killer5280

Since I'm planning to install high compression pistons and have some valve, cam and port work done to my Superhawk I wanted to get a baseline dyno run to compare where I am now with what I end up with.

My Hawk is a 1998 model with about 16,000 miles. It has D&D slipons, a stock air filter, shimmed needles and +1 size on the main jets. Otherwise everything is stock.

I don't have the graphs from the dyno run yet, but I will post them here when I get them, which should be in the next day or two.

The best run was just over 104 HP with 66.5 lb. ft. of torque. The graph is smooth with a dip around 4000 rpm indicating that the engine would probably benefit from changing the pilot jets to 48s. This confirms my seat of the pants impression of a slight flat spot or hesitation low in the rev range. Not bad, but not perfect. Top end jetting looks just about right.

jschmidt

I'd call that a slow needle. Anyway, congrats on the run.

killer5280

Could be. It does seem a little high to be the pilots.

woodman