Fastest-14
Expert Class
Fastest -14
Posts: 354
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posted September 03, 2008 09:26 AM
Velocity Stacks
Has anyone besides personally done a thorough before and after test (dyno tuned and HP/TQ numbers) with the velocity stacks that are available for the 14. If so, what were the results and are the gains, if any worth the time and money?
  
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Fastest-14
Expert Class
Fastest -14
Posts: 354
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posted September 03, 2008 09:28 AM
Sorry but I meant to take the word "besides" out of the initial question.
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Superman T
Pro
Posts: 1831
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posted September 03, 2008 09:33 AM
fastest-14 there was a thread just on this topic, page 8 on this board. It's labeled Factory Pro Velocity Stacks Installed. This is in exclusive reference to the company but should give you a start.
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Fastest-14
Expert Class
Fastest -14
Posts: 354
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posted September 03, 2008 09:41 AM
Yeah Supa, I saw that a week or two ago but I was looking for more tried and tested info. Seemed like there was a lot of assumptions there with how much gain you would actually get from the stacks and no one had mentioned any results as far as dyno tuning the bike to the stacks or if you really need to.
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shane661
Needs a life
Posts: 11494
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posted September 03, 2008 09:48 AM
 Edited By: shane661 on 3 Sep 2008 10:48
Well, I am probably going to try them at the track on Friday. I'll report my results.
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madboost
Expert Class
Posts: 187
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posted September 03, 2008 10:58 AM
quote:
Well, I am probably going to try them at the track on Friday. I'll report my results.
please do, where you going mir?
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
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bawls
Needs a job
re-learning to ride
Posts: 2701
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posted September 03, 2008 10:59 AM
Please do so. I could care less about dyno numbers. Better numbers don't always mean faster.
____________
Best 60ft: 1.42
Best 1/8th: 5.97
Best 1/8th MPH: 119
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shane661
Needs a life
Posts: 11494
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posted September 03, 2008 11:02 AM
quote:
quote:
Well, I am probably going to try them at the track on Friday. I'll report my results.
please do, where you going mir?
Yes, MIR...for Jason Miller's seminar.
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Nox
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted September 03, 2008 03:53 PM
I got to tune the clutch on one, before and after.........
It moved the torque curve WAY up. So far, the owner is not very happy........, and it was dyno tuned with the stacks......., we had to go from tossing the clutch at 5000 to 7 to 8000 with the same clutch set up........., but once we got it lined out, it seems to be coming around...........,
Overall, I was not totally impressed with the gains. The bike also had the head milled, and the head mildly ported. It dynoed out well, but had no nuts down low like before.........., but it is coming around........., once the last couple adjustments are made to the multi stage, it will be quite a bit quicker........., just changed things up more than we expected..........
____________
42 Wins
21 Runner-ups
2010 TMRC Super Street Points Champion
2010 PMRA Super Street #3 Points
2009 PMRA Super Street Points Runner-Up
6 Time Centerville Dragway Points Champion
Sponsored by:
Scorpion Helmets
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AMSOIL
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Syed Leathers
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shane661
Needs a life
Posts: 11494
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posted September 03, 2008 04:01 PM
Edited By: shane661 on 3 Sep 2008 17:12
Are you saying that due to 1" or less change in velocity stack length, that you had to add 3k rpm to the launch? I find that hard to believe....but I'll soon know.
Sounds more like a poor combination of engine mods and/or overall tuning...
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2002 zx12
Novice Class
2002 zx12
Posts: 67
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posted September 04, 2008 12:47 AM
Here is some good Info on the stacks http://secure.mycart.net/catalogs/catalog.asp?prodid=4866093&showprevnext=1
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Nox
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted September 04, 2008 05:30 AM
Yes.
And they put in 15 50 oil. He was able to lower it to 7000 when he put back 5 w 30
____________
42 Wins
21 Runner-ups
2010 TMRC Super Street Points Champion
2010 PMRA Super Street #3 Points
2009 PMRA Super Street Points Runner-Up
6 Time Centerville Dragway Points Champion
Sponsored by:
Scorpion Helmets
Galfer Braking
AMSOIL
Steve's Speed Shop
Kawasaki Sports Center
Mickey Thompson Tires
Catalyst Racing Composites
Conway Cycle
Syed Leathers
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Fastest-14
Expert Class
Fastest -14
Posts: 354
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posted September 05, 2008 01:19 PM
quote:
I got to tune the clutch on one, before and after.........
It moved the torque curve WAY up. So far, the owner is not very happy........, and it was dyno tuned with the stacks......., we had to go from tossing the clutch at 5000 to 7 to 8000 with the same clutch set up........., but once we got it lined out, it seems to be coming around...........,
Overall, I was not totally impressed with the gains. The bike also had the head milled, and the head mildly ported. It dynoed out well, but had no nuts down low like before.........., but it is coming around........., once the last couple adjustments are made to the multi stage, it will be quite a bit quicker........., just changed things up more than we expected..........
Nox, what does the clutch have to do with the stacks?
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Sticks_n_Stones
Needs a job
Posts: 3930
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posted September 05, 2008 01:31 PM
You got it backwards Fastest 14. Moving the power band up means launching at higher rpms, which on a full drag bike like the one he's talking about he has to "setup" the clutch, rev limiter, to engage at a certain point, to slip for a set amount of time to get the bike moving before engaging fully. Never worked on one, but familiar with the concept. Your clutch engagement is hardwired in, not done with your left hand like on a conventional bike, therefore you have to know when and how fast to engage it.
____________
'06 zx14
Muzzy M10/M14
PCIII w/ Muzzy map
Flies out K&N in!
bits n pieces...
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Fastest-14
Expert Class
Fastest -14
Posts: 354
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posted September 05, 2008 02:14 PM
quote:
You got it backwards Fastest 14. Moving the power band up means launching at higher rpms, which on a full drag bike like the one he's talking about he has to "setup" the clutch, rev limiter, to engage at a certain point, to slip for a set amount of time to get the bike moving before engaging fully. Never worked on one, but familiar with the concept. Your clutch engagement is hardwired in, not done with your left hand like on a conventional bike, therefore you have to know when and how fast to engage it.
No Sticks, that was Nox's quote that you are commenting on. I was the one with the question at the very bottom after Nox's comment. Hahaha! I was trying to find out what Nox was talking about.
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