chilled Posted April 15, 2006 Report Share Posted April 15, 2006 what is the highest compression a guy would want to run with pump gas? can you get away with 180psi of compression? when should you switch to race gas? tnx Quote Link to comment Share on other sites More sharing options...
Stinger Posted April 15, 2006 Report Share Posted April 15, 2006 Typically it's 155-160psi...anything more requires pump gas. Quote Link to comment Share on other sites More sharing options...
greg_banshee Posted April 15, 2006 Report Share Posted April 15, 2006 Typically it's 155-160psi...anything more requires pump gas. 502437[/snapback] you mean anything more then 155-160psi requires Race Gas. Quote Link to comment Share on other sites More sharing options...
CadillacBanshee Posted April 15, 2006 Report Share Posted April 15, 2006 Over 160 has to use higher octane gas. The higher the compression, the higher the octane. Quote Link to comment Share on other sites More sharing options...
Ripassbrother Posted April 15, 2006 Report Share Posted April 15, 2006 my compression is 160. Im running 1 gallon Race (110) and 4 gallons super. Does that sound about right? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted April 16, 2006 Report Share Posted April 16, 2006 Other factors as well...stock timing? YOu only need to run as much octane as needed so it doens't ping or detonate. Listen to your motor and look at your plugs, that'll tell you... Quote Link to comment Share on other sites More sharing options...
Banshee17Racing Posted April 16, 2006 Report Share Posted April 16, 2006 my compression is 160. Im running 1 gallon Race (110) and 4 gallons super. Does that sound about right? 502572[/snapback] Yeah, that sounds right. I'd say you're on even on the safe side. Most say 160 psi is the limit for pump gas (93 octane). Quote Link to comment Share on other sites More sharing options...
chase@miamiatv.com Posted April 16, 2006 Report Share Posted April 16, 2006 my compressions 220psi and i run vpc12 Quote Link to comment Share on other sites More sharing options...
dajogejr Posted April 16, 2006 Report Share Posted April 16, 2006 220 PSI on 18cc domes? check you compression gauge...it's bad... Quote Link to comment Share on other sites More sharing options...
Wicked98Shee Posted April 16, 2006 Report Share Posted April 16, 2006 220 PSI on 18cc domes? check you compression gauge...it's bad... 502768[/snapback] yea no shit Quote Link to comment Share on other sites More sharing options...
00tbanshee Posted April 16, 2006 Report Share Posted April 16, 2006 i tried to run c12 yesterday with 40:1 amsoil my comp. is 130 n it made it run like crap hardly would idle Quote Link to comment Share on other sites More sharing options...
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