01zx12r
Expert Class
Posts: 338
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posted June 02, 2002 02:34 PM
Swing Arm Options?
Ive reached my limit I think..lol....Once again the best I can muster out of my 12 is a 10.155 at 142.188 with a 60' of 1.765. My 660' was a 6.694. Either im shifting this thing very slowly (not using clutch) or something...Im at a loss..Im so close to the 9's in can taste it..
Let me know what you Guys and Gals think...
best mph..143.85 best et..10.151
Bike is on middle hole in links..1.5 inches off ground.
16-44th sprockets
K&N filters
PC3R with a good map (i think..lol)
180-55 sticky rear tire
Front lowered 1 inch and strapped
Shift lite set at 11k, but foot shifting before rev limiter
Muzzy Ti exhaust
I know without watching me make a pass its hard to say...But am I not being agressive enough off the line?..leaving at 4-5k. Is an air shifter or swing arm in order?...Help I WANT 9'S...Take care all....Chris
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NINJA12
Needs a job
Posts: 3310
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posted June 02, 2002 06:17 PM
WOT asap! Tuck , tuck, tuck and tuck.
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TurboBlew
Moderator
BUSY DOING THE SCHIAVO
Posts: 4590
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posted June 02, 2002 06:34 PM
Whats your 330 at?? Your 1.8th mile times could improve 2/10ths easily. You should still be able to run a 9sec pass on a 1.7 60ft, just make sure your 330 times are low low 4s (below 4.2)
Mph seems low. Are you at altitude? Also, most bikes hit the limiter well into the *red* zone on the tach. Mine hits about 12,400 or so. I would try to program your shift light for 11,500 or so. Another trick you might want to try is flipping the shifter upside down. You will have to add a washer to get enough clearance from the frame, but this will allow you to upshift by pushing the shifter down with your foot. Seems weird at first, but once mastered shifts become seemless like an airshifter was mounted!
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01zx12r
Expert Class
Posts: 338
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posted June 02, 2002 06:54 PM
Here in Wichita Kansas the altitude is 1500 on a good day..Temp was about 80 and humidity was about 30%. Our track doesnt have a 330' timer.
I know at times my clutchless shifting leaves a little to be desired..  How much could a BAD shifting person pick up by using an air shifter?
I should tell you I am 6' and 215 without gear. As far as hitting the limiter, im shifting right before it hits. 12k give or take. I know sometimes my 1st-2nd gear change is one a little early due to fear..LOL
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krexken
Zone Head
Posts: 732
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posted June 02, 2002 08:00 PM
You might want to condsider an ignition interruption device like Dale Walkers Holeshot or an MPS kill box. It's just a switch tied to the shift linkage. Much stealthier than air shifter and lots simpler to install. I've got em on both my bikes and a few friends have them also. We all like em. Hard to say exactly how much et was gained since conditions change every week and we're not exactly models of consistency but I'd guess a tenth a so. I think you can still improve your 60' times with more practice. You should be able to get it in the 1.6s but more importantly is how much throttle you feed it in first gear. Since my bike is super wheelie prone, I have to roll in the throttle and don't get wide open until I'm in second gear. Much easier to do with the cutout switch or air shifter since you don't have to let off the throttle to shift making for a much smoother transition from first to second.
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01zx12r
Expert Class
Posts: 338
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posted June 02, 2002 08:07 PM
kill switch?
Thanks Krex..where can I find out more info on either or both of the products you mentioned?..I like foot shifting and later want to install Nos. 2 bottles on the bike arent my idea of a clean set up..
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BA
Pro
Posts: 1592
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posted June 02, 2002 08:42 PM
I'd have to say that the 1/8th mile ET is showing to be more off than the 60'. I mean, 1.76 may not be knocking anyone's door down, but it should be good enough to get a 9, even at your size.
I'd agree with the other two that you may not be getting into enough throttle in 1st gear. If you were, you'd have a 9 for sure. That 1/8th ET seems to be a few tenths (2-4)off like they said, so you could get that by rolling into the gas more in 1st, even with bad foot shifting. (I foot shift too, no ign. cut-outs)
My question for you would be, "how FAR are you slipping the clutch out? 30ft? 50ft? 70ft? If it's only 25-30', then you should be able to get into almost full throttle quickly since the bike speed should only be in that 3000-4500rpm area. Now, If you're slipping the clutch out to the 50-70' mark, trying to keep those 5000-6000rpm's, then you would probably hit wheely trouble if you try to hit WOT too soon after that. Roll into it "non-abruptly" from that type of launch, after the 50-70' area.
I've been experimenting with both launch types lately. There are pro's and cons to both for me....
My advice would be, to get your chest or gut on the tank cover, nuts against the tank cover, and your helmet up around the windscreen when launching. You'd be *amazed* at how just a little movement of your upper body here can help your launch. Trust me!
After 1st gear, feel free to slide back in the seat, put that head as low as you comfortabley can, and keep those knees and elbows tucked in like NINJA12 said! 
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krexken
Zone Head
Posts: 732
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posted June 03, 2002 06:01 AM
Try Holeshot.com. His kit comes with the necessary switch and mount. The MPS kill box can be bought from most HP cycle suppliers, Pingle, Schnitz. The MPS is cheaper but you'll have to come up with your own switch and mount.
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01zx12r
Expert Class
Posts: 338
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posted June 03, 2002 04:49 PM
launch
BA...I think im slipping the clutch about 30 ft or so leaving at 4-5k depending on how brave im feeling..I dont believe that im hitting full throttle until 60ft or so. I will really try to put to use what you said about getting WFO quicker. Wont be going out this weekend but hopefully the next.
Krex... Checking on the site now and thanks for your help also..Will keep you guys posted and thanks for all the advise..If I hit the nines in the next couple of weeks, beers are on me..
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ZX12Girl
Pro
Adrenaline Junkie
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posted June 03, 2002 06:29 PM
I didn't see where you have done anything to the rear suspension????
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01zx12r
Expert Class
Posts: 338
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posted June 03, 2002 06:47 PM
Rear Suspension
I have only installed the Muzzy links (middle hole) and softend up the preload on the spring to set total bike height with me sitting on it about 1.5" off the ground (measuring from the lowest part of fairing). Both compression and rebound are setting at the middle settings.
ZX12Girl..I do remember you purchased a swingarm not to long ago..Where from and how do you like it?
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MadMike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
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posted June 03, 2002 07:17 PM
Muzzy has a very nice arm for the 12, 3" or 6"... I will look for a good picture of my arm and post it for you...
Mad Mike..
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ZX12Girl
Pro
Adrenaline Junkie
Posts: 1740
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posted June 04, 2002 06:53 PM
quote:
ZX12Girl..I do remember you purchased a swingarm not to long ago..Where from and how do you like it?
I bought my Adjustable swingarm extensions from Frank Adams. I sent my stock swingarm to frank and he welded the additions on. I think it was around $425 for a 0-6". You can take a look at them on -
http://www.psychobike.com/adjustarms.htm
We have our's set about 5" - man, does that help this wheelie monster ZX12R!!! It still lifts a little but nothing like stock length. Or was that because the clutch was slipping!!!  LOL
I am happy with the appearance, quality (welds), turn-around time and cost!!!!
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BA
Pro
Posts: 1592
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posted June 04, 2002 07:03 PM
Ang brings up a good point about your rear suspension.
While it's not exactly a "hard and fast rule", you might want to set your rear suspension to a really soft compression, and a "hard" rebound. (where it comes up slowest)
This allows the rear of the bike to go down easily, thus lowering the center of gravity, and stay down as long as possible by *not* rebounding quickly.
Good call Ang!
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ZX12Girl
Pro
Adrenaline Junkie
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posted June 04, 2002 07:21 PM
 Edited By: ZX12Girl on 4 Jun 2002 20:25
BA
That's exactly what we are playing with right now on my ZX12R. It does help!!!
We have not mastered the correct settings yet!!! Working on it!!!!
I have Muzzy links - last hole...but that depends on rider weight and if you wanna scratch the hell out of that lower fairing and tear up a $200 undertail!!!  what the hell....gotta pay to play!!!
Hey - Does anybody make an undertail (like the tiger tail for the Busa) to allow you to drop the rear???
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01zx12r
Expert Class
Posts: 338
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posted June 07, 2002 09:09 AM
Swingarms are heavy.....
Thanks ZX12Girl...Those are some nice swingarms. But im curious why everyone or seems to be is getting the stock arms stretched?...A friend of mine had Muzzy do his and it came back weighing 26lbs I think. Arent the aftermarket arms much lighter?...Why are people not using ones like On Trac and others?...Im just curious..The 4130 Steel arm for On Trac is 13-16 lbs for a 6inch I believe..Am I missing something here? Less weight means quicker ET's right?
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ZX12Girl
Pro
Adrenaline Junkie
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posted June 10, 2002 05:21 PM
Edited By: ZX12Girl on 10 Jun 2002 18:22
Well, The stock swingarm is aluminum the cut it off at the block and add a 6" adjustable block (Not very much material added because of the adjustable open area). The brake calpier mount is aluminum also. I would have to guess but I bet that by extending the stock arm, you are only adding a couple lbs. I am sure that Frank would know. Plus it is just out-right cheaper$$$ to get the stock one extended vs. buying another arm!!
It is about the best bang for the buck.
As far as having a lighter extended arm out on the market, Not sure about that. I guess it just depends on how much money that you are willing to spend!!
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ZX12Girl
Pro
Adrenaline Junkie
Posts: 1740
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posted June 10, 2002 05:23 PM
Plus, you can always go back to the stock or 60" setting for what ever you wanna race in!!
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