What difference with this tune do

[motolink]

20352-2, Rocket III Roadster Standard exhaust fully open secondaries 260 km/h topspeed no ignition retardation


what difference will this tune make to a stock Roadster.

 

[HansO]

should make it smoother and more powerfull of the get go, no restriction or dumbing down in the first 3 gears will probally lift the front wheel if you aren't carefully take it easy till you get used to it

 

[motolink]

The bike is great but the at low RPM in the low gears its quite jerky when going on and off the throttle in traffic and I do get a cough or to when hitting the throttle when changing down after cruising.

 

[HansO]

The bike is great but the at low RPM in the low gears its quite jerky when going on and off the throttle in traffic and I do get a cough or to when hitting the throttle when changing down after cruising.

the jerkyness will improve with the secondary's open the cough unfortunitly is a rocket trait which minimise with the tune will most likely never go yoiu will find that just about every rocket does it, as I said previously the secondaries open100% will smoothen out the bottom end

 

[motolink]

Without the tune when do the secondaries open.

 

[HansO]

Without the tune when do the secondaries open.

not till a lot later in the first three gears I am not sure about the roadster but in the STD and Classics they are 75% closed for quite awhile in the first three gears.
most captains pull the secondaries out and also put triple K&N's on to really make em breathe

 

[motolink]

Where in the Tune Ecu maps can the secondary settings be seen?

 

[Gkiller]

Where in the Tune Ecu maps can the secondary settings be seen?

Under "2nd Throttle" in left-hand menu. Just cut/paste 100 to all cells in table.

 

[motolink]

I see, I am starting to understand. by opening the secondries to 100% will it become lean.

 

[dougl]

I see, I am starting to understand. by opening the secondries to 100% will it become lean.

The secondaries are open only to about 30% around peak torque in gears 1-3 in the 20352 tune. The loss in power isn't proportional to the reduction of the secondaries but it's a significant effect. In my case, using a TORs/cat bypass tune, opening the secondaries 100% gave me back 13 ft lbs from about 2500-3200 rpm. There's an obvious dip in torque and hp in the peak torque range where they close the secondaries.

Also, I saw no increase in A/F anywhere in the power curve by opening the secondaries 100%.

Are you thinking about copying I3 into I2 and I1? Most of the difference between I3 and I1 and I2 is below 8% TP and between 1600-3800 rpm. I3 is more advanced than I2 in this area but what do you expect to gain from messing around with this?