Ported L36 Throttle Body??

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Mar 13, 2008 | 10:43 PM

#11

TheDude

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Joined: Sep 2007

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From: Saginaw, MI

Quote:

Originally Posted by Barry

Don't forget to post the pics of those plugs once you get them out! Several of us are waiting to see if the mod on your runners has had any effect on them.

ohhh. The suspense...................

lol....

Mar 14, 2008 | 12:35 AM

#12

agrazela

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Joined: Jan 2007

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From: San Diego, CA

Quote:

Originally Posted by TheDude

Ryan from GM Tuners recommended going with a ported L36 TB rather than a L67 TB because he said the L67 TB doesnt seal properly.

That'* because of the gaps in the back and the slightly different offset of the mounting holes, both fixable with epoxy (see the thread referenced earlier).

Quote:

Originally Posted by TheDude

Why a 99+ L67 TB??? Whats different with the 98 and older?

The L67 TB has a larger bore at the butterfly plate than the L36 (70mm vs 65mm). A '99+ TB does not have a huge "pillar" in the center for the MAF sensor. It'* better stock than a 98 and earlier, and would be easier to port if you go that way with it.

If you do decide to go with a ported L36 (instead of a stock or ported L67), you still want a 99+ because of the MAF pillar thing.