View Full Version : question on alchol


69rsinms
Mar 8th, 06, 05:19 PM
I have recently been thinking of swaping my 69 drag hule in to a alcholic does anyone know a round about price on this fuel thanks

Larger Dave
Mar 8th, 06, 06:09 PM
Varies around country, about the same as to a little less than racing fuel. Has other disadvantages beside price though. Not exactly ideal for street use.

Larger Dave

TexasPerfProd
Mar 8th, 06, 10:39 PM
Its quite a bit cheaper than racing fuel by the gallon. Actually about 3 yrs ago it was almost 1/2 the price of racing fuel. The last drums of alcohol we purchased were $125.00 a 55 gal barrel. But we buy ours with no top end lube included. We purchase our own lube, about $10.00 per drum, and mix it to our personnel blend. The drawback is it takes roughly double the amount of alcohol as it would racing fuel. As for a Bracket car fuel there really is no better fuel IMO. The big benefits are you get more power and the engine will run much cooler. Before I ever tried alcohol I hated it. After switching to alcohol I will not go back to gas on a bracket car.

Racing 68
Mar 9th, 06, 12:12 PM
Don't buy the cheap alcohol either there is reclaimed alcohol at about 100 a drum give or take and 99.95% pure methanol like from VP racing fuels. In our engines we have seen about three times the wear with the cheap stuff vs. VP

EMcIllece
Mar 9th, 06, 07:31 PM
I'm paying $2.80/gallon right now

Steptoe
Mar 9th, 06, 09:32 PM
I have had our street car on Propane since '86...cheap with the cost of fuel here not much more than the wifes little Toyota Corrolla ! Plus I have 115 octane, althu to make full use of the potentual I should have a 2nd regulator.
Basically stock, 450cfm holley base plate, no headers, performer dual plane. Runsa 14.2 with no tread T/As had under the house for 5 or 6 yrs, tool box, picinic stuff still in the boot (trunk) and in Drive, changing about 5200rpm. ANd it was only my 4th run on the strip...ever!
Just a thought?
I dont know if u guys have LPG at the pumps over there.

oger
Mar 10th, 06, 06:39 AM
Do you really want the problems of alky. Every time you shut down the motor for more than about a day you must flush anything that has aluminum in it or it will die in short order. Carbs are probably the worst offenders. You can set up a system to run the motor on gas for a while before you put it away but that is more junk on the car and more things to go bad. You need a lot of compression and you will use considerably more fuel to do the same thing.

Stainless dog
Mar 10th, 06, 07:30 AM
Sure must of drank alot of it last night by the way i feel todayyyyyyyyyyyyyyyy

TexasPerfProd
Mar 10th, 06, 11:59 AM
Do you really want the problems of alky. Every time you shut down the motor for more than about a day you must flush anything that has aluminum in it or it will die in short order. Carbs are probably the worst offenders. You can set up a system to run the motor on gas for a while before you put it away but that is more junk on the car and more things to go bad. You need a lot of compression and you will use considerably more fuel to do the same thing.
I am not denying the fact that there is some extra maintenance to running Methanol but I respectfully disagree with the statementEvery time you shut down the motor for more than about a day you must flush anything that has aluminum in it or it will die in short order. There are several of us that all have Methanol powered drag cars here and none of us completely flush the fuel systems from weekend to weekend. I do not disagree that it it wouldn't hurt but it is not mandatory. Yes if you want to put the car away and store it for 2 to 3 weeks or more it is a good idea to flush it out with gas.
As far as needing to run high compression on a primarily race engine I would say that works for racing fuel as well as Methanol. You can run Methanol on a 10:1 motor just as well as a 14:1 motor you just wont see as much power.
Some things to consider just like building any engine is the matching of parts. You need to build the engine for the intended purpose to get the full benefits of it. Just as NOS engines, Pro Charger engines, or NA gas engines, NA Methanol engines have certain things that are slightly different as well to make them perform to their best potential. Camshaft selection is a crucial part of any engine and Methanol has certain needs to get them to optimum power as well. Also Methanol does like compression and a lot of it generally speaking. These are just a couple of things but if you notice they are the same things that any custom built performance engine would need to have designed into it for its particular purpose.
Like I said in my earlier post In the past I was like Oger I didn't care for the stuff at all. Actually I hated the stuff. Its not for everyone but its typically close to 100 deg here during the summer and trying to race several classes its the only way to go IMHO

Steptoe
Mar 10th, 06, 12:34 PM
You need to build the engine for the intended purpose to get the full benefits of it.
Same goes for LPG....Dizzy with total 27 to 32 deg all in at 2200 to 2599 rpm
Select cam, and higher compression...not nessecary ratio as the cam at given revs and overlap can drop pressure...need 165 to 175 lb pessure.
A Chevy std petrol engine 'takes' to lpg well, better than others. A petrol engine just needs the dizzy moded to run well
A LPG on petrol runs real crap.
If the dizzy is not changed on LPG, u will run into valve burning/killing starter motors/fast wear and stress on the mains, rods.
If I was to do it over I would still go to LPG again. The current engine has run over 100,000 miles, for 20 yrs.
We pulled the heads last easter, used a pint water on a 400 mile trip, and valve guides where getting worn a little... little Wear, clean was amazing, no special oils where used, except Slick 50 Once, sometime after the engine orginally bedded in. Oill changes easter and end Oct.
We will be pulling the engine in a week or so, but that is because the car was stolen, reved the crap out, suspect crked piston, and damaged cam lobe...
Guys are /have played with LPG injection here as well.

Do u guys have LPG/propane at the pumps like we do in NZ.

PS I have also messed with CNG, runs flat, but if u can get the compression presures up around 180/200 it goes like cat withh firecrackers...draw back, storage cylinde is big and heavy, even with a big tank about a 50 to 60 mile range.

deerhunter
Mar 10th, 06, 01:05 PM
I will answer you. In Wyoming, I don't know of any LPG pumps and petroleum pumps at the same station. There are a few people in this town running propane but they need to go to a dealer or put a 'cheater' hose on a bulk tank. The ones I know running it say the same as you "the internal engine is very clean". There you go!