3.2 Trans cooler questions....

[Rols 912]

Hi

Discovered my recent purchase included a transmission cooler (euro 3.2).

Do these really make a big difference? Also, why did they only fit them to the Euro models?

Just curious....

Cheer

R

[Bill Verburg]

Originally Posted by Rols 912

Hi

Discovered my recent purchase included a transmission cooler (euro 3.2).

Do these really make a big difference?

Yes

Originally Posted by Rols 912

... Also, why did they only fit them to the Euro models?

Just curious....

Cheer

R

Porsche has a history of downgrading the performance capabilities of it's products that are shipped to NA. I'm also sure that the importers here had/have a say it what is offered on this side of the pond.

[wolf]

the 231 hp of a 3.2 euro was about all a 915 could take, hence the cooler.

[KTL]

Lucky you that you got a factory cooler. If you use the car at track day events, it'll really provide a benefit for you. The heat of high rpm usage, and heat from a LSD if you have one, will be reduced by having a radiant cooler like that.

[jcunning]

Can you take some pictures of where the lines route and the cooler itself?

Is there a pump as well?

Very cool stuff.

[Bill Verburg]

Originally Posted by jcunning

Can you take some pictures of where the lines route and the cooler itself?

Is there a pump as well?

Very cool stuff.

The pump is internal, there were 2 versions
early mounted in the tail housing used from circa '73

[Bill Verburg]

and late mounted in the side, used for some but not all '84 - 86 RoW 3.2

[spuggy]

Hey Bill, great pics!!

You're showing the internal spray bars in those photos above - my understanding was that the 84-86 cars didn't necessarily come with the spray bars (additional option), even if they had the pump and cooler?

I certainly had to have my spray bars retro-fitted..

[Bill Verburg]

Originally Posted by spuggy

Hey Bill, great pics!!

You're showing the internal spray bars in those photos above - my understanding was that the 84-86 cars didn't necessarily come with the spray bars (additional option), even if they had the pump and cooler?

I certainly had to have my spray bars retro-fitted..

That's correct, the early version was far more expensive and was an option on RS, std on RSR. It was intended for race use where temp control was only 1 of the design criteria.

the '84 -86 versions were targeted for street use(ok Autobahn) temp control only.

[Jack Olsen]

Originally Posted by wolf

the 231 hp of a 3.2 euro was about all a 915 could take, hence the cooler.

Europe has (well, had) many highways with a tradition of sustained (and legal) high speeds. The USA does not. I suspect that this (as opposed to horsepower) was a bigger factor in the decision to include the cooler for some markets and not others.

In my opinion, a cooler is really essential if you want your transaxle to survive much track use -- but is less important for U.S. street driving.