C. Ludwig

iTrader: (27)

Seems like a year ago I promised someone I'd send some pics of my dual, stock oil coolers on my ITS car. I finally took the pics a month or so ago and just now hosted them. Here they are. The first two are of the "T" fittings used to route the oil. The last one is of the mount. All it is is a piece of 1/8" aluminum with four holes. Two are used to tie each one into the backside of the original mount and the other two are used to bolt the second cooler to in front of the other cooler which sits in the original stock mount. It ain't much but it might help? BTW, with the proper ducting this setup has cured some serious overheating issues.


http://home.insightbb.com/~cludwig2/...6/site1013.jpg

http://home.insightbb.com/~cludwig2/...6/site1014.jpg

http://home.insightbb.com/~cludwig2/...6/site1015.JPG



Chris

Rotory

iTrader: (1)

help any?

C. Ludwig

iTrader: (27)

A ton. The second cooler and some ducting work brought the water temps down from the 250-260 range to 210-220 and the oil from 250 down to 180-200.

Chris

Infini IV

I was thinking about doing this for some time now! Except mounting it somewhat differently. Looks like yours are mounted one in front of the other?

Fatty_FC3S

Why did you mount them in front of each other instead of on top of each other?

Did you run the oil lines in parallel to the coolers (out of motor, into both coolers, out of both coolers, into motor).................or did you run them in series (out of motor in the first, out the first, in the second, out the second, into motor)?

Looks good though, thanks for the pics.

rotary>piston

i don't think parallel would work.

banzaitoyota

What is your oil pressure now?

banzaitoyota

What is your oil pressure now?

C. Ludwig

iTrader: (27)

Ok. I first mounted them one on top of the other and that was a big mistake. Pretty much shut the air off to the rad. Bad idea. Moved the second cooler in front of the stock cooler because it was easy basically. The cooler in the stock location isn't getting as much air but the setup is very effective on track. When I first laid it out like this I had thought of some ducting across the top and sides of the two coolers to keep the air from spilling out and helping to flow more air across the back cooler but that has proved to not be neccesary.

The coolers are plumbed in parallel. You can see the two "T" fittings mounted on the rear cooler. There is a higher pressure drop when running the coolers in series.

Pressure before the second cooler was 120 psi @ WOT with the Comp regulator. It's dropped to about 105 psi with the second cooler.

All in all, cheap, easy, effective.

Chris

NZConvertible

Parallel plumbing is in fact the correct way to do it. Series plumbing doubles the pressure drop compared to a single cooler, and doesn't evenly split the heat load. Parallel plumbing halves the pressure drop compared to a single cooler and evenly splits the heat load between the two coolers.

astrochild7

iTrader: (3)

i would think by slowwing the oil thru coolers would increase heat transfer also...

C. Ludwig

iTrader: (27)

Most of the IT racers that run dual stock coolers use parallel. I have heard of a coupe using series succesfully. Don't have good numbers on pressure drop or temps though. Common theory seems to be that series creates a larger pressure drop though.

Chris

Wankel7

Are you running thermostats in the coolers? If not did you remove them or did you make something up?

James

C. Ludwig

iTrader: (27)

No thermos. Just pull them out and install a bolt and locknut of the same size as the hole in the cooler.

Chris

NZConvertible

Why wouldn't you run the thermostat's? Overcooled oil is no more use than overheated oil.