Post by
Phax »
https://forums.nicoclub.com/phax-u2813.html
Wed Dec 03, 2003 2:51 pm
Have you done a compression test on your motor? You'll want about 170+ PSI on all cylinders before you go cranking the boost up too high.
How about a metal head gasket? What size you get depends on how much boost you plan to eventually run.
As someone pointed out, get some gauges. Start at stock boost and slowly dial it up. See how well the engine takes to boost.
With regards to clutches, RPS has treated me well. They're a somewhat local operation, and they're well regarded among the high horsepower Supra guys. My clutch weight / throw feels stock. I don't remember the exact numbers, but the clutch is setup to handle ~350 ft/lbs. They do build beefer units if you need them.