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Some of these guys are running 160mph+ in street cars man...

i know this, supra forums vids n youtube r my best friend lol

they even do it in fullweight cars, 28x9 or 10.5 slick "with" IRS and H-pattern stock 6 speed box

alot of them were running the garrett gt47-88 but not alot are leaning towards the precision 7175 and 80mm range turbos

and thanks pj, were i get htis 6766 bolted up ill let the figures speak for themselves, i dont see why it wont make 700whp on conservative boost and e85

  • 9 months later...

my brother has a 62XX on his r34 GTR

made an easy 350kw on 98 with 20psi... we didnt push further on 98 as the bottom end is stock

currently sitting on 420kw with 21psi... this was with 65% ethanol in the tank... its up to 84% now so will be going back on the dyno and pumping another 5-8psi through it.. should crack 450kw quite comfortably. Turbo can definitely make 500kw on e85 but the motor is stock so I don't think its going to get pushed that far

in terms of response... from my personal experience I wouldn't exactly call it street friendly.

There is definitely lag... I don't see positive PSI until 3.5K ish RPM... compare that to my -9 where i've got 5psi by 2.5K ish....

Although once 4.5K RPM comes around all hell breaks loose... they pick up boost so quick so the power delivery is just one big rush...

its a mental setup... but if i was to do it on mine I'd go one size smaller so I could feel some boost during daily driving...

the cam gears still need to be adjusted so lag will come down a bit

Edited by usmair

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