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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Has anyone used VAC Differential Cooler?



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      02-09-2013, 10:13 AM   #1
vasillalov
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Has anyone used VAC Differential Cooler?

Hi everyone,

I am planning on getting a clutch type LSD some time this spring and I am thinking about how to properly cool the diff. Even though the finned diff covers are easier and simpler, I do not think they are sufficient to properly cool a clutch type differential.

I am interested in this differential cooling kit by VAC:



Comes with pump, cooler, lines, fittings and a thermoswitch which will automatically turn on/off the cooling pump.

Has anyone played with this or other diff cooling kits on the E90?
How loud are those pumps?
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      02-09-2013, 11:29 AM   #2
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Those pumps are loud. We used them on our race cars for reared cooling but have switched instead to internal pumps. I think this kit is way overkill for a street driven car; a finned cover should be more than sufficient. If you were going to the track a lot; it might be a viable option. Just my 2c
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      02-09-2013, 12:01 PM   #3
vasillalov
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Thanks for the input. Yes, I have been going to track for the past 2 years and I plan on increasing the frequency of my track days as I am slowly turning my 335i into a dedicated track car. I think I'll probably implement a manual cut-off switch for daily driving and I'll enable the pump only when going to track events.
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