There are issues with the Map but that was on the hatches. I believe the std pistons, rings and rods are not that hot and can only take around 400 before you run the serious risk of failure.
The main weakness is that the block is quite 'open' even on the SCDB and the liners are quite thin, under high boost they can flex or balloon causing the HG to go or the rings to fail. I'm running a fully forged 2.5 but only at 1.5 bar due to that very reason, you can get the blocks pinned to be good up to around 500 or a closed deck insert which sees you over the 600 mark.
__________________
2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter
|