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Old Jul 9th, 2002, 05:30 PM
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Oil pressure sending unit and gauge questions

Anyone know where the oil pressure sending unit/switch is?

I'm researching oil pressure gauges.

I'm resigned to removing and drilling and tapping the intercooler piping if I want a boost gauge but from what I can tell that would be for entertainment purposes only.
Seems like oil pressure and oil temp would be more useful.

Speaking of oil temp, does the Cooper S have an oil thermostat for the oil cooler or does it flow all the time?


Last edited by jmardy; Aug 20th, 2002 at 07:40 PM.
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Old Jul 10th, 2002, 03:20 AM
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Talking Try the Blue Thunder Approach


There have been several threads related to this topic. The best solution that has appeared is Blue Thunder's at:

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Old Jul 10th, 2002, 08:56 AM
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Click here to see Mini Gauge kit

The Factory pressure sending unit is screwed into the oil filter housing assembly. The actual spot is under the headers, in a small spot between the header heatsheild and some sub frame piece. Removing it requires a deep socket, (Forgot the size??) Rather than have everyone fight the removal of the O.E. switch, We removes the oil filter cap, Tapped it and installed the sending unit there. It is much simpler, requires no crawling under the mini. All of our kits use electric gauges, not mechanical. Mechanical is O.K. but I'm not a big fan of having 100 P.S.I. of oil pressure in the passenger compartment.
Most all of the name brand gauge manufacturers built some pretty accurate units now days. Even if they are a few degrees off. It's not the exact temp that is important, but that you know the difference between what was normal and what is now a low pressure situation, or over heated temp.
We should have ready to ship product in a few weeks.

My mini is bigger than yours ...
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Old Jul 10th, 2002, 01:33 PM
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Thanks for the info Dr. Bob and Blue Thunder.
I like your idea. I'll keep an eye out for your stuff.

I'm a big fan of Omori gauges by the way.
They offer orange backlighting as well. Check them out if you haven't seen them.
Omori Gauges

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Old Dec 20th, 2002, 10:50 PM
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Do we drill the aluminum Oil Filter Cap?

Hi blue

I just purchased the BMP Deluxe Boost and Oil pres pod
Just want to know if were we drill a hole ? if its on the aluminim oil filter cap does the BMP provide the correct fitting? next I read somewhere but cant find it that he purchased an Oil Filter cap that has a hole for the sensor....whats the part number and where do i get it?

If I cant get that part is it safe to drill a hole there since its subjected to so much pressure wont it leak??


Cooper S Chili Red hood stripes 17 inch BBS, Other car Subaru WRX 02
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Old Dec 20th, 2002, 11:33 PM
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bmp gives you everything you need to tap the oil filter cap.it is pretty much straight foward.
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Old Dec 20th, 2002, 11:47 PM
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Originally posted by jmardy
I'm a big fan of Omori gauges by the way.
They offer orange backlighting as well. Check them out if you haven't seen them.

Omori seems to have a US branch that is hinting about Mini products Here.

Tom Clark -- Chili Red 2002 MCS in Clarksville, MD
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Old Dec 22nd, 2002, 03:59 PM
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Don't think you can replace the gauges (Speedo or Tacho) as the Speedo is a major Gateway between system Buses in the car.

However changing the dial face may be a better way of going. I have seen a thread on hear about this.
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