Beiky Member Jan 10, 2013 #1 My engine is 145 PSI compression. What is the maximum compression that give these engines?
Dr Honda Well-Known Member Jan 14, 2013 #2 125~130 psi is normal on these engines. if there is a little extra oil in the cyl's... it will be high. OR... a previous owner shaved the heads a little. You can run "pump fuel" safely up to (around) 170 psi.
125~130 psi is normal on these engines. if there is a little extra oil in the cyl's... it will be high. OR... a previous owner shaved the heads a little. You can run "pump fuel" safely up to (around) 170 psi.
