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Yeh seems to be running clean at the top but just doesn't have the mph that it should. I'll be getting off my ass soon and making some changes and getting the tune looked at by a workshop that actually knows how to tune power FC's( PFC was put in by the previous owner and was tuned by a certain shop with a big v8 back ground) .

It's done 270rwkw on unigroups dyno at 1.2bar I never got a printout of the run but the guys there seemed to think that the curve wasn't too bad at all . hopefully after the tune is looked at , cam gears dialed in and a couple of exhuast restriction removed hopefully should be on the money . I'll let you know how I go , is your GTR here yet?.

Thanks for the response. I showed my dyno print out to another tuning shop

They suggested that my turbo is runnig out of puff in top rpm.

However they were suprised with how soon the power curve shot straight up for a standard turbo, They reckon the custom plenum i had made up is do its job perfectly

Finally they said if the turbo keep going the way it should of, I would have clocked 200a.t.w

Oh well time to get a bigger snail in there

torque also plays a big roll in low ET's specially at the first half of the track . This is why as mentioned above you see some of the v8 boys running low ET's  in relation to there mph .

Hi7heavn, you should add traction and aerodynamics as other variables:cheers:

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