Originally Posted by gdmii
Just so you don't think Ed is picking on you, I'll chime in that I agree with him. 18:1 on any pump gas just ain't happening. 11:1 maybe...10:1 to be safe. Even if you did go to alcohol, 16:1 is about the max there. If any engine builder told me I could go to 18:1 on pump gas, I would be running away as fast as I could...if I could stop laughing long enough to run that is.
George
Geez you guys are ready to pounce like a lion, lol. Anyway Yes I said pump gas meaning no exotic fuels I have stated a couple different times that I use Torco 118 nos which is 120 motor octane. I have the piston paper work here and my bore is 106.30mm (4.185) not 108mm as i thought, The cc chamber is 44. everything else is as stated.. . I would like to know exactly what I have for compression if someone wants to give me there e-mail to see if it is 18:1 (because It costs me $67 for 5 gallons of 118 nos torco and if it is lower compression might be able to use the 115 - 116 torco.) - business or personal e-mail so they can see the all the specs and sorry Ed this je piston sheet has mm all over it thats why i took the extra time to write them both down for the specs.