Yes, Foothills Triumph. I may have to get with you and have you explain what it entails to do the secondaries. I am pretty handy mechanically so I should be able to do it as well. Just may need some direction and advise. My bike is fast enough for now. I just want a different sound and would like to have the full power. Every bit helps when you are losing between 15-25%hp due to elevation. I bought the bike in Vegas and it was mean there! I could roll off a stoplight get to about 5mph and roll on the throttle and the back tire would break traction and get slippery for awhile!! Not even the same here. It still runs strong but nothing like at sea level. I wish I would have never had it at sea level then I wouldn't miss all the extra power. I would like a deep throaty sound along with some extra hp. Still won't run like sea level but will be closer. I also hate the fact that we have been protected from ourselves with the detune. 7% would be a big step back towards sea level perf. I have a Brute Force 750 four wheeler that had the same kind of b.s. Detuned it so people wouldn't get hurt. So I bought a unit to eliminate that and would accept custom maps etc. My new corvette was detuned in a way also. Had some work done to it and dyno tuned to reach it's full potential. Now i'm ranting and ramblng sorry......Craig
The so-called de-tuning results from partially closing the secondaries in gears 1-3. This doesn't limit peak HP but it limits torgue in the max range (2000-3500 rpm) by about 12 lb ft (on my bike). There is a commensurate reduction in fuel. You can get back the air and fuel in 2 ways: 1) Tuneboy, which lets you open up the secondaries all the way and add back the fuel, or; 2) PCIII, which only lets you add fuel - after you have manually removed the secondary plates. However, with this option, there's a rub. The underlying stock tune in the ECU is still telling the ECU that the secondaries are closed to some extent. For example, in the 20150 tune, at 2500 rpm, the map is telling the ECU that the secondaries are open 30, 30, and 40% in gears 1,2 and 3. The ECU is then supplying different amounts of fuel in gears 2 and 3. When you map with the PCIII, this isn't accounted for - you're just adding fuel as a function of throttle position and RPM. The PCIII adds fuel to whatever is coming out from the base Triumph map. The PCIII would presumably add more fuel if you were tuning in gear 2 than in gear 3. Since most people tune on Dynojet dynos in 4th gear for peak HP, this issue is generally overlooked.
