RT930turbo

Hello all,

I have been trying to finish up my 81 SC track car, and I'm into the final stages. I need some advice on plumbing the front mount oil cooler. I have been trying to figure out the best way to get sufficient airflow through the cooler, and there is not enough room to fit the cooler behind the bumper and still have somewhere for the hot air to go. I tried to search on this topic, but I have had no luck. I have run accross a few cars that have cut out a duct into the front trunk, and ducted the hot air under the car. I feel very comfortable fabricating a set up simmilar to this (911 Front cooler install) Are there any structural concerns with a set up like this? I have also seen the ducting through the hood, but that is a bit out of my league. If anyone has any thoughts, I would love some input before I cut apart my car rendering it a pile of junk Pictures would be a major plus! Also what is the safest way to route the lines, I will be using all aeroquip lines / fittings, and would prefer to keep them out of the wheel well. Just thought I'd see what others have done...

TIA for the help!
Artie

Bill Gregory

Artie,

On my 81SC, I used a RUF front valance/oil cooler combination, and there was enough room for air to exit behind the cooler. While I could have done something else to be more accomodating to the airflow, the oil cooler helped to keep the temps well within range, which is the ultimate test. I routed the hoses from the stock hard lines around the front to the cooler.

Bill Verburg

Like Bill I used a Ruf bumper cap which moves the spoiler far enough forward to allow decent flow out the back, at least w/ a 2.25" thick B&B

You can also make or purchase an RSR piece that opens up the front of the spare tire well.

RT930turbo

Thanks for the input Bill and Bill! With my current setup i have less than 1/4" between the trunk and the cooler, and I am very worried this will be inneffective. I Love the RUF front bumper, but the bumper I have is brand new, and the car has fresh paint, etc. I wish I would have discovered this problem sooner

Thanks again,
Artie

Edward

Artie,

Try the Pelican board and do a search. There are lots of folks there who have done a front cooler and have posted pics as to how to route exit air.

Edward

red911 Targa

Hi Artie,

I just finished installing the Carerra front oil cooler, fan and finned lines from Elephant Racing's kit back to the thermostat. The installation was great and I have an original Porsche cooler in my 1966 coupe. I really love those Elephant Racing finned oil lines. I'll bet it keeps the oil cooler just over Aeroquip or original Porsche brass lines. Good luck with your cooler set up.

Tom

RT930turbo

Thanks everyone,

I decided to go ahead and cut out the trunk, ducting the air under the car. This should give me plenty of flow, and enough clearance to fit my monster cooler up there.

Edward- The pelican threads were a huge help, thanks for suggesting them!

I'll let you all know how it turns out....

Artie

Brian_77_3.6

Cutting out the trunk is the best way to establish adequate space for air flow. However I also suggest making shure you have sheet metal ducting on the sides of the cooler extending back into the duct in the the trunk. I had a problem at hight speeds on the track that the air flow coming in to the sides of the cooler made it less effective. The problem never surfaced in street and highway driving, oil was around 200 degrees . But on the track it still climbed to about 240+. Putting ducting on the sides of the cooler got me back down to 210 on the track.