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coolant lines

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vwrallycar Insano Dub Head

721 posts · joined Sep 2002 ·

#709150
can anyone please tell me where they run their coolant piping . has anyone run them through the tunnel?
post some pics as well please
i wanna go through the tunnel, but wanna make sure im on the right track

ratbug aka toddy101

439 posts · joined Jan 2003 ·

#709175
I got my heater coolant lines up the tunnel, along with the extra fuel lines, new hydraulic brake and clutch lines, plus all the standard vw stuff inside there. Its pretty crowded, there's no way I would have got the main coolant pipes in there. Also you would have to pay attention to the big holes you cut in the chassis front and back where the pipes come out. Also securing them in there, you also want them insulated so your tunnel doesnt get hot, and the metal pipes shouldnt touch any metal of the car and be electrically isolated if possible, otherwise you could get electrolysis issues esp if you use stainless pipes.
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rocknrob Insano Dub Head

844 posts · joined Dec 2003 ·

#710097
I even took a load of rubbish to the tip on the weekend in it & I have never hit the coolant lines.


OK Jak you have convinced me...i have an EJ22 in my kombi but now i really think i need a wrx donk to go to the dump!

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#710103
Don't put coolant lines inside the tunnel,for the simple fact that if you get a leak it would be a bitch to fix.
Remember the Radiator water is about 90deg, your car would be nice and warm inside. Just try and hold a normal cars hot radiator hose with your hand to get a idea of the heat.
inside of the tunnel would make a nice bake oven🤪
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

GeorgeL Officially Full-On Dubber

231 posts · joined Feb 2006 ·

#711142
ian.mezz wrote:Don't put coolant lines inside the tunnel,for the simple fact that if you get a leak it would be a bitch to fix.
Remember the Radiator water is about 90deg, your car would be nice and warm inside. Just try and hold a normal cars hot radiator hose with your hand to get a idea of the heat.
inside of the tunnel would make a nice bake oven🤪
I have heard of a few folks who have gone to the trouble of putting the lines in the tunnel, and they don't don't report any undue heating. They do report that it is a challenge to get the lines through the tunnel, though!

I wouldn't do it simply from the viewpoint of maintainence. A leak would be bad news.

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#711165
Hi

On my old wasser bug I ran 1.5 inch lines under the chassis following the heater channel bolts.



Steve

gerrelt Slammed & Awesome Dubber

88 posts · joined May 2005 ·

#711304
I used iron exhaust pipes, and bend/welded them in to shape.
They are routed under the main tunnel:



More on the fabrication here: LINK


Greetings,
Gerrelt.

555bug WRX Bug Boy

1,123 posts · joined Aug 2002 ·

#711313
i've gone for 1-1/4 stainless through the tunnel

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vwrallycar Insano Dub Head

721 posts · joined Sep 2002 ·

#711330
thanks for the help everyone, will run them under the car now

GeorgeL Officially Full-On Dubber

231 posts · joined Feb 2006 ·

#711457
Y'know, finned tubing in the heater channel might be just the ticket! Add a air blower under the back seat and you've got an instant heater! 🙂