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Quick exhaust port question.

Posted: Wed Aug 31, 2011 9:54 pm
by NitroDann
1.8s.. They have oval exhaust ports like B6s? Or round?

Thanks,
Dann

Re: Quick exhaust port question.

Posted: Wed Aug 31, 2011 10:42 pm
by NitroDann
No one has had a manifold off before?

Dann

Re: Quick exhaust port question.

Posted: Wed Aug 31, 2011 10:49 pm
by slug_dub
Oval. :)

Re: Quick exhaust port question.

Posted: Wed Aug 31, 2011 11:01 pm
by NitroDann
Cheers mate :D

All of them?

Reason I ask is ive been looking at many a turbo manifold and they all seem to leave the steam pipe round at the port.... So you're sure all BPs are oval?

Thanks heaps,
Dann

Re: Quick exhaust port question.

Posted: Wed Aug 31, 2011 11:08 pm
by slug_dub
Pretty sure all BP's have oval ports.

Don't know much about turbo manifolds I won't be able to help ya with why those are the way they are :mrgreen:

Re: Quick exhaust port question.

Posted: Wed Aug 31, 2011 11:15 pm
by NitroDann
If all BPs are oval, well then its because manifold builders are lazy.

Ill be building a log manifold (or 3) in the coming month or so. And I just wondered.

I think australia wants a manifold with a T2 flange, a nice sized dump pipe, and the ability to run air con and ps.

Dann

Re: Quick exhaust port question.

Posted: Wed Aug 31, 2011 11:53 pm
by Locutus
yeah definitely oval

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 12:04 am
by NitroDann
thanks guys

Dann

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 7:44 am
by rob323
BP from my NA8 - oval ports.

Image

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 9:09 am
by mazdatenfive
Here is an NA8 manifold, does that help and it's for sale.
MX-5 NA8 Exhaust Manifold7.JPG

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 9:36 am
by NitroDann
That looks identical to my stock na6 manifold, in every way...?

Dann

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 10:07 am
by slug_dub
Well they didn't reinvent the wheel on that one... except its probably being slightly longer. :P

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 10:37 am
by NitroDann
..Fair enough.

I cant wait, wont be long now until I have some tig welded turbo manifold glory :D

Dann

Re: Quick exhaust port question.

Posted: Thu Sep 01, 2011 1:46 pm
by and1
Maybe you can mass produce these too :D