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allispuller 
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Location: illinois
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 Topic: fuel
Posted: 06 Mar 2014 at 11:08pm |
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Was wondering what kind of fuel you guys with higher compression motors were running and what you have experienced. I have a WD45 with higher compression and thought about changing fuel.
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DrAllis
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Posted: 07 Mar 2014 at 5:57am |
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Until you get over 8 to 1 compression (170-180 psi cranking compression) you don't need anything better than 87 octane. Now, how high are you ??
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allispuller
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Posted: 07 Mar 2014 at 6:24am |
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10.5 to 1
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cotncrzy
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Posted: 07 Mar 2014 at 6:48am |
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VP fuels are very consistant. I run CHP, its oxygenated, and 107 octane. My compression ratio is close to that.
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C, WD45,WD puller, 185, 200, 7060 Red Belly, 7060 Black Belly,8010, and a R52 Gleaner, AND PROUD OF THEM!
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DrAllis
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Posted: 07 Mar 2014 at 6:51am |
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And at that ratio (240 psi??), your ignition timing will need to be around 18 to 20 degrees BTDC and not 30 degrees as marked on the flywheel.
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mattb
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Posted: 07 Mar 2014 at 7:18am |
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I run e85 and pump gas mixed
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allispuller
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Posted: 07 Mar 2014 at 1:12pm |
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I have checked into ignite 108 it is an ethanol based fuel. I was told it is 90% ethanol. I wasnt really sure about an ethanol because i know ethanol can be real hard on seals and other carb components. I was also told but you can create more power on ethanol but i wasnt sure about that because i dont know alot about ethanol.
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patrickmull
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Posted: 07 Mar 2014 at 4:41pm |
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I run 100 aviation gas
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allispuller
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Posted: 07 Mar 2014 at 5:53pm |
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cotncrzy what are you paying for you VP CHP
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allispuller
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Posted: 10 Mar 2014 at 7:11pm |
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Another question how much would an oxygenated fuel help
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cotncrzy
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Posted: 11 Mar 2014 at 10:48am |
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14 dollars per gallon. It seems to help tremendously in these
engines that dont take in air well
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C, WD45,WD puller, 185, 200, 7060 Red Belly, 7060 Black Belly,8010, and a R52 Gleaner, AND PROUD OF THEM!
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allispuller
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Posted: 11 Mar 2014 at 10:58am |
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thanks i will check into it. i will probably end up going that route. like i said i checked into ethanol but im just not sold on it in this type of application
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cotncrzy
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Posted: 11 Mar 2014 at 12:13pm |
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You will like the CHP except for the price, LOL. someone suggested av gas, it should work but we was having detionation problems with it. You have to drain the carb with the CHP fuel.
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C, WD45,WD puller, 185, 200, 7060 Red Belly, 7060 Black Belly,8010, and a R52 Gleaner, AND PROUD OF THEM!
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allispuller
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Posted: 11 Mar 2014 at 12:35pm |
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i had been running turbo blue but was kinda inconsistant and never knew if i could get it from the local dealer
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allispuller
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Posted: 11 Mar 2014 at 2:46pm |
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what did you have to change to run the oxygenated fuel
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cotncrzy
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Posted: 11 Mar 2014 at 4:15pm |
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It takes more fuel to maintain a good fuel air mixture.. on the old carb we bored the load jet some to get it rich at idle and still see a tad bit of smoke under full load.
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C, WD45,WD puller, 185, 200, 7060 Red Belly, 7060 Black Belly,8010, and a R52 Gleaner, AND PROUD OF THEM!
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allispuller
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Posted: 11 Mar 2014 at 4:17pm |
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ok ive got a modified carb so i should be close hopefully
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cotncrzy
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Posted: 11 Mar 2014 at 4:17pm |
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wi50 set me up a carb that worked perfect. Just opened the load screw... we did this when we increased cid.
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C, WD45,WD puller, 185, 200, 7060 Red Belly, 7060 Black Belly,8010, and a R52 Gleaner, AND PROUD OF THEM!
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allispuller
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Location: illinois
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Posted: 11 Mar 2014 at 5:02pm |
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thanks for all your help i appreciate it i will check into the chp
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