Oil Pressure Gauge And Senders

[Strick.]

Gday

Yes im asking alot of question, but i like to research as much as i can before i do anything. Theres alot of knowledge out there so trying to tap into it.

Im looking to fit an aftermarket oil pressure guage. If i dont use the factory one, IE an independent circuit, i will end up with a warning light on the dash.

Whats the go, have two senders, hook two senders up together, tap into the factory sender wires, anything else???

Not sure what to do without having two senders which seems over doing it.

Thanks in advance everyone

[D.I.Y. Mik]

Well obviously you cant remove the sensor and have the warning light working correctly.

You could try earthing the wires to the old sensor and see if the light goes out. But its nice to have the backup warning.

Theres nothing wrong or overdoing it with two sensors. The aftermarket gauge wont work off the old sensor so you might as well have both working.

The only tricky bit is plumbing in the sender somewhere its going to work properly. Theres a couple of options i know of: a remote oil filter adaptor with sensor ports, or a t piece where the oem sender is.

Theres a few tutorials in the DIY section.

How about oil temp? Might be a good idea while your down there.

[Strick.]

Yeah fair call. I have a remote filter setup im installing now. That has two ports on it for sensors so was thinking aftermarket temp and pressure there. Ive taken the factory cooler off and have put the filter sandwich or whatever its called straight onto the block.

[Strick.]

If anyone is interested this is what i ended up going with, stud adaptor to fit the sandwich directly to the block

http://www.rawbrokerage.com/raw-brokerage-oil-filter-stud-direct-to-block-rb20-rb25-rb26/

Then will fit this into one of the lines

http://www.ebay.com.au/itm/Russell-AN-Flare-Unions-and-Cap-670360-/191146344698?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c8135c0fa&_uhb=1

So will be able to keep the factory sender as well as adding aftermarket ones located on the filter relocation plate.

Thanks for all your help everyone!

[Sm3g]

would be nice to see some pictures of the finished product!

[89CAL]

I used a fitting into the block to a braided hose and then used a t piece to attatch both sensors, easy and does the job:

[Strick.]

Yep, thats what im going 89Cal just using a different adaptor (got shipped today actully)

Will post up some pics when its done

[Sm3g]

nice one! Do the readings match?

[89CAL]

No reason they wouldn't be equal. Just the stock pressure gauge isnt very accurate so ignore it pretty much

[Sm3g]

Have you tested this, there are many different reasons they could be different.

[89CAL]

Why?

The 2 sensors are in the same line, and Pascals law (from memory) states that pressure within an enclosed space will remain equal and undiminished at all points (not quoting directly)

There is no reason for there to be a difference in oil pressure inside the hose and fittings where the sensors are

The factory gauge is innacurate because its very vague and quite slow to respond. My aftermarket gauge respons immediatly and has 2psi incriments on it. Much easier and more accurate

I don't see the point in testing them as I use the stock gauge to see that pressure is 'roughly' where it should be, and the aftermarket gauge to get an accurate measure of oil pressure

[Sm3g]

Thats what I was asking, do the two readings match each other (relative to the inaccuracy)?

[Ben C34]

Of course they would.

It's the law.

[89CAL]

Of course they would.

It's the law.

Bitches!

I think they are pretty close, I think I did check when I first fired it up and it was about where it should be, but like I said I dont pay much attention to what the pressure actually is on the stock gauge, its just there to make sure theres some pressure there while I'm driving along lol