Ideas for OP monitoring

[BertBert]

I've got concerns about my pinto oil pressure at race temps. The gauge is pretty well damped so doesn't show any transients. There is an OP warning light that is driven from an adjustable pressure switch. This is at an unknown pressure, but at a guess is 30ish psi - quite high. Hard to know (but changeable obviously).

From the race vid, we have now seen the OP light flickering at race speeds, but have no idea what that means.

Anyone got any ideas for cheapy, bodgy, accurate OP data logging or even a better way of monitoring the OP?

Cheers
Bert

[BertBert]

Thanks for the thoughts. There is a gauge, but it's very damped so pointing a camera at it is not much use.

There are no electronics as they are not allowed in historics. But some could go on for testing. The suggested logger looks interesting.

I have a vbox light that i am selling that i could press into service, but i want to sell it really.
I'll have a look at what you suggest.

Thanks
Bert

[BertBert]

There's no real problem with having stuff installed for OP logging. I could install my Vbox and do the job properly, just thought there might be a handy standalone logger to use.
Thanks for the suggestions, I'll have a look.
Graham

[BertBert]

I wonder if this might work...
http://www.maplin.co.uk/p/maplin-usb-dc-voltage-da...

I've got an Aim OP sensor which (IIRC) produces 0-5v.

Bert

[BertBert]

The Aim ones don't need a fixed supply. I assume they have voltage regulation inside them.

However, we have decided to change the shells and have done with it as we are pretty sure it's on its way out.

Bert

stevieturbo said:

But as most good oil pressure sensors require a fixed 5v supply

[BertBert]

That's what we have got, but the gauge has too much damping to see what is going on. The OP warning light with a switch in the same place is flickering on in strange places...

On the overrun when lifting off to brake (still with high revs)
On gear changes
On WOT at certain points in the rev range

radical78 said:

get an old style oil pressure guage not an electric one and run a pipe from the port near the oil filter