E85 Operating temperatures
#2558146
10/03/18 10:45 AM
10/03/18 10:45 AM
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Joined: Mar 2008
Posts: 89 Cedar Rapids, IA
69Mcode440
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OP
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Posts: 89
Cedar Rapids, IA
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I have a 71 Dart with a 440, runs 10.20's. Backhalf ladder bar car, weighs 3000 # with me in it. 12.5-1 compression, .570 lift 260@50 solid cam. M1 with a 1050 dominator.
I currently run 110 octane turbo blue. Radiator is a 22 x 17 core aluminum with 2 10" ebay fans in a 1" deep shroud. I believe the fans flow about 1500 cfm total. The block is a half fill.
This is a drag only car. On days when the temps are greater than 85, it is usually at 200 returning to my pit spot, Occasionally it will push over that and when going rounds and they start hot lapping us at the end of the day, I have trouble keeping the temp down below 180 by the time I get back to the staging lanes.
I don't have room for a big single 16" fan as the radiator sits too close to the water pump, electric in a stock aluminum housing.
I am considering switching to E85. Will this help this situation? I have been told going to alcohol will, but wondered about trying E85.
Thanks, Mike
Last edited by 69Mcode440; 10/03/18 10:46 AM.
Mike 69 440 Cuda 71 Dart drag car 70 Duster drag car Best et 9.32, 145.9 mph 2019 Ram 2500 4x4
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Re: E85 Operating temperatures
[Re: 69Mcode440]
#2558156
10/03/18 11:12 AM
10/03/18 11:12 AM
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Joined: Feb 2011
Posts: 1,454 Glendora Ca.
Just-a-dart
pro stock
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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Works for me. Hot lapping I start watching trans and tire temp.
"Just a Bracket car dressed up like a streetcar"
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Re: E85 Operating temperatures
[Re: 69Mcode440]
#2558176
10/03/18 11:40 AM
10/03/18 11:40 AM
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Joined: Jan 2003
Posts: 8,027 Tulsa OK
Bad340fish
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master
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Posts: 8,027
Tulsa OK
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You might try some different fans, I run some dodge intrepid fans that clear the water pump in the middle after a little surgery. I have a 600ish hp small block and the water pump is real close to the radiator. Electric water pump and fans and my target burnout box temp is 140.
Your block being filled may be harder to cool but fans really made the difference with mine. I made 3 passes in less than 45 minutes on the last day of drag week this year, 140 in the burnout box every time.
68 Barracuda Formula S 340
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Re: E85 Operating temperatures
[Re: 69Mcode440]
#2558267
10/03/18 02:40 PM
10/03/18 02:40 PM
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Joined: Jan 2003
Posts: 19,367 Las Vegas
Al_Alguire
I Live Here
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I Live Here
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Posts: 19,367
Las Vegas
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We struggled in our dragster to keep temp in it. In fact when we run later in the year like our turkey race we usually have the engine wrapped in a blanket all day to keep some heat in it. In the summer months it was tough to get it over 180. This was a low 8 second deal.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: E85 Operating temperatures
[Re: racerx]
#2558304
10/03/18 03:26 PM
10/03/18 03:26 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
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master
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Posts: 2,578
sweden
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I'v never had that problem. May be a local problem with cars running E85depending on humidity now that i think about it,never saw it on anything running gasoline,only on cars running E85
Last edited by 1Fast340; 10/03/18 03:27 PM.
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Re: E85 Operating temperatures
[Re: 69Mcode440]
#2558311
10/03/18 03:36 PM
10/03/18 03:36 PM
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Joined: Aug 2003
Posts: 43,202 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,202
Bend,OR USA
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[ I am considering switching to E85. Will this help this situation? I have been told going to alcohol will, but wondered about trying E85. Thanks, Mike [/quote] I have a friend who switch his car over several years ago(around 8 yrs.ago) to E85 to make his car run more consistently from morning to after noon on race gas, it would vary around .2 in the 1/8 mile on race gas. He did his own conversion and made sure it was fat enough at light part throttle cruise to cool down around 10 F on the return road, his car became deadly consistent with that change, he left the same dial in on the car for six races in the summer It would run that number in the morning on the first time trail and run it all day long I switch my car to E85 after that also
Last edited by Cab_Burge; 10/03/18 03:38 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: E85 Operating temperatures
[Re: 69Mcode440]
#2558322
10/03/18 03:44 PM
10/03/18 03:44 PM
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Joined: Mar 2008
Posts: 89 Cedar Rapids, IA
69Mcode440
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Joined: Mar 2008
Posts: 89
Cedar Rapids, IA
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Thanks everyone for the replies. I think I'll give it a go. Racing's over for this year. I'll add it to the winter project list for next season.
Mike
Mike 69 440 Cuda 71 Dart drag car 70 Duster drag car Best et 9.32, 145.9 mph 2019 Ram 2500 4x4
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