[turbo minivan]

i just successfuly reverse cooled my 2.5T!!!! im very excited!
check it out!
reverse flow cooling (stickied)

 

[tryingbe]

Did you relocate the thermostat?

 

[turbo minivan]

^ there is no thermostat. the temp is controlled by a thermal switch and a 2000cfm slim fan

 

[tryingbe]

Properly function cooling system for a street car needs a thermostat. You want the coolant system get up to operation temperature asap.

 

[Ondonti]

Are you running a restrictor? Otherwise its not really a good idea. Controlling temperature is only one reason why you need a thermostat/restrictor. You need coolant pressure in the block to help stop boiling around hot spots.

 

[Reaper1]

You need to post the pictures here! I can't see any on the other forum...

 

[Ubmbass]

So, where would one buy a pump like that?

 

[GLHNSLHT2]

been planning on doing this at some point for years. Be interesting to see how someone else did it. I've got my idea's and being able to custom machine aluminum is a plus. +1 on needing a Tstat.

 

[Timmay2]

Where did you study thermodynamics?

Post your results after 200k miles, im curious to see if it works as well as the stock system.

 

[GLHNSLHT2]

heads like to be cold, rings like to be warm. So you shove the cold coolant down through the top and out the bottom.

 

[turbo minivan]

^yup!
my friend running 498hp did this years ago and has never had trouble not running a thermostat. it DOES heat up to running temps, its just controlled by the fan now instead of a thermostat. also, it seems to heat up in the same amount of time as it did with a thermostat on the old system.

 

[moparfwdsleeper]

Pics!!!

 

[Reaper1]

^^iawtp!!

 

[turbo minivan]

soon, i gotta get some good finished pics. the ones on the linked site are just parts pics and suck.

 

[crazymadbastard]

the pics did not show for me on that site. "Cool: idea.

 

[Reaper1]

:needpics:

 

[Screamin4banger]

Reverse cooling?
Turbododge people have been doing that for years! :thumb:

Its called using the wrong water pump

Just Kidding around

I also would like to see pics
:needpics:

 

[gkcooper]

Is this the pump you are using?

Your Parts Search Returned 2 Part(s)

Found this on Ebay:

eBay Motors: Bosch GM aux heater coolant water pump BMW MB Audi VW (item 370038786174 end time May-31-08 23:37:25 PDT)

 

[gkcooper]

How about using a 90 degree thermostat housing on the transmission side of the head for a #4 cooling mod, block off the normal thermostat housing, and using a 90 degree thermostat housing on the block with a temperature sensor bung?

Here's one for a Ford from Jeg's:

Mr. Gasket 2664 - Mr. Gasket Chrome Thermostat Housings - JEGS

 

[FFWD]

If you have an electric fan, and an intercooler in front of your radiator, you do not need a thermostat. If the fan isn't on, you're only losing a small amount of heat though actual radiation. We've been running reverse flow for a few years, and the car doesn't take any longer to heat up.

All of the pressure in a cooling system is caused by heat expansion. The design of every TD water pump(and most likely any W/P) make it impossible to create positive pressure. All the W/P is for , is to push the coolant through everything.

The #4 coolant mod is obsolete if you reverse flow.

You don't need to be able to machine aluminum, just be able to weld it. Our first block bung was a scrapyard elbow welded to a piece of aluminum plate, surfaced with a file and a belt sander.