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Originally Posted by CALL911  Nick, how much lag will that 88mm Turbo give you? I am just curious. I was thinking about a 76mm turbo for the Supra I don't have. With that I should see full boost at about 5,000 RPM giving me a whopping 2,000 RPM of usefull full boost before redline. Anything bigger than a 76mm turbo and the lag just gets worse. |
It should be at full 20ish lbs around 4000rpm according to Jose and DrTurbo. They had one on an LS2 with a built and stalled auto and it was at full boost by 3200. What gear I decide to go with in the Cobra rear should really make a difference in how it spools as well.
Depending on your a/r and rather you go journal, ceramic, or DBB will have a huge impact on your spool up time with a 76. You'll be building the head on the Supra correct? You should be able to spin it to more than 7000 RPM then. From what I've noticed also, 68-76mm turbo's seem to be perfect for Supra's. Before I bought the 7 I was planning out a Supra build and was basing it off of this car:
spool-up time is amazing, and it hooks and books.
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1993 Mazda Rx7 - Twin Precision SC60s, 370ci LQx, Lingenfelter 317s, JPH Cam, McBride T56, McLeod Twin Disc, Cobra IRS
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There is a very fine line between something being "bad ass" or it being "retarded". I fear I may have crossed that line...
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