Heater loop bypass option for supercharged guys

Vwsaabvt

Well-Known Member
Looking at threads for the heater core pipe bypass and it looks like people have looped the pipes with hose, taken the pipes out and installed 90* fittings and hose, or used the CBM Motorsports housing which removes the thermostat.

I bypassed the route of the 2 pipes internally by just drilling through the passage that comes out of the head down into the lower portion where the coolant ends up anyways with the heater core loop in place.

Then tapped the pipe holes to 1/2 npt for plugs. Now there is nothing on the outside of the housing, you keep the thermostat, and your coolant pasage for the head is not blocked off.
 

Attachments

Ross

Goblin Guru
Nice modification. I hadn't heard of this before, but it will clean up the heater loop nicely. Of course a water cooled turbo would put those lines to a good use too.
 

WYGoblin

Active Member
I was actually thinking of using those lines for a heated air/oil seperator to try to keep oil from entering the intake and gumming up the intake valves.
 

HOBGOBLIN

Member
Looking at threads for the heater core pipe bypass and it looks like people have looped the pipes with hose, taken the pipes out and installed 90* fittings and hose, or used the CBM Motorsports housing which removes the thermostat.

I bypassed the route of the 2 pipes internally by just drilling through the passage that comes out of the head down into the lower portion where the coolant ends up anyways with the heater core loop in place.

Then tapped the pipe holes to 1/2 npt for plugs. Now there is nothing on the outside of the housing, you keep the thermostat, and your coolant pasage for the head is not blocked off.
How did this mod work out for you? I am thinking about going this route.
 

Peregrinus

Active Member
I went ahead and did this on my spare water neck, I'll install it next time I drain the coolant and see how it goes
 

Peregrinus

Active Member
seems like it's working fine, I have ran it a few times but have not driven it yet.
Yeah I looked at it yesterday after I drilled it out, looks like it should work just fine, I'm just waiting on a 1/2" npt thread tap to come and some nice plugs from Amazon. Glad to hear it's working though!
 
Last edited:
Top