Thought you guys might be interested.
I have been riding with the Triumph sport pipe fitted and have been very happy. Except this pipe is not legal in OZ. Cops in some states have been pulling riders over and fining or taking the bikes off the road on the spot.
For this reason, last week I fitted a Staintune brand (OZ made) pipe that comes with a noise rating compliance plate and is therefore legal. It has a removable rear baffle. With the baffle it is legal, but has quite a flat spot off idle. Once it goes over this, it takes off with more power than the Triumph sport pipe, but it makes for interesting riding in the wet (like a 2-stroke!).
Without the baffle, it is fine and not too noisy, but not technically legal.
To get to the point, I have decided to fit a Dynojet powercommander next week. I have done my homework, and all the feedback is positive and it should solve the problem. With a high flow BMC airfilter and the pipe, the standard injection map will not be optimal, so I have arranged to have 2 custom maps made for the bike. 1 with the baffle and one without.
For those that don't know, the Powercommander is an electronic unit that takes the fuel injector signals from the ECU and modifies then in any way you like. The idea is that standard bikes are about 75% right when it comes to EFI mapping for fuel-air ratios at most throttle settings. The Powercommander is plugged in between the EFI and injectors, the bike put on a dyno and many probes put in lots of orifices. The bike is run up on the dyno and the system automatically custom maps for the bike. Maps can be adjusted by PC at any time and loaded in seconds, and the system can be adjusted with buttons on the unit if the bike is taken up high mountains for example. The O2 sensor is usually bypassed as part of this, but I have already done this.
Look here:
http://www.powercommander.com/
Apparently Dynojet are soon bringing out an accessory that plugs into the powercommander that can load and switch between 2 maps. So, all going well, I can ride without the baffle in places where the cops will not care, and install the baffle (1 minute job) and flick the switch to have "perfect" fueling at all times. I am told that Triumphs respond really well to this. Very little extra top end power, but quite a bit of mid-range, smoother power curve, no flat spots and better fuel ecomony. I hope all goes well.
Has anyone else used one?
I will keep you posted how it goes and give a totally subjective assessment on how much hoot and grin factor you get for AUD$800.
And yes, I am a unabashed gadgethead. I hope you appreciate the trouble I go to spending time and money experimenting for the overall benefit of Tiger riders world wide!
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