Detune for emissions

[Bamboo]

Hi!

I just joined and did a bunch of reading, and first off, thanks to everyone for all the awesome info!

You are all going to think I'm crazy (I do), but I need to detune my ecu to get less power and torque from my 2012 r3 roadster.

I just bought it a few months ago, and I LOVE this bike. But my work is sending me to Japan. One of the hurdles in importing a bike to Japan is their requirement for meeting a particular standard for the brakes. A very helpful gentleman at Triumph Japan is sending me the Certificate of Conformity for this, but he also informed me, with clear regret, that the Rocket 3 Roadster does not meet the Japanese emissions requirements, and they have no technical solution at the moment.

Argh.

Ok, I can handle this. A million years ago, I had a tuner car and had a lot of fun tuning it, so I've a little experience with F&I maps... Just enough to be dangerous.

So, how do I get my r3 to pretend it's a little put-put bike? And how do I get it to do this safely?

My knowledge leads me to this plan: Adjust the throttle to prevent it from ever opening past, say, 50%, then I repeat the following steps several times:

1. Adjust fueling to minimizing exhaust O2 (goal is stoich AFR).
2. Adjust the timing to minimize EGT.
3. Repeat until dialed in.

Any tuners out there with thoughts on how sound an idea this is? And if so, how should I accomplish it? It looks like TuneECU is the best fit for the job, but please let me know what you think!

Many thanks,
Bamboo

 

[Macrider]

Do they do an actual emissions test on your bike?
I would worry about it after the bike was shipped to Japan, it may not fail.
If it does then your best bet might be tune ecu and you can adjust the air fuel ratios to whatever Japan needs to fit their emission standards.

 

[CanberraR3]

Welcome, Bamboo. Can't really help with your problem but surely there are Rockets in Japan???? I've seen at least one on You Tube. And in any case, doesn't California set the high bar for low emissions? There must be some way to meet the standard without turning the bike into a marshmallow.

 

[Mittzy]

Hi and welcome Bamboo, I love Japan. But I can't help here sorry.

 

[albertaduke]

there must be several R3 roadster in japan for sure we saw one about a year ago when posted on youtube. had custom exhaust and definitively looked like a fast machine I would say
obviously some riders have found a way

 

[Evil Mitch]

I think if i had to detune a 360 kg bike id just sell it and get something else
Kinda defeats the purpose of a 2.3 litre . Detuned it would just be a big heavy pig of a bike IMO Id go for a speed triple in japan still a trump uprite naked hooligen machine

 

[xhdskip]

Bamboo,
if you read and write Japanese,
there's a Japanese Rocket site
that pig9r post a link to several years ago
with some sharp looking bikes on it.
Welcome to the site from Oklahoma, U.S.S.A.
Good luck.
skip

 

[Bamboo]

Hi everyone, and thanks for the replies!

Here's what I know: registering a bike requires an emissions test, and this test is RIDICULOUSLY expensive in Japan; about $600. It pays to make sure your bike will pass before you take the test.

I'm sure there are r3 roadsters in Japan, but I'm not sure they're legal, given what the Triumph rep told me. Yes, I realize that detuning is suboptimal, but it's preferable to getting a different bike; I just got this one and I like it. If Triumph comes out with a solution, then I'll use that, but in the mean time, I'd like to find out the following:

1.) What are the emissions test numbers that I have to meet?

2.) How do I detune my bike to meet those requirements?

Any help with either would be much appreciated!

Thanks!

 

[TOMCAT]

G'day Bamm , Welcome ... just wanted to let you know you are the very first Owner that i can remember that wanted to get less power of their bike. I guess congratulations are in order but it just don't seem right somehow.. good luck with your dilemma PS i agree with Mitch , a Speed Triple or a Street Triple be a far better option... just my opinion.

 

[Gothlander]

I would make sure that the bike has the catalytic converter fitted and a charcoal canister like on the bikes sold in California. You may be able to use a high octane fuel with a lean tune to lower the emissions. Good luck.