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Need to upgrade TB?

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Old Sep 28, 2014 | 10:37 AM
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Default Need to upgrade TB?
How important is it to upgrade the intake and move up to a 90mm LS3 TB. I will be running a single 76mm turbonetics turbo, current TB is the stock 78mm? Engine is a L33 5.3. I am looking for fairly low boost. Will it make any difference on such low boost say 10-12?
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Old Sep 28, 2014 | 10:44 AM
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I'm making just over 600 at the wheels on 8#'s with a LS6 intake and bone stock throttle body.

What intake and TB combo are you running now ?
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Old Sep 28, 2014 | 12:48 PM
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I am running a Pro-comp 96mm LS6 intake. The TB is a stock 78 off the donor engine. I purchased the intake new on eBay for less then I could buy a used LS1 intake. Intake was 143.50 shipped. I can get a Delco LS-3/7 TB 90mm for $136.99 but if it will make no difference, I will spend the money elsewhere.
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Old Sep 28, 2014 | 02:55 PM
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Originally Posted by fuzzyjk
How important is it to upgrade the intake and move up to a 90mm LS3 TB. I will be running a single 76mm turbonetics turbo, current TB is the stock 78mm? Engine is a L33 5.3. I am looking for fairly low boost. Will it make any difference on such low boost say 10-12?
None whatsoever other than making your wallet lighter.
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Old Sep 28, 2014 | 08:33 PM
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Thx for the advise. I'll keep the 78.

Jim
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