Heater Core Lines

vex · 04-26-2009, 07:58 PM

Is it mandatory to connect the heater inlet line to the radiator?

Here's my situation: I have an aftermarket radiator, but no T-fitting that can mate the line from the firewall back to the radiator and water pump inlet (at least from what I have found. If some one knows of a simple fix for that then I'm all ears). I'm currently running a T-fitting from the heater inlet on the fire wall to the turbo, and a T-fitting on the return line from the fire wall to the turbo.

I'm thinking that I will need to run the line from the heater inlet to the radiator so that cold coolant can be circulated directly into the heater and turbo. Is that thinking accurate? Could I get away with no hooking up that line and not running it to the radiator? The coolant temperature would get warmer, but would not be excessively hotter than normal I wouldn't think.

Suggestions?

***TitaniumTT*** · 04-26-2009, 09:23 PM

You have to connect the heater core outlet to the inlet of waterpump in some way shape or form. I ran mine up the framerail, Tee'd it with my AST, and connected it to a -10 AN bung that I welded onto the the lower radiator hose on the waterpump housing.

I wouldn't mess with the lines on the turbo side of things, the difference in diameter might screw with the flow of coolant through the turbo. I'm no fluid engineer, but I think it may cause problems

vex · 04-26-2009, 09:34 PM

Quote:

Originally Posted by TitaniumTT

You have to connect the heater core outlet to the inlet of waterpump in some way shape or form. I ran mine up the framerail, Tee'd it with my AST, and connected it to a -10 AN bung that I welded onto the the lower radiator hose on the waterpump housing.

Yeah, I figured as much. Guess that means I have to figure out how I'm going to T into the inlet of the water pump then.

Quote:

I wouldn't mess with the lines on the turbo side of things, the difference in diameter might screw with the flow of coolant through the turbo. I'm no fluid engineer, but I think it may cause problems

The lines for the turbo are a Universal line kit from Turbonetics Wasn't really planning on messing with them.

***TitaniumTT*** · 04-27-2009, 06:17 AM

Check som chandlery stores. Fitting like that are common in the marine world. Might get lucky.

vex · 04-27-2009, 09:10 AM

Quote:

Originally Posted by TitaniumTT

Check som chandlery stores. Fitting like that are common in the marine world. Might get lucky.

suck, I'm land locked out here, there's no marine stores here that I know of. I'll bounce it off some townies though and see what they come up with.

Max777 · 04-29-2009, 01:34 AM

dude, I saw a guy who custom fit some wierd alum radiator to an FC, he cut the lower hose, got a metal pipe that fit in the splice,, and welded a smaller metal pipe onto that.

I would just do this, it's a lot simpler.

04-26-2009, 07:58 PM	#1
vex RCC Loves Me Not You Join Date: Jul 2008 Location: Influx. Posts: 2,113 Rep Power: 19	Heater Core Lines Is it mandatory to connect the heater inlet line to the radiator? Here's my situation: I have an aftermarket radiator, but no T-fitting that can mate the line from the firewall back to the radiator and water pump inlet (at least from what I have found. If some one knows of a simple fix for that then I'm all ears). I'm currently running a T-fitting from the heater inlet on the fire wall to the turbo, and a T-fitting on the return line from the fire wall to the turbo. I'm thinking that I will need to run the line from the heater inlet to the radiator so that cold coolant can be circulated directly into the heater and turbo. Is that thinking accurate? Could I get away with no hooking up that line and not running it to the radiator? The coolant temperature would get warmer, but would not be excessively hotter than normal I wouldn't think. Suggestions? __________________ The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group

04-26-2009, 09:23 PM	#2
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	You have to connect the heater core outlet to the inlet of waterpump in some way shape or form. I ran mine up the framerail, Tee'd it with my AST, and connected it to a -10 AN bung that I welded onto the the lower radiator hose on the waterpump housing. I wouldn't mess with the lines on the turbo side of things, the difference in diameter might screw with the flow of coolant through the turbo. I'm no fluid engineer, but I think it may cause problems __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

04-27-2009, 06:17 AM	#4
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	Check som chandlery stores. Fitting like that are common in the marine world. Might get lucky. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

04-29-2009, 01:34 AM	#6
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	dude, I saw a guy who custom fit some wierd alum radiator to an FC, he cut the lower hose, got a metal pipe that fit in the splice,, and welded a smaller metal pipe onto that. I would just do this, it's a lot simpler. __________________ Rotaries:They are NOT that complicated!