Was wondering what kind of oil pressure everyone with a evo was getting...I know that the flow is more important...Myself hitting the interstate about 70 to 80 mph,psi may be 8 to 12 lbs.of psi @ 100 degrees...I'm sure its just the heat doing this...

 

at idle mines at 9 psi and anything over idle it shots up to 20 at highway speeds its at like 25 but it has s&s oil pump

 

Thanks,thinking its about to change the oil ,I'm sure it will help..Bout the same at idle as yours,but 70 to 75 it runs between 9 to 15 with stock oil pump..By the way all that helped with the burning up stator problem that I had it was the rotor...Got 500 miles on it no problem so far...Always something...

 

7-10 lbs. per 1,000 RPM"s is normal oil pressure for most EVO"s.

 

May be the El Cheapo oil pressure gauge I have on Bertha, but it always reads around 15-20 at idle, and about 25-30 at higher RPMS. From what I've read, I guess that's OK.

Glad to hear you fixed your problem with burning up stators. What was the problem with the rotor?

 

It was the wrong rotor,Some said I could run a 45 amp rotor with a 38 amp stator,this coming from a bike shop...Didnt work for me,maybe some have been able to do it..

 

on getting that fixed. I was thinking that mismatched rotor would be a problem but someone else had already mentioned it. All I have on my '91 FLHS is oil "idiot" light that goes off after start up. Have 65k miles; new top end at about 48k and never had oil pressure issues. Oil tank cap does pop out and hang there occasionally only on start up so I have to remember to reach down and check it each time. After I'm up and running it never pops out.