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What is Maximum CR You can run on Alcohol?
#1182173
02/19/12 02:29 PM
02/19/12 02:29 PM
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Joined: Sep 2003
Posts: 2,008 Sweet Home Alabama
MRMOPAR622
OP
top fuel
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OP
top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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What is the maximum compression you can run on alcohol using Ron's Terminators with aluminum block 4.50 bore and aluminum heads on an all out race engine? Would the maximum compression make the maximum horsepower? On this type engine with the o-ring in the head and receiver groove in the block using copper head gaskets, what would be the thickest head gasket you could use? I'm just looking for ways to improve the combination of my engine to get all the horsepower I can. Thanks
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: What is Maximum CR You can run on Alcohol?
[Re: MRMOPAR622]
#1182175
02/19/12 05:58 PM
02/19/12 05:58 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
master
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master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
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Methanol? all out race I would say 15/15.5 to 1 and maybe more start rich and then lean it back. would probably like lots of total timing too! Copper gaskets are available .032 up to .093 and I'm sure you can order way over .100? Quench is not an issue on a high compression race motor especially on Meth.
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Re: What is Maximum CR You can run on Alcohol?
[Re: MRMOPAR622]
#1182176
02/19/12 11:51 PM
02/19/12 11:51 PM
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Joined: Jan 2003
Posts: 10,006 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,006
Frostbitefalls MN (Rocky&Bullw...
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i run methanol with a Terminator, 4.5 bore 4.15 stroke Mega block. My mentor is a well known head porter/engine builder, and advised me to stay at 15.5 to 15.25 to 1 for best results. He stated that any more compression needed a less than optimum tune to not hurt parts and make max power.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: What is Maximum CR You can run on Alcohol?
[Re: gregsdart]
#1182177
02/20/12 12:54 AM
02/20/12 12:54 AM
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Joined: Jun 2008
Posts: 186 Middleton, ID
curleysracecars
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member
Joined: Jun 2008
Posts: 186
Middleton, ID
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We ran 16:1 for two years running Top Sportsman and had absolutely no problems. No water though...so just a copper gasket...no orings.
Kyle Curley
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Re: What is Maximum CR You can run on Alcohol?
[Re: Biginchmopar]
#1182179
02/20/12 11:22 AM
02/20/12 11:22 AM
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Joined: Sep 2003
Posts: 2,008 Sweet Home Alabama
MRMOPAR622
OP
top fuel
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OP
top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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The reason I asked on another forum a Renegade dealer posted a long topic looks like it might have been from Renegade that said any thing 15-1 and above alcohol was not recommended because it would not burn good and would run better with race-gas. I did not put much into his information,but just wanted to make sure I was where I needed to be.Thanks everyone for the help.
Last edited by MRMOPAR570; 02/20/12 11:36 AM.
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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