BigJaay1
Novice Class
THUNDAKAT RACING
Posts: 62
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posted May 07, 2009 07:47 AM
08 Busa shock
It's been some talk about installing a 08 Busa spring on 14's. I'm concerned about it being too stiff. I am 215 without gear. I'm 6 inches over stock. I'm lowered 3" in the rear and 1 1/2" in the front. Has anyone tried it? Any info?
Thanks,
Jay
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2006 Kandy Brandywine / White Diamond ZX14 - HPC POWERED
  
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Wheelie
Needs a life
Old Man
Posts: 6902
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posted May 07, 2009 09:10 AM
I weigh 215, 6 over as well, got my 14 shock cranked all the way down, adjusted all the way in, and its still to soft, I want a 08 Booza shock!
wee
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eklipse636
Needs a life
ZX-14
Posts: 6046
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posted May 07, 2009 09:23 AM
Very interested.. But can you get a busa shock cheaper than a aftermarket one? I don't think it would be too tight, but don't the bikes weigh ab the same? Anyone know if the busa is a stiffer spring?
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Best: 60ft 1.351 1/8 5.68 mph 123.98 1/4
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Wheelie
Needs a life
Old Man
Posts: 6902
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posted May 07, 2009 09:28 AM
Booza spring is stiffer, and the Showa is very adjustable, it responds well to minor adjustments unlike the 14.
wee
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BigJaay1
Novice Class
THUNDAKAT RACING
Posts: 62
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posted May 07, 2009 09:37 AM
The ZX14 spring rate is 9.7 kg/mm
The 08 Busa spring rate is 13.1 kg/mm
Jay
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2006 Kandy Brandywine / White Diamond ZX14 - HPC POWERED
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BigJaay1
Novice Class
THUNDAKAT RACING
Posts: 62
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posted May 07, 2009 09:50 AM
Wheelie
What's your email? I think I have a extra 08 Busa shock/spring for you.
Jay
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2006 Kandy Brandywine / White Diamond ZX14 - HPC POWERED
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eb2318
Novice Class
zx14
Posts: 82
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posted May 07, 2009 10:00 AM
whats up jay, who's that exhaust working for you? I thinking of upgrading real soon, leaning towards brock though
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i luv my zx14
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BigJaay1
Novice Class
THUNDAKAT RACING
Posts: 62
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posted May 07, 2009 10:11 AM
Waz up. I like the Cannon. It Looks good, sounds good and makes good power. But it hangs too low for dragracing. It is actually part of the reason I need to stiffen my suspension.
Jay
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2006 Kandy Brandywine / White Diamond ZX14 - HPC POWERED
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Wheelie
Needs a life
Old Man
Posts: 6902
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posted May 07, 2009 10:16 AM
quote:
Wheelie
What's your email? I think I have a extra 08 Busa shock/spring for you.
Jay
mrwheelie@tx.rr.com
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the14thninja
Novice Class
Show and Go
Posts: 49
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posted May 07, 2009 11:25 AM
i did the 08 busa spring swap on my 08 thats 8 inches over and i love it, i got it on ebay for $65 and it doesn't swat as much when i get on the throttle hard.
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I live to ride and ride to live
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dubious
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Needs more time to ride!
Posts: 8442
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posted May 07, 2009 01:34 PM
 Edited By: dubious on 7 May 2009 21:34
whats the overal shock length comparison?
There is clearance under the tank ?
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natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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Compton
Zone Head
Posts: 969
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posted May 07, 2009 01:47 PM
I had a hayabusa Ohlins drag shock on my bike, i say had because when i went to put on my fuel tank it wouldn't clear. Length is the same just have to watch out for the resivoir as it wont clear a 06-07 fuel pump drop down.
08 - 09 may work.
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b.w.
zx14, little longer, little louder, little lower.
08 Busa, just a little longer and louder and lower than the 14
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BigJaay1
Novice Class
THUNDAKAT RACING
Posts: 62
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posted May 07, 2009 05:28 PM
The14thninja
How much do you weigh?
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2006 Kandy Brandywine / White Diamond ZX14 - HPC POWERED
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kenneth charles
Parking Attendant
Posts: 27
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posted May 07, 2009 07:22 PM
so can you use the shock/spring together,as it was on the busa?or just the spring?does it have to be an '08 up?racetech recommended a 11.7kg spring for mine.
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dubious
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posted May 07, 2009 07:32 PM
13.4 is what i calculated for 6" over, and 200lbs.
That would work well, but better with the entire shock, as the damping curves would match the massive rate increase....
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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kenneth charles
Parking Attendant
Posts: 27
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posted May 07, 2009 07:44 PM
my bike is an '08.it's 6" over,and i weigh 240.
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BigJaay1
Novice Class
THUNDAKAT RACING
Posts: 62
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posted May 07, 2009 07:55 PM
Thanks everyone..........
Hey Dubious,
That's sounds like a good excuse for me to lose 15 lbs. Lol. Do you know if the entire busa shock (08) will bolt up? I've only heard of people using the spring.
Jay
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2006 Kandy Brandywine / White Diamond ZX14 - HPC POWERED
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SteveWFL
Moderator
Posts: 27920
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posted May 07, 2009 08:45 PM
busa shock? more factory junk, although the Suzuki part may be better. here's the real shock for the ZX14 and a link for it:
http://prostores2.carrierzone.com/servlet/brockracing/-strse-1563/Dragshock--cln--ZX-dsh-14-(2006-dsh-2007)/Detail
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2010 Concours14
'08 R1 YAMAHA
ZX14 gone!
CBR600RR track bike
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Bently
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2012 14r In Blue and no Mods!
Posts: 5428
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posted May 08, 2009 04:12 AM
Well I would take a 70.00 shock over a 800.00 dollar one in a heart beat. If I was a hardcore roadracer well then it would be a different story but for the drag strip the busa shock would probably be eniugh for most guys.
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MotoCycho
Expert Class
Posts: 337
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posted May 08, 2009 05:10 AM
Contact RaceTech and get a new spring for the 14 shock. They helped me Re-spring mine and it was cheap as hell and a piece of cake. Ask for Brad Bailey (951) 279-6655 Ext.111
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Wheelie
Needs a life
Old Man
Posts: 6902
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posted May 08, 2009 06:03 AM
quote:
Contact RaceTech and get a new spring for the 14 shock. They helped me Re-spring mine and it was cheap as hell and a piece of cake. Ask for Brad Bailey (951) 279-6655 Ext.111
whats cheap?
wee
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dubious
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Posts: 8442
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posted May 08, 2009 06:20 AM
Edited By: dubious on 8 May 2009 14:57
quote:
Thanks everyone..........
Hey Dubious,
That's sounds like a good excuse for me to lose 15 lbs. Lol. Do you know if the entire busa shock (08) will bolt up? I've only heard of people using the spring.
Jay
Not sure if it fits, have not tried it.
You are the first i heard of it, but here is more reason if it does...
race tech recommends a 10.7 spring for a 200 lb rider , race application, on stock wheelbase.
http://old.racetech.com/evalving/SpringRateCalculation/dirtspring.asp?brand=Kawasaki&yr=06-08&ml=ZX-14&formuse=form1&SpringType=Fork
The 6" additional length equates to 25% more leverage over the stock swingarm, as the stock swing arm is 24" long + 6" (25%) = 30 "
10.7 x 1.25 = 13.375
Keep in mind thats 30% more spring rate, and additional damping charachteristics would be optimal to control the rebound on that spring.
The busa shock is already valved in the ballpark for that spring, so it would be a very economical way to acheive better suspension control on a 6" stretched application.
it would be in the ball park for a 215 lb rider as well.
One might need to consider adjustable lowering links to set rider height, as I doubt the busa shock is the same length as the zx14 shock.
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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Old Guy
Expert Class
Posts: 470
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posted May 08, 2009 07:25 AM
Hmmmm...,,maybe spend a little more time and talk with a suspension guru andget what will work??
The valving and springs on stock Jap stuff is crap.
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Living the good life...,
On a XZ !!!!!
Tsukigi stainless full system
pcIII w/custom map
NO freakin flies!!
GP suspension forks
Penske rear shock
Rich's custom seat
And a whole bunch of other stuff.
97 zx6r full race bike with all the
good stuff
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dubious
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posted May 08, 2009 09:06 AM
Edited By: dubious on 8 May 2009 17:08
I GOT AN OHLINS 
WAS TRIING TO HELP OUT MY FRIENDS ON A BUDGET
IF THE BUSA SHOCK IS THE RIGHT LENGTH ( OR YOU HAVE THE RIGHT LENGTH LINKS), AND PHYSICALLY WILL FIT,
THE BUSA SHOCK WOULD WORK MUCH BETTER THAN THE POS STOCK ZX14 SHOCK FOR A STRETCHED BIKE, OR REALLY HEAVY RIDER ON A BUDGET.
A SPRING IS A SPRING, THEY ALL GET WEAK OVER TIME
THE VALVING IN THE BUSA SHOCK IS BETTER SUITED FOR THE 13.4 SPRING TOO.
I USED TO BE A RACE TECH SERVICE REP, AND DID MOTOCROSS SUSPENSION, WHICH BTW IS MUCH HARDER TO DIAL IN THAN ANY STREETBIKE SUSPENSION
I DON'T THINK I NEED A GURU.....
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natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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Compton
Zone Head
Posts: 969
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posted May 08, 2009 01:13 PM
quote:
busa shock? more factory junk, although the Suzuki part may be better. here's the real shock for the ZX14 and a link for it:
http://prostores2.carrierzone.com/servlet/brockracing/-strse-1563/Dragshock--cln--ZX-dsh-14-(2006-dsh-2007)/Detail
maybe on paper, but go to one AMA drag race and you'll see that none of the fast 14s run this. they have all found better options.
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b.w.
zx14, little longer, little louder, little lower.
08 Busa, just a little longer and louder and lower than the 14
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