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E85 Operating temperatures #2558146
10/03/18 09:45 AM
10/03/18 09:45 AM
Joined: Mar 2008
Posts: 78
Cedar Rapids, IA
6
69Mcode440 Offline OP
member
69Mcode440  Offline OP
member
6

Joined: Mar 2008
Posts: 78
Cedar Rapids, IA
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 09:46 AM.

Mike
69 440 Cuda
71 Dart drag car
70 Duster drag car (project)
2006 Ram 1500 SLT 4x4
Re: E85 Operating temperatures [Re: 69Mcode440] #2558150
10/03/18 09:57 AM
10/03/18 09:57 AM
Joined: Jan 2003
Posts: 740
Btween a rock and a hard place
moparlulu Offline
super stock
moparlulu  Offline
super stock

Joined: Jan 2003
Posts: 740
Btween a rock and a hard place
I seen about a 10* drop in temp switching

Re: E85 Operating temperatures [Re: moparlulu] #2558154
10/03/18 10:07 AM
10/03/18 10:07 AM
Joined: Mar 2008
Posts: 726
Ohio
Dan Brewer Offline
super stock
Dan Brewer  Offline
super stock

Joined: Mar 2008
Posts: 726
Ohio
My 440 is much less compression but I struggle to get temp to 180 which is where I stage it. Never sees 200.


A833 4-speeds, parts & services
http://www.brewersperformance.com/
Re: E85 Operating temperatures [Re: 69Mcode440] #2558156
10/03/18 10:12 AM
10/03/18 10:12 AM
Joined: Feb 2011
Posts: 1,411
Glendora Ca.
J
Just-a-dart Offline
pro stock
Just-a-dart  Offline
pro stock
J

Joined: Feb 2011
Posts: 1,411
Glendora Ca.
Works for me. Hot lapping I start watching trans and tire temp.



"Just a Bracket car dressed up like a streetcar"
Re: E85 Operating temperatures [Re: 69Mcode440] #2558161
10/03/18 10:16 AM
10/03/18 10:16 AM
Joined: Dec 2007
Posts: 297
Michigan
4
412 SB Duster Offline
enthusiast
412 SB Duster  Offline
enthusiast
4

Joined: Dec 2007
Posts: 297
Michigan
I had about a 10 deg drop also. I still used the fan during a run. It can still get hot on E85 just takes a little longer and will cool quicker. I ran E85 for about 5 years and it worked well.

Alcohol is in my opinion the best bracket racing fuel there is. You will be able to double up on any day without any issues getting hot. the only thing that will get hot is the trans if you don't have a good cooling system for it.
Only used the fan to control the temp before a run and shut it off during a pass.

Al

Re: E85 Operating temperatures [Re: 69Mcode440] #2558176
10/03/18 10:40 AM
10/03/18 10:40 AM
Joined: Jan 2003
Posts: 6,496
Tulsa OK
Bad340fish Offline
master
Bad340fish  Offline
master

Joined: Jan 2003
Posts: 6,496
Tulsa OK
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
Re: E85 Operating temperatures [Re: 69Mcode440] #2558223
10/03/18 12:22 PM
10/03/18 12:22 PM
Joined: Feb 2007
Posts: 2,551
sweden
1
1Fast340 Offline
master
1Fast340  Offline
master
1

Joined: Feb 2007
Posts: 2,551
sweden
E85 does cool things down alitle thats for sure,how much is probably more application specific.
Have seen a tunnelram covered in frost after a longer highway drive on a warm summerday,thats how much it can cool a top end.
Bad thing is that E85 engines realy need to be run alitle hotter to get water out of your engine unless you realy like to see milchake under your valvecovers.

Re: E85 Operating temperatures [Re: 69Mcode440] #2558235
10/03/18 12:49 PM
10/03/18 12:49 PM
Joined: Aug 2008
Posts: 3,260
Mo.
racerx Offline
master
racerx  Offline
master

Joined: Aug 2008
Posts: 3,260
Mo.
I'v never had that problem.

Re: E85 Operating temperatures [Re: 69Mcode440] #2558249
10/03/18 01:13 PM
10/03/18 01:13 PM
Joined: Oct 2004
Posts: 2,967
back in Georgia
dthemi Offline
master
dthemi  Offline
master

Joined: Oct 2004
Posts: 2,967
back in Georgia
Like others said, E85 will make more power the hotter you have the motor on the line to about 180. I'm happy at 160 on the line. When I'm on the return road, I'm back at 160 with one fan,and a small radiator.

On another car that's blown leaving at 160, I'm 180-190 on the return road, but the fan is still able to drive the temp back to 150 before getting to my pit.

I see typically on the switch 20 to 25 degrees as an average. I've converted 30+ cars and 5 of my own. My favorite e85 car right now runs high 4's and it drives to and from the line and never has a temp issue. Before on race gas temperature was a constant concern. Had to be 130 on the line, then 200 at the stripe, and continued to creep up on the way back to the pit. Often seeing 210.

Re: E85 Operating temperatures [Re: 69Mcode440] #2558267
10/03/18 01:40 PM
10/03/18 01:40 PM
Joined: Jan 2003
Posts: 17,310
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 17,310
Las Vegas
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.

Re: E85 Operating temperatures [Re: racerx] #2558304
10/03/18 02:26 PM
10/03/18 02:26 PM
Joined: Feb 2007
Posts: 2,551
sweden
1
1Fast340 Offline
master
1Fast340  Offline
master
1

Joined: Feb 2007
Posts: 2,551
sweden
Originally Posted By racerx
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 02:27 PM.
Re: E85 Operating temperatures [Re: 69Mcode440] #2558311
10/03/18 02:36 PM
10/03/18 02:36 PM
Joined: Aug 2003
Posts: 34,006
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 34,006
Bend,OR USA
[

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 shock
It would run that number in the morning on the first time trail and run it all day long work
I switch my car to E85 after that also up

Last edited by Cab_Burge; 10/03/18 02:38 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: E85 Operating temperatures [Re: 69Mcode440] #2558322
10/03/18 02:44 PM
10/03/18 02:44 PM
Joined: Mar 2008
Posts: 78
Cedar Rapids, IA
6
69Mcode440 Offline OP
member
69Mcode440  Offline OP
member
6

Joined: Mar 2008
Posts: 78
Cedar Rapids, IA
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 (project)
2006 Ram 1500 SLT 4x4
Re: E85 Operating temperatures [Re: 69Mcode440] #2559136
10/04/18 10:34 PM
10/04/18 10:34 PM
Joined: Oct 2004
Posts: 2,967
back in Georgia
dthemi Offline
master
dthemi  Offline
master

Joined: Oct 2004
Posts: 2,967
back in Georgia
Cranking in cold weather can be a little tougher than gas, but I've never had any moisture in the engine troubles like with methanol.

E85 is a great happy medium between gas and meth.


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