Air Box Mod

[xpigrider]

Is it worth the time and money?  And what does it do?  Will you feel the difference in the seat?  I guy told me he would do it for $125.  Is it easy enough to do myself.  One more question will I need to get me pc maps redone?  

Thanking you all in advance

[Busashot]

$125???

Geez. Are we talking a small box mod or all out box renovation?
The small box mod will cost you less than 30 minutes of your time, a utility knife or dremel with a router bit. Easy Peasy

The difference can be about 3-5hp peak along with a BMC Race Filter. You will lose a tad on the bottom and may encounter a stumble between the 3000-4000 rpm range. That will necessitate adjusting the TPS sensor within factory spec and a little tuning with a PCII/III.

[Rocket Rider]

I did mine at the same time I had it mapped too.

[02booosa]

i'll do it for $100    just kidding man, like stated above it only takes about 30 minutes, do a search i am sure there is a how to somewhere

[Blue Streak]

Go here http://www.brockracing.com/Instructions/airboxmod.htm

[Phantom13]

Question:  Doesn't opening up the airbox like that kill the velocity of the ram air? Sure it might make more peak power on a static dyno where static air is used and more volume would be benificial...but in the real world I'd think that it would kill air velocity through the ram air.


Has anyone done REAL WORLD testing to see if indeed the airbox mod helps or hurts the bike up top after 150mph when the Ram air is working?

[nemsis]

It helps in the 1/4 I don't know about top speed and I don't care I'm geared for 170mph

[xpigrider]

I just had my bike mapped yesterday.  Will a air box mod help through the 1/4?  I would hate to do the mod and not really show any gain and have to have my system remapped. I am a working man you know!  LOL

Please some one give me a straight answer where I can put this horse to rest.

1 to 3 hps is not worth the time to me!

[Phantom13]

geared for 170mph!!! HOly shit, you must hate the highway.....90mph at 9,000 rpm...lol! Well, I'm sure it puckers your butthole down low under 150mph.

As for the airbox mod....theoretically...it should help the bike at lower speeds a lot. At low speeds it's about volume of air not velocity. The bike isn't getting any ram air boost at low speeds, so it's pointless to have the smaller opening to increase velocity. It would be more benificial to have a larger opening that will allow more volume of air.

Am I wrong?

[xpigrider]

Phantom 12 what are you talking about?  My 16/40 spocket set up.  2/3s of those mod I have listed were install on my bike with in the last seven days,  I get my bike back this even, if I don't like the set up I will get it changed.  Hey I am new at this and just learning (exharley rider)!  Be easy with me now. :

But I can take corrective cridision (you know what I mean)!  If my set up is wrong or I am headed in the wrong direction some tell me.

I don't cruise up around 150mph!  

State Farm and the Arkansas State Police would not like that at all!

[Phantom13]

I was talking to Nemsis......


READ ABOVE:

It helps in the 1/4 I don't know about top speed and I don't care I'm geared for 170mph

 

So you had a harley before this? Let me guess...this is your first real sportbike? You don't go over 150mph? Why did you get the Hayabusa? Hell, any new 600 can do over 150mph easy in stock trim. Wait Wait Wait....lemme guess.....BECAUSE IT'S A "HAYABUSA"!!!

Don't kill yourself .... Going from a 50rwhp 800lb harley to a 155rwhp 550lb Hayabusa is quite the quantum leap.

Sorry if I sound sorta rude, but I use to sell bikes and I'd get these middle aged men come in with either dirtbike or Harley experience and buy Hayabusa's........ 6 months later the bike is wrecked or they sold it because it was just a fad. Most of the time the power of the bike intimidates them thus keeping them from being able to learn on the bike.

This is why it's better to start smaller and work your way up. Not because we want you to go slower, but because it's easier to build up your skills on a smaller more forgiving machine that can brake quicker and manuver easier.  

Do yourself a favor and go to the drag strip and run your bike....work on learning how to launch better and cut quicker R/T's and E.T.'s. More experience and skill is FREE.....and will prove to be more benificial than more power through mods.

[xpigrider]

No Phanton12 this is not my first sports bike!  

And yes you do sound rude!  I came up with that conclusion long ago, but I just didn't say anything because it wasn't my place.  

For your information, I bought the harley (Road King Classic) so my wife would ride with me.  She didn't like it so I sold it and got me a BUSA.

Yes I crank it up sometimes when I am on a stretch, but for the most times I try to keep it under 80 mph to keep from getting a ticket.  I don't know about your house hold but I have other responsibilities, than paying speeding tickets and God forbid higher auto insurances.  

Yes I do have a need for speed but I don't cruise at 150mph or greater everytime I get on that bike just because it will do it!

Odds are already against you because you ride a bike, but I believe that if you ride ill responsible all the time it will catch up with you.

I love to ride fast and play loud music, but I care too much for my family to ride ill responsible all the time.  My family needs my income more than I need to ride 150 mphs or greater all the time.  

If you had of read my post about installing a toggle switch for my brake lights and tail lights you would have realized that I had a need for speed and possible evading the LAW at night if I got caught speeding.

By the way don't they need your help over there on the KAW'S wed site.

I haven't read one of your post where you were helpful.  It seems as though you are always filled with DRAMA!  

Someone needs to tell you, you don't know everytime.

Just because you use to sell bike doesn't make you and expert on everything concerning bike or some else' riding experience.

"GOD BLESS" and Peace Out!!!!

[Phantom13]

I agree with a lot of what you are saying...


I don't speed all the time either...as a matter of fact, I don't ever go more than 5-10mph over the limit on the street....or over 100mph on the highway...regardless if it's empty. I do however race a lot...and when the time and place is right...you'll catch me on the bad side of 150 more than the good side.

As for me never providing helpful information...well, most of what I do is provide helpful information! It's helpful to you guys when I clear up all the bullshit a lot of you guys spew out on these boards. Most of the people here have blinders on...they only see and hear and say what they WANT to see, hear, and say....not always the whole truth if you know what I mean. Just the manipulation of facts that makes a more pleasing "truth" for them.

Out of curiousity...what is your sportbike experience? Bikes? Mods? Milage traveled?

[THEMOTORHEAD]

PHANTOM
SHUT THE FUCK UP

[THEMOTORHEAD]

geared for 170mph!!! HOly shit, you must hate the highway.....90mph at 9,000 rpm...lol! Well, I'm sure it puckers your butthole down low under 150mph.

As for the airbox mod....theoretically...it should help the bike at lower speeds a lot. At low speeds it's about volume of air not velocity. The bike isn't getting any ram air boost at low speeds, so it's pointless to have the smaller opening to increase velocity. It would be more benificial to have a larger opening that will allow more volume of air.

Am I wrong?

YER STUPID
AT LOW SPEEDS ITS ALL ABOUT VELOCITY
THATS WHY CARS HAVE LONG RUNNERS FOR GOOD TORQUE AND ATOMIZATION OF THE FUEL
AT HIGH SPEED/RPM ITS ALL ABOUT VOLUME
YOU HAVE IT TOTALLY BACKWARDS
TRY SCHOOLIN THE 12 GUYS ABOUT THAT SHIT    

[00Busa]

PHANTOM
SHUT THE FUCK UP

I couldn't have said it better !

[nemsis]

geared for 170mph!!! HOly shit, you must hate the highway.....90mph at 9,000 rpm...lol! Well, I'm sure it puckers your butthole down low under 150mph.

As for the airbox mod....theoretically...it should help the bike at lower speeds a lot. At low speeds it's about volume of air not velocity. The bike isn't getting any ram air boost at low speeds, so it's pointless to have the smaller opening to increase velocity. It would be more benificial to have a larger opening that will allow more volume of air.

Am I wrong?

yes 170 mph, 16/43 will do that I mostly drag race my bike and I'm lucky to get 1/2 mile of open road here in Chicago but it is fun killing people in roll-ons

[Phantom13]

THEMOTORHEAD- I was under the impression that velocity was needed to create boost...not volume.

Explain to me how air volume builds pressure and air velocity doesn't.

[THEMOTORHEAD]

EXCESSIVE VOLUME IS WHAT YOU WANT
WITH VOLUME AND SPEED YOU AND UP WITH EQUAL PRESSURE INSIDE THE ENGINE AND OUTSIDE THE BODYWORK(RAMAIR)
if it were just fast air the engine would just consume the air faster than it is replenished
velocity is the airs speed
you can increase speed by just restricting its path(ventury effect)

[Phantom13]

Explain to me how a greater amount of slower moving air can pressurize an airbox more so than a lesser amount of air moving much faster at the same speed.

The way I see it is like this....

I can fill up a bucket faster by using the garden hose effect with my thumb than if I didn't. Correct? Not only that..but once the bucket is filled....I can still create more pressure in the bucket with my thumb over the hose than not.


It may be simple...but it's the same concept. More velocity less volume creates pressure and flows more water than more volume and less velocity. At least this is what my experiment lead me to believe.

[Randor-B]

The way I see it is like this....

I can fill up a bucket faster by using the garden hose effect with my thumb than if I didn't. Correct?

No, that is not correct. The bucket will fill at the same rate whether you have your thumb over it (ventury effect) or not. If you want to fill the bucket faster, you have to open the spicket more (more volume).

[THEMOTORHEAD]

Explain to me how a greater amount of slower moving air can pressurize an airbox more so than a lesser amount of air moving much faster at the same speed.

The way I see it is like this....

I can fill up a bucket faster by using the garden hose effect with my thumb than if I didn't. Correct? Not only that..but once the bucket is filled....I can still create more pressure in the bucket with my thumb over the hose than not.


It may be simple...but it's the same concept. More velocity less volume creates pressure and flows more water than more volume and less velocity. At least this is what my experiment lead me to believe.

YOU NEED TO READ SOME FUNDAMENTALS    

[WayneE]

I can fill up a bucket faster by using the garden hose effect with my thumb than if I didn't.

[bdorf94]

I can fill up a bucket faster by using the garden hose effect with my thumb than if I didn't.

Well, yeah, I mean.....it makes perfect sense......it'd be louder, and uh,.......the water would be faster, and...........

Oh, fuck it.....maybe you should have finished getting that high school diploma (not you, Wayne).

[Phantom13]

Dennis...what's with the childish namecalling? I asked a question in a civiled manner without any sort of negative conotations in a word of what I posted...yet you feel the need to call me an idiot? And you all have the nerve to call ME a "kid"?

I'm not trying to read up on this...I want YOU to explain to me how air velocity doesn't build pressure and how it's really air volume.


You say that more velocity will only end up being sucked in by the motor faster...correct? I disagree... air traveling into the airbox will flow MORE air that the motor can draw in if it's moving into the airbox faster before the motor can draw it in....hence pressurizing the airbox.


Just explain to me your view thuroughly and if you make sense...I'll drop it. Explain how less velocity and more volume is going to produce more pressure in the airbox than more velocity and less volume.