Airbox Mods

[firechickenXB9R]

Man I got your cold air!!!

[up]

 

[Amrcnmade]

The fan can suck the air out of the air box and blow it on the motor all it wants if thats what it actually does. It doesnt matter. that will only pull cool dense into the air box

 

[GrimesXB]

So is there any concern of running "dangerously" lean by simply doing the Open Air Box Conversion with the K&N Filter, stock ecm, and stock exhaust? Knowing as stated above they come lean from the factory.

 

[Amrcnmade]

Opening the airbox wont effect how lean the motor runs. Think about a carburated car motor. You pull the air filter off to adjust the carb while the motor is running. Does the car suddenly start leaning out and pinging from pre ignition. Nope. Just because there is more air available does not mean it will get forced into the motor. Motors run on vacuum. They suck their air in as they run. But opening the airbox for cooler denser air will not cause it to lean out. Only let the extra oxygen produce more power

 

[Stevenc150]

Airbox Mod alone might be alright.

But doing Exhaust AND Airbox mod would lean it out. Modded exhaust has less backpressure and has the engine wanting more air. You give it more air with an airbox mod and voila, the air/fuel ratio goes leaner.

 

[03Firebolt9R]

I have been aprehensive about doing this mod simply because I did not want to cut up my airbox. But I got an extra one and went ahead and swiss cheesed one of them. Holy crap...very pleased with my decision. Really runs good like this. Only complaint that I have is that I dont really care for the sound. But I think I will get used to it. Very highly suggest it.

 

[patrickXB]

has anyone else experienced some excessive backfiring on decel with the airbox mods?

 

[dave_xb12r]

Maybe you just didn't hear the backfire before with all of the airbox crap in the way.

Backfire=running rich right? Time for a tune.

 

[yorkshirelad]

I just did the DIY airbox delete.Dont know why anyone would want to pay good money for a kit to do this.I cut my original box up and fitted it with two stainless threaded bars I had laying around.
Total cost-a big fat zero.
P.S I am new to this site and forums, could someone please tell me how to start a new thread.

 

[dave_xb12r]

Nice mod! [up] Go into the topic you want to post in and scroll down to the bottom. There should be a new thread box down there

 

[yorkshirelad]

Thanks for that I have a lot of questions to ask

 

[Stevenc150]

Nice Paint Scheme Yorkshire! [up] Welcome to the Forum. Might consider starting your own intro thread with some more info on that great looking bike.

 

[ADAMLEE]

Why did you leave the actuator wiring attached to the tubing? I removed mine back by the ECM and got rid of that wire. Seemed like it was just taking up space and lloking ugly.

Overall i give your bike 9.5 out of 10! Bike looks great!

 

[goatsxb9s]

Armcnmade,carbs use vacuum venturi's to meter the amount of fuel; fuel injection uses fuel maps..not the best comparison.

 

[only1reds]

Awesome looking bike

 

[yorkshirelad]

Thanks ADAMLEE I didnt look into removing the actuater cable but I will be doing now.
I am new to this site so as soon as I get chance I will post more pics and spec.
Thanks all.

 

[oxygen151]

I could not find where the actuator wire went into the ecm. I was thinking it was hard wired? Can anyone explain how you take this off. Mine is just dangling and I want it gone.

 

[indy84]

hey jusy did the airbox mod, the first thing you notice is the sound, its louder but its still good at low rpm, just when you open the throttle you can really hear it, definatly gained performance wise, highly recomended. Also have done the breather mod which made it smoother down low.

With both mods done on my 07 xb12r its a easy
roll-on wheel stander in first gear

 

[AdventureUly]

If you open up the air box, swiss cheese style, Do you also NEED to do the breather mod?

 

[Stevenc150]

Do you also NEED to do the breather mod?

It's not a Must but I can't think of a single reason Not to do it. It's simple, cheap, and effective - can't get much better than that.