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coolant lines

vwrallycar - April 26th, 2009 at 08:27 PM

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 - April 26th, 2009 at 09:50 PM

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.

Camo - May 1st, 2009 at 02:31 PM

Try this website : CLICK HERE

Hope this helps, Kevin

rocknrob - May 1st, 2009 at 06:29 PM

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 - May 1st, 2009 at 07:26 PM

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 :crazy:

GeorgeL - May 8th, 2009 at 06:30 AM

Quote:

Originally posted by ian.mezz
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 :crazy:

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.

Mick058 - May 8th, 2009 at 08:06 AM

You can get them enough out of the way under the car -better temps too, wind passing by them, hot not next to cold.

1303Steve - May 8th, 2009 at 09:21 AM

Hi

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

Steve

gerrelt - May 9th, 2009 at 03:35 AM

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 - May 9th, 2009 at 07:55 AM

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

vwrallycar - May 9th, 2009 at 11:06 AM

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

GeorgeL - May 10th, 2009 at 08:43 AM

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!