LS6 intake question

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Dec 15, 2008 | 09:34 AM

wmcfa

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LS6 intake question

What is the largest throttle body the LS6 intake can hold. Can it hold an 85 mm?

Dec 15, 2008 | 02:42 PM

SOMbitch

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Quote:

Originally Posted by wmcfa

What is the largest throttle body the LS6 intake can hold. Can it hold an 85 mm?

Unless you get the snout changed by TPIS it is the stock 75mm. Just get it ported by sponsor.

Dec 15, 2008 | 10:23 PM

CriminiSS

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you can put a 85mm TB on an ls6 intake. I have one for sale if your interested.

Dec 16, 2008 | 10:19 AM

wmcfa

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Quote:

Originally Posted by CriminiSS

you can put a 85mm TB on an ls6 intake. I have one for sale if your interested.

how much?

Dec 16, 2008 | 10:50 AM

teke184

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you can put a larger tb on, but the mouth of the intake is still only 75mm or so.

so that added size is pointless.

kindda like putting a 3" inlet muffler on, but a 2.5" outlet

Dec 16, 2008 | 04:44 PM

DoubleTapDrew

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I measured the mouth on the LS6 intake and it's 75mm, so that seems like a recipe for turbulence unless you port the LS6 inlet

Dec 16, 2008 | 04:47 PM

Mean87SS

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Just port the stocker...

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Dec 16, 2008 | 09:45 PM

SSTYCOON

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shaner S3

Dec 16, 2008 | 10:34 PM

#10

LS1-450

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Quote:

Originally Posted by teke184

you can put a larger tb on, but the mouth of the intake is still only 75mm or so.
so that added size is pointless.
kindda like putting a 3" inlet muffler on, but a 2.5" outlet

It's not pointless. Using an 85mm in front of a 75mm opening shortens the length of the 75mm restriction. This reduces the pressure drop through the area. Further, it acts as a funnel into the intake, gradually increasing air speed from the filter to the runner.

wmcfa,
Most 85mm TB's are sold w/ adapters & easily connect to the LS6 manifold. Summit sells a good kit @ a good price, if the offer made in this thread doesn't work out for ya. Good-luck

Dec 29, 2008 | 04:33 PM

#11

CriminiSS

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LS1-450 is right. A larger TB also increases throttle response. Pming the OP.

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LS6 intake question

LS6 intake question

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