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Discussion Starter #1
Hi all,
Bike is a 954 blade, fuel injected

I would like to fit just an end can ( Pipewerx) with a removable baffle and was hoping someone could tell me if i need to have the fueling altered.
Pipewerx website state no modifications to fueling are required.
Would the bike run too lean?
It has a standard air filter fitted.
I'm not bothered about performance, it has enough, only want one for the soundtrack.
If i have to have a power commander I'd rather just leave it stock.
Thanks

fueling
 

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Hi Leigh.

I have a 954 with a Carbon Can on it and have no fuelling probs at all. Some bikes might 'hunt' at idle, which is a cammy rhythmical up and down idle. It does the bike no harm.

I am sure you'll have no probs and will not need the Power Commander.
 

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I agree with Nigel, Leigh. I had a 929 with various end cans on it and had no problems.

One of the benefits of electronic engines is that they aim to actively manage the ratio of the fuel to the amount of air.

With Gasoline/Petrol engines you control the air by the "throttle" which is connected to the butterfly valve (that "throttles" the airflow).

Given the requested amount of air, the carbs/injectors supply a matched amount of fuel.

With your FIE engine: in your exhaust downpipes, you will find a welded boss with a sensor screwed into it, trailing wires. That is the Lambda Sensor.

It measures the oxygen content of the exhaust gases and provides the information to the ECM.

If the engine is running lean (not enough fuel) = too much unburned oxygen in the exhaust = the ECM tells the injectors to put in more fuel.

Everything is easy at constant throttle settings, and becomes a mite more tricky under transients (snapping the throttle open & closed), but a well calibrated system (by the OEM) will significantly "self correct" for changes in intake restriction(*) and exhaust back pressure.

(*) By example, as your air filter becomes dirty over miles, it will become more restrictive, the FIE will accommodate the reduced airflow and reduce the fuel delivery. New filter in, back to full fuel delivery. Quite cunning really.

[P.S. The latest engines are more sophisticated and intend to run lean a lot of the time .............. but that's a whole other conversation with new sensors, knock].
 

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not a single problem here :)
Wow! Never have I seen an SC Project on a 954 or pre-2008 Honda. Did you have the link pipe specially made or did you adapt yourself?

And it just seems to be floating in the breeze with no rear anchor point.:eek:
 

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Wow! Never have I seen an SC Project on a 954 or pre-2008 Honda. Did you have the link pipe specially made or did you adapt yourself?

And it just seems to be floating in the breeze with no rear anchor point.:eek:
haha me neither. there is no special link pipe or anything, i just bought a second hand 929 mid pipe and took it to an exhaust shop and they adapted it

it is quite loud
 

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I would think it would be fine tbh. If you did more mods to the engine/fuel/air system it would be worth getting it on a dyno, but with just the end can I wouldn't be worried. If its a US model with a Cat and O2 sensor it will probably sort its self out anyway!
 

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on these bikes you can do a slip on without a fuel controller, if you install an aftermarket high flow air filter that's where you'll need a fuel controller or power commander.
 

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on these bikes you can do a slip on without a fuel controller, if you install an aftermarket high flow air filter that's where you'll need a fuel controller or power commander.
I didnt install a fuel controller and didnt notice any issues at all :devil
 

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I agree with Nigel, Leigh. I had a 929 with various end cans on it and had no problems.

One of the benefits of electronic engines is that they aim to actively manage the ratio of the fuel to the amount of air.

With Gasoline/Petrol engines you control the air by the "throttle" which is connected to the butterfly valve (that "throttles" the airflow).

Given the requested amount of air, the carbs/injectors supply a matched amount of fuel.

With your FIE engine: in your exhaust downpipes, you will find a welded boss with a sensor screwed into it, trailing wires. That is the Lambda Sensor.

It measures the oxygen content of the exhaust gases and provides the information to the ECM.

If the engine is running lean (not enough fuel) = too much unburned oxygen in the exhaust = the ECM tells the injectors to put in more fuel.

Everything is easy at constant throttle settings, and becomes a mite more tricky under transients (snapping the throttle open & closed), but a well calibrated system (by the OEM) will significantly "self correct" for changes in intake restriction(*) and exhaust back pressure.

(*) By example, as your air filter becomes dirty over miles, it will become more restrictive, the FIE will accommodate the reduced airflow and reduce the fuel delivery. New filter in, back to full fuel delivery. Quite cunning really.

[P.S. The latest engines are more sophisticated and intend to run lean a lot of the time .............. but that's a whole other conversation with new sensors, knock].
I support your view on the end can. This answers Leigh question better. Thanks
 

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I didn't install a fuel controller and didn't notice any issues at all :devil
Chances are you really won't notice a dramatic change or have an engine failure, however your engine will run hotter especially under constant high RPM like at a track or spirited canyon riding.
The stock Fuel injection can compensate for the added air, but only so much, the extra fuel will cool the combustion as well as lessen the chance of detonation.
 

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Chances are you really won't notice a dramatic change or have an engine failure, however your engine will run hotter especially under constant high RPM like at a track or spirited canyon riding.
The stock Fuel injection can compensate for the added air, but only so much, the extra fuel will cool the combustion as well as lessen the chance of detonation.
well i have to change the exhaust for the inspection, so i will keep an eye on the temperatures when i put back on the oem

when i usually ride it on the track in summer it's about 100ºC (212ºF), but it's hot here so..
 

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Discussion Starter #14
Fitted a Scorpion Red Power Exhaust road legal with removable baffle and bike runs great.
Dont think I'll bother putting the baffle in as its not overly loud or offensive like some cans, just a nice deeper sound.
 
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