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Old 08-21-2013, 09:42 AM   #11
GhostTribute
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Quote:
Originally Posted by joecicalese View Post
Just a 65mm Focus Central TB. I haven't run it yet but I have the TB matched up to the intake. The outside of the intake is coated with epoxy to add strength.
That port job is larger than 65mm. I just did mine this past weekend and I have at least 2-3mm of gasket surface left around the entire opening. Adding Strength to the outside may not stop leaks! Best of luck with it though. it's never a good thing when you have to start using RTV sealant to stop vacuum leaks around a throttle body.

With any port matching it is a definite plus to precisely match the ports being put together. To go hog wild and port until there is no material left around the port sealing area is not helping anything.
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Old 08-21-2013, 09:46 AM   #12
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Originally Posted by GhostTribute View Post
That port job is larger than 65mm. I just did mine this past weekend and I have at least 2-3mm of gasket surface left around the entire opening. Adding Strength to the outside may not stop leaks! Best of luck with it though. it's never a good thing when you have to start using RTV sealant to stop vacuum leaks around a throttle body.

With any port matching it is a definite plus to precisely match the ports being put together. To go hog wild and port until there is no material left around the port sealing area is not helping anything.
Thanks for the tip, I'm gonna look at it a little more closely tonight.
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Old 08-21-2013, 09:52 AM   #13
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What are you using for a TB to IM gasket? Or do the CFM throttle bodies come with a gasket?

I bought my 65mm BBK TB used so I had to make my own gasket. I traced the throttle body base openings onto a piece of 1/32" Felpro fiber gasket material and cut it out. Works great! It would definitely help seal that up if you don't already have a paper gasket.
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Old 08-21-2013, 09:59 AM   #14
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What are you using for a TB to IM gasket? Or do the CFM throttle bodies come with a gasket?

I bought my 65mm BBK TB used so I had to make my own gasket. I traced the throttle body base openings onto a piece of 1/32" Felpro fiber gasket material and cut it out. Works great! It would definitely help seal that up if you don't already have a paper gasket.
I got mine used and scooped this last time I needed a few things from CFM. Worth the 5 bucks to have it match up I think.
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Old 08-21-2013, 10:06 AM   #15
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Definitely worth the $5.
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Old 08-21-2013, 04:21 PM   #16
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Thanks I appreciate it.... I kno it doesn't really NEED to be ported on the head side but if I have it off the car I just figured I would just port it... Is there anyone who has a dyno run of both with and without it ported to see if it makes a lot of difference? I def will do the TB side... If it doesn't help there is no sense in me doing it ( on the head side)....
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Old 08-21-2013, 09:05 PM   #17
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That one picced job is way too thin, gasket sealing is going to be a problem there. Crushing with paper gasket will crush down the thin edge, it has no strength being that thin.

If intake done at head surface and head not, well, a mistake. You want if anything the head slightly bigger than intake.
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Old 08-23-2013, 05:43 PM   #18
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Still looking for pics of head side... Or possibly someone who has measurements of the head ports so I can port to match them... Thanks in advance...
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Old 08-23-2013, 06:01 PM   #19
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Port match both the manifold and head to the gasket opening.
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Old 08-23-2013, 08:55 PM   #20
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I won't be taking the head off... Doing this all while the heads on the car... I thought the manifold gaskets were a oring type seal and not a flat gasket?
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