extrudahone

Engines, Transmissions & Final Drive questions and answers

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jules
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Postby jules » Thu Mar 01, 2007 5:13 pm

And I thought this was some kind of obscure brass instrument :mrgreen: :mrgreen:


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NMX516
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Postby NMX516 » Thu Mar 01, 2007 6:27 pm

I remember reading an article about this process in Fast Fours and Rotaries probably over 10 years ago now...

They certainly gave it a good wrap, and flow testing showed worth while improvements.
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Sean
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Postby Sean » Thu Mar 01, 2007 6:46 pm

This process is certainly the goods on S6 Rx7 manifolds :mrgreen:

Let us know how it goes on teh MX and what it costs you.

Very interested to see the results.
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adamjp
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Postby adamjp » Thu Mar 01, 2007 6:52 pm

Very interested to see the results.


Yep me too. Heard good things, but believe the cost is quite high for the return. Ford used it on the UK market Mondeo V6, allegedly added HP (<10 though).
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STV
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Postby STV » Thu Mar 01, 2007 7:12 pm

i think i remember reading the same article!

Can even be done to \"Hi-Flo\" turbos aswell.

got any rough indication of cost?

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Sheck
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Postby Sheck » Wed Mar 07, 2007 4:23 pm

that looks like a pretty good improvement!!! especially the evening out of the cylinders. Cant wait to see the dyno figures!

Might be a good upgrade for most cars, as it should improve throttle response a bit on the N/A's too.

Hey i see in your sig your comming up to ipswich?! You'll have to drift at QR with us :mrgreen:

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adamjp
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Postby adamjp » Sat Mar 10, 2007 5:46 pm

Something that you may need to consider is that the stock AFM on the B6 is allegedly only good for 165cfm. If this is still fitted to your engine and the limit is true, flowing the manifold better will make no real difference.

Flowing the head better will make a difference, but you will get to the 165cfm quicker.
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timk
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Postby timk » Sat Mar 10, 2007 11:30 pm

If you have access to a stock manifold after you have had the head ported it would be interesting to see the results.
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Okibi
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Postby Okibi » Sun Mar 11, 2007 1:22 pm

This is a great thread, i'm looking forward to seeing more results.

Have you looked at Matty's article on building a CAI? I think he had tested the rest of the intake/AFM/airbox to find out each restriction.
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Okibi
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Postby Okibi » Sun Mar 11, 2007 7:58 pm

I would like to get it done to my NB8A intake, it would be interesting to see the bench tests between the two OEM intakes.
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Postby adamjp » Sun Mar 11, 2007 8:24 pm

um since i don't have a afm anymore i don't have that problem


I thought that might be the case, but was unsure.

Agreed, AFM no longer a limitation. :D
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Postby Sheck » Mon Mar 12, 2007 7:44 am

was the throttle response improved at all? is that kind of power what most stockish mx5's pull?

cheers for letting us know how it went!!

Dave

PS mx5 tandem drift will be awesome!!
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