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Porting and polishing a h22a inlet

Posted: Mon Jan 14, 2013 11:01 pm
by Madhatter81
Hi guys I'm thinking of having a go at trying to maximise the amount of air restriction I have in my inlet manifold
Has anybody got any tips ???? Pls

Posted: Mon Jan 14, 2013 11:04 pm
by NafemanNathan
Awwww :facepalm: There was a guy who did a seriously good port and polish to his ATR manifold, but I can't for the life of me remember his name!

Basically he cut the back off so he could get inside it with ease and then had the back welded back on.

Posted: Mon Jan 14, 2013 11:13 pm
by NafemanNathan

Posted: Mon Jan 14, 2013 11:32 pm
by nitin_s1
As you want performance why don't you get an ATR manifold as it has single runners! Then try to port and polish that!!

I will have one for sale soon. :twisted:

Edit: Nafe's post shows an ATR manifold like I said. ;)

Posted: Mon Jan 14, 2013 11:34 pm
by NafemanNathan
nitin_s1 wrote:As you want performance why don't you get an ATR manifold as it has single runners! Then try to port and polish that!!
Because then he'd have to go for a full on tune which isn't cheap to reap the benefits and not make a performance loss ;-)

Posted: Mon Jan 14, 2013 11:51 pm
by nitin_s1
Sorry :(

Posted: Mon Jan 14, 2013 11:56 pm
by NafemanNathan
Just thought it would be best to give all the information just in case he didn't already know :)

Posted: Tue Jan 15, 2013 6:09 am
by nitin_s1
NafemanNathan wrote:Just thought it would be best to give all the information just in case he didn't already know :)
:rock:

Posted: Tue Jan 15, 2013 7:10 am
by Madhatter81
Thanks guys think I'm gonna have a go at cutting it

Posted: Tue Jan 15, 2013 8:50 am
by 106pete
You don't need to cut the standard prelude inlet to get at the important bits, just take the top off and port the holes down through the iabs.

The lower half of the mani can be abit more work to get off so I've only done the top to start with, and if your thinking about it try not to remove the tb butterfly it's a pain to get it sitting perfectly again and sticks.

I have one in work all done if you wanna buy it ;-)