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I've driven 2 years ago 6000miles with ~300whp and last summer 3500miles with 530rwhp on my 7m-gte with spec stage 3+, never slipped. It's a very streetable clutch, not too far from the stock clutch in daily use and works well even in traffic.

Hi, thanks for all the answers, they've been most helpful to me as I'm quite new to all this stuff :) Anyway, we today retorqued the head bolts just to see if they were loose. There's the first mistake made not retorquing the head. Most of the bolts we're loosened 1/8 and then to get the proper...

Had to look more into this, the v-power is rated minimum of RON 99 and MON 87. I guess in USA you use RON + MON, so the v-power would be the average between RON and MON (87 + 99)/2 = 93. So it would be 93 pump gas.

Haven't done that. I'll check that before tearing it all down. I started wondering about the flactuation of the map sensor, maybe adding the filter available in the ems (I guess it averages N samples of map reading) or placing the map sensor differently would result also in more stable map...

I checked my logs from the dyno, actually running around 13 degrees of advance at full boost, but there's minor flactuation present (probably because the map sensor reading flactuates also), but at idle the timing is very stable and the ems is most likely reading the cps correctly. We also...

How to properly retorque the head studs? One by one? Or loosen everyone of them at once and then retorque? I guess it wont help at this point as I already hear burbling behind the dashboard, but I'll give it a try :)

I'm running AEM EMS, tuned to 11.5 afr at full boost, dual walbros, larger fuel lines, 750cc rc injectors. ~8cr, at 24psi advance is about 10 degrees. Using Shell v-power which is rated 99 RON. Also the combustion chambers are smoothened to avoid detonation. Anyway I just wanted to know if...

What kind of mileage have you made with your high horsepower 7m-gte without blowing your headgasket? I have built my supra quite far now (530rwhp dynoed with 24psi) and the headgasket went again, this time I had the HKS Stopper gasket torqued to 90 ft-lbs with ARP head studs. There's definetly...