I realize the non-cooled transmissions don't have the pump, so obviously an external electric pump is required, but i don't see the downside to cooling a transmission this way either..?

 

Sorry, I wasn't try to insult, but now that we are all on the same page.
I don't see any issues with using the drain and fill plugs. As long as you are cooling fluid there should not be any issue with that approch.

 

Using the dain and fill plugs will cool the oil hitting the R&P but won't do much for the gear stack, which is why the factory cooler pumps oil back in to the end of the transmission... which is where the cool oil is really needed.


TonyG

 

Nice oil cooler kit,and better flexibility than the oil loop
Any plans to market it and any ideas about the price?

 

Since english is not my native lanquage, i am not sure did i understood you correctly.
I put Tony's set up there, because i think it is just a perfect way to cool originally non-cooled transmission. That would be my route to go as well if i had a non-cooled trans.

I edited my previous post to more understandable form. Sometimes it just difficult to write understandable english, i do it better in finnish

I am not allowed to advertise here

 

Real nice setup olli, I am sending you a PM. Using the drain/fill plugs will directly cool the LSD and R&P in the diff and the LSD does generate a fair amount of heat. I also seems to me that if the oil is cooler, the entire tranny will be cooler. I really don't want to drill and tap holes in the trany unless it is being rebuilt.

 

BTW, the reason I use non-cool, non-lsd turbo transmissions because they are cheap ($250-$500 used).

If I blow up the tranny, I can easily swap in my Guard GT LSD and swap the rear cover (which I have tapped in the factory location with -6 AN fitting) and be back in business for real cheap.


As far as just cooling the oil in the R&P area (using the fill and drain plugs).... It's better than nothing, but isn't good enough for track use with a LSD car.

TonyG

 

Hello:

I am interested on the adapters for the oil cooler. Can you tell me where can I find them.

Thanks in advance and regards

Alejandro Redondo

 

I still love this idea that user Redlineman used.

 

Me too!!!

 

You are correct, sir.

Marc

 

Is it that easy to swap the LSD unit from trans to trans? I thought you needed some special tools etc. If its not that big of a deal I might just go that route and swap a LSD in myself

 

any of you guys measure temps on your transmission??

my experience that the porsche design is NOT for track use.

on my 165HP trackcar the stock transmission went up to 175 celcius and more, if i continued driving.
thats 347 fahrenheit or maybe even more if you continue racing without taking a cooling down break.

at that temperature your transmission will blow, eventually. (and thats what they do regularly, dont they? )


i got a cooler with a cooling fan, and an electric pump from Mocal.
but even now, if i drive too long the temperature will be too high.
so this season i'm planning to get a bigger radiator (at least 300x150 mm).

a picture of my current setup: (the air-scoop is now replaced by a electric fan, since the scoop wasn't resistand to driving next to the track. )

 

No special tools, you need to put in shims to set the backlash. You will need a dial indicator to measure the play. If you pull the LSD with the bearings, it should go in without changing the shims. If you already had several sets of shims, you install a certain size stated in the factory manual, measure the amount of movement, then do a little math to determine the correct shim to use. You are replacing shims 11 in the picture.

Once you get past the diff and into the gears, you need a press.

 

it looks nice and appears well thought out but i think placing it next to the muffler defeats the purpose somewhat...