JZX

Zone Head
Posts: 943
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posted September 17, 2011 08:11 PM
SS head=wheelies
5.80-5.84 @ 124-125 so far. Bad wheel lift between 1-2 shift backing off the throttle and its killing my et. I made 3 passes so far. Im gona pull the strap more and launch lower rpm. Any suggestions?
Btw, im on 93 pump gas
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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JZX

Zone Head
Posts: 943
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posted September 17, 2011 10:58 PM
All finished, got a 5.76@124.34 on a 1.47 to keep the front tire low enuff so I chopped it before the 1-2 shift ever so slightly. What I am finding out is at a 7k rpm throw at the end of 1st gear it just keeps coming up and up high. I came out lower and let it bog but that kept me in the 5.80's. I had to break it even and slip the clutch longer to get into the 70's.
A few things I found out-
The motor gets hot quick
It revs a little faster
It spins the tire on the big end at my usual pressure
I picked up a solid 2mph
My air fuel on the dyno from 8k rpm to red line was around 13.2
Should I richencit up a little for the track? I am thinking that its heating up faster from higher compression with my air fuel where it is. Aren' t track maps at 12.8 to 12.9 on a dyno?
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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justoyz2

Zone Head
Justoyz Racing
Posts: 858
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posted September 18, 2011 03:20 AM
1) suspension: it seems your bike is rebounding too fast; you should be able to get into 2nd gear before the bike is fully rebounded
2) mapping: what was the D/A when you were at the track and what fuel are you running?
-e85/Mr12: if the D/A supports it, run 12.8 or 9 to 1
3) Kawi like to run a lil rich for the ram air...
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2012 zx14R-blue,2012 zx14R-black, 2014 zx14Trbo, 2011 zx10R, 2007 zx10 Turbo.....
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kawasakijockey

Pro
Posts: 1876
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posted September 18, 2011 03:57 AM
I kinda agree it could be a shock problem. Mine does the same thing if I spin the tire at all in upper part of first. What gear you got on it?
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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CrotchRocket

Moderator
Bracket Racing with Betsy
Posts: 8038
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posted September 18, 2011 05:14 AM
Whats your wheel base, what gearing, what tire, what clutch set up???
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Jason Miller StreetBike Seminars
*****DragRacers do it better, because they dont cut Corners*****
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 05:19 AM
Rebound is set all the way to S. The back is staying down. Gearing is +6 in the back, DA was 2500-2600 and I am on pump gas. It spun on the big end I think becuase my strap was pulled too tight.
My set up is identical as before, no wheelies and no problems. The only difference is the head.
____________
06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 05:34 AM
The bike:
66"
17/47
CC Drag Pack clutch/stock springs no spacers
M14/M10
shifter
10-30 lucas oil
93 shell pump
SS head mill/cams set 109-109.5
shinko hook up between 18-22 psi
Me:
5'8 177 in shorts
weather:
87f down to 79 degrees late
Humidity 58% to 72% late
Da was 2485 to 2600 reading on my Kestral
Power:
190hp 108tq
a/f 13.2 on dyno
dyno temp 107-110 degrees
dynojet250
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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eklipse636

Needs a life
ZX-14
Posts: 6046
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posted September 18, 2011 05:37 AM
It's not going to spin at the top end because of your strap. I think it's either the shock or the track
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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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JZX

Zone Head
Posts: 943
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posted September 18, 2011 05:45 AM
It spun in the left lane later in the night when I pulled it down, its bumpy in that lane just passed the 330, where I spun. Right lane hooked, but I loosened it a little when I switched lanes.
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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kawasakijockey

Pro
Posts: 1876
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posted September 18, 2011 05:46 AM
If you have the shock backed all the way soft "S" on the rebound it wont stay down.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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smokinZX14

Needs a life
Posts: 10197
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posted September 18, 2011 06:18 AM
quote: It spun in the left lane later in the night when I pulled it down, its bumpy in that lane just passed the 330, where I spun. Right lane hooked, but I loosened it a little when I switched lanes.
Set both of your rear shock adjustors in all the way ( clockwise) till seated , now back both of them off 1/4 of a turn ( counter clockwise ) .. I would try a 46 or 45 tooth on the rear .. A one tooth change may calm down the wheely problem ..
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 06:19 AM
just to make sure I have it right, the top(thru the whole in the frame) I had adjusted turning the screw driver opposite clockwise and it was tight, nearly all the way in. The bottom, which says (TEN) I had set right in the middle, if i turn to S the scrw comes out, if I turn to H the screw goes in, so Im in the middle, which worked great before.
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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smokinZX14

Needs a life
Posts: 10197
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posted September 18, 2011 06:26 AM
On you fueling or A/F 13.2 on the dyno will be a bit lean at the track ... Once you get your wheely and spinning problems fixed you can play with your A/F .. Start by adding 3% at 6000 to 11,000 at 100% throttle .. If you MPH picks up try another 3% .. Keep adding fuel till the MPH falls of , then back down to you best MPH numbers .. MAKE only one change at a time .. Test each change 4 or 5 times to make sure you have good numbers . Fix one problem at a time ..
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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kawasakijockey

Pro
Posts: 1876
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posted September 18, 2011 06:29 AM
I would set both all the way in or back off a 1/4 turn like Smokin is saying.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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smokinZX14

Needs a life
Posts: 10197
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posted September 18, 2011 06:29 AM
quote: just to make sure I have it right, the top(thru the whole in the frame) I had adjusted turning the screw driver opposite clockwise and it was tight, nearly all the way in. The bottom, which says (TEN) I had set right in the middle, if i turn to S the scrw comes out, if I turn to H the screw goes in, so Im in the middle, which worked great before.
Both upper and lower adjustment screws ALL the way in ( clockwise ) Then back them off ( counter clockwise) a 1/4 of a turn ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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kawasakijockey

Pro
Posts: 1876
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posted September 18, 2011 06:32 AM
Just so you know, the top screw is compression and lower is rebound. It is opposite of the front fork.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
|
JZX

Zone Head
Posts: 943
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posted September 18, 2011 06:34 AM
Edited By: JZX on 18 Sep 2011 14:37
quote: On you fueling or A/F 13.2 on the dyno will be a bit lean at the track ... Once you get your wheely and spinning problems fixed you can play with your A/F .. Start by adding 3% at 6000 to 11,000 at 100% throttle .. If you MPH picks up try another 3% .. Keep adding fuel till the MPH falls of , then back down to you best MPH numbers .. MAKE only one change at a time .. Test each change 4 or 5 times to make sure you have good numbers . Fix one problem at a time ..
Considering the temp during the dyno pulls
it may be alot leaner at the track. Will do.
As far as the shock set up went. I just went out and turned the screws in the position you just posted. The top screw, which I believe is the rebound was way out-meaning I had at least 6 full rotations with the screw driver to get it all the way in. The bottom was set out pretty far out too, so both are 1/4 turn from all the way in now.
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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smokinZX14

Needs a life
Posts: 10197
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posted September 18, 2011 06:39 AM
quote:
quote: On you fueling or A/F 13.2 on the dyno will be a bit lean at the track ... Once you get your wheely and spinning problems fixed you can play with your A/F .. Start by adding 3% at 6000 to 11,000 at 100% throttle .. If you MPH picks up try another 3% .. Keep adding fuel till the MPH falls of , then back down to you best MPH numbers .. MAKE only one change at a time .. Test each change 4 or 5 times to make sure you have good numbers . Fix one problem at a time ..
Considering the temp during the dyno pulls
it may be alot leaner at the track. Will do.
As far as the shock set up went. I just went out and turned the screws in the position you just posted. The top screw, which I believe is the rebound was way out-meaning I had at least 6 full rotations with the screw driver to get it all the way in.
Yup that would be a problem ... At 66 inches you are over taxing the shock , so everything needs to get tighter .. setting the screws in makes everything tighter .. That slows down the shock action ( both compression and rebound ) and will help keep the tire planted .. It will also help with the wheelys..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 06:47 AM
Man, i just couldnt let it go like I wanted to all night, and the front end coming up was making me modulate the throttle on every pass. I could almost be sure that if i could have let the clutch go sooner and stay WOT that the mph would have been higher too. I guess the extra 10 hp or so really exposed my suspension set up last night.
____________
06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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smokinZX14

Needs a life
Posts: 10197
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posted September 18, 2011 06:55 AM
quote: Man, i just couldnt let it go like I wanted to all night, and the front end coming up was making me modulate the throttle on every pass. I could almost be sure that if i could have let the clutch go sooner and stay WOT that the mph would have been higher too. I guess the extra 10 hp or so really exposed my suspension set up last night.
Extra HP will expose a lot of problems .. It will cause you to relearn a few things .. Now that you have extra power you have to take some time to get full use of it .. Even little changes can and will toss your game off .. This is why you only make one change at a time , you need time to adjust to each little change .. Don't feel bad , we all have to do it .. Don't sweat it , you will get it ..
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 06:56 AM
quote: Just so you know, the top screw is compression and lower is rebound. It is opposite of the front fork.
I saw a guy at the track adjusting his screws on the front forks, that was efore he pulled his strap...
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 07:09 AM
quote:
quote: Man, i just couldnt let it go like I wanted to all night, and the front end coming up was making me modulate the throttle on every pass. I could almost be sure that if i could have let the clutch go sooner and stay WOT that the mph would have been higher too. I guess the extra 10 hp or so really exposed my suspension set up last night.
Extra HP will expose a lot of problems .. It will cause you to relearn a few things .. Now that you have extra power you have to take some time to get full use of it .. Even little changes can and will toss your game off .. This is why you only make one change at a time , you need time to adjust to each little change .. Don't feel bad , we all have to do it .. Don't sweat it , you will get it ..
Its been since my 03 when a bad crash on my turbo bike took me out and made me decide to sell both bikes and go fishing instead. Aside from jumping on a few bikes from time to time I was done. Forgetting most of it. So after 5 mos being back in the game and now 7 trips to the track-I guess it' s time to get serious and quit getting excited.
I guess all you guys were watching the fight last night when I was at the track,lol.
Thanks for the help and input-next weekend
____________
06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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Wheelie

Needs a life
Old Man
Posts: 6902
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posted September 18, 2011 07:19 AM
get a 12 over swingarm and a 008 tire
wee
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Wheelie

Needs a life
Old Man
Posts: 6902
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posted September 18, 2011 07:23 AM
I love 2nd gear power wheelies
wee
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JZX

Zone Head
Posts: 943
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posted September 18, 2011 07:27 AM
wee, I do miss SWB
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06 ZX14 65"
Best 1/8 mile 5.68@126.4 on a 1.41 60'
Best 1/4 mile 8.87@152.7 on a 1.47 60'
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