posted October 31, 2008 08:06 PM
new best but still looking for that majic # track prep was horrible a few passes i made still looking for that majic #
1.57 60ft 9.13@152.5
1.60 60ft 9.11@152.8
1.52 60ft 9.04@152.4 330 3.88, 1/8th 5.85 (wheelied had to pedal it in 1st)
i thinking a 5.80 would get me that 8sec slip or anything in the 1.4s, my shock is set pretty hard so the bike at 64" wants to come if i try to leave hard
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted October 31, 2008 09:50 PM
nice times, your very close! what are your mods, and how bad could the track be if your pulling the front up at 64"?
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tiwinder, lowered and strapped, pc5 w/ brocks pump map, 40t rear
posted November 01, 2008 03:21 AM
Edited By: madboost on 1 Nov 2008 11:22
quote:nice times, your very close! what are your mods, and how bad could the track be if your pulling the front up at 64"?
16/44 gears,Full Tiforce,Bazzaz,Mr9 fuel,Air shifter 180-185 suited(not a mod but i know people will ask). The track prep is bad since i only hooked 3 times out of more the 10 i ran, the other runs where just skating all over the track.
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 01, 2008 05:19 AM
madboost great numbers ... don't sweet it , it will come...... The 60 foot is the only missing number , you run a 1.40 anything and you will see your 8 second pass ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
posted November 01, 2008 05:58 AM
That's interesting. My 60 ft. is quicker, but my ET slower. Maybe the 45 lbs. and MR9 make a big difference. Our setups are very close. Maybe I am not getting the throttle open fast enough.
posted November 01, 2008 06:27 AM
lee thanks question for you and some others that cut good 60s, how do you guys set up suspension, when i first put my extensions on my buddy told me the bike was way too soft even on the hardest settting on the shock then we tightened the preload and now if it bites it wheelies very easy but most of the time it spins im thinking i should soften the preload up.
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
quote:That's interesting. My 60 ft. is quicker, but my ET slower. Maybe the 45 lbs. and MR9 make a big difference. Our setups are very close. Maybe I am not getting the throttle open fast enough.
Shane
45lbs will make a decent diffrence mr9 will give you a 1mph or two, i say weight and mr9 youre loosing about 3-4mph.total
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 01, 2008 08:44 AM
Man, your bike is flying given your 60's. It sounds to me like you have your setup too rigid. Allowing the chassis to move will absorb energy that would otherwise translate into a wheelie or breaking the tire loose.
Your shock compression setting needs to be as low as possible for your weight and riding position to allow the bike to squat without bottoming out. That sucking down is really important.
Crank your rebound setting up as high as possible without creating a pogo effect. As the shock rebounds it applies downward force on the rear tire to help it hook. Look for pogo if you are breaking loose down track.
Remember that spring preload doesn't change your spring rate or compression, only the transition from static to dynamic. Smooth is quick.
posted November 01, 2008 10:13 AM
Great numbers !
What were your 330 ft and 1/8 mile times.
- Zack
____________
2007 ZX-14
Stock Wheel Base, footshifting, pump gas
5.94 @ 128 mph
1.50 60ft
quote:Man, your bike is flying given your 60's. It sounds to me like you have your setup too rigid. Allowing the chassis to move will absorb energy that would otherwise translate into a wheelie or breaking the tire loose.
Your shock compression setting needs to be as low as possible for your weight and riding position to allow the bike to squat without bottoming out. That sucking down is really important.
Crank your rebound setting up as high as possible without creating a pogo effect. As the shock rebounds it applies downward force on the rear tire to help it hook. Look for pogo if you are breaking loose down track.
Remember that spring preload doesn't change your spring rate or compression, only the transition from static to dynamic. Smooth is quick.
rebound is all the way up, the bike seems to spring up kinda fast when i push down on the rear, I'm confused about pogo though what exactly is that?
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
quote:Great numbers !
What were your 330 ft and 1/8 mile times.
- Zack
9.11 pass ---330 3.970 1/8th 5.92@125.2
9.13 pass ---330 3.968 1/8th 5.93@124.8
9.0 pass --- 330 3.884 1/8th 5.85@124.2 pedaling a little
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 01, 2008 12:58 PM
Pogo-ing is where the rebound comes up so hard that when it hits the top of its stroke it de-weights the rear tire causing it to spin. Basically, the upward motion of the tail has too much momentum. At your weight I don't think you will experience this with a stock shock, but if you spin about 100-150ft out you'll want to decrease rebound by quarter turn increments.
I weigh 200lbs suited and I have my rebound set at 0 turns out and my compression at 0.5 turns out. I run consistent mid to low 1.40s, not the best by any means but better than most Busa's I see at the track.
If I were you I'd start with both at 0 turns out. If you bottom out give compression a quarter turn. Bottoming out is jarring and will cause the tire to break loose. You'll need someone to watch for this from the starting line for you or you can look for paint wearing off of the swingarm where the fuel pump comes in contact with it or tire rubbing the inner fender.
Keep in mind that all of this is happening under acceleration, where you are throwing a lot of weight back onto the rear. Watch the video clip of Smokin' below and see how his tag drops down to his tire and then slowly rises back up as he's getting down the track. My sense is that your bike has too much compression and doesn't suck down like that.
posted November 01, 2008 06:23 PM
My shock is set at 1/4 turn out on the rebound and compression and that works for me at 150 pounds ..... We are lucky both our tracks are prepped good , we do have problems in the winter when the track is very very cold ...When that happens i losen the strap a bit and that helps transfer more weight to the tire ...
If your spinning on the top end try 0 on the rebound and losen the strap a bit ...Remember these setting are not wrote in stone, what works for one will not work for everyone but it's a stating point ...
Fast 60 foot times are ticky .... you have to snap the clutch out fast to get the bike to move quickly but not so far out that the motor bogs .Not so much of a snap that it lifts the tire out of the beams but enough to get moving fast ..Most times i have the clutch out and throttle pinned before i hit the 60 mark ... If i do it right i will not wheely and will not bog and cut 1.30s ... turn up the sound on the video that burnout posted ... That was a 1.40 60 time , you will hear a slight bog as i tossed the clutch ..That little bog cost me some 60 foot time ...If you get it right all you will hear is a clean pull from 5500 to red line ..
That is how i do it on a good track , if the track is not hooking i adjust my clutch release ( slow it down) so not to spin the tire ... losen the strap ... drop tire PSI ...soften the compression on the shock ....Rarely do i need to do all things listed above, most times i just slow my clutch hand a losen the strap ...
Hope this helps
Smokin ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
posted November 03, 2008 05:30 AM
thanks guys i took some preload out the bike feels somewhat soft now in the rear and comes up a little slower on the rebound, gonna try the metzler dragtech as well and see if i can hook.
thanks for all the input!
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 03, 2008 08:58 AM
Don't waste your money on the metzeler... go ahead and get a mickey thompson.
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Best 60ft: 1.42
Best 1/8th: 5.97
Best 1/8th MPH: 119
posted November 03, 2008 10:15 AM
i guess we'll see what happens if it hooks i will know for sure what tire hooks better i currently running 180 michelin pr3 it hooks but only at very well preped tracks, i street ride my bike and much rather find something that works at the track and i can ride on the street, micky is very scetchy on the street especially around turns on a stretched bike, had one on my zx9 before.
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 03, 2008 10:28 AM
Maybe I am the luckiest guy in the world. I simply increased compression and rebound to maximum, and run a u-soft with 18 lbs. in it. I left preload as it came, even at the 64". Seems to work pretty well at MIR. I am 225 lbs. suited.
My gearing is 16/45 and I leave at 4k. Best 60 ft. is 1.49, numerous low 1.5's. Not saying I'm good, but the bike works with the setup.
posted November 03, 2008 10:50 AM
i hook at mir every pass best of 1.42 but major wheelie after the 60ft
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 03, 2008 10:54 AM
I wonder if the added preload isn't making the bike rebound too fast and upset the chassis causing the wheelie. I guess you will soon know....
posted November 03, 2008 10:57 AM
i think added preload is making the bike rebound way too fast and therefor not staying planted down...i'll find out friday i guess
____________
08 zx14-with a few things.
94z28 383,TH400,YSI,9",DFI and much more
9.44@144 w 1.5060ft
posted November 03, 2008 11:00 AM
Edited By: Shane661 on 3 Nov 2008 19:01
One thing that would help is someone taking video. I had consistent wheelie problems, but I noticed in the video that it was every time I brought my leg up to shift . Of couse, with the air shifter I don't have that problem now. I don't lift my feet up until after the 1-2 shift.
posted November 03, 2008 11:26 AM
Edited By: madboost on 3 Nov 2008 19:26
i never put my feet on the pegs lol
____________
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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posted October 31, 2008 08:06 PM
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