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Cool Transmission
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maplesyrup
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PostPosted: Sat Apr 01, 2023 8:32 am    Post subject: Re: Cool Transmission Reply with quote

Awesome!
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halbug
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PostPosted: Sat Apr 01, 2023 1:21 am    Post subject: Re: Cool Transmission Reply with quote

Ian Godfrey wrote:
Wow, that is one of the most elaborate test beds I have ever seen. A big tick for ingenuity Shocked Laughing


Ian, thank you for your nice words, but there is nothing elaborate about this thing Laughing

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Anyhow it did it's job...
Cheers
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Ian Godfrey
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PostPosted: Sat Mar 25, 2023 2:22 pm    Post subject: Re: Cool Transmission Reply with quote

Wow, that is one of the most elaborate test beds I have ever seen. A big tick for ingenuity Shocked Laughing
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halbug
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PostPosted: Sat Mar 25, 2023 9:16 am    Post subject: Re: Cool Transmission Reply with quote

Time to fry some transmission oil Laughing
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Here are some pics from my bench. I tested the system today.

After several runs with adjustmens of the spring pressure and the jet size of the squirters, I found what I think is a good compromise of oil share between the direct oil return into the case and the squirters. All at about 7-8 psi to hopefully not overload the E-pump.


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This concludes the transmission build. I will have clean oil at all gears at all times. Even the Berg 5th will get enough. And when things get touch I can be sure to not overheat the transmission Cool

Cheers halbug
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halbug
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PostPosted: Sat Jan 28, 2023 7:11 am    Post subject: Re: Cool Transmission Reply with quote

The built of my chassis has finally progressed to a point where I could assemble all the transmission oiling stuff. I am sure the oil will be terribly confused finding its way back into the case Laughing

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Oil pick up and scavange filter with magnet

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Electrical oil pump switched on at 113F, into filter from there to thermostat

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Oil exceeding 180F will be routed to the oil cooler

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Pressure control and distribution to the gear pairs

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Excessive oil directly into case

Now I can bench the system. I need to find the sweetspot of spraying a good amount onto the gears and still flow some directly to the R&P. All at as low pressure as needed. Things I can play with is the nozzle size and spring pressure for oil pressure control. More to come.
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halbug
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PostPosted: Wed Oct 27, 2021 8:32 pm    Post subject: Re: Cool Transmission Reply with quote

Man I don't know what to say.... Embarassed

Thank you!
Halbug
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slayer61
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PostPosted: Tue Oct 26, 2021 7:29 am    Post subject: Re: Cool Transmission Reply with quote

Brother your attention to detail is off the chart. Very cool Cool

Your car is stunning!
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halbug
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PostPosted: Mon Oct 25, 2021 9:44 pm    Post subject: Re: Cool Transmission Reply with quote

Yep! I have him weld all my structural stuff. Unfortunately I can not weld like this...
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Max Welton
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PostPosted: Sat Oct 23, 2021 10:40 am    Post subject: Re: Cool Transmission Reply with quote

Nice welds!

Max
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halbug
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PostPosted: Sat Oct 23, 2021 8:23 am    Post subject: Re: Cool Transmission Reply with quote

modok wrote:
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Modok, I liked your concept better and picked mine just up from the welder.


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Thank you
halbug
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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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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
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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 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
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]


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


Altmost to plan Very Happy
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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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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

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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?


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

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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: 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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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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