Made 617 RWHP on GT42 (non ball bearing)

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Old 07-07-2007, 03:29 AM
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I left the dyno making 617HP (std) and 601 (sae) on 32psi with a GT42 (non ball bearing). I still have to make a few passes since it's rich on the higher rpms and as I get on boost but I'll make those smaller adjustments at the track.



Air fuel - 11.1 - 11.4 (as per the FJO on the TEC unit)

Air temps - went up to 130 (90deg out)

Duty Cycle - 83% (4x1680cc injectors)

Full boost at around 5800-6000rpms



I am still missing some HP for that boost, I'm running the smaller midmount greddy intercooler, it might be that since the temps are higher than average? The motor is streetported (RP template) but the irons only, I did not port the runners so it might be that. I'll worry about that later since I want to apply this and see what happens.



Thanks to Tony from T and R Racing for his late hour dyno time and all the assistance. Thanks to Crispeed and Dee for the troubleshooting help! Crispeed gave me a list of things to check and as usual, he was right



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Old 07-07-2007, 07:35 AM
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Which combination of compressor wheel and exhaust housing do you have Anthony?
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Old 07-08-2007, 11:05 PM
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Originally Posted by TYSON' post='877306' date='Jul 7 2007, 08:35 AM
Which combination of compressor wheel and exhaust housing do you have Anthony?


76mm front and a 1.01 back.



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Old 07-09-2007, 03:32 PM
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anthony that chart looks pretty good, i would have thought it to be laggier actually....
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Old 07-10-2007, 10:29 AM
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Originally Posted by vosko' post='877475' date='Jul 9 2007, 04:32 PM
anthony that chart looks pretty good, i would have thought it to be laggier actually....


Yeah, it actually is laggier between shifts. Still have some driving issues to work out.



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Old 07-10-2007, 02:01 PM
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Impressive.
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Old 11-13-2007, 12:35 PM
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Vid of 10.6@121 pass lifting...



http://www.rx7s.com/tandrracing/movieclips...21_rearview.wmv



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