Automatic Transmission Cooler
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Robb, you have plenty of cooling for your 700R4. Granted that 700Rs are inherently weak and prone to have failures due to heat..since you have the 4l80e stuff in it, you will be good to go...
Just to add to this thread, this is what I am using:
http://www.summitracing.com/parts/BMM-70274/?rtype=10
Mounted laying flat. JUST clears the hood when its open. I already had the AC condensor in front of the radiator so I didnt want to block it.
Air blows through from the bottom:
Over 8k miles on this setup and tons of racing...no problems at all... tranny fluid always looks and smells new.
Just to add to this thread, this is what I am using:
http://www.summitracing.com/parts/BMM-70274/?rtype=10
Mounted laying flat. JUST clears the hood when its open. I already had the AC condensor in front of the radiator so I didnt want to block it.
Air blows through from the bottom:
Over 8k miles on this setup and tons of racing...no problems at all... tranny fluid always looks and smells new.
Melting Slicks
Joined: Mar 2008
Posts: 2,989
Likes: 198
From: Meriden CT
Last edited by SH-60B; Jan 19, 2012 at 05:37 PM.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Wow, I went from panic to placid over this thread. I made the mistake of choosing not to use the radiator to cool the trans.
My reasoning was that I want the radiator to be dedicated to cooling the 700+ HP small block engine - I don't want the trans to add to that cooling requirement and I expect the engine will still run pretty hot so I don't want the trans cooling limited by the engine.
Now I see my logic is incomplete without mentioning the smoothing effect the efficiency of fluid to fluid heat exchange provides.
The trans is a 700r4 with (a stronger version of) 4L80e internals and a 10" 3200 stall TC.
I'll be running dual B&M 70268 11" X 7˝" Super Coolers in series with (2) 9" pusher Spal fans thermostatically switched at 185on/165off. mounted about 1˝" in front of the radiator.
żżWill this be enough to get the job done?? (I imagine the answer is "It depends") but I'd like to hear you guys weigh in.
ps. MrVette, you are a transmission common sense rockstar(complete with the rockstar hair)!
My reasoning was that I want the radiator to be dedicated to cooling the 700+ HP small block engine - I don't want the trans to add to that cooling requirement and I expect the engine will still run pretty hot so I don't want the trans cooling limited by the engine.
Now I see my logic is incomplete without mentioning the smoothing effect the efficiency of fluid to fluid heat exchange provides.
The trans is a 700r4 with (a stronger version of) 4L80e internals and a 10" 3200 stall TC.
I'll be running dual B&M 70268 11" X 7˝" Super Coolers in series with (2) 9" pusher Spal fans thermostatically switched at 185on/165off. mounted about 1˝" in front of the radiator.
żżWill this be enough to get the job done?? (I imagine the answer is "It depends") but I'd like to hear you guys weigh in.
ps. MrVette, you are a transmission common sense rockstar(complete with the rockstar hair)!
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
having said that, in the motor home rebuild project, there is a pressure gauge plumbed in, and a temp gauge in the pan....but it's a 8000 lbs GVW on a 700 r4 350 ci engine....
a considerable different load factor than a silly vette at less than 1/2 the vehicle weight, don't forget the square law of physics....
Le Mans Master
Joined: Oct 2007
Posts: 7,441
Likes: 963
From: Tennessee/Rhode Island
You don't need to run the cooler in conjunction with the radiator !! I have run external coolers alone for years with zero problems on 3 other cars. #1 enemy of transmissions is heat!
Moderator Emeritus
Joined: Jun 2002
Posts: 46,133
Likes: 111
From: Maryville Tn
CI 5 thru 12 Veteran
St. Jude Donor '09 thru '23
NCM Sinkhole Donor
Stay on topic gentlemen and end the bs posts, or I see vacations from the forum in the offending poster's future.
