30 weight was recommended by the builder for break in.
A few fast 3G Hemi's on the drag strip have benefitted from adding oil drainback lines from the rear of the valve covers to the pan.
I tried a quart high and a quart low. Did not see a difference.
I'm putting 10w-40 conventional in...
That's some solid data you have! I like it! What data acquisition system are you using? Mine is all through megasquirt MS3x. At some point I'll need to add more sensors - I only have 3 generic ports currently wired, but it can handle like 16. So for the time being, I'll be swapping between oil...
A_Harman- factory bearing specs above (looks like we posted at almost the same time).
last motor was a stock 6.1 that was pulled and sold. New motor is ~100 rwhp more. Unfortunately I was not logging oil pressures at the time.
Data is from data logs (aside from oil temp- dash gauge).
Sensor 1 is oil pressure post filter.
2nd gear pull on street.
3rd gear pull on street. Last of day. Oil maybe slightly warmer?
Factory service manual states .0009-.0020 main, and .0007-.0023 rod. 0.002 main and 0.0025 Rod is pretty common practice in these motors.
I was running the straight 30 wt for break in. Was going to swap that out for 10w-40 conventional, then swap to 0w-40 synthetic. But, now I'm wondering if a...
The motor is used for HPDE / road race / street driving. I shifted the last motor at 6,000-6,200 rpm, and this motor I'll pfobably shift at 6500 and maybe leave it in gear at 6500 or so when slowing for a high speed corner. The motor will see 7,000 on occasion.
I was just trying to follow the...