Hotwater Heater To Supertrapp.

[Micksan]

About a week ago I posted a question about mufflers . One of the answers I got from a guy in England suggested Supertrapp. Sounded like a path to explore. I checked around a bit . The dealer wanted well over $300 . I found a 4 inch diameter 24 inch long universal new unit on Ebay for a $140 including shipping . Got it about noon , and had it installed by 3pm at a local muffler shop for another $30. It replaced a 7 inch diameter by 25 inch long Yamaha (?) muffler that weighed . I have included a link to some pictures to show the difference .
Took it out for a ride . What a difference. Got rid of a lot of back pressure , between that and the K&N air filter I installed 4 days ago ,to replace a very dirty paper filter, this bike now feels like the rocket it is named for.
For those of you who use the Supertrapp >> How many baffles are you stacking ???
Rocket III - Marooney's Photos

 

[tdragger]

hard to not play with it, ain't it?

Have you been adjusting the ECU for the higher volume of air moving through the system. You may be running dangerously lean if you haven't.

 

[Micksan]

If it was running on the excessive air side there would be the back firing. That is why I wanted a tunable muffler.
I dop not want to mess with the ECU.

 

[HellFire]

You've replaced the factory exhaust and you don't want to "mess" with the ECM?

I do wish you luck, hopefully you don't melt anything important.

 

[Micksan]

We are going out riding tomorrow before the cold front moves in. Then I will set it on the lift for some maintenance , at which time I'll pull the plugs to get a look see. That will say a lot about the mixture.

 

[HellFire]

An exhaust gas analyzer would say more, but if you are set on only replacing the exhaust and nothing else ... you might at least have the Triumph aftermarket exhaust tune loaded into the bike just to be safe. It will cost you a tad bit of power since it closes the secondaries a little more, but it's better than damaging pistons.
Plugging in a PCIII doesn't change the ECM base tune and allows for fuel trim changes either loaded or manually adjusted, you can always take it back off down the road with no permanent changes to the ECM.

Fuel injected bikes today are very lean from the factory for emissions, making it leaner with add-ons makes me nervous for you guys who don't add fuel.

 

[fat frank]

Nervous. Bwa ha ha ha
I am running the triples and Tors with matty's tune. (modified). I installed the free flowing crossover on my Roadster and when I put it on the dyno, my A/F went from 13.1 to 16.5. If you push more air thru, better watch for the right fuel mix.
It's your bike, but you can go to any bike shop with a dyno and have them check the a/f with a couple of pulls.
Later
BTW, Triumph generic tunes are already lean for emission concerns. Be careful

 

[Micksan]

I got some more info from the previous owner . He had included a set of Drag pipes that were on it when he purchased it . The bike had been running fine . No back fire , just lots of noise .Believe he may have had it to a dealer.
That is when he decided to put the Yamaha warrior muffler on. He noticed that it dragged down the power & MPGs , but was willing to live with it.
I have a little over 100 miles on the Supertrapp with 9 plates installed. Really like it. Improved performance, without the windows rattling .

 

[HellFire]

Still think you should think about a PCIII or TuneECU. For sure you are missing out on extra power, and a good chance the fuel trim could be off enough to do damage in the long term.

Just think of all that fun you could have with an extra 7% off the line and the peace of mind that you aren't melting little spots in the tops of the pistons. No pressure. lol

 

[Micksan]

Tried two PC III s in the past on two different bikes. Kept for a short time and sold them on Ebay. Will not waste my money on them again. Yes they were set up properly , by one of their dealers . Problem is if you change anything , it is back to the dyno again. Found out that a good tune up , balancing the throttle bodies , and adjusting the TPS to either lean or enrich did a lot better job. Never heard about the other tools. But figure they are probably the same as the PC III.