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Old 06-17-2008, 04:06 AM   #1
Yargk
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Default transmission cooler options

I've heard of (at least a couple) people adding transmission coolers to 5 speeds that they track regularly (ok probably only racecars). Are these all custom fabbed? I assume you'd need lines, a pump, etc. Are there any kits out there? If not I wonder what parts they use to make their custom kit. This is for a 5 speed 2007 wrx wagon. Thanks.
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Old 06-18-2008, 05:00 PM   #2
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We're working on a system currently.

-Dylan
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Old 06-18-2008, 06:30 PM   #3
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I wouldn't mind a turnkey 6MT cooler too.
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Old 06-18-2008, 07:19 PM   #4
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I look forward to seeing DS1's design on the trans coolers. How similar will it be to an oil cooler setup? Will it be thermostated? And if running an oil cooler how would the trans cooler be mounted?

A few questions first though - what does a 5 speed trans typically heat up to with typical street use?

And with that being said - what are the on track temps when autocrossing the 5 speeds hard on a warm day?
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Old 06-18-2008, 07:22 PM   #5
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After 20 minutes on track, my 6MT will badly burn your hand if you touch it. I'd say somewhere in the 180-200+ degress F range. The rear diff gets blazing hot to.

I doubt autocross use even gets it warm.
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Old 06-19-2008, 08:49 AM   #6
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Interested in 5MT cooler info as well - will be waiting for you Dylan!
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Old 06-21-2008, 07:14 AM   #7
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I am very interested. Actually I'm waiting for you to finish your kit before I go back on track.
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Old 07-01-2008, 07:16 AM   #8
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Any update DS1?
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Old 07-01-2008, 01:18 PM   #9
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We have 6mt cooler set-ups available currently.

The 5mt stuff is about another month out as we are trying to make it as user friendly as possible.

-Dylan
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Old 07-24-2008, 06:26 PM   #10
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Any updates on the 5 speed cooler? I'm waiting on it before I go back to the track.
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Old 07-25-2008, 11:47 AM   #11
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Quote:
Originally Posted by DS1 Motorsports View Post
We have 6mt cooler set-ups available currently.

The 5mt stuff is about another month out as we are trying to make it as user friendly as possible.

-Dylan
I too will be watching for the release.
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Old 07-26-2008, 01:45 PM   #12
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The biggest issue we're having with the 5mt stuff is how to get the oil back in the box without drilling a hole in the case.

I've thought about using the dipstick tube but it creates a possibility for leakage/fire if something bad happens.

I have the cores/pumps/lines ready, just need to tackle this last issue.

-Dylan @ DS1
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Old 07-26-2008, 04:40 PM   #13
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Quote:
Originally Posted by DS1 Motorsports View Post
We have 6mt cooler set-ups available currently.

The 5mt stuff is about another month out as we are trying to make it as user friendly as possible.

-Dylan
Where do I get info on the 6spd coolers? I checked your website link and saw nothing.
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Old 07-26-2008, 06:23 PM   #14
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They are custom order per car. Feel frre to call me at the shop.

-Dylan @ DS1
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Old 07-27-2008, 07:41 AM   #15
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Quote:
Originally Posted by DS1 Motorsports View Post
The biggest issue we're having with the 5mt stuff is how to get the oil back in the box without drilling a hole in the case.

I've thought about using the dipstick tube but it creates a possibility for leakage/fire if something bad happens.

I have the cores/pumps/lines ready, just need to tackle this last issue.

-Dylan @ DS1
How hard is it to put a hole in the case and is it bad to do so for any reason? Are you avoiding the hole because it makes the system less plug and play (which I understand)?

I'm just wondering because the reason that I didn't have a custom system made is cost. It seems with your core/pump/lines (bracket etc.) all worked out that the cost should be less than someone custom fabbing all that for me (one job vs. you hopefully selling multiple setups). With that 95% done, if a hole actually happens to be the best solution and not hard for a shop to do, I'd just have my shop do that part. How does this sound?
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Old 07-28-2008, 09:39 AM   #16
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The oil return line is part of what I'm curious about as well. If I had gone ahead and fabbed a system up for myself, I would probably do an oil return through the steel plate over the center diff (I have a JDM tranny) rather than attempting to put a hole & fitting into the casting. I guess the difficulty in making a kit is determining if it's possible for a D.I.Y. install rather than having to take the tranny to a shop & have it disassembled in order to install the return fitting.

Also curious as to how & where you are locating the cooler itself.

-Keith-
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Old 07-28-2008, 10:11 AM   #17
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Where do you DS1 guys suggest mounting the cooler? Are you suppling braided lines for this? How about an estimated cost for the 6mt cooler?
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Old 07-28-2008, 01:27 PM   #18
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We are trying to make this as plug and play as possible (aka trying to avoid drilling a hole).

To put a hole in the case would require disassembly of the transmission.

CTKAG- putting the return there causes 2 issues, one is tunnel clearance, the second is trying to get the fluid forward from the tail shaft while accelerating.

MasterKwan- With a top mount the mounting is easy so we dit it very similar to the optional STi oil cooler. With a front mount it's a little more difficult aka why they are custom fit. We use all Aeroquip lines and fittings and Heat sleeve.

Average cost of a 6mt cooler installed is about $600.

-Dylan @ DS1
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Old 07-28-2008, 01:39 PM   #19
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Hey thanks. I notice my 6MT gets a little notchy towards the end of a track session so, I'm thinking I need a cooler.
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Old 07-28-2008, 01:40 PM   #20
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^^ yep
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Old 07-28-2008, 06:08 PM   #21
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Disassembly of the transmission... I see now why you'd want to find another option. Keep up the good work and keep us posted.
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Old 07-28-2008, 08:18 PM   #22
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I'd probably have to do some location fabrication in any event. I have a ProcessWest cooler on the left side and the Spec C power steering cooler on the right side. I'd consider mounting it in the fender well - there should be enough additional airflow through the foglight openings to take care of both my brake ducts and a cooler.

You're right, tunnel clearance would make installing/removing the tranny pretty tough without damaging any sort of fitting.

-Keith-
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Old 07-28-2008, 08:32 PM   #23
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Wonder if it would be possible to leave it under the car with some kind of duct to direct air to it. Mount it horizontal under the car and run air down it lengthwise. Like under the driver's seat.
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Old 07-30-2008, 11:36 AM   #24
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Quote:
Originally Posted by CTKAG View Post
I'd probably have to do some location fabrication in any event. I have a ProcessWest cooler on the left side and the Spec C power steering cooler on the right side. I'd consider mounting it in the fender well - there should be enough additional airflow through the foglight openings to take care of both my brake ducts and a cooler.

You're right, tunnel clearance would make installing/removing the tranny pretty tough without damaging any sort of fitting.

-Keith-
Would you mind posting some pictures of the Spec C power steering cooler? I am curious as to what that looks like.

Also - Dylan if you need a car to test a trans cooler or even an oil cooler on... I am always willing to submit my car for some testing.
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Old 07-30-2008, 01:03 PM   #25
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^^ I have a JDM steering cooler here in house.
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