87sheerips Posted November 28, 2009 Report Share Posted November 28, 2009 I ran alky in my trail/dune bike last year for a little bump in power... It was cool, handles the trails just fine, but is really not needed. Horrible gas mileage and you cant go fill up just anywhere... Now my bike is back on 110, but I said screw it and am putting it back on 93 for next year... The drag bike, of course, burns Methanol and thats it. Quote Link to comment Share on other sites More sharing options...
drag mx66 Posted December 5, 2009 Report Share Posted December 5, 2009 Alchocol burns 2 to 3 times faster than gas. But 9% power increase and run super rich before noticing power lose. I run it on my 14mill and will never go back to gas Quote Link to comment Share on other sites More sharing options...
jlevasseur Posted December 5, 2009 Author Report Share Posted December 5, 2009 thanks. was going to put my dunner 10 mil on alky but now I think I am going to sell it and build or buy a full custom drag bike. If you guys know anyone looking for a show custom built dunner for sale or trade for a hillshooter drag bike let me know. Thanks for all your input guys. Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted December 5, 2009 Report Share Posted December 5, 2009 At the Genoa jamboree this fall we had to trail ride out to the races maybe a mile or two and we played on the way and I burned probably 1/4 of a tank getting out there had a 1/2 to race with and had a 1/4 to get back. Its a big difference in power. What fouledout isn't mentioning is that his Mccoy motor will run fine being very rich althought some will not. If you are goin out of frames and racing or can carry fuel. Do it. Get some domes for alky it'll run a bit better and the carbs setup right. It will be a lot faster. Quote Link to comment Share on other sites More sharing options...
camatv Posted December 6, 2009 Report Share Posted December 6, 2009 you can tune your alky bike to not be so stinking rich with the right carbs. you should be able to tune it to run almost similar to gas i get a lil worse mileage from gas but the most fun i had on a dune bike was a 350 with a +8 on alky that sucker would tree shoot like noother and wheelie all crazy out of the tree lines FUN FUN and i loved dumping the clutch halfway up a big dune.. Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted December 6, 2009 Report Share Posted December 6, 2009 Go to meth, you will love it. Quote Link to comment Share on other sites More sharing options...
banshee631 Posted December 7, 2009 Report Share Posted December 7, 2009 i run my bike on ethanol and love it. between the switch from gas and more timing i picked up 11 hp at the wheels. my motor is fairly mild and i race flattrack and tt. the consumption is not that bad on mine. im running 34mm pjs with a 190 or 188 main depending on air temp. if your asking why ethanol or e85 [same thing] its cause i can get it out of the pump about 2 miles from my house for 1.95 gal. and the gas mixture helps it fire off when its cold. my race season is over the winter. this last weekend it was 41 deg outside and all i had to do was pull both chokes and after about 3 kicks its running. i ran a 30 min sprint race on about 1\2 tank. i would recomend this to anyone. i wish i would have done this a long time ago Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted December 7, 2009 Report Share Posted December 7, 2009 11hp from changing to E-85 and more timing? I don't want to sound like an asshole but I don't believe that for a minute. You sure you didn't forget that you also had it ported when you made those other changes? Quote Link to comment Share on other sites More sharing options...
dajogejr Posted December 7, 2009 Report Share Posted December 7, 2009 I personally don't see any point in going to E85 other than you can get it at the pump for 20% cheaper than premium fuel. You don't get the power advantage of Methanol, yet you still have to purge a bike and run a methanol/ethanol compatible oil. You only net a 7-8% increase in power from race gas to methanol...so what is E85, 3-4%? Why not go all the way? Quote Link to comment Share on other sites More sharing options...
shanYE west Posted December 7, 2009 Report Share Posted December 7, 2009 What fouledout isn't mentioning is that his Mccoy motor will run fine being very rich althought some will not. I was refering to all alky motors... Not just mine. (atleast all that I've dealt with) They're not as tempermental as gas engines. I've dealt with a few alky setups besides my own. Quote Link to comment Share on other sites More sharing options...
Monster_M3 Posted December 11, 2009 Report Share Posted December 11, 2009 (edited) how much better is the gas mileage out of ethanol in comparison to alky? is it similar to race gas mileage? i dont mine the purging it and if it makes the same power as race fuel at half the cost why not? do you need to convert ur carbs or anything? Edited December 11, 2009 by Monster_M3 Quote Link to comment Share on other sites More sharing options...
Bansh-eman Posted December 11, 2009 Report Share Posted December 11, 2009 I cant say how much MPG you gain using ethonal over meth, but with meth you can look at using about 40% more fuel.... But the power gains are substantually larger then switching to race gas.... You will need to convert your carbs and add power jets. Depending o what kind of carbs your running it might be more cost effective to buy a set that are ready to go and sell your gassers... Quote Link to comment Share on other sites More sharing options...
dajogejr Posted December 11, 2009 Report Share Posted December 11, 2009 Maybe my math is fuzzy...but don't you mean 200% more fuel? (100% would be the same, you're using twice as much methanol as gas...so...wouldn't that be 200%?) If you are handy and have the tools/patience...you can buy power jets for 100 or so a pair, then you just need a drill index set, some jb weld and some time to do your own carbs. Quote Link to comment Share on other sites More sharing options...
Monster_M3 Posted December 11, 2009 Report Share Posted December 11, 2009 so basically its the exact same as running meth except with less power? lol Quote Link to comment Share on other sites More sharing options...
dajogejr Posted December 11, 2009 Report Share Posted December 11, 2009 Here's the big difference, E85 is easier to find than Methanol. I buy a 55 gallon drum of methanol. You can find them around here for 130 to 200 bucks for the drum. Figure another 25 or so for a drum pump. Then you just fill what you need, etc. You won't get the power output of methanol but slightly more than race fuel, you will still have to purge, you will burn through more E85 than race fuel but not as much as Methanol. That being said...if you lived somewhere you couldn't find Methanol or it was ridiculously expensive...I would look to E85... But to be honest, I don't think the 2-3% increase you'll see in E85 is worth the hassle. You're only going to get 7 to 9% on Methanol over race fuel in performance increase.... Quote Link to comment Share on other sites More sharing options...
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