Author Topic: M42 oil cooler??? (Read 12489 times)

rallycarcamshaft · « **on:** November 14, 2006, 06:49:54 PM »

Hello guys/girls, have any of you fitted an oil cooler to your 318is's if so how do you fit / who makes the take of plates to feed / return oil from cooler.

thanks

jon finch (england)

P.S. i rally a 318is without an oil cooler and it gets pritty hot after a good caining!!

johna · « **Reply #1 on:** November 14, 2006, 07:00:03 PM »

I see second hand oil coolers from e30 325i's for sale often on eBay. Wonder if these would be easy to fit seeing they are made from a similar car?

bmwman91 · « **Reply #2 on:** November 14, 2006, 07:24:29 PM »

The hard part would be deciding where to plumb it in. The M42 has an internal oil pump and the circulation system is prettymuch closed off. You would need to tap into the lower pan and hook up an independent pump to circulate oil form there. You would definitely not want to run the cooler from pressurized oil from the stock pump...you would lose all presure in the system. Even still, I do not think it is really needed on the M42 unless it is a straight-up racecar.

cecotto · « **Reply #3 on:** November 14, 2006, 07:46:53 PM »

I think that would be complicating it unnessasarily.

The oil leaves the engine when it enteres the oilfilter housing, and when filtered it enters the engine again. I think i's there the oil should be circulated through the cooler. Some custom machining would be required, and probberly also some form of thermostat, For controlling the flow. So it wont be overly cooled. I think for competition use a restrictor might do instead. I've seen VAC has a similar product for the 6-cyls.

Quote from: bmwman91;13763

The hard part would be deciding where to plumb it in. The M42 has an internal oil pump and the circulation system is prettymuch closed off. You would need to tap into the lower pan and hook up an independent pump to circulate oil form there. You would definitely not want to run the cooler from pressurized oil from the stock pump...you would lose all presure in the system. Even still, I do not think it is really needed on the M42 unless it is a straight-up racecar.

D. Clay · « **Reply #4 on:** November 14, 2006, 08:26:48 PM »

http://i45.photobucket.com/albums/f69/tom944/Bmw%20E30/26-04-2006/2.jpg
VAC Motorsports.
http://www.victoryproductdesign.com/engine_main.htm

e9nine · « **Reply #5 on:** November 14, 2006, 08:28:48 PM »

As posted above - the VPD product seems to be the only one I know of to date.

bmwman91 · « **Reply #6 on:** November 14, 2006, 08:30:19 PM »

Hmmm. I was under the impression that the pump put the oil through the filter, and from there the rest of the motor. Seems like giong from there would cause a pressure drop in the lubrication system in the motor.

D. Clay · « **Reply #7 on:** November 15, 2006, 12:51:56 AM »

On dry sump cars the cooler is usually placed between the scavenge stage of the oil pump and the remote resevoir. That way it doesn't interact with the engine oiling system which uses the pressure side of the pump to put oil from the tank into the motor. The tank is not pressurized.
On an M42 you would have to use a separate pump as noted above or use a filter cap that is in-line with the pressure from the pump. The literature for the cooler states that they use .5" lines to maintain pressure. Bash the cooler or a line and you immediately lose pressure to the motor.

Gizmo318i · « **Reply #8 on:** November 15, 2006, 04:37:56 AM »

Im running an E34 M5 oil cooler on my M42. I plumbed the lines the same as the VPD oil cooler.

rallycarcamshaft · « **Reply #9 on:** November 15, 2006, 06:22:21 PM »

Thank you for all the replies, the VAC Motorsports adaptor plate is exactly what I am looking for.

jon finch

Froos · « **Reply #10 on:** January 07, 2007, 03:06:43 PM »

Does this item come with a thermostatic switch or is it sending oil through the cooler all the time? If so your engine will stay to cold, unless its a trackday only item

Vladi · « **Reply #11 on:** January 07, 2007, 03:22:21 PM »

The oil cooler has a thermostat. It opens at 248 F, i think.

Froos · « **Reply #12 on:** January 07, 2007, 05:52:39 PM »

I have a 325i cooler at home, does that have a thermostat??

BrandC · « **Reply #13 on:** January 07, 2007, 05:59:29 PM »

Quote from: Gizmo318i;13808

Im running an E34 M5 oil cooler on my M42. I plumbed the lines the same as the VPD oil cooler.

Pics please.

romkasponka · « **Reply #14 on:** January 07, 2007, 07:22:54 PM »

Do I have to use external oil filter with that cooler? I can understand how oil can go through stock oil filter and radiator, I think this is fake.

Author Topic: M42 oil cooler??? (Read 12489 times)

rallycarcamshaft

rallycarcamshaft