what if u get eh ex ecu, and pot and polish the ex IM, and place the prelude top end on it...to make it twice as beneficial....but i guess u are right, to each his own.
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inner bore diameters of TBs: ( I measured them)Originally posted by urbanrunner
more then lil,ely if u have an ex u already got the dual runners, so it won;t help much, but if u have a a1 or a4 engine the dual runners could really help your performance matcht the ex's stock hp, but if you put an h23 top end of the a6 bottom end then you go tmore air coming in, i think the a6 tb is like 54mm, and the h23 tb is like 64 or 68 mm.....more air is good on an all motor setup
F22a6 TB = 60mm
H23 TB = 62mmComment
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Man, this dual runner thing is out of control. Anyways, take a look at the actual intake manifold from F22a6 or any dual runner setup. Now notice where the flaps are and where the ones that are always open? Do you notice the different geometry for the runners & why one is closed at lower RPMs vs open at the higher RPMs?
some food for thought...
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what are you implying? they do nothing?1991 JDM Galant VR-4Comment
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I think he is implying the obvious thing that most people already know. Long, skinny runners will give you more torque for the low end, and the wider ones will give you more horsepower for the top end. So they open and close so you don't lose as much power in certain parts of the rpm range.
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most people don't know that though....but u get the idea....alot just jump on the trainOriginally posted by Fearit22
I think he is implying the obvious thing that most people already know. Long, skinny runners will give you more torque for the low end, and the wider ones will give you more horsepower for the top end. So they open and close so you don't lose as much power in certain parts of the rpm range.Comment
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