Can you say Cold Cranking Compression!!!!!!!!!!!!


That would be 240 PSI!!!!!!!!!

 

Wow! And I thought my 200psi in both cyl was solid. Looks like there's a lot of potential left on the engines.

 

Good stuff Steve,, I'm getting interested in a 17 RK.. Probably won't be until the end of the year beginning of the next tho.

 

That explains excessive spark knock. I guess it's easier for HD to just squeeze the Hell out of them than to actually engineer HP.

 

Thanks man

 

Here is a little more for you all. The first dyno graph shows the ECM reprogrammed to remove just the VSS limiter, no other changes. No need to unplug a VSS to play games, just reprogram it out. So we have a run from yesterday in 5th gear with vss limiter in place, runs from today in 5th gear and 6th gear with limiter removed. As you can clearly see the MPH is higher before power cut occurs. The second graph just has the axies change to RPM so you can see it pulls to the same place in 5th or 6th with the limiter out!

So we've got ECM programming up and running!

 

Looks like you approached it like somebody that actually knows what you are doing.

 

Good news I got two bikes to tune in the next couple weeks so that is really good news. I cant wait to get a full tune on one of these knotheads

 

Wow! Actual back-to-back testing with all other variables unchanged!
This is how experienced racers and developers test.
Thanks Steve!

 

Here is the next step. If you looked at the power curve it would end sloping downward in a step fashion before it ever got to the RPM limiter. So there had to be something holding it back or telling the ECM to reduce the power, long before the RPM limit was reached. This graph again is one run from yesterday in 5th gear with the Vss limit removed and today's run after resolving the power cut back issue. NO other changes, just the way it was before. So if you look at the end of the run you can see the changes and how it effects things.

It may seem to some of you a bunch of little things but in the end this is what makes things work the best, solving each, one at a time, with no other changes. Once that's done you start to put all the small changes together to see what you've got.