Lean vs Rich, Exhausts and the lust for more performance. Honest Question.

[dougl]

....turns out the tune in the "R" model at least is capable and dosnt require change even after the cat box has been removed and a new exhaust system has been installed. The end result has the 'sound' we all love...not too loud so as too turn the public's head but certainly will turn the heads of those who know what 'nice' is....

What are we looking at here? 134 hp at what TP and RPM? The A/F looks weird above 100.

 

[Tal]

Its not my bike obviously...my cobbers...the A/F is 13.2 ish by the looks...looks pretty good if not a tad rich...prefer rich to lean myself...

 

[Daytonastar]

I think it is fair to say that modern engines do not run at the best they could perform due to regulatory standards - mainly emission and noise. As we all know, new engines run very lean, especially in the reve ranges where emissions are measured. Carefully adjusting these setttings are not likely to do any harm to the engine (if the person doing it knows what he or she is doing, of course). Short of owning a dyno, the combination of a Powercommander with an Autotune module has been a good solution for me.

The question of tuning a Rocket 3 to me is not primarily about more power. The question to me would be: Is the stock engine already the best it can be? Or is it limited, strangled and de-tuned - and desperately longing to be freed?

Well I had a 2 liter Peugeot GTi over 20 years ago that made 180bhp - hard to think that today with 25% more capacity this thing isn’t restricted as hell.

 

[bccass]

Its not my bike obviously...my cobbers...the A/F is 13.2 ish by the looks...looks pretty good if not a tad rich...prefer rich to lean myself...

You know what exhaust they were running?

 

[Tal]

Yep....its just been manufactured by a very respected exhaust manufacturer here in town...its a first and most likely a one off due to the difficulty of its construction but things have been learned from it...roll on the next version.

 

[dougl]

Well I had a 2 liter Peugeot GTi over 20 years ago that made 180bhp - hard to think that today with 25% more capacity this thing isn’t restricted as hell.

This is a meaningless comparison. Triumph has to deal with today’s constraints. If Triumph had wanted a lot more power, they might have started with the S1000RR rather than a Rocket III.

 

[Tal]

look at this big heavy bastard!!!'''the cat box out of a 2020 R model...13 kg!!

 

[Paul Bryant]

Yep....its just been manufactured by a very respected exhaust manufacturer here in town...its a first and most likely a one off due to the difficulty of its construction but things have been learned from it...roll on the next version.

look at this big heavy bastard!!!'''the cat box out of a 2020 R model...13 kg!!

Geez Tal, it's as ugly as you

 

[Tal]

....you been on the lion brown again m8?

 

[Paul Bryant]

....you been on the lion brown again m8?

Lion Brown ? Lion Brown ?
Nah, I've got some moonshine that I bought for several hundred bucks, mind you I did get a Corbin seat thrown in with the deal