JSmooth
Expert Class
Posts: 169
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posted January 29, 2011 09:02 AM
Velocity Stacks
Mid Range Race vs Top End Race?
I may get slapped for this one but I here we go. I ride mostly street and haven't hit the track yet but I am inquiring as to which would better and why? I here a lot of people talking about the Velocity Stacks but never knew if it was a must have part. If anyone can assist me on this or if there is a thread already out there just point me in the right direction.
  
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Shane661
Needs a life
Posts: 11494
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posted January 29, 2011 09:53 AM
The stock ones are good, and unless you are hunting for 1-2 hp (at a big cost), I would not bother.
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DogoZX
Expert Class
Posts: 348
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posted January 29, 2011 11:10 AM
Anyone tried mixing stack lengths on a zx14?
I have a set of 15mm's and 25mm's and am thinking about experimenting.
Will I just be wasting time and $$$?
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JSmooth
Expert Class
Posts: 169
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posted January 29, 2011 11:13 AM
Shane: I am just looking at getting the most out of my bike so every little bit would help, whether it be on the street or the track I need to be prepared.
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JSmooth
Expert Class
Posts: 169
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posted January 29, 2011 11:26 AM
As far as mixing the Stacks i wouldn't know about that but i'm sure Shane or someone else on here would know i'm sure. I have been reading most of Shane's build post and using his post as a reference for performance parts as well as researching what is posted on here.
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RedRipper14
Parking Attendant
Grip it, Twist it, Lean it....
Posts: 11
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posted January 29, 2011 11:52 AM
I've heard its a big deal alomg wit flies on the 06 07. But not on later models...
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Shane661
Needs a life
Posts: 11494
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posted January 29, 2011 11:59 AM
quote:
Shane: I am just looking at getting the most out of my bike so every little bit would help, whether it be on the street or the track I need to be prepared.
Sometimes less is more. The aftermarket stacks are not tapered and the bellmouth portion does not appear to have as smooth of a radius, imo. They raised my torque peak by 2-300 rpm., but it is my "gut" feeling that they also hurt my 330' times.
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DogoZX
Expert Class
Posts: 348
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posted January 29, 2011 12:15 PM
quote:
Sometimes less is more. The aftermarket stacks are not tapered and the bellmouth portion does not appear to have as smooth of a radius, imo. They raised my torque peak by 2-300 rpm., but it is my "gut" feeling that they also hurt my 330' times.
That was with the 15's?
I ran the 25's on my '06, and it was my "butt" feeling that peak torque was 2-300 rpms lower.
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Shane661
Needs a life
Posts: 11494
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posted January 29, 2011 01:09 PM
quote:
quote:
Sometimes less is more. The aftermarket stacks are not tapered and the bellmouth portion does not appear to have as smooth of a radius, imo. They raised my torque peak by 2-300 rpm., but it is my "gut" feeling that they also hurt my 330' times.
That was with the 15's?
I ran the 25's on my '06, and it was my "butt" feeling that peak torque was 2-300 rpms lower.
Yes, I have the short stacks. I saw the change in the torque peak on the dyno.
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DogoZX
Expert Class
Posts: 348
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posted January 29, 2011 01:17 PM
quote:
I saw the change in the torque peak on the dyno.
Since I've already got the stacks, dyno time cost the cost I was speaking of. I still kick myself in the a$$ for not picking up the $1500 dyno that popped up on my local CL a few years ago. Doh!
That's why I'm wondering if anyone has tried mixing stacks on a zx14?
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JSmooth
Expert Class
Posts: 169
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posted February 02, 2011 06:08 PM
Shane would you say that you can feel the difference if riding hard on the street or just on the track? Also the would I benefit more from the mid stacks or top end stacks more? I want to do the LSR and try to get my bike up in the 200mph club and then hit the track.
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Shane661
Needs a life
Posts: 11494
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posted February 03, 2011 07:24 AM
 Edited By: Shane661 on 3 Feb 2011 15:25
I guess what I am saying is that I couldn't really feel much of a difference....but the bike seemed a little more likely to bog when coming off the clutch at the dragstrip. If you are really sold on them, I would get the short ones for LSR.
Depending on your shift points, you could make 1-2 hp more at your shift recovery rpm. However, for overall performance I wouldn't spend my money on Velocity Stacks until I had exhausted many other avenues such as data logging and tuning, rider technique...and most of all: practice.
Shane
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JSmooth
Expert Class
Posts: 169
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posted February 03, 2011 08:02 AM
Thanks for the advice Shane.
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Audioboyz
Expert Class
Posts: 265
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posted February 06, 2011 02:02 PM
I'm getting 25mm Factory Pro midrange stacks from Schintz Racing along with a race filter,
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2009 Monster ZX-14
Brocks Alienhead,PCV, flys out,LSL Riser kit,-1 front sprocket,43 Vortex rear sprocket,K&N Air Filter, Zero Gravity tall smoked screen,block off plates,175HP 104 torque
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eklipse636
Needs a life
ZX-14
Posts: 6046
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posted February 06, 2011 02:13 PM
audioboyz, why would you buy velocity stacks while running slip ons?
Kinda pointless.
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Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32
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dakota9498
Pro
Posts: 1181
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posted February 06, 2011 03:04 PM
+1, trying for another 1hp, when there are several that could be had with a full exhaust. Waste of money.
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2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain
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Audioboyz
Expert Class
Posts: 265
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posted February 06, 2011 07:27 PM
Edited By: Audioboyz on 7 Feb 2011 03:31
Oh I'm buying full exhaust not sure which one.Thanx think I'll cancel the stacks.Can someone recommend an exhaust for the street and some strip use,
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2009 Monster ZX-14
Brocks Alienhead,PCV, flys out,LSL Riser kit,-1 front sprocket,43 Vortex rear sprocket,K&N Air Filter, Zero Gravity tall smoked screen,block off plates,175HP 104 torque
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CraigChrist
Pro
BAWLS
Posts: 1043
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posted February 06, 2011 07:49 PM
any of the brocks, or a muzzys M-14
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60ft-------1.42
1/8th------5.97
mph-------119
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eklipse636
Needs a life
ZX-14
Posts: 6046
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posted February 07, 2011 03:42 AM
Anything but slip ons. If you stick with the bigger name brands you should be fine.
Brocks
Muzzy
Tsukigi
Area P
Etc
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Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
8.89 mph 151.32
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Romans
Expert Class
Posts: 294
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posted April 10, 2011 03:02 AM
Just installed 15MM Race stacks.
First, I made four 2Nd gear roll on runs to red line in the same location.
Installed short stacks and made the same four runs from second gear again. two hours later.
Bike stands up much sooner before needing a shift.
If I lost any power down low I can not feel it.
I'm pleased with my purchase.
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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joel787
Zone Head
Posts: 590
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posted April 11, 2011 01:14 PM
so i went to the dyno with a friend of mine and they where talking about them, the guy was telling him that they dont make them for his honda but they can be shaved up with a dremel to make them bigger and he said he does them for like $50 they could make up to 3-4 hp at the top just making ur redline go higher. i think it sounds better than $250 for a legit set, but would it be safe?
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http://www.proe-pr.com/cnc.html
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Romans
Expert Class
Posts: 294
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posted April 11, 2011 03:42 PM
Edited By: Romans on 11 Apr 2011 23:47
quote:
think it sounds better than $250 for a legit set, but would it be safe?
More of a power Re locater. Safe, sure, unless over bore and pokes a hole.
Does he bore out the throttle bodies as well ? 3 to 4 sounds like a big gain on a 1000.
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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joel787
Zone Head
Posts: 590
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posted April 11, 2011 04:48 PM
No throttle mod, just boring the rubber factory ones... He claims that with the "stacks mod" is the new thing to do on stock motors..
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http://www.proe-pr.com/cnc.html
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Romans
Expert Class
Posts: 294
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posted April 11, 2011 04:53 PM
What kind of surface do you get on the inside when you Bore out rubber ?
Just thinking. The ZX14 stacks are held in place with a rubber collar. If you Bored those out the seal would be shit as the collar would be holding on to almost nothing.
The New V-Stacks have a amazing seal. Sweet 4 sure. Turbo guys must love it.
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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Rook
Pro
Posts: 1125
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posted January 09, 2012 04:57 PM
So, Dogo or anyone....any luck with combining 25mm and 15mm.
Here's a pic of FP stacks with high and low combo. Obviously not a 14. By the shape of the air filter, I'd say that was a GSXR.
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