After market oil gauges - Rev 3 tubby - Best way to fit

[MR2Jay]

Hey Guys - been thinking about fitting my after market gauges and suddenly realised the I don't know the best way to fit the sensors on the Rev 3 tubby engine....

Boost I am fine with (I'll replace the one already fitted) it is the oil temp and oil pressure gauge sensors I'm not sure where to plumb in....

So, ideas please guys I would like to avoid using a sandwich plate if possible. I have a custom sump plug I can fit the temp one in but if there is a better method for both then I am all ears

[shinny]

Basically there are three 3/8" BSP threaded plugs in the rev3 turbo lower oil pan that are perfect post-filter locations for the sensors.

Two of these plugs and a little PTFE tape will sort it out for you: http://www.merlinmotorsport.co.uk/p3275 ... _info.html

I found the plugs initially were a PITA to shift, so expect to use a torque wrench and an extension or two on the male-hex socket to get them shifted. (Hope you've got a decent size socket set, as an allen key probably isn't going to work on this one)

[MR2Jay]

Now THAT is handy to know

With it being effectively in the sump area, is it still possible to take the oil pressure from there?

[topgun]

I have mine in the sump plug bud,for oil temp

[shinny]

Just knocked together this image to show you where:



The oil feed comes directly form the filter, so the temperature and pressure should be directly comparable to the sandwich plate readings

[shinny]

I have mine in the sump plug bud.

lol, you don't have oil pressure from the sump plug Mick!

Besides, the sump isn't a great location for the temperature reading:

I think what Mark means is reading from the sump is not necessarily what the engine is seeing.It has to go through the pick up, compressed by the pump. pushed through a hot engine block and so on. The real reading will be from the pressurised side

That said, the oil gallery is a better place to read pressure from. I only decided to put my pressure reading into the oil pan so I could compare oil pressure before and after installation of an oil cooler when previously the sensor had been on a sandwich plate. A T-piece with braided hose put into the stock pressure sensor location would arguably give a better warning if the engine started to lose oil pressure.

Not that the sandwich plate / oil pan is a bad place to read the pressure - it sure as anything beats the sump plug

[Gaz!]

Mick.....no you dont have it in the sump plug.

I have a sandwich plate, but now seeing Shins post I may move my sensors over and bin the plate. It pushes the oil filter down onto the undertray.

[MR2Jay]

Thanks guys

So, buy a couple of those plugs and I am ready to go Looks fairly accessible as well

So glad I went for a rev3 now So much easier in so many ways

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[chaos19810]

I'm at little new at the modding scene as can be seen from my questions but could someone explain why I should or shouldn't use a mishimoto themostat sandwich plate to put a oil cooler on to my car, I was going to t piece a pressure sensor and a temp sensors in?

Thanks jay for reminding me this?

[shinny]

They're pretty handy plugs, those... and aren't on the rev2 engine

They're ok to get to, although a universal joint and a long socket extension will be very handy to actually apply torque to them to get them undone, but you don't need to get under the car or anything...

[shinny]

I'm at little new at the modding scene as can be seen from my questions but could someone explain why I should or shouldn't use a mishimoto themostat sandwich plate to put a oil cooler on to my car, I was going to t piece a pressure sensor and a temp sensors in?

Thanks jay for reminding me this?

Thermostatic sandwich plate it great. You can't T a temperature sensor off tho - it needs to be in the oil flow to read accurately. But if you have a rev3, just use the plugs shown above and don't add any extra complexity with T-pieces in the oil cooler lines. Besides, the entire point of a thermostatic plate is it DOESN'T send all the oil to the cooler, making any readings taken from those lines absolutely useless!

[MR2Jay]

I'm at little new at the modding scene as can be seen from my questions but could someone explain why I should or shouldn't use a mishimoto themostat sandwich plate to put a oil cooler on to my car, I was going to t piece a pressure sensor and a temp sensors in?

Thanks jay for reminding me this?

The issue I have found with sandwich plates is that you are introducing an extra mechanical seal into the oil system and therefore another possible leaking point.

I have tried to fit one to a rev2 engine before and due to the location of the oil filter, it is almost impossible to seal this properly to the engine....

So, due to past experience I try to avoid them like the plague

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[topgun]

Nothing wrong with sandwich plates Jay ,I brought a quality one and has never leaked eventually I will have my digital dash installed which will have oil pressure and temp displayed

[MR2Jay]

Little update

Ordered 2 of those plugs Shinny suggested. Should be able to get up to my eyeballs in custom wiring at the weekend

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