Halo every body. I have some problem, and I hope thatwill be some specialist hear of it and I find some solutions.
I looking similar subject and I dind'n fous thats I write new post.

Thing is: In my dyna street bob 2006year, 1450cc, with injection system, I have already instaled exhaus tubes BIG SHOTS STAGGERED (http://www.vanceandhines.com/store/d...lsystems/17919)
and now I'm thinking about instalation of K&N air filter HD-1499 (http://www.knfilters.com/search/appsearch.aspx)

My question is if I have to instal new module of injection system (fuelpack or other) or I can instal this filter wiht my oryginal injection stytem with any problems. Thing is that I wat to instal this filter becouse of miltiple use and not buy every 8000 km paiper filter. I don't care about more horces, I only want have filter for more time.

Some people told me that absolutely I have to instal new module of injection system and regulate it for new filter and my tubes becuse it meke together bigger quantity of air to engine, what in consequence engine work will be not steady, and the temperature of engine work will be higher???

Others tell me that I can instal filter for my origin injection system with any changes. Injection automaticly ajust the mixture what need.

My idea of this filter is save money to not buy every 8000km new air filter, and I don't need more power on my bike, is anought for my turistic riding.
Finally the screamegle fuel injection for K&N filter costs about 700$ so is too much if I don't need
I only want that it will be safety for my bike and if not I stay with paper filters.

Thank a lot for help, I will be grateful for any informations.

 

Yes! you absolutely have to add a programmer to your bike. They are already tuned lean from the factory for EPA blah blah blah....... Once you add pipes and an air cleaner your bike will be even leaner...HOTTER!! You risk damaging your motor. If you dont want to mess with dyno tuning or computer tuning, just pick you vance and hines fuelpak. There are waaay better options available, but plug and play fuelpak is your easiest solution.

 

Actually, if you're just changing the air filter element, not the actual breather, you should be fine if your bike is running good as it is.

Where it comes into play is if you replace your breather with a Screaming Eagle AC, Arlen Ness Big Sucker, or some other high-flow air unit. Just changing the filter element won't change the airflow.

Welcome from America!

Roger

 

It is hard to say if you need an adjustment to your air/fuel ratio or not. What you need to do is after putting on your new air filter, run it for a couple hundred miles. The pull your spark plugs and look at them. If they are a tan color, you are probably running too lean and thus too hot. If this is the case, you can either get a tuner of some type or a cheaper route would be to get yourself one of the XiED's that are designed for your bike. Here is the link for them
http://sales.nightrider.com/
so you can make an informed opinion/decision. The XiED's are a cheaper solution than a full blown tuner and a Dyna tune job. You'll find a lot of people on this forum that swear by them, as do I.

 

Thank for all information but I see that the bigest porblem is that each person say something different and finally I don't know nothing... :-(

 

Welcome to the forum Rufio,

It can be confusing, can't it. Basically everyone is saying the same thing, based on their understanding of your question.

When you install low restriction exhaust you allow the exhaust to flow better out of the engine. But, with a stock air cleaner assembly you still have a restriction on air IN flow. So, in stock engines you probably would not need a fuel tuner/module.
Now, if you install a hi flow air cleaner assembly you now have lowered the restriction on air in AND exhaust out. The causes a lean condition in an already lean running engine. Now you need a fuel tuner/module to add fuel to counteract your modifications.

As tunaman said, if you are just changing the ELEMENT in the stock air cleaner assembly you probably are still okay and don't need a tuner/module.

If it were me, and I was only changing the air filter ELEMENT I would do what DOMAPOI suggested. That would tell me whether I need some type of fuel tuner/module.

I hope that helps clear it up a bit for you.

 

Halo Duecedog. Every information is valuable. Thanks a lot. We see other opinions, I hope that will be more, and than I could take together all for one reasonable part...

 

Hello,

I am going to agree with most, that you need to reprogram the computer. Since the stock programing is set to be a little lean from stock, since you have pipes added, you are now even leaner. Well by changing the filter from the stock filter to our HD-1499, you will become even leaner still. Even if it is not enough of a change to damage the engine, it is always a good idea to have the computer adjusted with you upgrade the exhaust and air filter or air cleaner together.

However the only 100% way and the most safe way to know for sure if you need a tune it to have the air fuel mixture checked by a shop with a Dyno.

Hope this helps