Coupelx Posted September 14, 2007 Report Share Posted September 14, 2007 e. What timing do they like? My biggest question is this. Normally methanol is a 8 to 12% increase in HP. And it is half the price of race fuel, but you go through twice as much...so, equal to equal....you're getting that 8 to 12% increase and a cooler running engine. E85 isn't exactly too easy to find...it is cheaper than race fuel, but what kind of power gains can you expect? 30% can be increased I think without drilling jets...but, is the performance worth it...I guess it what I'm saying. Wes...on methanol, you don't go 50% bigger on the pilot circuits. Normally gas bikes that like say...45 or 48 pilots go to 52 to 55 pilots for meth...FYI. I dont know if you will see a power gain like you will with meth, but it will allow you to push it farther. E85 is pretty common where i live making it a viable option for me, where as methanol is harder to get ahold of. treat e85 more like race gas in the basic sense of more octane=push it farther before it goes pop! www.e85refueling.com will tell you if there is a station near by. Quote Link to comment Share on other sites More sharing options...
wesw Posted September 15, 2007 Report Share Posted September 15, 2007 e. What timing do they like? My biggest question is this. Normally methanol is a 8 to 12% increase in HP. And it is half the price of race fuel, but you go through twice as much...so, equal to equal....you're getting that 8 to 12% increase and a cooler running engine. E85 isn't exactly too easy to find...it is cheaper than race fuel, but what kind of power gains can you expect? 30% can be increased I think without drilling jets...but, is the performance worth it...I guess it what I'm saying. Wes...on methanol, you don't go 50% bigger on the pilot circuits. Normally gas bikes that like say...45 or 48 pilots go to 52 to 55 pilots for meth...FYI. e85 isnt hard to get around here more ethanol plants going up every day anymore, anyways. as far as timing it would have to be what would be the best for my motor and domes. computer software tells me that from jim. was interesting cause i could increase the compression and be cheaper than my 100LL. always interested in new technology. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted September 15, 2007 Report Share Posted September 15, 2007 Wes...on methanol, you don't go 50% bigger on the pilot circuits.Normally gas bikes that like say...45 or 48 pilots go to 52 to 55 pilots for meth...FYI. I dunno Dave. I got 42 pilots in my bike. Thats smaller then when I was on gas :shrug: I guess it depends on what the motor likes. Quote Link to comment Share on other sites More sharing options...
RZBansheeMan Posted September 15, 2007 Report Share Posted September 15, 2007 Hey wesw, I've yet to get all my parts back from Jim, due to lack of funds, but what should I expect from his 12 port 4mm RZ set up ? If a person were to convert their Gas / AV-Gas Banshee to E-85 would you have to flush the fuel system, carbs and engine with gas & oil pre-mix afterwards like you would on an Alky set up ? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted September 15, 2007 Report Share Posted September 15, 2007 I dunno Dave. I got 42 pilots in my bike. Thats smaller then when I was on gas :shrug: I guess it depends on what the motor likes. True enough...I'm just going by what myself, Hopper, Tommy, JT, Doug Austin and a few others run in theirs....we all run within a jet or two of each other...and we all run the 39PWK pumper carbs, except JT... Hey wesw, I've yet to get all my parts back from Jim, due to lack of funds, but what should I expect from his 12 port 4mm RZ set up ? If a person were to convert their Gas / AV-Gas Banshee to E-85 would you have to flush the fuel system, carbs and engine with gas & oil pre-mix afterwards like you would on an Alky set up ? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted September 15, 2007 Report Share Posted September 15, 2007 I dunno Dave. I got 42 pilots in my bike. Thats smaller then when I was on gas :shrug: I guess it depends on what the motor likes. True enough...I'm just going by what myself, Hopper, Tommy, JT, Doug Austin and a few others run in theirs....we all run within a jet or two of each other...and we all run the 39PWK pumper carbs, except JT... Hey wesw, I've yet to get all my parts back from Jim, due to lack of funds, but what should I expect from his 12 port 4mm RZ set up ? If a person were to convert their Gas / AV-Gas Banshee to E-85 would you have to flush the fuel system, carbs and engine with gas & oil pre-mix afterwards like you would on an Alky set up ? I don't think so...(not sure) but if you had to purge E85...what do all the people that run it in their cars do? Quote Link to comment Share on other sites More sharing options...
wesw Posted September 15, 2007 Report Share Posted September 15, 2007 Hey wesw, I've yet to get all my parts back from Jim, due to lack of funds, but what should I expect from his 12 port 4mm RZ set up ? If a person were to convert their Gas / AV-Gas Banshee to E-85 would you have to flush the fuel system, carbs and engine with gas & oil pre-mix afterwards like you would on an Alky set up ? depends on what he ported it at. i loved my old 4mm motor. was very board power. im leaning with them powervalves it would be even broader, no clue though. when you get it going after you get some money let me know and ill help you jet it. chop chop on them funds and get going. imo lol as for the purging of fuel i would think the gas in the ethanol wouldnt cause it to draw moisture like reg alky. shit cars dont have to purge so im leaning it would work. Quote Link to comment Share on other sites More sharing options...
FireHead Posted September 15, 2007 Report Share Posted September 15, 2007 Hey wesw, I've yet to get all my parts back from Jim, due to lack of funds, but what should I expect from his 12 port 4mm RZ set up ? If a person were to convert their Gas / AV-Gas Banshee to E-85 would you have to flush the fuel system, carbs and engine with gas & oil pre-mix afterwards like you would on an Alky set up ? You will need to flush your fuel system running E85. Remember, 4 stroke cars are different, you just have to change the oil more often. :geek: Quote Link to comment Share on other sites More sharing options...
Coupelx Posted September 15, 2007 Report Share Posted September 15, 2007 I would drain the carbs after each ride if it is going to set for a week or more. i dont think the extreme flush would be necessary as it is with methanol. if it is to set for more than a month i would drain the tank too i think. It is however a very good solvent. i went through 3 fuel filters on my turbocar when i converted. that tank musta been purdy inside! :cool: Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted September 15, 2007 Report Share Posted September 15, 2007 I would drain the carbs after each ride if it is going to set for a week or more. i dont think the extreme flush would be necessary as it is with methanol. if it is to set for more than a month i would drain the tank too i think. It is however a very good solvent. i went through 3 fuel filters on my turbocar when i converted. that tank musta been purdy inside! :cool: Like I said earlier, you xant have rubber or aluminum parts in contact with the fuel for a long time. So you will have to drain and flush your tank and carbs. Quote Link to comment Share on other sites More sharing options...
RZBansheeMan Posted September 15, 2007 Report Share Posted September 15, 2007 Like I said earlier, you xant have rubber or aluminum parts in contact with the fuel for a long time. So you will have to drain and flush your tank and carbs. Don't these E-85 fueled vehicles have aluminum heads for the most part ?, and I'm quite sure that there are some plastic parts in the in-tank fuel pumps Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted September 15, 2007 Report Share Posted September 15, 2007 The fuel is not stored in the head, its in the tank, it gets burned off in the head. Plastic is fine, rubber, magnesium, and aluminum are bad. Quote Link to comment Share on other sites More sharing options...
RZBansheeMan Posted September 15, 2007 Report Share Posted September 15, 2007 I see, now. Thanks. Quote Link to comment Share on other sites More sharing options...
FireHead Posted September 15, 2007 Report Share Posted September 15, 2007 Don't these E-85 fueled vehicles have aluminum heads for the most part ?, and I'm quite sure that there are some plastic parts in the in-tank fuel pumps Yes they do, but as long as you design in the corrosion, it's not a big deal. Of course you can only have corrosion on things if they are exposed to air, so that's another way to get around it. There are seals and coutings out there to deal with alcohol contact, but not for a 35 year old engine design. :geek: Quote Link to comment Share on other sites More sharing options...
austin Posted September 17, 2007 Author Report Share Posted September 17, 2007 so...... E85 is about 105 octane and wont detonate with 12.5:1 compression; thats what my Chevelle's compression is. Whats the smallest size domes I could run to get this ratio? More compression is really the only reason Id want to switch over. Quote Link to comment Share on other sites More sharing options...
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