The on ramp challenge
 

I'll bring my 351 with stock exhaust, better make sure you guys have it tuned up with a new plug!

I want to warn you too, mine will have dirt on it!

Have the rider on the MCM bike ignore the tach and ride it like an off roader - aka shift when it quits pulling strong. None of that ten grand crap. The HP peak is around 8600 rpm on both bikes.

Exactly Mark !
To expand that thought a little, max accel would require a timed trial and error session for each rider and each bike - the extent of delving into over-rev before shifting is dependent on the TRQ curve of the over-rev and the desired RPM after the shift - which also depends on the TRQ curve... All I can offer is that the MCM bike has an extremely gentle/shallow over-rev power drop off and significantly better TRQ curve below 6500 rpm.. The non-MCM bike should never be allowed to dip below 6500 rpm after a shift as the TRQ for such bike below 6500 rpm is far below even the levels produced from a stock KLX !

My knowledge and information in this matter concerns two KLX's with lidless airboxes, proper CVK setups, full FMF exhaust systems, with one having the MCM and one not..

This is the key, period. More power at any given rpm below 6500, where the engine is used the most. You don't find that value on some drag race comparison anywhere. You find it when off road, especially when riding in sand or slow maneuvering on tight difficult trails or going up rough hills. Places where the bike is working from 5000 rpm to 8000 rpm.

Does it strike anyone else as odd that the inference is that different riders will introduce less variability than dyno runs?

Very true. Even multiple runs could vary significantly. I had a friend who was drag racing a 57 Chevy with 4.11s a hi-rise and four barrel running e.t. brackets. He was ultra reliable, since the Power Glide wouldn't spin the tires, shifting out of low at 7000 rpm. When he got up in the rounds he got all excited and ran it to 7200 rpm and broke out. Two hundred rpm made the difference. So even a slight difference in shifting can make a difference in results.

I'm thinking dyno runs use fourth gear, probably to increase the time it takes to reach peak enough to increase the delivery of data to plot it accurately. If done in one of the first three it would be too easy to have the tire spin on the dyno or have it rev up so fast as to make too few data points reducing accuracy. Heck the data is all about statistics and if you don't have enough points of data the statistics are less reliable. Going above fourth is not needed, probably doable, but not needed.

But I could be wrong... and it wouldn't be the first time.

Is she lighter than the other rider? Re: Shayna Texter or Angele Sampey.

By the way, this is all in fun. Regardless of any outcome, for me it isn't any big deal. It's like shop talk. Fun! I'm waiting for the outcome, regardless and really just wish I could be a participant, just for the BS session before and after.