---------------------------------------------------------- RV7-List Digest Archive --- Total Messages Posted Mon 05/16/05: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:58 AM - Re: Autofuel (Cliff Lotter) ________________________________ Message 1 _____________________________________ Time: 01:58:59 AM PST US From: "Cliff Lotter" Subject: Re: RV7-List: Autofuel --> RV7-List message posted by: "Cliff Lotter" Have you forgotten about vapour-lock? Cliff Lotter do not archive ----- Original Message ----- From: "Hinde, Frank George (Corvallis)" Subject: RE: RV7-List: Autofuel > --> RV7-List message posted by: "Hinde, Frank George (Corvallis)" > > Hi All, > > According to GAMI the IO360 can run premium autofuel and they recommend > the following. > > Based presumably on the testing they have done with their new PRISM > ignition system that adjusts the spark timing and measures the crank > angle where the max cylinder pressure occurs....Apparently this point is > 16 deg ATDC. > > For the first time we are on the cusp of having the timing being > adjusted based on what the engine is actually doing...its a bit like a > highly advanced knoock sensor found on auto engines. > > By this time you should be saying WOW! > > The great thing is you can almost throw any fuel in it you want (as long > as it does not pre-ignite)...If it detontates the Prism will presumably > retard the ignition until it stops. > > But I digress...They say to keep CHT's down to 375F or less. And then > run at 100F ROP or 25 to 50 LOP. > > So there you have it...They believe these are conservative numbers. > > Frank > >