velocity stacks ? - TwoWheelForum: Motorcycle and Sportbike forums
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 07-15-2007, 05:37 PM Thread Starter
Squidly
 
Join Date: Jul 2006
Posts: 31
velocity stacks ?

Has anybody tryed these and if so are the worth the doe???Also how do they work?I have a 2006 gsxr 1000. Made by factory pro!!

Last edited by hulsey; 07-15-2007 at 05:39 PM.
hulsey is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 07-15-2007, 06:37 PM
Factory Racer
 
gixxer1333's Avatar
 
Join Date: Dec 2005
Location: Fall River
Posts: 1,287
Send a message via AIM to gixxer1333
I have a set of Yoshi's on my 01 Gixxer 1000+. They are great and come in 2 configurations. One configuration is the taller then stock ones that will fit with your stock air box and the other you have to totally remove the airbox and just use rely on the stacks for intake. I went with the first. Although clearance is tight, they do allow air to be forced very fast. Dont forget, your gas milage will be sacrificed.

"Bikes don't kill bikers...cars do"and your ass looks fine
-If you can't do 200 or better, dont bother me
-(a.k.a. HAMMER)
-pres. of THE KRU
gixxer1333 is offline  
post #3 of 14 (permalink) Old 07-15-2007, 06:40 PM
Contest Winner
'07 Rally Veteran
November 2007 BOTM Winner!
 
Join Date: Apr 2005
Location: Cbus, OH, and about 100,000 posts behind the post whore
Posts: 7,649
Send a message via AIM to drewpy
how much of a mpg drop?



"It takes alot of anything to make my bike to something"
2001 RC51
drewpy is offline  
Sponsored Links
Advertisement
 
post #4 of 14 (permalink) Old 07-15-2007, 06:45 PM
Factory Racer
 
gixxer1333's Avatar
 
Join Date: Dec 2005
Location: Fall River
Posts: 1,287
Send a message via AIM to gixxer1333
I saw at least on my bike a 7 mile loss.

"Bikes don't kill bikers...cars do"and your ass looks fine
-If you can't do 200 or better, dont bother me
-(a.k.a. HAMMER)
-pres. of THE KRU
gixxer1333 is offline  
post #5 of 14 (permalink) Old 07-15-2007, 06:51 PM
Contest Winner
'07 Rally Veteran
November 2007 BOTM Winner!
 
Join Date: Apr 2005
Location: Cbus, OH, and about 100,000 posts behind the post whore
Posts: 7,649
Send a message via AIM to drewpy
damn



"It takes alot of anything to make my bike to something"
2001 RC51
drewpy is offline  
post #6 of 14 (permalink) Old 07-15-2007, 06:56 PM
Factory Racer
 
gixxer1333's Avatar
 
Join Date: Dec 2005
Location: Fall River
Posts: 1,287
Send a message via AIM to gixxer1333
My bike is not stock by far so it may be less if it is. One thing I know is the kick in the pants power you get when you are in second and up. 4k and the power will alys be there.

"Bikes don't kill bikers...cars do"and your ass looks fine
-If you can't do 200 or better, dont bother me
-(a.k.a. HAMMER)
-pres. of THE KRU
gixxer1333 is offline  
post #7 of 14 (permalink) Old 07-15-2007, 06:58 PM
Contest Winner
'07 Rally Veteran
November 2007 BOTM Winner!
 
Join Date: Apr 2005
Location: Cbus, OH, and about 100,000 posts behind the post whore
Posts: 7,649
Send a message via AIM to drewpy
so is it work the dough? i was thinking abour adding a set shortly



"It takes alot of anything to make my bike to something"
2001 RC51
drewpy is offline  
post #8 of 14 (permalink) Old 07-15-2007, 07:09 PM
Factory Racer
 
gixxer1333's Avatar
 
Join Date: Dec 2005
Location: Fall River
Posts: 1,287
Send a message via AIM to gixxer1333
If you are into speed, YES. If you like extra power, YES.

"Bikes don't kill bikers...cars do"and your ass looks fine
-If you can't do 200 or better, dont bother me
-(a.k.a. HAMMER)
-pres. of THE KRU
gixxer1333 is offline  
post #9 of 14 (permalink) Old 07-15-2007, 07:15 PM
Contest Winner
'07 Rally Veteran
November 2007 BOTM Winner!
 
Join Date: Apr 2005
Location: Cbus, OH, and about 100,000 posts behind the post whore
Posts: 7,649
Send a message via AIM to drewpy
thinking about changing the timing, adding stacks, and upgrade in the shifting department



"It takes alot of anything to make my bike to something"
2001 RC51
drewpy is offline  
post #10 of 14 (permalink) Old 07-15-2007, 07:41 PM
Banned
 
PlayfulGod's Avatar
 
Join Date: May 2007
Location: Dalton, Georgia
Posts: 9,569
Send a message via AIM to PlayfulGod Send a message via MSN to PlayfulGod
stacks alone wont make all that much power. They will channel the air intake better resulting in a better throttle response. And shouldnt affect fuel economy, n if so should improve it because of better efficiency. The poor gas mileage is most likey from another tweak and/or hammering it more because of the improved throttle response.
PlayfulGod is offline  
post #11 of 14 (permalink) Old 07-15-2007, 11:31 PM
First 1000 Member
 
No Worries's Avatar
 
Join Date: Aug 2004
Location: Denver, CO
Posts: 2,394
Velocity stacks aren't new, they were used on fuel-injected drag cars in the late 60's. The power was in a very narrow RPM band that could be set by the length of the stacks. But they were mechanical injectors, not computer controlled. The new R1 has variable-length stacks. How do they work?
No Worries is offline  
post #12 of 14 (permalink) Old 07-16-2007, 03:44 PM
Factory Racer
 
gixxer1333's Avatar
 
Join Date: Dec 2005
Location: Fall River
Posts: 1,287
Send a message via AIM to gixxer1333
I think there is a need to say that with more air comes more fuel and vise versa. When this happens there is a loss in milage. The computer thinks on its own saying I have to feed more gas to = or surpass the air flow coming in.

"Bikes don't kill bikers...cars do"and your ass looks fine
-If you can't do 200 or better, dont bother me
-(a.k.a. HAMMER)
-pres. of THE KRU
gixxer1333 is offline  
post #13 of 14 (permalink) Old 07-17-2007, 10:34 AM
Newbie
 
DCMoney's Avatar
 
Join Date: Mar 2007
Posts: 6
Quote:
Originally Posted by No Worries View Post
Velocity stacks aren't new, they were used on fuel-injected drag cars in the late 60's. The power was in a very narrow RPM band that could be set by the length of the stacks. But they were mechanical injectors, not computer controlled. The new R1 has variable-length stacks. How do they work?

Velocity stacks go back even further than that. Planes during WWII were using them along with superchargers, so this is nothing new technically its 60+ year old technology. But a 06 1k your going to have to get a custom map if you want the fullest power potential.
DCMoney is offline  
post #14 of 14 (permalink) Old 07-17-2007, 12:17 PM
Factory Racer
 
Back _Marker's Avatar
 
Join Date: Jan 2006
Location: Tyrone, GA
Posts: 2,017
i ran stacks on my carburetored superbike (1990). back then, airboxes were not engineered. today's bikes have pressurized airboxes (ram air). true stacks don't use airboxes. open stacks have no filtration, plan on early engine rebuilds.

for street use, i don't think it's worth it. but it looks good for showbikes.

-a|ex
Back _Marker is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TwoWheelForum: Motorcycle and Sportbike forums 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
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Pingbacks are On
Refbacks are On

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