What should the engine temp be on these engines? I have the water which goes up to about 90C but the oil remains at a cool 45-50C.
I do have a lotus alloy sump installed on my 1600 x-flow,but is the water temp too high?

I aint an expert but from what i've read on other engines coolant temprature 90c is about right,

The thermostat on these engines opens at 88c, so 90 sounds fine!

HTH Fozzie

thanks guys