Which intake for 90mm tb?

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Nov 16, 2010 | 08:37 PM

95killerz

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From: Newton, MA

Which intake for 90mm tb?

I've got an edelbrock 90mm tb from an old project. I'm wondering which intake I should use. I was going to go with a fast intake but recently saw the TPIS ls6 with the 90mm opening. open to all suggestions will be full bolt ons heads and cam in spring

Nov 16, 2010 | 08:40 PM

EricD

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From: Quebec

What is the TPIS ls6, eric

Nov 16, 2010 | 08:44 PM

Darkman

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From: Spring, Texas

I have used a TPIS 90 (resnouted LS6) as well as a FAST 102 on my LS6, both with a 90mm LS2 TB.

I would put it on a FAST 102 if it will fit and seal.

Nov 16, 2010 | 08:51 PM

garygnu

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you can find a used fast 90/92 intake for $650.I believe there are some alum intakes your TB will work on for $399 new.

Nov 16, 2010 | 08:56 PM

EricD

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From: Quebec

how do you get a fast 102 on an ls6 intake or a 90 mm

Nov 16, 2010 | 09:14 PM

Darkman

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From: Spring, Texas

Quote:

Originally Posted by EricD

how do you get a fast 102 on an ls6 intake or a 90 mm

Let me clarify- I have used two setups on my LS6 motor. One setup was the TPIS 90mm intake manifold with an LS2 90mm throttle body. I then switched to a FAST 102 intake manifold and used the same LS2 90mm throttle body.

Of the two setups, I believe the second one is better.

Nov 16, 2010 | 09:22 PM

EricD

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From: Quebec

Ok i understand , so tpis can resnout an ls6 intake to fit a 90 mm tb , is it worth it, wouldnt the plenum volume just not be there , eric

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Nov 16, 2010 | 09:40 PM

Darkman

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From: Spring, Texas

Quote:

Originally Posted by EricD

Ok i understand , so tpis can resnout an ls6 intake to fit a 90 mm tb , is it worth it, wouldnt the plenum volume just not be there , eric

Well I did pick 15hp using the TPIS which is not a bad deal if you already own an LS6 manifold to serve as a "core" (Cost about $350 for the mod). If you have no manifold the TPIS cost is $850 which makes the jump to the FAST 102 intake a much better deal. The FAST 102 does have more plenum.

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Nov 17, 2010 | 07:11 PM

95killerz

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From: Newton, MA

thanks for the info. i'll prob. go with the fast 102 at least there is more room to go with a bigger tb later if for some reason a 90 becomes to small

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