speedyme
Expert Class
Posts: 224
|
posted September 12, 2010 04:13 PM
velocity stacks? do they help?
just wondering if its worth couple hundred dollars for the velocity stacks? does it give much more power without remapping? with stock exaust. . . thanks
____________
speedy
   
|
Compton
Zone Head
Posts: 969
|
posted September 12, 2010 04:34 PM
no
____________
b.w.
zx14, little longer, little louder, little lower.
08 Busa, just a little longer and louder and lower than the 14
|
zxrider11
Novice Class
Posts: 81
|
posted September 12, 2010 05:55 PM
 Edited By: zxrider11 on 13 Sep 2010 01:56
From my research, changing your velocity stacks will give more power in some rpms at the cost of taking power away from other rpms.
Muzzy sells two different types of stacks - Mid Range for street use and Top End for drag race.
http://www.muzzys.com/ZX14/ZX14_velocity_stacks/index.html
____________
2008 ZX14 Atomic Silver
2012 KTM 690 Enduro R
|
Shane661
Needs a life
Posts: 11494
|
posted September 13, 2010 10:28 AM
Edited By: Shane661 on 13 Sep 2010 18:31
Most people will not notice the difference.
You are tuning the port, by varying it's length. The short stacks on my bike shifted the power up a little...perhaps 200 or 300 rpm difference in the torque peak. They can potentially reap benefits in an LSR application where you are searching for every .25 mph.
If you are trying to get the last 1-2 peak hp, it is worth a shot...but you will have to be willing to tune the bike accordingly, and perhaps do a little work on the stacks themselves.
Shane
|
bad ass 14
Expert Class
Posts: 257
|
posted September 13, 2010 06:32 PM
I got mine last year from Schnitz. I got the mid range stacks and thought they helped a little for the street.
____________
Bad ass 14
|
oilfieldtrash
Zone Head
Kawasaki enthusiast
Posts: 506
|
posted September 13, 2010 06:34 PM
Edited By: oilfieldtrash on 14 Sep 2010 02:35
Make your own with the cardboard from paper towel rolls. J/K I really don't know.
____________
'09 zx6r lime green bone stock
'07 white S.E. ZX-14 sold
|
Chaz
Novice Class
Posts: 46
|
posted September 13, 2010 07:16 PM
I just had them installed, along with everything else on my list of mods a few weeks ago.
A good friend of mine told me that the bike is a lot quicker, than when he rode it when it was stock.
Instant throttle response, with a lot more power.
(He picked it up for me at the shop)
I can't give any opinion of my own because I had back surgery last March, and I haven't ridden since then, and I'm gonna have another back surgery on the 24th of this month.
So it will put out of commission for a few months yet again! 
I do have a lot of volunteers wanting to keep the fuel new & fresh in my bike's tank.....
____________
2007 Plasma Blue ZX14, 1464 cc 2mm Bore X 2mm Stroke, OER Hi-Mounted Full Exhaust System, PC3, KN Air Filter, SpeedoHealer, Flies Out, FP Velocity Stacks, 0/+1, HotBodies Undertail, Lowered 1", ZG Dbl Bbl, ZX14 Chain Guard, Cox Racing Radiator Guard, HID Lights 6K-Lo / 8K Hi, Adj Side Stand, and a Stem mounted Valentine Radar Detector
|
Pretty Fast
Expert Class
Posts: 116
|
posted September 14, 2010 11:07 AM
I installed the short stacks, remapped bike and picked up 4 hp. I noticed the difference because the same individual I had always raced, I noticed that once I installed the stacks I pulled away sooner in the race then what I was before installing the stacks. The stacks definitely made a difference and if you have engine work, it'll make even more of a difference.
|
Ozonkiller
Expert Class
Posts: 350
|
posted September 14, 2010 06:39 PM
As measured on the dyno, they were good for 2-3 hp up top with the short stacks while losing a pony or two in the middle. The long stacks made 2-3 in the middle with no gains up top. I chose the short stacks as I only care about the top end in lsr.
Not a lot of bang for your buck, but if you're looking for every pony...
Tom
|
bad ass 14
Expert Class
Posts: 257
|
posted September 14, 2010 06:50 PM
One thing I must say is the velocity stacks are much better pieces then those rubber stock pieces of crap. All nice and machined like, so pretty. Aren't the stock stacks tall anyway? Would there really be a difference between the tall velocity stacks and the stockers? I just dunno.
____________
Bad ass 14
|
Bigbore4
Zone Head
Posts: 806
|
posted September 14, 2010 07:33 PM
"Not a lot of bang for your buck, but if you're looking for every pony"
How do you figure that? What's a bigbore kit cost?
What about headwork and cams?
If you can get a horse for a hundred bucks you got a good deal!
|
bigwil
Expert Class
06 zx 14 turbo stage 3
Posts: 423
|
posted September 14, 2010 07:37 PM
big cc velosity stacks
____________
bigwil// going fast aint easy so turbo it
|
Shane661
Needs a life
Posts: 11494
|
posted September 15, 2010 12:15 PM
The OEM velocity stacks are a tapered design. The aftermarket ones are not.
Food for thought....
|
BobC
Pro
Posts: 1736
|
posted September 16, 2010 12:01 AM
Edited By: BobC on 16 Sep 2010 08:02
quote:
big cc velosity stacks
http://www.bigccracing.com/shop/product.asp?idproduct=311&source=thumb
____________
Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
|
bad ass 14
Expert Class
Posts: 257
|
posted September 16, 2010 05:38 AM
Yup, they're sweet lookin.
____________
Bad ass 14
|
BobC
Pro
Posts: 1736
|
posted September 16, 2010 05:57 AM
Edited By: BobC on 16 Sep 2010 13:58
They are nice kit. This image might be of interest to anyone using forced induction. It shows an improved seal between the plenum chamber, velocity stacks and the throttle bodies.
____________
Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
|
Swiftkart
Expert Class
Posts: 349
|
posted September 16, 2010 06:39 AM
They don't look like they match the throttle body openings very well, a lot of mismatch, the Factory Pro stacks match, fit and seal very well.
____________
2006 ZX14, Brock CT-Meg, PC, ignition module, E85, 214 lbs suited, 8.96@152.32 1.46 60'
|
Bently
Needs a life
2012 14r In Blue and no Mods!
Posts: 5428
|
posted September 16, 2010 08:29 AM
So you guys that say they look much better, do you ride around with your tanks up and covers pulled off so people can see them?LOL
|
Shane661
Needs a life
Posts: 11494
|
posted September 16, 2010 08:35 AM
Edited By: Shane661 on 16 Sep 2010 16:42
It's not about how the Big CC "look"...except that why change them if they don't line up well and also create more turbulence than the oem? That design is ok for a forced induction setup where you are not worried about turbulence as much...but horrible for an NA application, imo.
The Factory Pro parts also seal extremely well to the box...but the inner sleeve is one piece, creating less turbulence and less potential for mismatch to the TB's.
Anyway, just my observations...
Shane
|
Swiftkart
Expert Class
Posts: 349
|
posted September 16, 2010 05:33 PM
quote:
It's not about how the Big CC "look"...except that why change them if they don't line up well and also create more turbulence than the oem? That design is ok for a forced induction setup where you are not worried about turbulence as much...but horrible for an NA application, imo.
The Factory Pro parts also seal extremely well to the box...but the inner sleeve is one piece, creating less turbulence and less potential for mismatch to the TB's.
Anyway, just my observations...
Shane
+1
____________
2006 ZX14, Brock CT-Meg, PC, ignition module, E85, 214 lbs suited, 8.96@152.32 1.46 60'
|
Lou_ZX12R
Expert Class
One Day at a Time
Posts: 196
|
posted September 15, 2013 10:34 AM
I'm confused. without worrying about how good they look, would this be a decent mod for the street on a 14r? I have yosi dual exhaust and the ECU flashed from Guhl. Is this worth doing or not from a performance stand point. I'm not concerned about the couple of hundred dollars it costs? If I can pickup 1~2hp more without messing up the idle or smoothness of the bike I'd be happy.
Lou
____________
2000 ZX12R 40shot
2012 ZX14R
2009 Concours 14
|
Shane661
Needs a life
Posts: 11494
|
posted September 15, 2013 10:48 AM
quote:
I'm confused. without worrying about how good they look, would this be a decent mod for the street on a 14r? I have yosi dual exhaust and the ECU flashed from Guhl. Is this worth doing or not from a performance stand point. I'm not concerned about the couple of hundred dollars it costs? If I can pickup 1~2hp more without messing up the idle or smoothness of the bike I'd be happy.
Lou
Not worth it in your case, imo. If you want to do something on the 14R, just replace the two longer stacks with Gen 1 parts. That is what I did on my 212+ mph bike.
But for street, imo, don't bother.
Shane
|
zx12mark
Pro
Posts: 1654
|
posted September 15, 2013 08:28 PM
shane`s got it going and going fast
|
riaansh
Expert Class
Posts: 195
|
posted September 17, 2013 09:39 AM
quote:
quote:
I'm confused. without worrying about how good they look, would this be a decent mod for the street on a 14r? I have yosi dual exhaust and the ECU flashed from Guhl. Is this worth doing or not from a performance stand point. I'm not concerned about the couple of hundred dollars it costs? If I can pickup 1~2hp more without messing up the idle or smoothness of the bike I'd be happy.
Lou
Not worth it in your case, imo. If you want to do something on the 14R, just replace the two longer stacks with Gen 1 parts. That is what I did on my 212+ mph bike.
But for street, imo, don't bother.
Shane
Shane how does the Gen 1 stacks differ from the 2012 14r. What gains for top end can you expect
|
Shane661
Needs a life
Posts: 11494
|
posted September 17, 2013 02:25 PM
quote:
quote:
quote:
I'm confused. without worrying about how good they look, would this be a decent mod for the street on a 14r? I have yosi dual exhaust and the ECU flashed from Guhl. Is this worth doing or not from a performance stand point. I'm not concerned about the couple of hundred dollars it costs? If I can pickup 1~2hp more without messing up the idle or smoothness of the bike I'd be happy.
Lou
Not worth it in your case, imo. If you want to do something on the 14R, just replace the two longer stacks with Gen 1 parts. That is what I did on my 212+ mph bike.
But for street, imo, don't bother.
Shane
Shane how does the Gen 1 stacks differ from the 2012 14r. What gains for top end can you expect
The 14R uses two Gen 1 type stacks, and two longer ones. Just replace the two longer ones with Gen 1 parts. It will raise your torque peak up a few hundred rpm, which maybe of benefit at your shift recovery rpm. Peak is hardly changed, if it all. Theoretically it may carry the power a little longer.
Shane
|
|
|
HOME
NEW TOPIC