Feeding Heater Core from Cooling Mod

[Siege]

I posted this on TheChicagoGarage but figured I would post it here as well.

When I installed the cooling mod last week I decided to change how the heater core is fed from the Marauder configuration to the Mustang setup.

The Marauder heater core is fed from the cross-over tube which then runs along the passenger-side head above the exhaust manifold to the heater core.

The Mustang has a fitting in the rear of the passenger cylinder head that feeds the heater core.

With the addition of the rear cylinder cooling mod to a Marauder then the stock feed from the cross-over tube becomes redundant and you can now feed the heater core directly from the rear of the cylinder heads.

Pictures here:
http://www.thechicagogarage.com/forum/marauder-tech/117121-my-5-8-cooling-mod-2.html#post2365941

I can't say if it increases flow past the rear cylinders but it does clean up the engine bay by deleting the heater core feed tube. :beer:

[Dr Caleb]

Nice! Cleans that up very well.

[Blown3.8]

No problems here so far, with this setup.

[Pat]

Siege, I read you write up on Chicago garage but didn't catch on.

Somehow after reading your write up here it all makes sense.

Question - does the cooling mod have sufficient flow alone vs the COT + cooling mod path to service the system with hot water in the wintertime up north without a long wait for cabin heat?

[Siege]

No problem Pat. When I was bleeding the cooling system after the installation I set the heat inside the car to 90 degrees and it was pumping out the heat as quickly as it always has.

The temperature of the coolant leaving the rear of the cylinder head should be the same as what leaves the front of the cylinder head (which then goes into the cross-over tube and would feed the heater core originally).

[screamn]

How important is the cooling mod for a DD like mine?

Also, will I benifit from this mod if only once in a while (once or twice a month) I get on my Rauder hard...freeway driving.

As of right now, no heating issues whatsoever with 61k miles. I further installed a Reish 170 stat along with an Art Car deep sump tranny pan.

I guess what I'm asking is will my motor last longer for example another 100k if I do this mod as opposed to the stock cooling system flow.

I did notice that when I changed my spark plugs in cylinder 7 & 8 (original plugs with 50k miles) they had a little more wear and more build up.

Please chime in with your opinions.....

Thanks!

[Siege]

I decided to install it since I was adding forced induction and was going to be disassembling the engine to the point needed to install the cooling mod anyway.

Honestly, there is no pure data for it or against it. Logically it makes sense that adding an exit at the rear of the cylinder head would allow more even cooling of the cylinders.

What also convinced me was was that Ford added a coolant path for the rear cylinders on the GT500 that join together to meet the heater core inlet.

http://i163.photobucket.com/albums/t304/pichon244/2007svtcoolantcirculationpic.p ng

IMO I didn't worry about it too much when I was N/A but with the addition of the supercharger I felt more comfortable installing it.

:beer:

[screamn]

I decided to install it since I was adding forced induction and was going to be disassembling the engine to the point needed to install the cooling mod anyway.

Honestly, there is no pure data for it or against it. Logically it makes sense that adding an exit at the rear of the cylinder head would allow more even cooling of the cylinders.

What also convinced me was was that Ford added a coolant path for the rear cylinders on the GT500 that join together to meet the heater core inlet.

http://i163.photobucket.com/albums/t304/pichon244/2007svtcoolantcirculationpic.p ng

IMO I didn't worry about it too much when I was N/A but with the addition of the supercharger I felt more comfortable installing it.

:beer:

Thanks for the reply.

I guess this is an added safety and piece of mind mod for N/A.