B&M 70274 Cooler and Braided hose install!!
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B&M 70274 Cooler and Braided hose install!!
I had an incident involving hoses, hose clamps, and 7 quarts of transmission fluid. So I decided it was time to go full braided hose and AN fittings from the transmission to the cooler.
My old cooler had the nipple connectors. This would not work for my master plan. So I had to buy one with NPT threads. B&M's 70274 has 1/2 NPT female threads. It is also freaken huge. See picture. Also to note in the picture are the 1/2 NPT to -6 AN adapters sticking out of the top of the cooler. These are needed to go to AN hose ends. Do not forget to use a thread sealant here, this is not a leak proof connection. I used a liquid sealant. Use two wrenches to tighten. You do not want to break the cooler welds.
Then you need two straight AN hose ends, hose, and then two 45 degree hose ends to go to the transmission. 45 is a tight fit to the transmission tunnel but it works. To go from the AN hose ends to the transmission you will need another pair of adapters. -6 AN to 1/4 NPS. Make sure to get the right adapter as the trans case is NPS not NPT.
Then you have to route the lines from the transmission to your coolers location. I picked in front of the radiator to take advantage of the fans and the airflow. Once the lines are ran you need to go back and secure them starting from the transmission. You have to make sure to keep the lines away from the headers. Notice the cute little bracket I made. I drilled a 3/8 hole in a piece of spare metal and ran the bellhousing bolt through it. You have to make the hole slightly bigger than 3/8th to use this bolt. I then used zipties to keep the lines together.
Your extra slack goes up front. At this point you may have some stupid little mounting kit. I had one from a crappy little hayden cooler. So I put my little foam pads on and installed the cooler on the radiator with zip tie thingys.
and some complete pictures
My summit parts list for those who want to copy.
AER-FBM4412 -06 FITTING-BLACK $9.95 2 $19.90
AER-FBM4422 -06AN FITTING 45 DEG BLACK $17.88 2 $35.76
AER-FBM5013 -06AN ADAPTER BLACK $4.25 2 $8.50
AER-FCA0620 -6 AN HOSE 20 FT LENGTH 1 $95.95
BMM-70274 SUPERCOOLER R 1 $93.95
RUS-640520 TRANSMISSION FITTINGS PAIR 1 $21.99
And one last note. I recommend taking out the transmission mount and dropping the tranny down a little bit. I tried to do everything without doing this. It was a pain in the *** getting the old lines out and the new fittings in. Only to find out I had to drop the transmission a bit to get the top 45 AN hose end to thread. So just drop it from the start! :/
My old cooler had the nipple connectors. This would not work for my master plan. So I had to buy one with NPT threads. B&M's 70274 has 1/2 NPT female threads. It is also freaken huge. See picture. Also to note in the picture are the 1/2 NPT to -6 AN adapters sticking out of the top of the cooler. These are needed to go to AN hose ends. Do not forget to use a thread sealant here, this is not a leak proof connection. I used a liquid sealant. Use two wrenches to tighten. You do not want to break the cooler welds.
Then you need two straight AN hose ends, hose, and then two 45 degree hose ends to go to the transmission. 45 is a tight fit to the transmission tunnel but it works. To go from the AN hose ends to the transmission you will need another pair of adapters. -6 AN to 1/4 NPS. Make sure to get the right adapter as the trans case is NPS not NPT.
Then you have to route the lines from the transmission to your coolers location. I picked in front of the radiator to take advantage of the fans and the airflow. Once the lines are ran you need to go back and secure them starting from the transmission. You have to make sure to keep the lines away from the headers. Notice the cute little bracket I made. I drilled a 3/8 hole in a piece of spare metal and ran the bellhousing bolt through it. You have to make the hole slightly bigger than 3/8th to use this bolt. I then used zipties to keep the lines together.
Your extra slack goes up front. At this point you may have some stupid little mounting kit. I had one from a crappy little hayden cooler. So I put my little foam pads on and installed the cooler on the radiator with zip tie thingys.
and some complete pictures
My summit parts list for those who want to copy.
AER-FBM4412 -06 FITTING-BLACK $9.95 2 $19.90
AER-FBM4422 -06AN FITTING 45 DEG BLACK $17.88 2 $35.76
AER-FBM5013 -06AN ADAPTER BLACK $4.25 2 $8.50
AER-FCA0620 -6 AN HOSE 20 FT LENGTH 1 $95.95
BMM-70274 SUPERCOOLER R 1 $93.95
RUS-640520 TRANSMISSION FITTINGS PAIR 1 $21.99
And one last note. I recommend taking out the transmission mount and dropping the tranny down a little bit. I tried to do everything without doing this. It was a pain in the *** getting the old lines out and the new fittings in. Only to find out I had to drop the transmission a bit to get the top 45 AN hose end to thread. So just drop it from the start! :/
Last edited by drone; 11-12-2015 at 12:45 PM.
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http://www.summitracing.com/parts/SUM-230620/
-6 braided for $20 cheaper. Just thought Id ad for anyone looking for cheaper.
-6 braided for $20 cheaper. Just thought Id ad for anyone looking for cheaper.
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#8
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Thanks guys
Not other kinds that I know of, but this thread is about braided setups. Braided hose setups in general are not cheap. If you want cheap then you should stick with the nipple coolers and run a hose and clamp setup. Maybe there is a 1/2 NPT to barb fitting, I dont know.
This can be done with 15ft of hose though. I got 20 and had 7 or 8 feet extra. You can get a cheaper hose too. But you get what you pay for. Ive heard of cheaper fittings leaking and such.
This can be done with 15ft of hose though. I got 20 and had 7 or 8 feet extra. You can get a cheaper hose too. But you get what you pay for. Ive heard of cheaper fittings leaking and such.
Last edited by drone; 07-08-2011 at 03:54 PM.
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I just got finished with the same setup but I'm running a TH350. I used rubberlined clamps and mounted them on the framerail.
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thats funny because I saw those clamps today at true value and thought those would work good too. But my headers are all in the way to make any use of the frame rail.
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Well I had the motor out so it was easy for me. I'm running 1 7/8" Kooks and I've also removed the AC box so there is a little more room
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Thanks for this. I had been on the fence as to which route to go with a cooler. I originally wanted the 70264, for fitment and price, but this looks like a huge step in the way of a quailty job and a better cooler as well. $290 shipped for all parts in your setup vs $70 for the 70264 is a big difference. Twice the cooler for four times the price, but i think its absolutely worth it for a quailty install.
Or is this setup simply overkill for my minimally modded car?
Or is this setup simply overkill for my minimally modded car?
#14
I don't think it would be overkill. Do you have a stall? The only thing to worry about would be over cooling of the trani. That is one of the reasons some of the guys claim running inline with the radiator trans cooler is a better option, esp for people that drive in the winter in colder climates. I am just wrapping up my install and I will tell you it’s a lot neater and a lot more reliable feeling than hard lines to radiator, rubber to extra cooler, hard lines back ect.
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I don't think it would be overkill. Do you have a stall? The only thing to worry about would be over cooling of the trani. That is one of the reasons some of the guys claim running inline with the radiator trans cooler is a better option, esp for people that drive in the winter in colder climates....
Last edited by xBrian; 07-14-2011 at 11:49 AM. Reason: Stupid iphone spell check
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This is absolutely worth it. I ran the 70264 for two years with the hose and clamps. I was driving along and BAM. Smoke came screaming out of the car. Pulled over and trans fluid was EVERYWHERE. One of the rubber hoses came off. I lost 7 quarts in 30 seconds. I had to get my car towed back to my house. I put the hose back on at my house but I could not bring myself to put more fluid back in the transmission. I would always be scared of it happening again.
The cooler is twice as big. I couldnt hot lap my car at the track without losing ET. Once that 4k stall gets hot it gets slow.
It also has the custom/coolness factor. Braided lines look good and hose clamps look sucky. Its nice knowing you did a custom setup.
This is taking proper care of your transmission. Worth every penny.
You can also get a smaller cooler that accepts a 1/2 NPT fitting. 70273 is like half the size and cheaper.
The cooler is twice as big. I couldnt hot lap my car at the track without losing ET. Once that 4k stall gets hot it gets slow.
It also has the custom/coolness factor. Braided lines look good and hose clamps look sucky. Its nice knowing you did a custom setup.
This is taking proper care of your transmission. Worth every penny.
You can also get a smaller cooler that accepts a 1/2 NPT fitting. 70273 is like half the size and cheaper.
Last edited by drone; 07-14-2011 at 06:03 PM.
#18
Can you run the hose from the trans to the radiator and from the radiator to the cooler and from the cooler to the trans? Or will the cooling be more or less the same?
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I just added a second 30 row stacked cooler in parallel this weekend mounted the same on the other side. Gonna check my temps tomorrow to see how it further dropped my temps returning to the trans.
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If your going through the trouble of a braided setup then that means you are getting a big cooler. No need for the radiator cooler. And I have no idea how you could hook that up with braided hose. That also adds more places for leaks. The posted method is simple and effective.