Alcohol versus Gas

General Engine Discussion

Moderator: John_Heard

krettler
Posts: 1
Joined: Wed Aug 26, 2009 2:01 pm

Alcohol versus Gas

Postby krettler » Wed Aug 26, 2009 2:37 pm

I know there are some positives to running alcohol and that the engine stays cooler and that it usually runs more consistent. However, when you switch from Gas to Alcohol will the car run faster, slower or about the same?

Thanks

User avatar
sunsation540
Posts: 406
Joined: Sun Aug 20, 2006 11:32 pm
Location: Moore OK.

Re: Alcohol versus Gas

Postby sunsation540 » Thu Aug 27, 2009 10:57 pm

on my engine it made 38 more hp on alch than on gas.. dosent sound like much.. the car runs a tenth and a half faster on alch than gas. runs cooler and the fuel is $2.00 a gallon.. it requries better ign , better fuel pumps and can rust steel, eat aluminum and dilutes oil like all get out.. not so bad with proper ring seal and a vac pump! hard to start in the cooler months, in the end if you a willing to do the extra maintance it's all good.
make a plan and stick to it !!

User avatar
vegaracer
Posts: 676
Joined: Mon Aug 20, 2007 1:12 pm
Location: Wyoming, Ontario, CANADA
Contact:

Re: Alcohol versus Gas

Postby vegaracer » Fri Aug 28, 2009 5:56 am

I picked up 6 tenths switching to alcohol, and never do any maintenance. Oil stays in for 40 runs and still looks brown when it comes out. And, I don't run a vacuum pump. Just keep it leaned out when you're idling around and don't run it fatter than you have to.
Feenstra's Towing

1973 Vega
434 SBC, N.A.
Powerglide
9.01 @ 146

User avatar
clutchdude
Posts: 164
Joined: Wed Nov 22, 2006 6:10 pm
Location: Lancaster CA.

Re: Alcohol versus Gas

Postby clutchdude » Fri Aug 28, 2009 1:26 pm

i picked up 5 tenths gained 5 mph...other than that, i have the same maintenance that Vegaracer has. If you run it fat the oil will be a mess.

Besides that the motor gets warmer the leaner the idle is and the more heat i get in the motor on the starting line the faster it is on alcohol.

User avatar
Hitchcock
Posts: 1507
Joined: Fri Sep 12, 2008 6:57 pm
Location: Wichita

Re: Alcohol versus Gas

Postby Hitchcock » Sat Aug 29, 2009 2:50 pm

Are these advantages realized the same with a low comoression motor, or are all you guys running big compression numbers? And are you burning methanol, or ethanol?
73 Vette, moly back half
Pump gas 496
Two Pro Systems 950's
Chance 6000 converter

User avatar
vegaracer
Posts: 676
Joined: Mon Aug 20, 2007 1:12 pm
Location: Wyoming, Ontario, CANADA
Contact:

Re: Alcohol versus Gas

Postby vegaracer » Sat Aug 29, 2009 11:52 pm

I'm running methanol and about 13.5:1 on the compression. I don't know how well it works with lower compression.
Feenstra's Towing

1973 Vega
434 SBC, N.A.
Powerglide
9.01 @ 146

Ls7camaro
Posts: 109
Joined: Tue Mar 25, 2008 11:31 am
Location: Medina, OH

Re: Alcohol versus Gas

Postby Ls7camaro » Sun Aug 30, 2009 9:27 am

How much compression can you run with the E85? since it has gas do you have to run any different oil? I run all aluminum lines, so no problem there, I know that you have to change the metering blocks/jets(do you use alcohol jets?) Is the E85 worth the extra power over race gas? I know there is a big cost savings?
I can't wait for race season, this has got to be the year.

User avatar
moeraces
Posts: 92
Joined: Wed Jun 15, 2005 8:00 pm
Location: Yanceyville n.c.
Contact:

Re: Alcohol versus Gas

Postby moeraces » Sun Aug 30, 2009 1:16 pm

ran alky previously in sb vega 360" motor a and last in my truck carbed , 477,and loved it and i , had a bt the same results as vegaacer,,,i do pump it off so to speak with a gasoline /oil mix,at shut down,,,, to keep the alcohol from corroding everthing and lube everything while its sitting .
getting ready to do alky again in my new car 500" bbc enderle injected ,,astre,
we will see how it does, with injection,,,wanted originally to do blown ,,,but wound up building too much compression ,,,for blower, 14;1 ,,,,, the alky does like the good compression,,,,,,

2 Wild Racing
Posts: 5
Joined: Thu Sep 10, 2009 1:46 am

Re: Alcohol versus Gas

Postby 2 Wild Racing » Fri Sep 18, 2009 12:43 pm

Ls7camaro wrote:How much compression can you run with the E85? since it has gas do you have to run any different oil? I run all aluminum lines, so no problem there, I know that you have to change the metering blocks/jets(do you use alcohol jets?) Is the E85 worth the extra power over race gas? I know there is a big cost savings?


it's not that big of a saving you will burn two gal. of alky to one gal. of gas the good thing is alky equal more power. :thumb:

User avatar
Moparious Maximus
Posts: 125
Joined: Mon Oct 05, 2009 6:05 pm
Location: Iowa

Re: Alcohol versus Gas

Postby Moparious Maximus » Tue Oct 06, 2009 10:35 am

When I made the switch I picked up a half second and 3 mph. I will never run Gas again. :smt002

That was on a 12-1 CR 440 Mopar.
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana

http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o

User avatar
julven
Posts: 397
Joined: Thu Oct 13, 2005 4:20 pm
Location: Buffalo,Mo

Re: Alcohol versus Gas

Postby julven » Wed Dec 23, 2009 4:38 pm

I think I am going to be running my sbc on alcohol this season and was wondering what the smallist size radiator you guys have run safely?
Image

User avatar
wikd69
Posts: 1979
Joined: Sat Feb 23, 2008 12:42 pm
Location: Rocklin, CA
Contact:

Re: Alcohol versus Gas

Postby wikd69 » Wed Dec 23, 2009 5:20 pm

Hitchcock wrote:Are these advantages realized the same with a low comoression motor, or are all you guys running big compression numbers? And are you burning methanol, or ethanol?


Hey Hitch, simple rule of thumb: You burn methanol and drink ethanol. :thumb:

Get those two mixed up and you'll go just as fast in your hotrod, you'll just go blind doing it... :mrgreen: :mrgreen:
1969 ProStreet Camaro RS Best 9.75@139 1.46 60'
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline

http://www.marsh-racing.com/harrys_camaro-1.htm

User avatar
Moparious Maximus
Posts: 125
Joined: Mon Oct 05, 2009 6:05 pm
Location: Iowa

Re: Alcohol versus Gas

Postby Moparious Maximus » Wed Dec 23, 2009 8:59 pm

julven wrote:I think I am going to be running my sbc on alcohol this season and was wondering what the smallist size radiator you guys have run safely?


We run our small block dry, no water.

The big blower motor is a dry block but I circulate water through the heads to help spread the heat out, no radiator.


I dont know about the rest of you, but I have to work pretty hard to keep my motor up to temp.
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana

http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o

User avatar
vegaracer
Posts: 676
Joined: Mon Aug 20, 2007 1:12 pm
Location: Wyoming, Ontario, CANADA
Contact:

Re: Alcohol versus Gas

Postby vegaracer » Wed Dec 23, 2009 9:20 pm

I'm running water in my car and it is hard to keep heat in it. The motor actually cools as I go down the track. When we had the front engnie dragster, we ran a heater core out of a school bus for a rad. It was nice and small, something like 6x12x2".
Feenstra's Towing

1973 Vega
434 SBC, N.A.
Powerglide
9.01 @ 146

User avatar
julven
Posts: 397
Joined: Thu Oct 13, 2005 4:20 pm
Location: Buffalo,Mo

Re: Alcohol versus Gas

Postby julven » Wed Dec 23, 2009 9:35 pm

vegaracer wrote:I'm running water in my car and it is hard to keep heat in it. The motor actually cools as I go down the track. When we had the front engnie dragster, we ran a heater core out of a school bus for a rad. It was nice and small, something like 6x12x2".

That is kind of what I had in mind I just wanted to circulate some coolant through the heads and I didn't know what to expect on real hot days. I was going to have something built about the size you had in aluminum.
Image


Return to “Engine”

Who is online

Users browsing this forum: No registered users and 1 guest