Originally Posted by
spooledex
I have some wiseco 12.5 compression .020 over pistons for sale... 300 obo used only 2000 miles.. great shape.. I went back to boost... will fit your motor with no machine work... 12.5 is the highest I would go on pump.. they made 201 whp untuned in my type R
you can go a little higher on pump if you need to. I've tuned up to 13:1 without problems. Timing just has to be conservative and detonation needs to be monitored.