Mikelly Posted December 10, 2001 Share Posted December 10, 2001 Guys, I need to source a diff cooler and pump for my project... Any input would be much appreciated... I'm running the 87LSD R200 without the finned cover. Mike Quote Link to comment Share on other sites More sharing options...
Tim240z Posted December 10, 2001 Share Posted December 10, 2001 Mike, These are the only ones that I am aware of: Port City Racing. A bit pricey though I have seen and used electric pumps before, but not sure where they are available from. Tim Quote Link to comment Share on other sites More sharing options...
Tim240z Posted December 10, 2001 Share Posted December 10, 2001 Also found this one which is electric. Also a little pricey though: web page Also Speedway Engineering has an electric setup, but no prices on their website. That should be enough to get you started. Tim Quote Link to comment Share on other sites More sharing options...
johnc Posted December 12, 2001 Share Posted December 12, 2001 Mike, Before you spend money on this, drill and tap the rear cover for a temp sending unit and install an oil temp guage. You might be surprised to find that you don't need a cooler. If your diff oil temps are over 240 degrees for more than a few minutes then you need a cooler. Otherwise, you're just adding weight and complexity. Quote Link to comment Share on other sites More sharing options...
383 240z Posted December 12, 2001 Share Posted December 12, 2001 I saw a good used one on www.thepartstrader.com it was under either rx-7 parts or datsun parts hope this helps Keith Quote Link to comment Share on other sites More sharing options...
Guest Thurem Posted December 13, 2001 Share Posted December 13, 2001 Looked at the link, that tim240z, had for the weldon pumps. Maybe a regular fuelpump will do? As far as small oilcoolers go, look in a motorcycle junkyard lots of bikes came stock with little oilcoolers. Thure Quote Link to comment Share on other sites More sharing options...
Mikelly Posted December 13, 2001 Author Share Posted December 13, 2001 John, What I'm hearing is that the Clutch type LSD without the rear finned cover causes the oil to heat up quicker above certain RPM ranges. With my project I plan to hit some sustained RPMs and I suspect this will become an issue. Mike Quote Link to comment Share on other sites More sharing options...
johnc Posted December 13, 2001 Share Posted December 13, 2001 I think you mean wheel speed instead of RPMs correct? A clutch pack LSD generates the most heat when its working as a differential. The tighter the turn and/or the greater the torque application the more heat it will generate. That's one reason clutch pack LSDs used in autocross competition need more frequent rebuilding than the same diff used for road racing. Here on the west coast I don't know any ITS racer that runs a diff cooler and they sometimes start races with ambient temps around 100F. Again, I'm suggesting you do some baseline measurements before adding weight, complexity, and another possible failure point to your car. If you do eventually run a cooler, the temp guage and related plumbing will be needed anyway. Plus you'll have a baseline to work from in determining cooler efficiency and location. Quote Link to comment Share on other sites More sharing options...
Mikelly Posted December 13, 2001 Author Share Posted December 13, 2001 You would be correct John... Wheel speed...Tough day at work and I need SEVERAL drinks... Correct again about plumbing the lines and gauge. Will do that first. What I should to is get a finned cover and the aluminum brace one of our members sells... Mike Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted December 14, 2001 Share Posted December 14, 2001 could try synthetic oil too-like redline.corvettes dont come with oil coolers cause they use mobil 1. Quote Link to comment Share on other sites More sharing options...
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