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Old 05-17-2012, 11:18 AM
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Default ls6 intake
does anybody know what a stock ls6 inlet size is?

i though it was 80mm but im trying to make sure.
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Old 05-17-2012, 03:02 PM
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78 mm
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Old 05-17-2012, 10:23 PM
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i thought that was the ls1 intake with the egr?
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Old 05-17-2012, 10:25 PM
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Originally Posted by 02 reaper z28
i thought that was the ls1 intake with the egr?
both ls1 & ls6 intakes are 78mm ... only difference is the ls6 style intake has no egr ports and most importantly Flows much better.
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Old 05-18-2012, 01:32 AM
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oh ok, thanks for clearing that out.
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Old 05-19-2012, 11:05 PM
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Any power gain to be had by switching to a slightly larger MAF? Like an 85mm MAF?
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Old 05-20-2012, 10:15 AM
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the 78mm intake opening size would be the restriction .most people just get a ported stock TB.you can try to port out the intake opening.
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Old 05-20-2012, 02:23 PM
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Originally Posted by garygnu
the 78mm intake opening size would be the restriction .most people just get a ported stock TB.you can try to port out the intake opening.
So that's the reason people upgrade intakes. What about the LS2? Would I have to switch to a DBW setup?
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Old 05-20-2012, 09:37 PM
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Originally Posted by perf0rmance
So that's the reason people upgrade intakes. What about the LS2? Would I have to switch to a DBW setup?
you can buy an aftermarket 90mm throttle body
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Old 05-21-2012, 12:04 AM
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And not see any gain over the ls6 intake...the ls2 intake in stock form is junk.
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Old 05-21-2012, 01:31 PM
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You'll Only see a few horsepower up top from a LS2 and it's not a direct swap.
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