can build some headers..Unless you know somebody who has a PT101 or comprable that is toast that I can use for mockup??
Go with a true Garrett T98 with a 1.32A/R housing and a G-trim turbine. Spool very fast and more then enough to run some 4.9's@150+ in the 1/8th.
Old 10-30-2008, 08:06 PM
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I wanted to go with an ez94 or something of that nature but with the expenses of this build I think im going to have to settle for something cheaper, that was the turn on twith the large precision units, they seem plentifull and really reasonable, I figure ill be stuck with it for a few years before I can uograde to something more high tech, but the price difference will buy alot of parts for this build
Old 10-30-2008, 08:40 PM
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Originally Posted by DrTurbo
Go with a true Garrett T98 with a 1.32A/R housing and a G-trim turbine. Spool very fast and more then enough to run some 4.9's@150+ in the 1/8th.
Can you sell me a T98?
Old 10-31-2008, 09:37 AM
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We carry every major turbo brand in the world.......the Garrett's are what the PTE's are built on. Same turbos......very durable indeed.


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