hey guys, i have a little bit of experience with gt2871r's.
i feel from my experience that a gt2871r with t3 .63 ar housing that the turbo gets full boost of 20psi at about 4500rpm, the b16a feels eager to make boost, and on the hightway at 100km/h in 5th gear, full throttle will make boost, and make 10psi at about 120km/h, so overtaking in 5th is no problem. i feel it could make a fine track turbo. unless you need your power band below 4500?? with this set up the car made 240hp on 8psi
i have recently changed to a t3 .82 housing and screamer pipe, and with a little street tuning for fuel and unchanged ignition, the car trapped 124mph up from 120-122. but now the turbo is much less eager to make boost, and requires full throttle in first gear to make full boost. and full boost seems to come on about 1000rpm later which im not sure was worth the trade.
now i have a endyn ported blox manifold optimised for 5000-8000rpm (changed away from victor x which is optimised for 7000-10000rpm) and the car tuned by hi-power racing on there dyno. the car now makes 337whp and makes about 320whp for a few thousand rpm. where as before the new housing and manifold it made 315whp with the power not tapering yet, but much less area under the curve then the new set up.
im hoping to head out and improve on my untuned time of 11.6@123
the rest of my set up if you wanted to know for comparison
-hondata s300
-B16A2
-stock throttle body
-acura gsr cams
-stock porting
-~8.6:1 rollerwave pistons
-eagle rods
-competition clutch lightweight flywheel
-competition clutch stage 3 clutch, which is only rate at 80% more torque then standard(feels same as standard and doesnt slip under power)
-neukin ramhorn a/c manifold t3 flanged
-tial 44mm wastegate
-3in turbo back exhaust
-3in hi-flow carsound cat
-gt2871r with 4in t04e compressor housing, ATP .82 ar t3 v-band housing
-rc 750cc injectors, stock fuel rail and regulator
-pwr 500x300 intercooler
-stock sleves (posted)
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