JD 5085 Turbo pressure maximum?

[mars1952]

Hi:
How much boost pressure does a JD 5085 put out?
I am going to put some gauges on my JD 5085 and I need to know what the maximum boost the turbo puts out so that I can get a gauge that displays the correct range. I have a 30psi gauge that I would like to use.
Thanks, Marshall
P.S. I think that it is time to update my signature since the tractor in the picture has been stolen and I have a new tractor.

 

[Edward. S]

I am pretty sure it only does 8-9 boost but you can check Nebraska Tractor Test Labs on their site they test the tractors usually post the turbo psi.