Buffeting issue. - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

User Tag List

 
LinkBack Thread Tools
post #1 of 14 Old 06-04-2013, 10:08 PM Thread Starter
 
Join Date: 03-27-2013
Location: Dallas, Texas
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 7
 
Buffeting issue.

I noticed today on the way home from work that my 2002 954RR had some severe buffeting at certain speeds....will not go into detail because forum does not want to promote illegal things which is understandable and I respect it...just say...WELL above the speed limit....near top speed...I had some bad buffeting.

Is this common in the 954's or is it something that can be adjusted out or diminshed with mods?


Edit:

BTW...it has stock mirrors and a double bubble windscreen.

Last edited by Monolith; 06-04-2013 at 10:33 PM.
Monolith is offline  
Sponsored Links
Advertisement
 
post #2 of 14 Old 06-05-2013, 1:37 AM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 229
                     
Re: Buffeting issue.

Quote:
Originally Posted by Monolith View Post
I noticed today on the way home from work that my 2002 954RR had some severe buffeting at certain speeds....will not go into detail because forum does not want to promote illegal things which is understandable and I respect it...just say...WELL above the speed limit....near top speed...I had some bad buffeting.

Is this common in the 954's or is it something that can be adjusted out or diminshed with mods?


Edit:

BTW...it has stock mirrors and a double bubble windscreen.

What exactly do you mean by "buffeting"?
Was it widy or gusty perhaps?

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
post #3 of 14 Old 06-05-2013, 5:22 AM
 
Join Date: 08-25-2008
Location: La Linea, Spain
Posts: 791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 34
                     
Re: Buffeting issue.

Te double bubble screen could be your issue if too high. Or if you aren't tucked in tight enough. Or if there was a noticeable crosswind. Or it could be normal depending on how bad it was and how accustomed you are to doubling the speed limit. It's really wry fast and the aerodynamics become quite important, air is really thick at these speeds.
amorti is offline  
Sponsored Links
Advertisement
 
post #4 of 14 Old 06-05-2013, 6:26 AM
 
Join Date: 04-03-2012
Location: Chasing range rovers.
Posts: 3,890
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 113
                     
Re: Buffeting issue.

Was it the bike, or yourself that was being buffeted?

At high speed there's a huge pressure difference between the outside of the bike, and the area just behind the screen. As you had your head in that area, that's probably what was buffeting you around.

If the bike isn't braking properly, you don't start by rebuilding the engine.
Sky91 is offline  
post #5 of 14 Old 06-05-2013, 10:36 AM Thread Starter
 
Join Date: 03-27-2013
Location: Dallas, Texas
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 7
 
Re: Buffeting issue.

My head was not buffeting...my shoulders did a little...it was mostly the front of the bike. My left mirror folded in first...then the side to side buffeting started.

I could feel the difference in pressure you spoke of...I was tucked in the best I could but my shoulders were out a little...I was slid back in the seat hugging the bike but being I'm 6'3" tall and 250 even the double bubble cant cover it all lol.

It was my first time going that fast...and feeling that made me wonder how those guys at Isle of Man TT do it..cause to be honest...it scared the **** out of me.
Monolith is offline  
post #6 of 14 Old 06-05-2013, 10:50 AM
 
Join Date: 04-23-2009
Location: Gahanna, Ohio
Age: 51
Posts: 1,042
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Reputation Power: 37
                     
Re: Buffeting issue.

I'm 6'5" 265lbs and have a double bubble and it's hard to get completely out of the stream. I hit 165 pretty regularly at Mid-Ohio and the wind is intense, but nothing unusual, so it could just be that you are not used to it.
It's a lot of fun slowing down from those speeds for turn 7.
Attached Thumbnails
MidOhio trackmap.jpg‎  
Lobsta13 is offline  
post #7 of 14 Old 06-05-2013, 1:54 PM Thread Starter
 
Join Date: 03-27-2013
Location: Dallas, Texas
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 7
 
Re: Buffeting issue.

Yea..I bet turn 7 has a pretty high pucker factor....

My main concern was maybe the suspension..I havent yet took it in to get adjusted to me and my sag...was wondering if that could contribute.
Monolith is offline  
post #8 of 14 Old 06-05-2013, 3:02 PM
 
Join Date: 04-23-2009
Location: Gahanna, Ohio
Age: 51
Posts: 1,042
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Reputation Power: 37
                     
Re: Buffeting issue.

Quote:
Originally Posted by Monolith View Post
Yea..I bet turn 7 has a pretty high pucker factor....

My main concern was maybe the suspension..I havent yet took it in to get adjusted to me and my sag...was wondering if that could contribute.
So hard to say exactly what could cause it or what you were feeling. Suspension can cause movement, but so can the road, crosswinds, traffic, etc especially at high speeds.
If you're not used to going that fast, the sensation can certainly overload your senses and make you "feel" a lot more instability than there may actually be and it is surprising how fierce the wind is when upwards of 130. The first time I came close to maxing mine out, it felt like it was really light, almost like it was floating, but that was just after I had gotten my 954 and had never gone that fast. Once I got accustomed to it, I've never felt that again.
Turn 7 is pretty tight coming off the back straight. The kink before it is wide open so it doesn't slow you down. You go from 165 to like 60. It's a great overtaking spot on the brakes. Mid Ohio rocks!
Lobsta13 is offline  
post #9 of 14 Old 06-05-2013, 3:59 PM
 
Join Date: 09-09-2007
Location: Caithness, Scotland
Posts: 21,175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 291
                     
Send a message via MSN to setanta
Re: Buffeting issue.

Dam thought it was an invite to a buffet




Irish's Blog Page
Hate this Skin
Assalam-o-Alaikum
setanta is offline  
post #10 of 14 Old 06-05-2013, 5:37 PM
 
Join Date: 08-25-2008
Location: La Linea, Spain
Posts: 791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 34
                     
Re: Buffeting issue.

Quote:
Originally Posted by Monolith View Post
My left mirror folded in first...then the side to side buffeting started.
The aero drag for either side would have suddenly been noticeably different. Mirrors are like sails, it's why racing bikes don't have them. It would drag one way, so you correct, and so on. As that happens any notchiness at all in your steering bearings would come into effect.
amorti is offline  
post #11 of 14 Old 06-05-2013, 5:38 PM
 
Join Date: 08-25-2008
Location: La Linea, Spain
Posts: 791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 34
                     
Re: Buffeting issue.

If you find yourself in a strong side wind, stick your knee out in the wind side, sounds stupid but it helps balance the bike.
amorti is offline  
post #12 of 14 Old 06-05-2013, 11:02 PM Thread Starter
 
Join Date: 03-27-2013
Location: Dallas, Texas
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 7
 
Re: Buffeting issue.

Quote:
Originally Posted by amorti View Post
The aero drag for either side would have suddenly been noticeably different. Mirrors are like sails, it's why racing bikes don't have them. It would drag one way, so you correct, and so on. As that happens any notchiness at all in your steering bearings would come into effect.
So the reason it was buffeting so bad was because one mirror was extended and the other folded in due to the wind? That really makes sense...need to replace those mirrors..the left one will not stay tightened...

Appreciate the info.
Monolith is offline  
post #13 of 14 Old 06-06-2013, 2:32 AM
 
Join Date: 03-24-2011
Location: Waterlooville UK
Age: 47
Posts: 3,033
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Reputation Power: 77
                     
Re: Buffeting issue.

If your tall (I'm 6/2) I find my slight bubble screen is worse than the stock screen at high speed, directs the air at my head rather than shoulders and head intensifying the pressure really pushing my helmet back. Have now gone back to stock screen and its better.. If you get a full bubble would prob fix issue but they look horrid! Have you seen the screens on tt bikes they are huge to stop this!



Bike build Vblog latest Update
http://youtu.be/2ISgxtQXs9o

My 900RR Winter Project
https://www.fireblades.org/forums/hon...er-revamp.html
Lambchops is offline  
post #14 of 14 Old 06-06-2013, 6:03 AM
 
Join Date: 06-01-2011
Location: Quartz Hill, Ca
Posts: 3,226
Mentioned: 2 Post(s)
Tagged: 2 Thread(s)
Quoted: 159 Post(s)
Reputation Power: 122
                     
Garage
Re: Buffeting issue.

Quote:
Originally Posted by amorti View Post
If you find yourself in a strong side wind, stick your knee out in the wind side, sounds stupid but it helps balance the bike.
I live in a very windy area, do this all the time.
fj1200rj is offline  
Reply

  Lower Navigation
Go Back   Honda Motorcycles - FireBlades.org > Honda Motorcycle Models > Honda FireBlade

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Motorcycles - FireBlades.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
A valid e-mail address is REQUIRED. You will not have access to any site features until you activate your account using the activation e-mail that is sent to this address.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Bar end Issue TprRC51 Honda RC51 5 01-05-2013 11:27 PM
1 issue fixed, major issue happened Dudirtt Honda FireBlade 6 04-06-2012 11:35 AM
RC 51 FI Issue SMC1030 Honda RC51 5 06-09-2011 10:00 AM
954 issue Josh5508 Honda FireBlade 1 02-07-2007 11:42 AM
Buffeting an DoubleBubbles? MikeG Honda FireBlade 10 07-15-2004 2:22 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome