I am just about to buy a 4k motor and 4 spd box with turbo set up for my ke55. comes with everything. was running in his ke70, Has T25 turbo, cooler, 2 1/2 zorst, vlt fuel pump, adj fuel pressure reg. its costing me $600 i think its a pretty good price, should have it within the next week or 2, just waiting for him to take the motor out of the car. I'm planning on running pretty low boost.
had a bit of a read through the post above but without reading all 16 pages, do you guys recon the standard 4sp box and diff (welded) will be ok to handle it ?? like i said only wanna run like 5-7 psi.