Quote:
Originally Posted by feuer
Drifter guy name Dan in Australia has build e46 with single turbo n54 stand alone, no DI, ZF8HP 90 from diesel, with clutch pedal and shifter. He used some hydraulic throw out bearing and valve spring to replicate the true clutch feel. Lamik TCU transmission control from Poland. I have heard that some company from Michigan, Seems Legal or Seems Legit ???, does the same, minus the standalone for the n54, for lot more money. I’m going for trans 8 speed as well for my single turbo n54. Probably will go for zf8hp45/50 as is direct for from n55 engine. If that transmission doesn’t hold then next choice will be from b58, 340i/440i or Supra. Would not go for ActiveHybrid trans as is unnecessary more involved.
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Yep, in contact with Dan, great guy. IIRC he's also using an N57 HP70 box. Single turbo N55s burn up HP45s pretty quickly so the general recommendation for these is the HP70. HP45s usually get dodgy around 700Nm and HP70s are known to hold 1300+ when in good condition.
ActiveHybrid trans may be negligible added work compared to the HP45 and of course is a lot more beefy being an HP70, for a ST car like yours I would personally go with it. Same HP45 cooling adapter, just buy an N55 HP45 torque converter and 335D bracket and I think you're good to go. I'll test fitment with the factory cross member and N54 flexplate this weekend. Cheers!