 Transaxle oil cooler pumps |
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| 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 
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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: 7,986 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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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. |
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| 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 |
QUOTE(Racer Chris @ Jan 21 2012, 05:23 AM)  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) |
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| 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 |
QUOTE(Randal @ Jan 21 2012, 10:47 AM) [ 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) |
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| 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 |
QUOTE(J P Stein @ Jan 21 2012, 11:06 AM) QUOTE(Randal @ Jan 21 2012, 10:47 AM) [ 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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| ChrisFoley |
Jan 21 2012, 10:00 PM
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#6
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I am Tangerine Racing Group: Members Posts: 7,986 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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QUOTE(Randal @ Jan 21 2012, 10:19 PM) So is it the fluid losing capability or the metal expanding JP, or a combination of both? (IMG:style_emoticons/default/rolleyes.gif) Even if the gear oil isn't breaking down, it loses viscosity as the temperature climbs. Also, expansion of the case may affect alignment of components. So its probably a combination. I wouldn't want the temp to exceed 220F anyway. |
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Posts in this topic
pcar916 Transaxle oil cooler pumps Dec 29 2011, 07:27 AM
stugray I was a little interested in this as well.
When in... Dec 29 2011, 06:12 PM Brett W Gear pumps are light years better than the diaphra... Dec 29 2011, 08:02 PM Richard Casto I think this is an interesting topic as well. You... Dec 29 2011, 08:24 PM stewteral
How many of you are using gear pumps instead of d... Dec 30 2011, 12:22 AM pcar916 Gosh, I just typed in responses for the last 30 mi... Dec 30 2011, 05:51 AM
stewteral
Gosh, I just typed in responses for the last 30 m... Dec 30 2011, 10:37 PM pcar916 Now in order of the questions.
I considered posti... Dec 31 2011, 06:03 AM Richard Casto Continues to be a great thread! Keep posting ... Dec 31 2011, 09:30 PM Downunderman On my 2.7 I am using a sportomatic pump driven off... Dec 31 2011, 12:12 PM pcar916
... and pressure feed the input shaft bearing thr... Jan 2 2012, 02:38 PM john rogers When I added the pump and cooler setup to the race... Dec 31 2011, 07:22 PM pcar916 Looks nice. Is the Tilton constant duty?
I talke... Dec 31 2011, 08:27 PM john rogers Most of the sprayers I saw installed had one nozzl... Jan 2 2012, 08:18 PM pcar916
... never to spray the oil into the R/P mesh as i... Jan 3 2012, 07:10 AM Richard Casto
I always understood the mesh squirter was a bad i... Jan 3 2012, 07:45 AM pcar916
I would love to see what it looks like inside a t... Jan 3 2012, 09:55 AM Downunderman The oil feed for the input shaft bearing is throug... Jan 3 2012, 11:38 AM john rogers Well the R&P question pops up again as I suspe... Jan 3 2012, 06:35 PM Richard Casto
Well the R&P question pops up again as I susp... Jan 3 2012, 08:47 PM pcar916 Now there's some empirical data. John, what wa... Jan 3 2012, 10:04 PM john rogers Good question about the oiling of gear assemblies ... Jan 4 2012, 11:06 AM pcar916 Aftermarket (billet) side plates are available for... Jan 4 2012, 01:03 PM john rogers Well, for various HP ratings, Black Forest in San ... Jan 4 2012, 05:23 PM pcar916
... 220 to 300 HP use a cooler and rebuild at the... Jan 5 2012, 06:29 PM ottox914 The location of the pump will make a difference. G... Jan 5 2012, 07:37 PM pcar916
Gear drive pumps... need a gravity feed- they won... Jan 5 2012, 08:10 PM john rogers You are correct about the "gear" pump an... Jan 6 2012, 11:41 AM pcar916
... We would then filter the trans fluid...
How... Jan 6 2012, 12:49 PM john rogers In the pictures I posted there is a bright red fil... Jan 6 2012, 02:40 PM pcar916 I thought I'd follow up with a summary of the ... Jan 14 2012, 11:04 AM Randal
I thought I'd follow up with a summary of the... Jan 20 2012, 08:36 PM pcar916
What is the breakdown of the $308 and do you... Jan 20 2012, 10:19 PM stewteral
I thought I'd follow up with a summary of the... Jan 20 2012, 11:47 PM pcar916
I MUST. As I put in an earlier post temps on the... Jan 21 2012, 08:28 AM john rogers Did you give Patrick in Phoenix a call although th... Jan 14 2012, 10:30 PM pcar916 I didn't give Patrick a call because I already... Jan 15 2012, 10:34 AM john rogers Generally those pumps can handle the gear oil temp... Jan 15 2012, 08:04 PM pcar916
... or you park on a very steep downhill grade al... Jan 18 2012, 11:29 AM john rogers The temp setup Patrick sells uses the speedo hole.... Jan 18 2012, 12:29 PM stewteral
I'm planning on installing a trans cooler in ... Jan 21 2012, 12:29 PM J P Stein I'm with Chris on this.
Porsche's syncro ... Jan 22 2012, 11:04 AM john rogers For the temps question, I found with my trans temp... Jan 26 2012, 12:04 AM pcar916 The simplest plumb... in, out, and a vent to the c... Jan 30 2012, 05:45 PM pcar916 Finally time for an update. I forced myself off of... Jul 10 2012, 11:19 AM pcar916 The engine compartment plumbed and the temperature... Jul 10 2012, 11:23 AM 396 Thanks for sharing. Great looking set up Jul 24 2012, 07:47 PM brant Chris,
my race trans builder switched me over t... Jul 24 2012, 10:18 PM pcar916 Thanks, I've done all I can to make sure it st... Jul 25 2012, 09:21 AM naro914 I am planning to do something similar. Been taking... Aug 15 2012, 08:01 AM pcar916 This geared pump has no trouble at all pumping eve... Aug 16 2012, 09:54 AM naro914 Guys,
For those using the Tilton pump, how noisy i... Aug 30 2012, 02:01 PM pcar916 Ok, since I haven't seen an answer to this noi... Sep 18 2012, 09:44 AM moggy
Ok, since I haven't seen an answer to this no... Sep 18 2012, 05:01 PM pcar916
I was wondering if the RB Racing pump has the sam... Sep 18 2012, 05:21 PM naro914 I hadn't heard that the Tilton had a 2 hour du... Sep 18 2012, 05:51 PM pcar916
I hadn't heard that the Tilton had a 2 hour d... Sep 18 2012, 09:12 PM pcar916 Double post deleted... Sep 19 2012, 03:06 PM brant I finished my complete install and will be testing... Sep 18 2012, 08:56 PM brant I added pictures of my finished cooler install int... Sep 19 2012, 06:55 PM moggy
I added pictures of my finished cooler install in... Sep 20 2012, 04:55 AM moggy
I added pictures of my finished cooler install in... Sep 27 2012, 01:37 PM brant things went really well
I did not play with differ... Sep 27 2012, 10:52 PM moggy
things went really well
I did not play with diffe... Sep 28 2012, 01:38 PM pcar916 Nice build Brant. Specs on that pump from your pix... Sep 20 2012, 07:28 AM moggy Hey, Ron. What was the part number of the pump you... Sep 20 2012, 02:45 PM pcar916
Hey, Ron. What was the part number of the pump yo... Sep 20 2012, 03:53 PM mrbubblehead Hi, great thread. I am gathering the pieces now fo... Jan 10 2013, 08:52 PM moggy
Hi, great thread. I am gathering the pieces now f... Jan 11 2013, 03:33 PM mrbubblehead Thank you for the photos. What I am really after a... Jan 11 2013, 08:10 PM moggy
Thank you for the photos. What I am really after ... Jan 12 2013, 10:10 AM brant I agree with Moogy.
limited slip differentials cre... Jan 12 2013, 12:16 PM |
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