What I'd like to know is why you're trying to run a high performance 124 between 1500-2000 RPMs?

 

Good question!

Run a hot cam that's "great all the way to redline" and expect it to perform at low throttle is absurd.

 

PV's a great for a guy with stage 1 or 2 build but once you start getting into auto tune their are much better options. TTS or TM would be (my opinion) a much better route and for those saying a hot cam shouldn't perform at 2000 RPM's, why not? You should be able to crack the throttle and get instant response all the way to redline without getting a dip in performance. He's got issues, somethings wrong... cam, intake, tuner, pipe, so many variables.

 

I just found a nice video of showing the sound of S&S 550 cam for those who are interested like me ^.^ and looking for potato vibe.

Another older one is here

 

Did you ever get the 128 tune sorted out, and if so could you post your conclusions and dyno chart for the benefit of the rest of us?

 

Is it possible that the O2 sensors are in the wrong pipes. Simple mistake that can make a tuning nightmare.

Neil
RDMC

 

Were you able to find out any more about this issue? I have the same build with the same problem right now and my shop is at a loss right now. I will ask about the throttle blade adjustment.

 

What is your exhaust? Have you tried play with the exhaust?
- Fuel Moto Dynamic Exhaust Tuning Inserts
- Fueling Anti-Reversion Dog Ball Baffles
- Exhaust with Anti-Reversion chambers like Thrashin Supply

 

This is a 2 year old thread and the op hasn’t been on since. Don’t think he’ll respond. Tom might be able to help though