Questions about R3R Unrestricting -- Why?

[ricochet]

Hey Everyone!

I wanted to educate myself a little bit about how the Rocket works before I try do a couple of things to it, mainly the unrestricting of the 1-2-3 gears. I tried doing a google search for "Secondary Throttle" and a lot of sport bike forums showed up, mostly with the Kawasaki forums and the Zx14 bikes that they are trying to do the same thing with either physically removing the butterfly valves or disconnecting them electronically.

I read that most of them found that they had increased performance in the lower RPMS which was also interesting.

A few others said that the bike would run lean if they didn't have a Power Commander or fuel processer installed.

From what I've read on this site, unrestricting the rocket involves setting the secondary throttle plates to 100% on the entire grid.. But the fuel mapping and ignition timings stay the same. Why doesn't the rocket require additional fueling if you are essentially adding more air? Does Fuel Mileage suffer or cause a lean condition when the plates are open 100% all the time?

Would opening the throttle plates all the way all the time also help with low speed idle hunting?

I've never owned a bike with these secondary throttles (as far as I am aware) and I am fascinated by why they would be installed on this bike (or others) as if they are only there to help dilute the power in the low end, or possibly for gas emmission standards...


Does unrestricting the bike essentially provide the same solution as installing a timing retard eliminator? On my suzuki that TRE copied the fuel mappings from 4th gear into the 1-2-3 and dramatically improved low speed performance, with no surging at all and opened up the redline in the higher gears as well.

 

[Steel]

The TRE I installed on my Suzuki fooled the ECU into thinking the bike was in 4th, so the timing and fueling were automatically fixed.

In Tune ECU for the R3, you actually copy the timing and fuel tables to put into the lower 3, and then open the secondary throttle plates in the settings. By copying the fuel tables from 4th you don't need an outside programmer like PC to add fuel.

 

[rolandrat]

I bought the gipro with tre,it works great,as steel says it adjusts the timing,but the cheapest way is to buy a cable and re-map with tunecu.it looks quite daunting but is easy.carefull though its addictive.iv gone full circle and installed standard triumph map and decided to leave things alone.lol

 

[Tripps]

Man, it's weird, I remember reading these threads, but the bike is so far past that now, there is no longer anything helpful for me, LOL.

 

[Bluemarlin]

Man, it's weird, I remember reading these threads, but the bike is so far past that now, there is no longer anything helpful for me, LOL.

I got tune boy in '06 and installed a tune that fully opens the secondaries when you shift into gear. This makes the bike very responsive to throttle in the first two gears. Some people were physically removing the secondaries at the time which I think is a waste of time.

 

[ricochet]

The TRE I installed on my Suzuki fooled the ECU into thinking the bike was in 4th, so the timing and fueling were automatically fixed.

In Tune ECU for the R3, you actually copy the timing and fuel tables to put into the lower 3, and then open the secondary throttle plates in the settings. By copying the fuel tables from 4th you don't need an outside programmer like PC to add fuel.

When I connected TuneECU to my bike, I opened up the 2nd throttle plates to 100% but I didn't copy over the timing and fuel tables... did I make a mistake? I was under the assumption all that was needed was to open the secondaries to get unrestricted.. Can someone chime in and let me know if everyone copies the timing and fuel tables to the first 3 gears? So far my bike seems to run fine as it is but if it can be improved... I want to do it!