NJA82

Do Garrett make a GTRS specced turbo for the GTST? I know they make one for the SR20 which is the GT2871R 52 trim with a 0.64 A/R rear housing this option = a lot cheaper price overall, i know the GTST turbo is different just thought there might be an alternative.... After all its Garret that make the turbos for HKS at the end of the day.

^^ I would have to disagree with you there, in the wet maybe for some applications but in the dry no, i have run both the GSD3 and Potenza S03 on the rear of my S14 ( with every suspension mod avaliable so alignment is spot on ) and the difference is worlds appart, the S03 is so much a better tyre, i find even in the wet which is surprising seems the GSD3 is suppose to be a wet weather tyre.....

Looks pretty impressive Trent, One thing that looks really interesting is the speed maps, does this allow for timing corrections to be made in the higher gears only based on speed at a particular load point? So would effectively give you gear based adjustments for fuel/ignition..... Does this unit datalog AFR`s into that map trace? As well as knock? Looks like it could be the new PFC , hats off to Greddy for picking the game up and offering something new.

Sounds like a fuel cut to me, whats the condition of your fuel pump and injectors? What about your fuel filter ( i know its dumb but check it anyway ) Does it only do it at that specific load point? Or other areas of the tune? Have you checked your ignitor chip out? So it only does it while crusing slowly? If so sounds like a tuner hasnt tuned the first 3-4 lines of the power FC Fuel map properly, maybe has removed the fuel in those areas to avoid reversion richness... have seen it done before as strange as it sounds.

Mine made 190rwKW with similar mods and stock turbo and 14psi and some major boost leaks so the average for the stock turbo is usually around 200rwKW providing the fuel system can push it, i needed bigger injectors.