Alcohol vs. Gas

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hotrod56cars

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« Reply #75 on: May 13, 2008, 08:12:31 AM »
Anybody have info on the CNG conversion for diesels?

Try Google.  :-*
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ROMPERSTOMPER

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« Reply #76 on: May 20, 2008, 03:38:02 PM »
Ive ran methanal for a few years in a 2 stoke motor sand drag app, and I must say im not a big fan. You will not save money on fuel taking this route. I mixed 10 percent nitro with it sometimes. The most hp you will see is 20-40% increse.More if you mix nitro and its not cheep. You also have to jet up with nitro. Thats if the jetting is dead on.  40% is the sarting point of running n20 with stock components witch I now use. With methanol you can not use a plug for reading and was very hard for me to dial. I burned up a hand full of pistons running lean. Lean is mean. If you using a efi or mfi It should be fairly easy to tune. also is very corrosive. On time i forgot to purge the motor, (run race fuel with oil through the motor after use),And after one night the crank and rod assy was completly rusted solid. Kills seals gaskets and fuel lines very fast. I was lucky to last one seasion. I think it is the way to go with forced induction applacations going for max hp. I personaly feel the Nitrous is a lot more simple and better route to go for na or fi.Its fairly cheep for a kit and 3-4$ a pound. You get good milige and run less load on the motor when your cruising and turn on the heat when you feel like it.Less maitainence. You can get way more power using nitrous. 50%-100%+. Im currently running a 300 hp nitrous set up on my 468 with a fast efi. the computer does everything. retard, add fuel, o2 senser,wot switch, ramp time, rev limiter ext. would do the same with alky but like I said With n2o I get the milige when I want it and when I want to haul A$$ I push a button. Oh yea I dont run av fuel because it a antifreeze in it and will rust engine parts. I can go on and on about fuel and n20. check out the vp site and see how they rate there fuel and how gas stations rate there fuel, its interesting.
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ROMPERSTOMPER

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« Reply #77 on: May 20, 2008, 06:25:18 PM »
wow next time ill proof read my post. lol sorry for the bad grammer, not a typer.
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crewchief22

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« Reply #78 on: May 20, 2008, 06:33:18 PM »
A lot of good information in it though.
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hotrod56cars

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« Reply #79 on: May 20, 2008, 09:36:55 PM »
... One time i forgot to purge the motor, (run race fuel with oil through the motor after use),And after one night the crank and rod assy was completly rusted solid. Kills seals gaskets and fuel lines very fast. I was lucky to last one seasion...

First off, thanks for the great post. ;)

What is purging the motor and exactly how is it done?

I'm not trying to argue... but I talked to a guy about his boat for quite some time, he's been running his MFI BBC on alcohol for 3 years with zero problems. He said he's never had to clean anything or replace any parts. Very frequent oil changes. He also said he either stores it completely empty (fuel) or completely full. So maybe it's a different type of fuel?  ???
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NO REGRET$ ... Arguing on the internet is like competing in the Special Olympics / no matter how good you do you're still retarded!!!!!

                                                          1978  19' Mach 1 Tunnel jet

ROMPERSTOMPER

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« Reply #80 on: May 21, 2008, 01:01:23 AM »
Purging the motor is after your done for the day you run regular fuel mixed with oil through the motor to lubracate it. 2-stroke motors dont run seperate motor oil to lube the crank and rod-lower end. thats why you run mixed gas. oil in the fuel to lube the lower end. I would use a squeze water bottle with a fuel ine on the end and disconnect the tank line. start the bike and when it starts to run like shit cause its jetted so fat you know the motor is fully purged. 4-stroke motors may not require this because of its seperate oiling system. the engine sleves and rings on a 4-stroke are still steel witch i would think would rust over night with out purging. any kind of fi will work way beter with alky (what I ran) because there are no carbs. Carbs have tons of seals gaskets and metal that can and will corrode after time. mfi is good because most setups run stainless lines and an hoses. Like anything, If you take your time and tune it rite im shure you can get it to be fairly easy to use and reliable. I would learn as much as possibe about it before you switch over to alky. I learned the hard way, $$ and by the time I had it down I was over it. I heard ethanal is less corossive but im not sure. I have to admit the the diference is very impressive. I believe n02 and alky not together can both be reliable if your expierenced with it and matain its cons. I prefer n02 myself
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