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twin mp70 setup. question about which a/r to get.

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Old 02-16-2010, 01:37 PM
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Default twin mp70 setup. question about which a/r to get.

i have a 402 9.5cr with l92 heads from sdpc. im about to buy some mp70's but i have no idea what a/r to get. i was looking at the .68's is that going to be to small? my cam is a epp forced induction cam.

thanks
Old 02-16-2010, 02:17 PM
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They will be just fine with those heads, as you will have trouble with sealing them up before exhaust back pressure is ever an issue.
Old 02-16-2010, 03:27 PM
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I'm running the .68's on twin 66's with a 403 and it's way more capeable of what myself or the car can handle. 7 psi Spool up is fantastic and no dropoff that I can feel up to 6,200 rpm.
Old 02-16-2010, 03:55 PM
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cool thanks. im runing arp head studs with ls9 head gaskets so hopefully it can handle some boost.
Old 02-17-2010, 06:21 AM
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i am using twin TC70's on a 441 LSX 9.5 comp using .81 or .82 a/r housing on a street car. should spool instantly.josh at kentucky turbo is finishing the kit this wk.

Last edited by jeremym; 02-17-2010 at 06:36 AM.




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