tranny cooler questions -UPDATED, ...like...how, what, where??? Options

[naro914]

Hey all,
so it's become obvious to me that I need a transmission cooler set up. With 330 hp and using a 901 box, it's going to start destroying gears (already did this past weekend at Road Atlanta).

So, what is everyone using and how are they set up? What pump & cooler? are you using a resevior/tank? Where is the cooler mounted? and where are you getting the oil in and out of the trans?

As you can see, I'm a complete newbie about this, need to educate and do as quickly as possible...I'm running out of transmissions!

Pictures would be wonderful...

thanks!!

[J P Stein]

Just my opinion with some assumptions on my part but this is the way I would spend my money and why.

When you start blowing off the R & P of a 901 a cooler will help alleviate that but when you start blowing off teeth of gears you are just putting too much power thru the trans....a cooler may help but I doubt it. I believe the mainshaft bows away from the pinion shaft.

I'd do the 930. Sure, it's a 4 speed but has a usable 1st gear whereas the 901 1st is useless as tits on a boar. The straight H shift pattern makes 1st a snap.
All the gears are larger/stronger including the R & P. It will handle more power that the 915.....which is why it was made.

The R & P needs to be flipped
and the shifter needs to be redone.....all not cheep. I hear it doesn't shift as quickly as the 901 because it has the same rube goldberg syncro arrangement as the 901 but more rotating mass.....all trade offs but it will be there for the long haul.
WAG on cost 5-7K.

When you get into the power zone that you're running the trans selection is limited for less than 12-15K.

[Cracker]

The R & P needs to be flipped...

When you get into the power zone that you're running the trans selection is limited for less than 12-15K.

I don't think this is the best idea for Bob/Naro. I have a 930, flipped ring gear, cable shifter, yada, yada, yada. It's a super big $$$ committment - my swap was on a budget build and it still cost 11k (and this is getting great deals!).

But in order to really make use of 930 gearing, a car needs big power. Even 930 turbos swap the trans for G50's because they don't even have enough guts for the gears. You really need 400 at the wheels for it to be a great fit - Bob's car is not in the ballpark, power wise. I think he would be very dissapointed in such a swap with his driving aspirations.

The challenge is where the line is drawn and he's approaching it. I'd suggest a well prepped/built 901 with all-the-fixins which is the direction he's headed. All this being said, he knows what he's going to do and how to do it - he's a racer!