engine and drivetrain Need advice on rad size and thermo fan

[Driv3r]

I'm having a nightmare trying to source a suitable solution for my turbo build. I need to buy either off the shelf or custom rad that could fit with thermo fan inside the engine bay as I have already used the nose for oil and inter cooler.

 

Has anyone installed thermo fan on a FMI turbo 02? Keeping the stock fan is not an option. Turbo 02s, any suggestion?

 

Cheers

[Driv3r]

bump!

 

Really need to know how any of you M10 turbo 02s with FMI and thermo fan resolved the issue of fan space.

Edited May 24, 2016 by Driv3r

[roadhog0]

No one that I know of has a puller fan on their turbo setup, they all run pusher fans. There really isn't enough room in a 2002 engine bay in stock trim for a radiator and a puller fan.

[Driv3r]

Yes but where do they install the pusher fan? There's no space in front of the radiator, it's taken by intercooler and oil cooler. I can fit two 7" puller fans on each lower side of the water pump pulley but not sure if that's recommended. They pull 30 amps combined.

Edited May 24, 2016 by Driv3r

[Simeon]

7 hours ago, Driv3r said:

Yes but where do they install the pusher fan? There's no space in front of the radiator, it's taken by intercooler and oil cooler. I can fit two 7" puller fans on each lower side of the water pump pulley but not sure if that's recommended. They pull 30 amps combined.

 

Do you know what CFM they will pull?  Puller fans are always more efficient but you might struggle since you will miss so much area of the radiator.

 

Can you modify the nose to allow the radiator to be mounted further forward? 

[jimk]

1 hour ago, Simeon said:

 Puller fans are always more efficient

 

Probably a subject more for curbside argument than any real benefit because pulling 1200cfm of heated air does not move as much air mass as pushing a bit less cfm of cold air. 

[M3M3M3]

Move the oil and inter coolers. .....

[Driv3r]

2 hours ago, Simeon said:

 

Do you know what CFM they will pull?  Puller fans are always more efficient but you might struggle since you will miss so much area of the radiator.

 

Can you modify the nose to allow the radiator to be mounted further forward? 

 

1700 cfm combined. Even if I cut the front, there is still no space. Intercooler and oil cooler are already there.

1 hour ago, jimk said:

Probably a subject more for curbside argument than any real benefit because pulling 1200cfm of heated air does not move as much air mass as pushing a bit less cfm of cold air. 

how is a puller fan pulling heated air from the front nose of the car? Isn't puller fan inside between the pulley and rad, pulling the cold air from outside?

37 minutes ago, mlytle said:

Move the oil and inter coolers. .....

To where? I could probably find a place for the oil cooler but intercooler is custom FM.

Edited May 24, 2016 by Driv3r

[burndog]

Here you go,

 

It looks like you to the simplest route to plumbing your intercooler. This is the major surgery it took the PO to make it all work...

[jimk]

2 hours ago, Driv3r said:

how is a puller fan pulling heated air from the front nose of the car? Isn't puller fan inside between the pulley and rad, pulling the cold air from outside?

How does one pull air out the front of the car?  A puller fan pulls air thru the radiator, putting a puller fan in front of the radiator and blowing the air out the front doesn't make sense. 

[jimk]

2 hours ago, Driv3r said:

To where? I could probably find a place for the oil cooler but intercooler is custom FM

Should of thought of that while planning the project.

[roadhog0]

Like others said, move the intercooler and oil cooler. This is one of the turbos I've seen done. It all doesn't have to be stacked in front of the radiator.

 

 

 

Edited May 24, 2016 by roadhog0

[burndog]

23 minutes ago, roadhog0 said:

Like others said, move the intercooler and oil cooler. This is one of the turbos I've seen done. It all doesn't have to be stacked in front of the radiator.

 

 

 

As a matter of fact, having the intercooler close to the radiator actually decreases its efficiency and increases its overall heatsink suckiness. Trust me, that's why I went to twin intercoolers. Realistically it should be below the radiator and exposed to as much ambient air as possible.

[Driv3r]

6 hours ago, jimk said:

How does one pull air out the front of the car?  A puller fan pulls air thru the radiator, putting a puller fan in front of the radiator and blowing the air out the front doesn't make sense. 

 

My apologies if I wasn't clear. The puller fan that I was talking about sits behind the radiator and in front of the water pump pulley, sucking the air through the radiator.

6 hours ago, jimk said:

Should of thought of that while planning the project.

I've purchased this as half finished project. The PO had the intercooler custom made and installed.

[Preyupy]

The stock 2002 Turbo radiator is about 5" wider than the stock 2002/ti/tii radiator.  It leaves enough room for the engine driven fan.  You could always try the 2 smaller fans mounted either side of the water pump shaft.  There is no reason they should not work just fine (30 amps is a lot and you will probably need to up your charging system to compensate).  You can always have a custom radiator built,  there are many companies that build them, you just need to figure out how much room you have, how you are going to mount it then carefully measure (3-4 times just to make sure) draw a diagram and send it off to one of them and see what they say.