SCR vs DCR
this is from over on .org
Post subject: Yes it is... (Mon May 30, 2011 1:37 pm)
Quote: Is 11:1 doable on pump gas?
If you pick a fair duration and watch the overlap event, and use the DCR calculator, then adjust the timing/distributor recurve. It's very doable...I ran a 10.3:1 engine that would run on plus (with a few degrees of timing adjustment I could use regular or super, depending on race or daily driving).
The DCR calculator can subjectively show you what grade gas you may need to use with your build... (general rule of thumb 7-8DCR=regular, 8-8.5=plus/super, 8.5ish-9+=higher octane, there are some other variables that will move the rule around a bit).
While I was out of country, I had a dry erase board that I doodled and tweaked an 11.5:1 long rod build that worked out to using plus/super
(I think the day Rob Simmons visited my office, he thought I was translating some ancient Sumerian performance texts...LOL)
-D.Idiot
this is from over on .org
Post subject: Yes it is... (Mon May 30, 2011 1:37 pm)
Quote: Is 11:1 doable on pump gas? If you pick a fair duration and watch the overlap event, and use the DCR calculator, then adjust the timing/distributor recurve. It's very doable...I ran a 10.3:1 engine that would run on plus (with a few degrees of timing adjustment I could use regular or super, depending on race or daily driving).
The DCR calculator can subjectively show you what grade gas you may need to use with your build... (general rule of thumb 7-8DCR=regular, 8-8.5=plus/super, 8.5ish-9+=higher octane, there are some other variables that will move the rule around a bit).
While I was out of country, I had a dry erase board that I doodled and tweaked an 11.5:1 long rod build that worked out to using plus/super
(I think the day Rob Simmons visited my office, he thought I was translating some ancient Sumerian performance texts...LOL)
-D.Idiot