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

Porting service ?

 
Old 04-09-2019, 08:31 PM
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Eduardo L98 1991
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Default Porting service ?

Hi,
please help me with this:

I recently bought a superram that I want to port
could somebody let me know who can do this ?

only runners and plenum, tpi big mouth is already ported but the guy who made this job is not porting more.

thanks in advance
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Old 04-11-2019, 12:14 AM
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aklim
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Came from Lingenfelter so it stands to reason that they have the program to port it.
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Old 04-11-2019, 09:27 PM
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cuisinartvette
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The plenum doesnt need any work unless you hack up the runners & for most 350s its a waste of $. What are you building?
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Old 04-12-2019, 10:39 PM
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Eduardo L98 1991
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350, 195 afr, 280xfi cam
big mouth base already ported to 195cc
all the good dyno number that i saw and read about this combo have the runners and plenum ported , good for 5800-6000 rpm
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Old 04-13-2019, 11:22 AM
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DMITTZ
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I doubt you need to port the runners/plenum, just use a gasket and port match them to the base. The super ram plenum and runners should have no problem supporting a 350ci to 5800-6000 rpm with those heads.

My super pulls to my 6000rpm rev-limiter on my 355ci no prolem. If it was a high-winding 383 you night consider porting but for a 350 you should be good to go with just a little port matching of the ruuner to base.
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Old 04-13-2019, 11:40 AM
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confab
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I was really impressed with Chad Spier and the thread he did a while back.

Wish he was a forum sponsor and would cut us all "corvette forum buddy" deals.

That guy knows what he's doing.
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Old 04-13-2019, 01:51 PM
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cuisinartvette
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Id have to search for pics but have butchered those pretty good to the point where the entry from plenum to runner was 2x2. Waste on a 350 though and a chit ton of noise/time.
If you want to improve it work on the inside turn a little but dont expect to feel anything;they really arent a restriction (flowed them on bases, by themselves, w/heads etc.

Last edited by cuisinartvette; 04-13-2019 at 01:52 PM.
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