SilverXJ wrote:What was your initial oil pressure on the highway and oil pressure after hot?
Even with my lose cam bearing clearance oil pressure was good until it was driven for a while.
My oil pressure at start up is between 50-60psi, once hot and on the hwy I'm running around 45-50psi depending on the speed. We drove the MJ 4+ hours from Charlotte to the beach today at hwy speeds with the A/C on the whole way. My oil pressure stayed between 45-50psi the whole time running 60-70 mph. Hot idle drops the pressure down to 20-25psi. The stroker now has right at 600 miles on it. Hope this helps.
BTW - The stroker continues to impress me. It did great today on the road trip considering it was pulling a loaded down MJ on 35s.
lafrad wrote:yikes yea, you are probably heating the oil up quite a bit!
Good part of that is, hot oil runs back into the pan faster. make sure you are using good stuff that can handle the higher temps and its golden.
Actually with the 4.88s and 35s I'm not much different than a stock 4.0L with stock tires at hwy speeds. The 4.0Ls were designed to run 25-3000 rpms at hwy speeds. They like to be spun fast...
I'm running Comp Cams break in oil and a PureOne filter...only about 600 miles on my engine. I did the initial break in with the Comp Cams break in oil and a Pure One filter then changed the oil and filter to the oil I'm running now. I plan to change the oil again when we get back from out trip. Should have around 1000 miles on it at that point. Still not sure what oil I'm going to run. Probably the Comp Cams 10w30 Muscle Car and Streetrod Oil.
I guess I should rephrase my earlier comments. My experience has mainly been with XJs with thw AW4 automatic. With the auto, stock size tires and a stock 4.0L the Jeep will typically see 2300ish at 70, 2500ish at 75, and 2650ish at 80. So yes, I was a little off in my earlier comment.
