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Intake track porting

 
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cmetuning



Joined: 06 Aug 2005
Posts: 6
Location: Central Pennsylvania

PostPosted: Thu Aug 11, 2005 4:44 am    Post subject: Intake track porting Reply with quote

So, I have started autocrossing and I run my 87 Rx-7 in csp. In the rule book it says you can port your intake runners one inch in from the ends. I was intrested in match porting the intake runners to each other and leaving the motor alone. Are their any real improvements over stock? Also would a extrude hone intake make any inprovements? (I am sure this is not legal in the class I am running but the thought seemed to be relevent.) (All mods would be to a 87 intake.)
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GTChris



Joined: 13 Jul 2005
Posts: 13
Location: Portland, OR.

PostPosted: Tue Aug 16, 2005 8:00 am    Post subject: Reply with quote

One thing you could do is to convert over to S5 intake manifolds, however there are a few small mods to be done, Includind sensor swaping, a bit of port matching as well. The S5 manifold is far beter than the S4 and if you did this mod the tech's would never be able to tell what you have done.

Do you have the PR 6 port sleaves?
biggest gane for $$ spent.


Chris...
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