I think the oil pressure relief valve on the late model 13B rew tt is set that high. I've seen pressures on start up that high, but they go down fast.
Marc
>
> From: "Russell Duffy" <13brv3@bellsouth.net>
> Date: 2005/05/27 Fri PM 09:15:29 EDT
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Re: Oil pressure
>
>    Anyone out there have an opinion if 125 psi is to high for the oil
> pressure ???
>
> Hi Ken,   I don't know for sure, but I'd bet the race boys run that much.
> We just don't need it at our rpms though.
>
>
>   I just installed a new engine and all my other ones ran at about 80
> to 90 psi and this one is 125, I don't know why as all the plumbing
> is the same.
>
> Did you re-use your old pressure regulator in the rear housing, or is it one
> you haven't used before?  The REW regulators are quite a bit higher pressure
> than the old 2nd gen, and they make some aftermarket versions that are even
> higher I think.  If all the plumbing is the same, I just can't see how the
> pressure would be that much higher unless your regulator is causing it.  
>
> Cheers,
>
> Rusty (.53 ips, but soon to fall)
>
>
>