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Cool Transmission
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Lingwendil
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PostPosted: Sun Sep 27, 2020 9:27 am    Post subject: Re: Cool Transmission Reply with quote
Really interested in seeing how this goes, very neat so far.
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halbug
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PostPosted: Sun Feb 07, 2021 7:32 am    Post subject: Re: Cool Transmission Reply with quote
Some small updates...

the filter and thermostat question is answered Cool . I am still working on some sort of pre-filter on the scavange side of the pump. Also got some plumbing material ordered:
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Made some smaller brackets for the oil pump and filter bracket:
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I'm thinking of re-enforcing the stock tranny stock mount. The so called HD mounts I have held in my hands are all terrible quality for material, fit and welds. Rolling Eyes

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What do you guys think? Where will an original mount give with very strong engines? What area needs some beef-up? Anyone any actual experiences?

BTW cardboard will be welded steel Very Happy Very Happy Very Happy

Thanks and Cheers
Lars
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modok
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PostPosted: Sun Feb 07, 2021 12:32 pm    Post subject: Re: Cool Transmission Reply with quote
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halbug
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PostPosted: Sun Feb 07, 2021 2:01 pm    Post subject: Re: Cool Transmission Reply with quote
Nice Cool

Did you modify or build from scratch?
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mark tucker
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PostPosted: Sun Feb 07, 2021 2:44 pm    Post subject: Re: Cool Transmission Reply with quote
I used to have( still do somewhere) a 12 volt oil transfer gearotor oil pump for outboard yamaha engines to transfer the oil from the big tank to the engine mounted small tank.I was going to use it for either a prelube pump befor start up instead of a accusump or for a trans oil pump like you are doing. I almost did my vw trans for it but couldn't find it among all my "stuff", I thought about making a scoop to catch the throw off from the ring gear to send forward but didnt do that either.... after it was all done and installed I did a good amount of driving and 3 gear lube changes after a hour of playfull driving the trans was warm...just warm. it was a lot cooler than I thought. witch made me rethink some of the clearances I put in it as far as case growth end to end and the pinion thrust bearing I put in it, I probably put it in too tight due to the dam little heat the case was witch means the case wasent growing half as much as I thought it would. oh well it worked fine for 3 years till I sold the car and havent heard anything from the tickled shittless buyer.
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halbug
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PostPosted: Sun Feb 07, 2021 3:12 pm    Post subject: Re: Cool Transmission Reply with quote
Hi Mark, how much power did you send through the gears, for how long of a time? I have a relative brave 2,1 with a ,88 forth in my bug. If I am driving it at 110 mph for only a short time on a flat, the tranny gets so hot you can not touch it! That is still true after a short drive from the highway to home.

We had this discussion here and I like to protect my B5 with a filter and additional oiling. The cooling comes as a bonus if needed Cool

Cheers
Lars
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halbug
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PostPosted: Sat Mar 06, 2021 12:50 pm    Post subject: Re: Cool Transmission Reply with quote
Found some time today and build/modified a pre filter for the scavange side of the pump. I replaced the sinter filter with a mesh filter and added a very strong magnet.


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Image may have been reduced in size. Click image to view fullscreen.

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halbug
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PostPosted: Fri Jun 25, 2021 11:56 am    Post subject: Re: Cool Transmission Reply with quote
Cooler is in place

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raygreenwood
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PostPosted: Fri Jun 25, 2021 12:47 pm    Post subject: Re: Cool Transmission Reply with quote
Nice cooler! Who makes that one please!

Ray
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Bad bug
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PostPosted: Fri Jun 25, 2021 12:48 pm    Post subject: Re: Cool Transmission Reply with quote
halbug wrote:
Cooler is in place

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Halbug is that a whiteline sway bar you have on the backend if not can you tell me which it is, i need a set of sway bars front and back.
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halbug
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PostPosted: Fri Jun 25, 2021 12:56 pm    Post subject: Re: Cool Transmission Reply with quote
raygreenwood wrote:
Nice cooler! Who makes that one please!

Ray


Ray, this is a Setrab Slim-Line oil cooler. Probably too small to cool the engine, but should do for the tranny.

Cheers halbug
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halbug
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PostPosted: Fri Jun 25, 2021 12:58 pm    Post subject: Re: Cool Transmission Reply with quote
Bad bug wrote:
halbug wrote:
Cooler is in place

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Halbug is that a whiteline sway bar you have on the backend if not can you tell me which it is, i need a set of sway bars front and back.


This sway bar is part of the Mendeola rear axle kit. Not sure it will fit original trailing arms?
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Bad bug
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PostPosted: Sat Jun 26, 2021 6:38 am    Post subject: Re: Cool Transmission Reply with quote
Ok thanks for the information. Do you plan on putting a scoop around the cooler the scoop could double as protection.
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halbug
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PostPosted: Sat Jun 26, 2021 8:54 am    Post subject: Re: Cool Transmission Reply with quote
Bad bug wrote:
Ok thanks for the information. Do you plan on putting a scoop around the cooler the scoop could double as protection.


I did consider a scoop first, but decided against it. First pic shows that the cooler sits less than 1/2 inch below the pan and somewhat protected by the sway bar. Second pic shows the area is pretty open once the air gets past the lowest point of the pan. I'll test this set up first.

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Bad bug
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PostPosted: Sun Jun 27, 2021 11:26 am    Post subject: Re: Cool Transmission Reply with quote
ok.
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Tvättbjörn
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PostPosted: Sun Jun 27, 2021 11:16 pm    Post subject: Re: Cool Transmission Reply with quote
halbug wrote:
Bad bug wrote:
halbug wrote:
Cooler is in place

Image may have been reduced in size. Click image to view fullscreen.



Halbug is that a whiteline sway bar you have on the backend if not can you tell me which it is, i need a set of sway bars front and back.


This sway bar is part of the Mendeola rear axle kit. Not sure it will fit original trailing arms?


It looks like the Sway-away bar just mounted with different weld-on mounting brackets. I have one listed for sale. Does your sway bar has a number stamped on it? I can look at mine to check for the number.
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halbug
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PostPosted: Mon Jun 28, 2021 2:22 am    Post subject: Re: Cool Transmission Reply with quote
The weld on brackets became necessary to fit the bar to a thing chassis with a truss bar still maintaining the intended location. Sorry no number on the sway bar... But agree, looks very much like the SAW.
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halbug
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PostPosted: Thu Aug 05, 2021 12:38 pm    Post subject: Re: Cool Transmission Reply with quote
[quote="halbug"]Based on some Porsche racing transmissions I have seen, I like the idea to return the cooled oil through jets directly onto the gears - at least some of the oil...

To make sure I have constant pressure and therefore even supply to all those points, I designed a distributor block with build-in pressure regulator. Anything past 10-14psi (adjustable with washers) will return directly into the case, through the oil filler hole.

And yes, it is a fuel injection rail profile Cool
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quote]


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Altmost to plan Very Happy
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raygreenwood
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PostPosted: Thu Aug 05, 2021 1:46 pm    Post subject: Re: Cool Transmission Reply with quote
[quote="halbug"]
halbug wrote:
Based on some Porsche racing transmissions I have seen, I like the idea to return the cooled oil through jets directly onto the gears - at least some of the oil...

To make sure I have constant pressure and therefore even supply to all those points, I designed a distributor block with build-in pressure regulator. Anything past 10-14psi (adjustable with washers) will return directly into the case, through the oil filler hole.

And yes, it is a fuel injection rail profile Cool
Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.

quote]


Very nice!
Is that just a spring loaded ball check valve inside?

Ray


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Altmost to plan Very Happy
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halbug
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PostPosted: Thu Aug 05, 2021 11:54 pm    Post subject: Re: Cool Transmission Reply with quote
Thank you Ray, yes exactly, a spring loaded check valve to hold a constant oil pressure on the oil nozzles and protect the pump from too much back pressure.

Cheers Lars
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