Hey people, was just wondering what was the best way (most accurate) way of gauging oil pressure, Mechanical or Electric?

Also where do you tap the the Mechnical gauge in?

One more thing what is the the normal oil pressure in the Aseries? does it very from A12/A14/A15, will a high comp Aseries (race/mild) make high pressure?


Cheers

Buy an oil pressure guage from supa cheap,you get all the lines with it, it plumbs in on the drivers side at the front down low from memory.

Dont forget to use plumbing tape on the joints.

i prefer the electric ones, the tube for the mechanical ones carries hot high pressure oil, which you really don't want in the passenger compartment. If you use the mechanical one, get some copper tube, not that plastic stuff.

your oil pressure will be in the 25 - 50 pound range shouldn't be lower than 25, might be as high as 70 on cold mornings.

compression ratios won't change the oil pressure.

i prefer the mechanical ones, although hot oil pressure may leak in the cabin, if you hook them up right you may never have a problem (in 5yrs touch wood i have not).
Also there are problems fining the right adaptor for the electric guages on the a series some times, although some of the adaptors are the same for a ca18 motor and ford motors (eg oil filter adaptors etc for remote oil filters and oil coolers)

I second the mechanical gauge . I like to know exactly what my engine is doing . Just don't trust electric, but thats's me

I have an electrical and I like the ease of instalment and the lack of fear of oil in the compartment. I think in NZ that street cars are not allowed to have mechanical guages? Does anyone know? The only problem is finding an adaptor for the electrical. In my Toyota racecar I could screw in an imperial thread as it went straight into the block. The 1200s have that weak cast alloy oil filter attachment which I have cracked trying to install a NPT thread which aftermarket guages normally come with. A BSP thread is needed. In the end I found a Toyota Levin sender which screwed straight in so my advice if you go electrical is to find a Japanese engine's electrical sender unit.