AN Line for lower radiator hose

Dave Steltz · 12-23-2007, 05:09 PM

I will be needing to change over to a braided line for the lower radiator hose this year...What size is "normal"...I think today the lower hose is 1 1/4...so what does that come out to in AN hose....

FED 387 · 12-23-2007, 06:02 PM

Easiest way to convert any AN number to inches or vise versa is to remember that the --(dash) number is the number of 1/16 of an inch in the AN size --So 1 1/4 inches is16 1/16 for 1 inch plus 4/16 for the next 1/4 for a total of 20/16 of an inch for 1 1/4 inch---You will need a --20 hose and fittings for your application---Understand???? Hope this helps---Comp 387

krugracing12 · 12-23-2007, 07:19 PM

Dave

I would start by seeing what the largest size AN adapter the radiator will accept. If you are welding that fitting on/in, I would see what the largest size AN adapter the pump will accept. I think Bigger is Better.

Bill

Johnny · 12-23-2007, 08:52 PM

Quote:

Originally Posted by krugracing12

Dave

I think Bigger is Better.

Bill

You would you weirdo. Always knew that firemen were a different breed.

As far as the conversion goes...for a gas application I would run -12 or -16 (pricey)...for alcohol I would run -10 or -12. It depends on you vehicle. If you are in a digger...go with the smaller...in a door car with a closed nose you may need the extra coolant capacity and choose the bigger line. You have to be careful not to move the water too fast. You could always go bigger than run restictors to help slow the flow.

GaryGoFast · 12-23-2007, 09:03 PM

[QUOTE=.

As far as the conversion goes...for a gas application I would run -12 or -16 (pricey)...for alcohol I would run -10 or -12. It depends on you vehicle. If you are in a digger...go with the smaller...in a door car with a closed nose you may need the extra coolant capacity and choose the bigger line. You have to be careful not to move the water too fast. You could always go bigger than run restictors to help slow the flow.[/QUOTE]
.

Bingo,

gary

krugracing12 · 12-23-2007, 10:02 PM

Dave

If you are starting from scratch it would make sense to put the biggest size in the first time. I have never heard any one complain about thier car cooling off too fast between rounds. You can always warm the car easier than you cool it.

If you try to "COP" out and save a few bucks, it may prove costly in the end.

Bill

12-23-2007, 05:09 PM	#1
Dave Steltz Member Join Date: Nov 2003 Posts: 323 Likes: 0 Liked 0 Times in 0 Posts	AN Line for lower radiator hose I will be needing to change over to a braided line for the lower radiator hose this year...What size is "normal"...I think today the lower hose is 1 1/4...so what does that come out to in AN hose.... __________________ Dave Steltz 135G SG/SP/SST BIAECH Racing Team

12-23-2007, 06:02 PM	#2
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,409 Likes: 506 Liked 329 Times in 177 Posts	Re: AN Line for lower radiator hose Easiest way to convert any AN number to inches or vise versa is to remember that the --(dash) number is the number of 1/16 of an inch in the AN size --So 1 1/4 inches is16 1/16 for 1 inch plus 4/16 for the next 1/4 for a total of 20/16 of an inch for 1 1/4 inch---You will need a --20 hose and fittings for your application---Understand???? Hope this helps---Comp 387

12-23-2007, 07:19 PM	#3
krugracing12 Member Join Date: Dec 2006 Posts: 171 Likes: 0 Liked 0 Times in 0 Posts	Re: AN Line for lower radiator hose Dave I would start by seeing what the largest size AN adapter the radiator will accept. If you are welding that fitting on/in, I would see what the largest size AN adapter the pump will accept. I think Bigger is Better. Bill

12-23-2007, 09:03 PM	#5
GaryGoFast Senior Member Join Date: Nov 2003 Location: New York Posts: 804 Likes: 0 Liked 1 Time in 1 Post	Re: AN Line for lower radiator hose [QUOTE=. As far as the conversion goes...for a gas application I would run -12 or -16 (pricey)...for alcohol I would run -10 or -12. It depends on you vehicle. If you are in a digger...go with the smaller...in a door car with a closed nose you may need the extra coolant capacity and choose the bigger line. You have to be careful not to move the water too fast. You could always go bigger than run restictors to help slow the flow.[/QUOTE] . Bingo, gary

12-23-2007, 10:02 PM	#6
krugracing12 Member Join Date: Dec 2006 Posts: 171 Likes: 0 Liked 0 Times in 0 Posts	Re: AN Line for lower radiator hose Dave If you are starting from scratch it would make sense to put the biggest size in the first time. I have never heard any one complain about thier car cooling off too fast between rounds. You can always warm the car easier than you cool it. If you try to "COP" out and save a few bucks, it may prove costly in the end. Bill