Antonio

The tranny cooler line is too close for comfort to the right coilover and is leaking a bit. This is a LSD tranny on a dedicated track car running on Red Line synthetic gear oil that is replaced once a year. I'm thinking of removing the tranny cooler line all together and plugging the holes. I know the purist would want to preserve it but I'm not convinced that it does anything. Any opinions? TIA

Cory9584

Why delete it? cant it be bent a little for extra clearence? You can also mount a real trans oil cooler with custom lines and put it where it doesnt interfere.

Musche

I agree with Cory by using an aftermarket one. Besides, if you plug it, the pump and gears that drive it would probably become damaged possibly hurting your transmission. I know the drive gear is only available from the factory and is several hundred dollars to replace from what I have been told.

Antonio

It is as bent as it is ever going to be and I still see evidence of rubbing under hard cornering. By the way, the tranny mount is solid and all rear suspension bushings either solid or spherical.

The plan was to take the gears our so that it doesn't build up pressure.

Is there any evidence that it actually does anything meaningful? Lowering the temperature of the gear oil by a couple of degrees I'm not sure if it’s worth the hassle.

jyoon

seems like that tranny cooler would do alot especially on a track car.

The DareDevil

I have a parts-transmission if you need any pieces.

lart951

I sold a tranny with a cooler delete to well known racer with a ls1 v8 on the car, almost 2 years ago, he tracks the car regurlarly and so far no problems reported.

MPD47

The 968 transaxles did not come with a cooler, just a finned lower cover. John Hajny (RedlineMan) did a nice Setrab cooler to replace the stock loop if you search the racing/de forum.

Antonio

Hmm. Interesting idea that is probably much more effective than the stock cooler line. I would be concerned about flying debris underneath the car though. I'm still trying to understand how much difference the stock cooler line make in lowering gear oil temps. I can't image that it’s more that a few degrees.

gt37vgt

I'm putting my skiddy dif in at the moment and cant get the cooler drive gear mounted and thinking of loosing the cooler as well it does coll it down it is said cool day on the feeway cruse the box is to cold i was wondering if it has a sprybar inside on to the geat chain as i would not want to loose that any one ??? i figured i would just get a temp guage and it it went above 120 C I'd set up and electric pump and nice little flat panal cooler .

Spidey944

We used to run a diff cooler/pump set up on our Grand Am Cup car that was mounted in the trunk. Worked great, never shelled a diff, too bad we can't say the same for the tranny. Plus, those AN fittings and steel braided lines look so bad-***.

sawood12

Has anyone actually measured the oil temps in a non-cooled 951 tranny? as has already been mentioned the 968 and 944S2's didn't have tranny coolers and these things are tracked regularly with no issues with tranny temp that i've heard of. I'm not convinced they are entirely necessary and they add about 15kg/30lb's of weight.

anders44

the power of a tuned turbo car is much more than a na, power = heat, heat = bad.

considering it's normal to have tranny cooling on regular diffed cars, imagine all the heat in a transaxle!

I made a thread about temps and it got 0 response, but I will do tests of my own once the damn thing hits the tracks/road.

Olli Snellman

In some market areas S2 models did have a cooler. For example in Switzerland S2 was available with LSD & cooler.