10.37 compression on pump gas

[93stang burden]

can you run 93 octane on 10.30's compression ratio without pinging??

 

[tannerc91gt]

what heads?

 

[gt40_2003wes]

yes as long as u don't try to go crazy with the timing.

 

[LarsD]

I was able to run 89 octane with gt40P heads pushing almost 10:1 compression. With the right chamber and aluminum heads I don't see why not.

 

[Wildstringer]

there's always E85. I haven't done alot of research on what needs to be done to run it.

 

[85_SS_302_Coupe]

With reasonable timing, yes. There are lots of 11:1-11.5:1 cars running pump gas. It's all in the tune.

 

[90stang5speed]

You need to tune for E85. Its stoic ratio is around 9.something instead of 14.7 like gas so you will also need bigger injectors

 

[tmoss]

dynamic compression ratio (determined by the cam intake valve closing event) should be looked at - could be a non-issue.