installed arleen ness big sucker have rush muffs and pcv.before the air and pcv install cruise up moutain 70mph accel no problem now motor booges down,down shift bring rpms up shift to 6th starts gowing down agai.any ideas

 

What rpm are you trying to use 6th gear with? On flat road, 6th is rarely needed or desirable below 3000 rpm.

 

3000 or above,flat ground is ok could better,going up mountain on interstate terrible. also tried auto tuner several rides no help had to give it back to my buddy. got new map from jamie fuelmoto bike runs good but same problem with 6th gear.help! i guess i need help with using the forum since im not getting responses anyway got to go check later. maybe delete. this try something else

 

I`ve added more to my problem any help

 

Need to change the gearing or stay out of 6th gear under 80. That was my solution. I am trying to find a way to change the gearing without screwing to many things up like the speedo and the cruise. Still researching..

 

It's either a tune problem, or you have the problem that many stock 08s have - less than ideal gear ratio. First gear is too tall and sixth gear is a dog under 70 or on a steep grade.

 

6th gearing is too high. Chances are you can accelerate to a higher speed in 5th gear than 6th gear can hold.

Bwana

 

As discussed I would recommend changing out your 2.5" baffles or try a different muffler. These baffles are too large and will not scavenge properly and on a stock motor can greatly affect performance, especially in the lower RPM's.

 

The changes you have made will move the torque higher in the rpm range. You will have lower torque at lower rpm compared to what you are used to. Put some restriction back into the exhaust and you will see more low end grunt.

 

tried to order rush baffles from j&ps that was a mess canceled that.spoke with jamie , waiting on my jackpots and autotune. i believe this is the fix,let u guys know in a couple days.