Caldina GT4 Transmission

[wmorrison1967]

Hello,
I own a 2003 GT4 Caldina (ST246) with the tiptronic tranny. Anyone know the HP limit of this tranny? I am looking increase the HP to 300+ (<400).

Wil

[fivebob]

I believe it's the same transmission (U140E) as used in the 4WD Lexus (RX300), so it should be able to handle the torque of a 2L turbo with ease.

That said however, when I researched this transmission I found that Lexus owners were complaining of faults in their transmissions, but this seemed to be when they were towing huge loads and overheated the transmission oil.