Originally Posted by
SR20GTi-R With his goal, he will never reach that threshold.
At 10:1 compression I ran 18-20psi on a 35R VET @ 15 degrees peak timing on 93 pump.
A year later I added meth injection and ramped it to 23-24 degrees peak. 3 years later the motor is still alive and strong.
I am now around 11:1 and plan on running the same pressure on pump and 25-30psi on meth.
those sound like really reliable values on that kind of engine, i also agree on the tuning, theres alot of honda guys out there boosting factory 10:5:1 cr engine, its all in the tuning, you cant get crazy and tune it like a lower compression engine, you have to take some needed steps in making sure you arent going to melt something with agressive tuning, even with higher compression and retarded timing values compared to a lower compression engine, you will still see great power.