Re: Ping In 359 Engine

Posted by Anthony Pallett On 2014/4/26 20:52:02

I would think that would be the upper limit. I have had 302 Ford street engines at around 9:1 CR in the 190 PSI range. These days a decently warmed over hot rod street engine runs about 200 PSI. You want to back off cranking compression on a heavier (over 3200ish LBS) car roughly 10-20 PSI and 10-15 if the engine is detonation sensitive which fatheads are, their are several more factors low octane gas, hot running ect but they don't really seem to be a factor in this case. So considering a 200PSI ideal and backing off 20 PSI for the cars weight and 15 PSI for detonation sensitivity you would be at 165 PSI and you would have some plus or minus wiggle room.