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  #16 (permalink)  
Old 08-31-2012, 10:18 AM
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Quote:
Originally Posted by JohnBaker View Post
I've never had to use 100 plus octane fuel in the past. The engine builder claims the following:

HOWEVER, IN DESIGNING YOUR OWN HIGH PERFORMANCE ENGINE, WE ARE NOT LIMITED TO HOLDING ALL THINGS EQUAL AND CAN COMBINE PROPERLY MATCHED COMPONENTS TO REDUCE AN ENGINES OCTANE REQUIREMENT EVEN WITH HIGHER STATIC COMPRESSION.

C) SINCE VALVE TIMING CONTROL DYNAMIC CYLINDER PRESSURE, WE CAN USE THE CAMSHAFT TO LOWER THE OCTANE REQUIREMENT. ENGINE DAMAGING DETONATION TYPICALLY OCCURS AT LOW RPM. THIS IS BECAUSE OF THE COOLING EFFECT FROM INCREASED CYLINDER ACTIVITY ABOVE 2,800RPM. THIS IS WHY WE USE CAMS WITH 240+ DEGREES DURATION @ .050" ON 110 LOBE CENTERS WITH 2,400 TO 2,800 STALL CONVERTERS TO SUCESSFULLY RUN ENGINES ON PREMIUM PUMP FUEL AT 11.0:1 COMPRESSION.
What I meant is plane fuel does not go bad like pump gas not so much the octane since you said you don't drive it often.

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Old 08-31-2012, 06:03 PM
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100LL aviation fuel is horrible gas to use straight in a car.I didnt even like using it in my cessna.A mogas STC was $150.00 for small cessnas and all you got was a sticker saying you could use mogas.Buy fuel stabiliser or octane boost or racing gas,but dont use a lot of 100LL.
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Old 09-05-2012, 07:51 PM
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Yup that is probably true I had no problem and the fuel is no longer LL. I would just mix in a few gallons, like I said it does not go bad.
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