max boost with stock turbo pistons

[berniek]

Put my JDM together about 4 years ago, Cometic 2 mm HG (lowered compression), 550cc, Walbro, Lex, 3" random tech single cat exhaust, HKS catback, 57 trim CT26, Spearco knockoff, hardpipes, Lipp elbow, Aeromotive FPR (42 PSI), Raptor BOV. light Cr-Mo flywheel. Moved oil pickup to rear of pad. Fitted stock turbo pistons loose, but maybe should have gone for Weisco, etc.

I've read all manner of information about how much boost I could run. Never anticipated more than 15 PSI, but.....It feels soooo much better at 17-18. Fuel is always on the rich side. Anyone have a similar setup with stock turbo pistons? I just do short bursts through second and third gear, sometimes through fourth. Curious if anyone has run more boost.


BernieK