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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

 
 
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Old 05-02-2010, 04:10 PM   #1
vex
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Default Constructing your own Intake Manifold

I'm looking to build my own intake manifold. I've done the numbers, and everything but I'm getting snagged up on the "easy" stuff: namely, I'm looking to go to a 90mm throttle body with a single venturi, and I have 2.5" piping. So in other words, I need to go from 4 inches to 2.5 inches. I looked on ATP but didn't see any transition pieces like that. I would like to do this as smooth as possible; so that would mean on single transition... Which lead me to this: Link

Some other throttle bodies I'm thinking of include a 75mm Venturi Sized or a Q45 TB. It really comes down to being able to plumb and run everything, while balancing the effects of the size of the throttle body. So... Suggestions?






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