Changed from race gas to methanol
#3171571
08/30/23 09:26 AM
08/30/23 09:26 AM
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Joined: Apr 2004
Posts: 324
Northport, al.
tvt59
OP
enthusiast
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OP
enthusiast
Joined: Apr 2004
Posts: 324
Northport, al.
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You know you hear people that have made that change and some people make outrageous claims about their performance after switching . I'd like to hear your real world experience's. I switched from a 1040 cfm pro systems gas carb. to a pro systems 1040 cfm alcohol carb. with me in the car. Best et on gas 6.18, 1.34 @ 60, 113.6 mph. Still tuning on the alcohol set up 6.01, 1.30 @ 60, 111 mph. I think with tuning I can get 5.99, 1.28 @ 60, and 112 mph on alcohol. These et's were with the ambient temp between 97 and 100 degrees leaving the starting line at 2910 lbs
Nothing worth anything comes easy. It is always harder to do the right thing.
My Grandfather
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Re: Changed from race gas to methanol
[Re: tvt59]
#3171574
08/30/23 09:34 AM
08/30/23 09:34 AM
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Joined: Jan 2003
Posts: 13,380
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,380
Marion, South Carolina [><]
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A good friend's camaro ran mid 5.70s on alcohol w/ an 825 cfm Demon carb. Ran high 5.80s on 112 race gas w/ a 1050 dominator. I don't remember the MPH, but the 60' was about .03 quicker on alcohol also. The dominator was never 100% sorted out, but it was close.
This was a 3,000 lb '87 camaro, 436" sb chevy (all motor), powerglide, ladder bars, 9", etc.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Changed from race gas to methanol
[Re: tvt59]
#3171591
08/30/23 11:08 AM
08/30/23 11:08 AM
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Joined: Feb 2005
Posts: 20,192
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,192
PA.
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You know you hear people that have made that change and some people make outrageous claims about their performance after switching . I'd like to hear your real world experience's. I switched from a 1040 cfm pro systems gas carb. to a pro systems 1040 cfm alcohol carb. with me in the car. Best et on gas 6.18, 1.34 @ 60, 113.6 mph. Still tuning on the alcohol set up 6.01, 1.30 @ 60, 111 mph. I think with tuning I can get 5.99, 1.28 @ 60, and 112 mph on alcohol. These et's were with the ambient temp between 97 and 100 degrees leaving the starting line at 2910 lbs I thought you said you changed the cam too and a couple other changes.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Changed from race gas to methanol
[Re: pittsburghracer]
#3171604
08/30/23 11:51 AM
08/30/23 11:51 AM
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Joined: Apr 2004
Posts: 324
Northport, al.
tvt59
OP
enthusiast
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OP
enthusiast
Joined: Apr 2004
Posts: 324
Northport, al.
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Best passes and conditions
6.08 et renegade rm109 oxygenated race gas. small headers, small cam. my son driving 55 degree weather.
6.25 sonoco 110 race gas, small headers, small cam me driving 90 degree weather.
6.18 sonoco 110 race gas big headers, big cam, me driving 97 degree weather.
6.01 renegade methanol big headers, big cam , me driving 100 degree weather. No tuning on this package so far.
My son weighs 175 lbs I weigh 303 lbs
Nothing worth anything comes easy. It is always harder to do the right thing.
My Grandfather
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Re: Changed from race gas to methanol
[Re: tvt59]
#3171611
08/30/23 12:16 PM
08/30/23 12:16 PM
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Joined: Feb 2005
Posts: 20,192
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,192
PA.
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Best passes and conditions
6.08 et renegade rm109 oxygenated race gas. small headers, small cam. my son driving 55 degree weather.
6.25 sonoco 110 race gas, small headers, small cam me driving 90 degree weather.
6.18 sonoco 110 race gas big headers, big cam, me driving 97 degree weather.
6.01 renegade methanol big headers, big cam , me driving 100 degree weather. No tuning on this package so far.
My son weighs 175 lbs I weigh 303 lbs
Please tell me you take more info than just temperature. Temperature tells you nothing
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Changed from race gas to methanol
[Re: tvt59]
#3171620
08/30/23 12:38 PM
08/30/23 12:38 PM
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Joined: Oct 2007
Posts: 4,209
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,209
New York
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Missing, but relevant: static CR
Boffin Emeritus
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Re: Changed from race gas to methanol
[Re: polyspheric]
#3171666
08/30/23 02:30 PM
08/30/23 02:30 PM
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Joined: Mar 2003
Posts: 2,519
PA
moparacer
master
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master
Joined: Mar 2003
Posts: 2,519
PA
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Methanol is very forgiving. You can run them pig fat and milk oil, and even run too much timing and it deals with it pretty well. Just dont run it lean....  It also makes more torque than gas. What I have found is the worse your gas setup is, the more you will pick up. I changed my car years ago from a sorted out 1040 Pro systems gas carb to alky injection and did not even pick up a tenth. And water content in the air (humidity) is most important when running alky.
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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Re: Changed from race gas to methanol
[Re: pittsburghracer]
#3171672
08/30/23 02:44 PM
08/30/23 02:44 PM
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Joined: Apr 2004
Posts: 324
Northport, al.
tvt59
OP
enthusiast
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OP
enthusiast
Joined: Apr 2004
Posts: 324
Northport, al.
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I keep lots of other information. But it's not necessary for this tread You were asking about the changes I made to the car.
Nothing worth anything comes easy. It is always harder to do the right thing.
My Grandfather
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Re: Changed from race gas to methanol
[Re: polyspheric]
#3171674
08/30/23 02:46 PM
08/30/23 02:46 PM
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Joined: Apr 2004
Posts: 324
Northport, al.
tvt59
OP
enthusiast
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OP
enthusiast
Joined: Apr 2004
Posts: 324
Northport, al.
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it's a low compression engine 11.2 to 1. cranking compression is also kind of low 220 psi. it has conventional LA style heads and a crower 31409 camshaft
Nothing worth anything comes easy. It is always harder to do the right thing.
My Grandfather
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Re: Changed from race gas to methanol
[Re: moparacer]
#3171676
08/30/23 02:53 PM
08/30/23 02:53 PM
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Joined: Apr 2004
Posts: 324
Northport, al.
tvt59
OP
enthusiast
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OP
enthusiast
Joined: Apr 2004
Posts: 324
Northport, al.
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moparacer, I think the reason my car picked up so much is that the converter [ on gas ] was probably a little too tight. I've not changed jetting in the carb from the pro systems setting. Have not changed the timing or shift points from my gas tune up so far. My oil is not milking and I'm able to build heat in the engine , even without using the leanout valve. but I am concerned about my mph.
Nothing worth anything comes easy. It is always harder to do the right thing.
My Grandfather
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Re: Changed from race gas to methanol
[Re: tvt59]
#3171738
08/30/23 07:06 PM
08/30/23 07:06 PM
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Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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I thought methanol is rather toxic and absorbed thru the skin. That being said, I don't know why I am alive many decades after running it with Benzene, Nitro etc as a 12-year-old in my MC101 go kart without a glove, etc within miles. It was BTW a great fuel. 
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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