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Cooling line size with Radiator mounted remote water pump? #2467389
03/16/18 04:40 PM
03/16/18 04:40 PM
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner Offline OP
mopar
Quickrunner  Offline OP
mopar

Joined: Mar 2010
Posts: 625
Indianapolis In. usa
I have a motor plate for gen3 hemi that's machined with one #12 ORB size outlet/return and two #10 sized inlets. Getting ready to have a custom radiator made with Meziere WP362 mounted to it. The pump has 2 outlets -16 AN O ring threaded. So there will be some step up or down in size to the flare adaptors. So couple questions what would be recommended minimum hose sizes for the 2 inlets and the one return hose? Would -12 hose be big enough for the two inlet hoses from pump to motor? And for the top hose the return hose the -12 ORB adapted to -16 hose for the return to radiator?


05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project



Missin' my 9 second 70 runner!
Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2467395
03/16/18 04:48 PM
03/16/18 04:48 PM
Joined: Jan 2008
Posts: 2,363
Cotati, CA
Dave Hall Offline
top fuel
Dave Hall  Offline
top fuel

Joined: Jan 2008
Posts: 2,363
Cotati, CA
Sounds good to me! The bigger the hose the more capacity. I don't think it will have any effect on flow.

Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2467402
03/16/18 04:53 PM
03/16/18 04:53 PM
Joined: Jan 2003
Posts: 19,304
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,304
Las Vegas
I ran -12 hoses all around on 1050-1300+ HP. Never an issues with cooling at all. The S/St car used two -12 with a single -16 return, although at the time we have to make that adapter as no one had one available back then. The other cars use -12 on each side, x2


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: Cooling line size with Radiator mounted remote water pump? [Re: Al_Alguire] #2467417
03/16/18 05:20 PM
03/16/18 05:20 PM
Joined: Jan 2004
Posts: 4,540
Motor City
6
6PKRTSE Offline
master
6PKRTSE  Offline
master
6

Joined: Jan 2004
Posts: 4,540
Motor City
I went with -20 An fittings on my radiator only because my car even though almost 1000 H.P. on Motor is still street driven. But my Mezeire water pump is within the aluminum housing & not mounted to the rad like you are doing.

rsz_20161201_200820_003.jpg

1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2467517
03/16/18 09:57 PM
03/16/18 09:57 PM
Joined: Jan 2003
Posts: 19,304
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,304
Las Vegas
Don't have many pics here in DC but here is the Predator


The Cuda and cant se much but the fitting we welded up to go from a single -16 to 2 -12's



And the 99Hemi in the other Cuda



"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2468087
03/18/18 01:26 PM
03/18/18 01:26 PM
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner Offline OP
mopar
Quickrunner  Offline OP
mopar

Joined: Mar 2010
Posts: 625
Indianapolis In. usa
What brand do you guys prefer for hose, fitting, and adaptors? Want to use the same brand on the entire car for fuel , coolant, trans etc.... Want to use all black on this build. I hear the Teflon lined is the way to go now but hear some brands are better and more flexible. What is best and who is best source?


05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project



Missin' my 9 second 70 runner!
Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2468096
03/18/18 01:55 PM
03/18/18 01:55 PM
Joined: Jun 2004
Posts: 294
Memphis TN
B
B1HEAD_USER Offline
enthusiast
B1HEAD_USER  Offline
enthusiast
B

Joined: Jun 2004
Posts: 294
Memphis TN
I have a radiator mounted pump and used a Shogun water manifold which has -8 fittings on it. Drag race only never a problem with the -8 lines.

Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2468118
03/18/18 02:53 PM
03/18/18 02:53 PM
Joined: Jan 2003
Posts: 19,304
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,304
Las Vegas
I have used Earls for years it is all on my Stratus, fuel, cooling, dry sump and trans. The dragster we switched to Fragola and have been happy with it as well. Also after the fire in the Barracuda I used all XRP stuff as a local shop sells it and was happy with it as well. Stay away from the Jeg's and Summit house brand stuff IMO. We have had some customers supply it for their builds and IMO it is not as good of a product. We usually always have a fitting or two that has an issue.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2469632
03/21/18 11:55 AM
03/21/18 11:55 AM
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner Offline OP
mopar
Quickrunner  Offline OP
mopar

Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Yes, I have had some bad experience with Jeg/summit brand fittings. I see XRP & Fragola have a nice catalog on line, the Earls is not very well laid out.

I have decided to use weld on bungs on the motorplate and go with a -20 return after talking with my radiator builder. And -16 for the 2 block feeds from the Meziere pump as it is already -16 ORB outlets. I really didn't want to sacrifice any flow capability with the spallish -10 & -12 thread size my motorplate came with

Plate2.jpg
Last edited by Quickrunner; 03/21/18 11:55 AM.

05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project



Missin' my 9 second 70 runner!
Re: Cooling line size with Radiator mounted remote water pump? [Re: Quickrunner] #2470056
03/21/18 10:28 PM
03/21/18 10:28 PM
Joined: Jan 2004
Posts: 4,540
Motor City
6
6PKRTSE Offline
master
6PKRTSE  Offline
master
6

Joined: Jan 2004
Posts: 4,540
Motor City
Almost all of mine are Fragola. They are the best as a Company and quality. Everyone doesn't all make the same configurations so I do have a few other XRP and Earls fittings mixed in where needed.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.






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