Oil Cooler Sizes For Gti-6 Engine

[jimmer 0]

I'm currently using a Mocal 19 row 235mm size cooler in my 200+ bhp rally car. At the weekend the tempareture went up to 125 degrees c. I'm pretty sure nearer 100 degrees is more ideal. Does the type of oil you use alter the tempareture? What size coolers are other 6 engined cars using for track/rally? Do i really need a 25 row size instead? Any answers to the above questions welcomed.

Thanks

[HERMAN 33]

Were is your cooler mounted becasue a 19row should be ample.

[jimmer 0]

Were is your cooler mounted becasue a 19row should be ample.

In front of the rad in the usual 1.9 position. The grill/bumper is also cut about to aid better air flow

[Matt Holley 11]

Im sure mine is the same size as yours and never gets above 110 degrees on track.

 

Heres how mine is located.

 

 

Edited July 2, 2010 by matt holley

[Cameron 16]

It's never really going to be that efficient mounted in front of anything as the flow will be restricted. It's not all about flow into the cooler, the flow OUT of them is equally important, you have it mounted in front of something and it will hardly be flowing at all. Radiators are designed to slow the flow of air through them so that'll be where your problem lies. You should maybe relocate it to an area where it has a clear path on both sides, fitting an even larger cooler will just mean more of your radiator is blocked off and you may start suffering cooling issues.

 

I mounted mine here on a custom subframe.

 

 

You can see it enjoys pretty much unrestricted flow, and it works very nicely.

 

[jimmer 0]

Thanks for the info and Pics Cameron. Because i'm using a 205 TD rad which spans all the room in the cowling there isn't any availiable room at the sides. I Guess a long but short version or even 2 small ones side by side would be ideal mounted under the rad. Can't see any reason why using 2 small ones in series wouldn't be ok? unless a motor manufacturer uses a long short one, there's probably one on one of my dads John Deere's!

[jimmer 0]

Cameron and Matt how are your rad fans mounted? If i could do away with the cowling and lower my rad it might free up some more room for the oil cooler and also upgrade the fan to a pull type mounted behind the rad.

[Cameron 16]

That looks cool!

 

It's a Pacet slimline fan and mounts to the rad with some funky zip ties that came with it, I got mine from Demon Tweeks.

[Daxed 7]

Guys,

 

Don't know if anyone else has had trouble with the cable tie method of mounting an aftermarket fan, but my experience caused trouble.

 

I originally fitted the fan directly to the radiator on my kit cobra. After a few hundred miles the vibration of the fan unit when on rubbed it's way through the matrix of the radiator and caused it to leak.

 

Make a frame to mount the fan onto properly.

[Cameron 16]

Did you use the proper fitting kit or just normal cable ties? My Pacet came with some round zip ties that were specially designed for the job, they have rubber pads to ensure there isn't any abrasion of the core.

[Daxed 7]

It was over 10 years ago now, so memory a tad hazy, as far as I remember used the fitting kit that came with the unit.