Originally Posted by LantanaTX
Sounds cool. I can't stand naysayers but I thought you were breaking some new ground at 25% Will your data logger show what is going on with timing? This might be an application where some VP 105 might be fun to try. Did the stock pulley or the new one have any balancing or are they neutral balanced? Some of the various 24 valve V8's might have a suitable pulley that can be used.
I can wire up my datalogger (Innovate SSI-4) to measure timing, but requires some extra modules that I don't have and don't care to wire up just yet, as I want to have something tuned by this weekend and I'll have to order an optical sensor from digi-key and wire up my own pulsing crank monitor... which isn't on the list of things to do this week.
VP105?
I'm using the OEM harmonic balancer. Refer to my first post, to save weight I shaved the outer ring around an OEM E320 pulley, since it wasn't as thick. I hadn't mentioned before that before this pulley, the other 192mm pulley I tried was made from the stock pulley off my car with a steel ring pressed around it. The ASP pulley was just over 9 pounds, and this monster was 13 pounds! I almost didn't want to try it because it was so heavy. This pulley was try #2, out of a lighter OEM pulley and used aluminum which overall turned out under 9 pounds.