Transaxle oil cooler pumps |
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Transaxle oil cooler pumps |
pcar916 |
Dec 29 2011, 07:27 AM
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#1
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None |
How many of you are using gear pumps instead of diaphragm types and what filter element (micron) sizes are you using?
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ChrisFoley |
Jan 21 2012, 07:23 AM
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#2
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I am Tangerine Racing Group: Members Posts: 7,964 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
I'm planning on installing a trans cooler in my 1.8L race car if I ever resume racing at the National level.
I have no empirical data on which to base my decision - only experience. What I do know is that shifting becomes more difficult the longer I'm on track. To me, the most logical cause is transmission temperature. |
Randal |
Jan 21 2012, 12:47 PM
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#3
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
I'm planning on installing a trans cooler in my 1.8L race car if I ever resume racing at the National level. I have no empirical data on which to base my decision - only experience. What I do know is that shifting becomes more difficult the longer I'm on track. To me, the most logical cause is transmission temperature. OK so what makes it shift harder is the higher oil temperature which cause metal to expand. Wonder if there is a rule of thumb for how much machined metal (like gears/shafts) expands for each XX degrees of temperature increase? It would be hard to believe that the transmission fluid is breaking down, providing less lubricantion, resulting in harder shifting. (IMG:style_emoticons/default/huh.gif) |
J P Stein |
Jan 21 2012, 01:06 PM
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#4
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
[ It would be hard to believe that the transmission fluid is breaking down, providing less lubricantion, resulting in harder shifting. (IMG:style_emoticons/default/huh.gif) Why is that ( oil breakdown) hard to believe? Run your motor 50 deg over temp see what happens. At the only track day I ever ran (5 30 minute sessions-2 drivers), I could not believe how hot my trans got. I made the mistake of touching it......yowza!....that's enuff of that shit. (IMG:style_emoticons/default/blink.gif) |
Randal |
Jan 21 2012, 09:19 PM
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#5
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
[ It would be hard to believe that the transmission fluid is breaking down, providing less lubricantion, resulting in harder shifting. (IMG:style_emoticons/default/huh.gif) Why is that ( oil breakdown) hard to believe? Run your motor 50 deg over temp see what happens. At the only track day I ever ran (5 30 minute sessions-2 drivers), I could not believe how hot my trans got. I made the mistake of touching it......yowza!....that's enuff of that shit. (IMG:style_emoticons/default/blink.gif) I guess because companies like SWEPCO have been around for some time, their products seem to work well and one would think they work well and have been tested at the highest temperature that could show up within a transmission. But then I don't have a clue on this one. So is it the fluid losing capability or the metal expanding JP, or a combination of both? (IMG:style_emoticons/default/rolleyes.gif) |
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