C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Porting your runners?

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Old Jan 22, 2007 | 01:27 PM
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Default Porting your runners?

I have searched and found out you can port your plenum. What about taking a dremel and porting out your runners? Would this be benifical or hurt performance? Am I risk tearing up the runners? Thanks. This is just a thought though.
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Old Jan 22, 2007 | 01:34 PM
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Wont hurt anything, do it. You can even go so far as to siamese them.
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Old Jan 22, 2007 | 02:08 PM
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But, how will you port the middle of the runner without cutting it open? There's some porting pix under my avatar, my Corvette pictures.
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Old Jan 22, 2007 | 08:07 PM
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Originally Posted by vader86
Wont hurt anything, do it. You can even go so far as to siamese them.
Whats "siamese" mean. Will it help?
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Old Jan 22, 2007 | 08:48 PM
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It's like siamese twins. Joined together.
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Old Jan 22, 2007 | 09:01 PM
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Haven't done it on mine, but have read here that there is not a noticable difference in 1/4 mile times.
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Old Jan 22, 2007 | 09:13 PM
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can it be done on a CFI?
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Old Jan 22, 2007 | 09:17 PM
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Originally Posted by Corvette for life
can it be done on a CFI?
Nope, sorry.
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Old Jan 22, 2007 | 09:20 PM
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Originally Posted by RRT vette
Nope, sorry.
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Old Jan 22, 2007 | 09:24 PM
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Originally Posted by RRT vette
Nope, sorry.
Well if its not going to be noticable I wont waste my time with it. That and porting the plenum....Free mods dont mean much.....
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Old Jan 22, 2007 | 09:35 PM
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http://forums.corvetteforum.com/show....php?t=1596972
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Old Jan 22, 2007 | 11:44 PM
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Originally Posted by NGK
Well if its not going to be noticable I wont waste my time with it. That and porting the plenum....Free mods dont mean much.....
You pretty much get what you pay for.

Some of the aftermarket intake parts have crappy castings and lots of extra metal, so porting them can be productive.
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