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92mm TB to a ls6 intake?

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Old Oct 26, 2012 | 07:04 PM
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Default 92mm TB to a ls6 intake?

i have both the intake and a throttle body, i was wondering if there were a way to bolt the 2 together, i heard rumors about an adapter that someone makes, but had no luck finding it.

would i be better off just leaving the stock size throttle body?

i really dont want to spend 900 on a fast 92mm intake.
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Old Oct 26, 2012 | 08:02 PM
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TPIS cuts the snout off an LS6 intake and attaches a bigger one with the 4 mounting holes. Not cheap though.
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Old Oct 26, 2012 | 08:47 PM
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This is the adapter you're talking about. Made by CBM









You'd be better off either sending a stock TB to Mark Shaner, or ponying up and getting the FAST. The size of the TB isn't going to change anything. That adapter alone is 79 bucks.

A TPIS modified LS6 is 350 I believe, and that's the price to send in YOURS. You're better off selling the LS6 intake you already own and finding a 92 used. Hell, yesterday there was a brand new 92 in the classifieds for 750 shipped.....
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Old Oct 26, 2012 | 10:56 PM
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https://ls1tech.com/forums/parts-cla...t-intakes.html

https://ls1tech.com/forums/parts-cla...ttle-body.html
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Old Oct 27, 2012 | 09:56 AM
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good point. it was moreso just the fact that i already own the 92mm throttle body, so i figured, why not use it. but if its going to more cost effective to pick up a used 92mm intake, then obviously ill do that.
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Old Oct 28, 2012 | 06:39 PM
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would i be better off running a vic jr efi intake with a low profile elbow?

if there is no gains, i would rather sell off that stuff and just keep the ls6
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Old Oct 28, 2012 | 07:02 PM
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Imo, the only logical way to run a victor Jr n/a is with a 4150 tb, not an elbow. Elbows kill flow and starve the front cylinders. There are people makinp good power with elbows, but not like they would with a 4150.

I would hang on to the 92mm tb and pick up a used stock tb for now. Then if/when you move up to a fast, you already have it. I don't see it hurting anything to run the adapter, but you certainly won't gain anything noticeable unless the stock tb is choking your plentm.
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Old Oct 28, 2012 | 10:10 PM
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The only gain you may see, which may fool your mind butt dyno, would be the throttle response. And that's it. I'd bet that a dyno would show maybe 3-5hp difference. Not worth it, IMO.. The TB Bypass frees up more power than that.

Save for the FAST 92.
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