keeping cool - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech keeping cool

Print Thread

Page 1 of 2

1

2

keeping cool #1439619 05/20/13 08:47 PM 05/20/13 08:47 PM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	I am having trouble keeping it cool. My Charger that is. It has a all aluminum Indy 572" motor 12.5 to 1 motor. Makes around 800 hp. The cooling system consist of a Griffin Rad 26" x 2" and two 14" electric fans. one fan on the front and one on the back. Idling in my driveway on a nice 85f day. The cooling system cant keep the temp below 210. Its at that point I shut it off. At the track on the return road it just gets hotter as I return to the pits. The car has an alternator on it. What I am wondering is if it is possible to keep it cool or am I expecting too much. I have mufflers on the car and would like to drive it around more but I need to deal with the cooling before that can happen. 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: Saskabusa] #1439620 05/20/13 08:52 PM 05/20/13 08:52 PM
Joined: Aug 2009 Posts: 456 corpus christi tex C Cheatham mopar
Cheatham mopar C Joined: Aug 2009 Posts: 456 corpus christi tex	my alum 572 is almost ready im wondering how cool it will run in hi 90s here in tx, whats your timing at?

Re: keeping cool [Re: Saskabusa] #1439621 05/20/13 09:32 PM 05/20/13 09:32 PM
Joined: Nov 2008 Posts: 363 Aubrey, Texas O oldtimer5151 enthusiast
oldtimer5151 enthusiast O Joined: Nov 2008 Posts: 363 Aubrey, Texas	Remove the fan in front and install the largest fan that will fit behind the rad. Wrap the headers with heat wrap. Jack the front end up,turn the pump on, and slowly pore coolant in until no more bubbles appear. This eliminates hot spots in the heads.

Re: keeping cool [Re: oldtimer5151] #1439622 05/20/13 09:39 PM 05/20/13 09:39 PM
Joined: Feb 2011 Posts: 4,302 Nebraska 72Swinger master
72Swinger master Joined: Feb 2011 Posts: 4,302 Nebraska	Is the Griffin a 2-row 1" tube model? If so you need one of their 2-row 1.5" tube models. I bit the bullet and went with one and wow, finally cooling like it should. Derale has multiple dual fan setups that flow from 3600-4000 cfm and those are what we need on the street period. I am ordering the Derale 16833 this friday for my pile. Mopar to the bone!!!

Re: keeping cool [Re: 72Swinger] #1439623 05/20/13 10:05 PM 05/20/13 10:05 PM
Joined: Jan 2003 Posts: 926 MICHIGAN B BB65Barracuda super stock
BB65Barracuda super stock B Joined: Jan 2003 Posts: 926 MICHIGAN	Perhaps timing is a contributing factor? 1957 Power wagon wm300 original 10.000 mile truck, 1964 dodge Polara Convertible numbers matching

Re: keeping cool [Re: BB65Barracuda] #1439624 05/20/13 10:12 PM 05/20/13 10:12 PM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	Timing is 32* 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: 72Swinger] #1439625 05/20/13 10:21 PM 05/20/13 10:21 PM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	Quote: Is the Griffin a 2-row 1" tube model? . Yes that is what I have. 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: Saskabusa] #1439626 05/20/13 10:29 PM 05/20/13 10:29 PM
Joined: Feb 2011 Posts: 4,302 Nebraska 72Swinger master
72Swinger master Joined: Feb 2011 Posts: 4,302 Nebraska	Is 32 total and the dizzy is not locked? That radiator is good for cooling a 400hp 318 tops. My radiator is a Griffin 1-86242-X and they offer other universal fit sizes as well. I think it cost me around $450 shipped. Last edited by 72Swinger; 05/20/13 10:30 PM. Mopar to the bone!!!

Re: keeping cool [Re: 72Swinger] #1439627 05/20/13 10:31 PM 05/20/13 10:31 PM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	Quote: Is 32 total and the dizzy is not locked? That radiator is good for cooling a 400hp 318 tops. My radiator is a Griffin 1-86242-X and they offer other universal fit sizes as well. I think it cost me around $450 shipped. The distributor is locked. The car runs a crank trigger. 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: Saskabusa] #1439628 05/20/13 10:36 PM 05/20/13 10:36 PM
Joined: Feb 2011 Posts: 4,302 Nebraska 72Swinger master
72Swinger master Joined: Feb 2011 Posts: 4,302 Nebraska	You wont have much luck running it locked and keeping it cool on the street. I've never ran that much engine but I bet you would see an improvement in temp running around 17-20 degrees initial. If its an MSD dizzy I think the biggest bushing is 18-19* of mechanical advance which would put you at about 12 intial which might suck though. Mopar to the bone!!!

Re: keeping cool [Re: Saskabusa] #1439629 05/20/13 11:04 PM 05/20/13 11:04 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: I am having trouble keeping it cool. My Charger that is. It has a all aluminum Indy 572" motor 12.5 to 1 motor. Makes around 800 hp. The cooling system consist of a Griffin Rad 26" and two 14" electric fans. one fan on the front and one on the back. Idling in my driveway on a nice 85f day. The cooling system cant keep the temp below 210. Its at that point I shut it off. At the track on the return road it just gets hotter as I return to the pits. The car has an alternator on it. What I am wondering is if it is possible to keep it cool or am I expecting too much. I have mufflers on the car and would like to drive it around more but I need to deal with the cooling before that can happen. You might not be able to get there with that rad, but; Remove the thermostat and any restrictors ( if you are running them ). Dump both electric fans. Run a tight fitting fan shroud ( that covers the entire rad core ) and get the biggest flex fan ( 19" or more) you can fit in there. Getting the hot air out of the engine compartment will also help. Removing or modifying the inner fender panels will help. You can tell if you have air flow problems by running it without the hood and seeing if the problem goes away. 7713332-fan1.jpg (43 downloads) Fastest 300

Re: keeping cool [Re: Saskabusa] #1439630 05/20/13 11:07 PM 05/20/13 11:07 PM
Joined: May 2008 Posts: 452 new york usa P pattyboy 572 mopar
pattyboy 572 mopar P Joined: May 2008 Posts: 452 new york usa	Ever consider E - 85 conversion.....have the same set-up 572 440-1s .

Re: keeping cool [Re: pattyboy 572] #1439631 05/20/13 11:24 PM 05/20/13 11:24 PM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	There isn't a lot of space between the Meizer water pump and the rad. Sticking a big fan dead center of the rad is not going to happen. 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: Saskabusa] #1439632 05/20/13 11:27 PM 05/20/13 11:27 PM
Joined: May 2008 Posts: 452 new york usa P pattyboy 572 mopar
pattyboy 572 mopar P Joined: May 2008 Posts: 452 new york usa	you sure could use a shroud....helped a lot..jegs or summit..that would center the fan and pull evenly through the entire core Last edited by pattyboy 572; 05/20/13 11:29 PM.

Re: keeping cool [Re: Saskabusa] #1439633 05/20/13 11:46 PM 05/20/13 11:46 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: There isn't a lot of space between the Meizer water pump and the rad. Sticking a big fan dead center of the rad is not going to happen. Even if you went with a 1.5" core rad, I doubt that set up will make it. Assume you have the rad stepped off from the core support to fit the front mounted electric fan - and it is staggered to the right? You are still missing a lot of the rad core. The rad core needs to be tight up to the core support so what ever air goes through the rad is ONLY coming from outside the engine compartment. Consider revamping your set up. It obviously aint working as it is. If you don't want to run a flex fan, move the rad up against the core support (make sure the core support opening is the same size as the rad core) and run one electric fan mounted to a fan shroud that looks and fits like mine. You need to draw air through the entire rad core. Fastest 300

Re: keeping cool [Re: Saskabusa] #1439634 05/20/13 11:54 PM 05/20/13 11:54 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: There isn't a lot of space between the Meizer water pump and the rad. Sticking a big fan dead center of the rad is not going to happen. You have a couple things wrong... 2 small fans DONT equal 1 larger fan... the center of the fan DOESNT move air so IF you have to, move the biggest single fan offset so it fits in the area.. next is a shroud ... its a must have... in your set up your gonna have to make it or pay... your rad MIGHT be too small... you should be able to idle all day in the drive way... if its not right and you have the above its too small of a rad

Re: keeping cool [Re: MR_P_BODY] #1439635 05/21/13 12:22 AM 05/21/13 12:22 AM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	Quote: You have a couple things wrong... 2 small fans DONT equal 1 larger fan... the center of the fan DOESNT move air so IF you have to, move the biggest single fan offset so it fits in the area.. next is a shroud ... its a must have... in your set up your gonna have to make it or pay... your rad MIGHT be too small... you should be able to idle all day in the drive way... if its not right and you have the above its too small of a rad Unfortunately that is the biggest fan I could fit in there. At one point with the previous motor. A 500 hp 440. I made a shroud out of 1" aluminum box tubing and a sheet of aluminum with one 14" fan. It never preformed that well so I removed it. The rad tanks are up against the core support so it cant move any further forward but I can block off any openings so air if directed through the rad. The fact it gets so hot at idle in the drive way leads me to believe it's a lack of radiator capacity. Before I look into a different rad I will try to fab another shroud and seal up the air flow. Try the cheap solutions first. 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: Saskabusa] #1439636 05/21/13 12:31 AM 05/21/13 12:31 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Quote: You have a couple things wrong... 2 small fans DONT equal 1 larger fan... the center of the fan DOESNT move air so IF you have to, move the biggest single fan offset so it fits in the area.. next is a shroud ... its a must have... in your set up your gonna have to make it or pay... your rad MIGHT be too small... you should be able to idle all day in the drive way... if its not right and you have the above its too small of a rad Unfortunately that is the biggest fan I could fit in there. At one point with the previous motor. A 500 hp 440. I made a shroud out of 1" aluminum box tubing and a sheet of aluminum with one 14" fan. It never preformed that well so I removed it. The rad tanks are up against the core support so it cant move any further forward but I can block off any openings so air if directed through the rad. The fact it gets so hot at idle in the drive way leads me to believe it's a lack of radiator capacity. Before I look into a different rad I will try to fab another shroud and seal up the air flow. Try the cheap solutions first. You spent thousands of bucks on your engine and now you want to go cheap..... no comment

Re: keeping cool [Re: MR_P_BODY] #1439637 05/21/13 12:36 AM 05/21/13 12:36 AM
Joined: Dec 2005 Posts: 259 Scatchamatoon S Saskabusa OP enthusiast
Saskabusa OP enthusiast S Joined: Dec 2005 Posts: 259 Scatchamatoon	Well it gives me something to do while waiting for a new rad to arrive. 1974 Roadrunner 1967 Charger

Re: keeping cool [Re: Saskabusa] #1439638 05/21/13 01:06 AM 05/21/13 01:06 AM
Joined: Feb 2011 Posts: 4,302 Nebraska 72Swinger master
72Swinger master Joined: Feb 2011 Posts: 4,302 Nebraska	Im guessing your core is in the 26x19 range. One of these would cure the fan problem http://www.etrailer.com/Merchant2/graphics/00000001/pics/d/1/d16826_1000.jpg Last edited by 72Swinger; 05/21/13 01:07 AM. Mopar to the bone!!!

Page 1 of 2

1

2

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1