watkins Posted October 20, 2005 Report Share Posted October 20, 2005 Loading the truck up for a trip out to Glamis and wondering if I should pickup some race gas just to be safe. I am running 156 psi compression with +4 timing. Should I pick some C-12 up and run like a 20/80 mix of C-12 and 91? Quote Link to comment Share on other sites More sharing options...
Proquad101 Posted October 20, 2005 Report Share Posted October 20, 2005 I dont think you will need it. Quote Link to comment Share on other sites More sharing options...
Ducman Posted October 20, 2005 Report Share Posted October 20, 2005 With 21cc domes at 156 you should be fine on 91octane pump fuel. Quote Link to comment Share on other sites More sharing options...
sheecandy Posted October 20, 2005 Report Share Posted October 20, 2005 im gonna run 20/80 mix c-12 and pump i got 20cc domes +4 timing just to be on the safe side Quote Link to comment Share on other sites More sharing options...
2strokesmoke Posted October 21, 2005 Report Share Posted October 21, 2005 i run 50/50 c-12 and 93 1 have 18cc domes with 180psi of compression any higher octane and i will run hot Quote Link to comment Share on other sites More sharing options...
Polish Posted October 21, 2005 Report Share Posted October 21, 2005 i run 50/50 c-12 and 93 1 have 18cc domes with 180psi of compression any higher octane and i will run hot 428188[/snapback] higher octain = cooler motor Quote Link to comment Share on other sites More sharing options...
BansheeBrian Posted October 22, 2005 Report Share Posted October 22, 2005 The higher elevation= lower compression + vise versa. Quote Link to comment Share on other sites More sharing options...
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