Checking your engine performance on a chassis dyno?

[Jerry Clayton]

.020 on the rods? there aren't many of the high quality bearings in the .020 undersize-

thats a lot of pressure drop from cold to hot on the oil--I assume probably that you don't have a cooler? and or you are using light viscosity oil?

I don't see any a/f ratios on your graph and also noted that the devisions of the graph are pretty weird---they evidently have hp graphed from 0-650 to come up with those divisions-makes it hard to tell hp/tq at a glance compared to a graph that is divisable by 10---example 0-500 --each line would be 50 hp instead of 65 and you could tell where you were--well that isn't relavent in your case but I try to always get the dyno operators to scale the graph so that it not only is easy to read, but they have a consistant look between cars and tests

I'm leaving at 5 am tomorrow for the London Cobra show but am ancious to get back Sunday to see more on this