What is the standard on the most compression
For street use and pump 93 octane fuel? I know it will be a tuning issue to some level but there has to be that one step that you cannot tune your way to it running good. Some of the old school guys are like 11 to 1 but I thought there are some on up in the 12.5 to 1 area.,
For the sake of ease and just giving a generic guide line..
87 - up to 8.5-1
89 - up to 9.5-1
93 - up to 10.5-1
This is a very flexable answer & assumes a reasonable size cam shaft is used along with the rise in compression for the performance factor and reasons. If the cam is to small for a high ratio, you’ll have detonation issues.
I run a Hyd. roller cam @
[email protected] w/.538 lift in a (just ever so shy) 11-1 - 360.
The cam isn’t a super stout ramp cam. It is a Comp Cam on a 110 C line. 93 octane only as it doesn’t like the next grade down, 89. I wasn’t sure about this but another member local time came over and said I could do it and I should go for it, just watch the tune. The distributor timing is key along with lean or rich conditions.
This engine also has a good custom Pro Torque converter and 3.55’s out back on 26 inch tires. The car is on the light side.
It’s really a package deal.
Everybody working together.
I was just looking at a Snow kit for it...
Boosted, are you intercooled?