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BIKELAND > FORUMS > ZX12R ZONE.com > Thread: Low End NEW TOPIC NEW POLL POST REPLY
rossi


Novice Class
Posts: 77
posted February 02, 2009 08:39 AM        
Low End

Is there anyway to beef up the low end take off. I know the bike is like 500lbs compared to most 1000's at 350lbs or so. I dont get caught up to my buddys until I hit 2nd gear than I pass them but off the take off she just seems slugish. I have all the typical mods. Full Muzzy, PC3, K&N, timing retarder, dropped a tooth in the front. It's not that I'm slow off the take because my 900 I can beet anybody off the line. Just cant seem to get out of the whole with her.

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rgeorge


Expert Class
Posts: 220
posted February 02, 2009 08:56 AM        
16 tooth front sprocket
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KZScott


Needs a life
high on speed
Posts: 7235
posted February 02, 2009 09:19 AM        Edited By: KZScott on 2 Feb 2009 17:21
you can change the cam timing to move more power to low end. bump compression a bit ect
theres also a low first gear you can put in the trans. leave the sprockets alone so the rest of the gears are the same(keep the same top speed), but first is lower
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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rossi


Novice Class
Posts: 77
posted February 02, 2009 01:30 PM        
I'm not sure I know how to do all of that. Is any of that fairly easy? I've tore everything appart on my old Kawi's but I have not really messed with anything mechanical but I will be willing to try anything if guided through it. I have it lowered but as far as the timing I've never had to do anything with that. How much does the first gear cost? I can probably do that myself.
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KZScott


Needs a life
high on speed
Posts: 7235
posted February 02, 2009 03:56 PM        
changing cam timing requires adjustable cam sprockets. you will have to take them out to have this done. and then you need a degree kit.... not really a beginner thing. changing the first gear requires you to split the engine cases in half. not exactly beginner either, but if you can follow the manual its doable. Robinson Industries billet low first gear.... i think its around $200? I have one in mine, but i got it used for 165 i think
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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2000redrocket


Pro
Posts: 1662
posted February 02, 2009 06:36 PM        Edited By: 2000redrocket on 3 Feb 2009 02:36
i noticed you said timing retarder. if you actually have the timing retarded then i will say that could be causting you some low end torque.
cam timing wise we have a lot of overlap. if you spread them out more and get rid of the overlap it should help the low end some.if i do it i was going to advance the exhaust cam 2 deg so it closes sooner and leave the intake cam alone. this should take away some top end power but you can not have both. i would give up the 6hp more top end i have over another 2000zx12r to have it below 6000rpms.

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whitehendrix


Zone Head
fails!
Posts: 757
posted February 02, 2009 09:47 PM        
+1 on timing.


____________

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weapon. The black is for formal
occasions. - ZRXDean

ill never own a busa unless
someone gives me one.... and then
ill sell it -KZScott





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KZScott


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Posts: 7235
posted February 02, 2009 09:55 PM        
maybe he ment TRE? not timing retarded (ign)
(to avoid confusion lets specify if we mean ign or cam timing )
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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2000redrocket


Pro
Posts: 1662
posted February 03, 2009 05:36 AM        
what does the tre do?
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NOX


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Posts: 3745
posted February 03, 2009 04:17 PM        
Dont retard the timing..........

Low first gear, big difference...........


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Shane661


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Posts: 11494
posted February 03, 2009 04:30 PM        Edited By: Shane661 on 4 Feb 2009 00:32
Try 17/47 gearing with a 190/50 tire (shorter height, lower overall gearing). That should get you moving....

Also, try 3 degrees of timing advance (with premium fuel), it worked well for me.

Shane

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KZScott


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Posts: 7235
posted February 03, 2009 05:05 PM        
quote:
what does the tre do?

makes the bike think its in 5th all the time so the ign timing isnt retarded in the lower 3 gears... i think. also opens the secondary flies sooner if you have them
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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rossi


Novice Class
Posts: 77
posted February 05, 2009 06:39 AM        
I'm not a %100 sure that it was a retarder when I asked the local shop thats what they said.
Its A small cream or white colored box about 2in. by 1in. and the wire runs off into my caseing below the injectors. I have no idea what it is I will have to take it out tonight and look at it. But if anyone has any suggestions let me know. At first I thought it might be a bonneville box but after talking to the shop they think it is a retarder.????????

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rossi


Novice Class
Posts: 77
posted February 05, 2009 06:47 AM        
As far as my mapping goes I have the timing advanced on there 3 deg. and I assume I have a good map. Not sure because im new to fuel injected. My current bike is the 02' model. I'm not sure if this info will help with getting me up to speed. As far as the engine go's I had to tare into my 01' to replace my shift fork, so i'm somewhat familiar with what the engine looks like and am comfortable making changes on anything. Thanks for the help.
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TRNorBRN6001


Needs a job
Posts: 2021
posted February 05, 2009 07:11 AM        
Make sure your clutch is good. Low first is very very very nice, but I think you might have to get the contact dogs worked a little as Robinsons are at a little different degree than stock if I remember correctly.
____________
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KZScott


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Posts: 7235
posted February 05, 2009 07:54 AM        
i had 1-4 billet output gears put in when i had R&D do my trans(back cut, drum mod ect ect). had dads done too but no billet parts. i think Mark said that the low first would be a direct swap if we wanted to put it on dads later, so it must be back cut allready...
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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Rossi


Novice Class
Posts: 77
posted February 10, 2009 09:12 AM        
I'm not sure what the contact dogs are? (TRNorBRN6001)


And does anyone no what this small box is I have. It's cream colored and plugs into my engine casing below the injctors. About 12 inches down from the injectors. It has a lead plugging into the case but the box itself is like 3in by a 1 1/2 inch. Cream colored I think???
Not sure if maybe a bonneville box or what?

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KZScott


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Posts: 7235
posted February 11, 2009 02:03 AM        Edited By: KZScott on 11 Feb 2009 10:04
contact or gear dogs are the stubs on the side of the gears. this is the part that gets an angled cut when you race cut a trans. the angle prevents the gear from popping out under load
you are not describing a bonneville box. look at Muzzys.com for a pic(gold anodized aluminum). is it plugged into the speed sensor? g pack maybe? speedo healer?
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

  Ignore this member   
Rossi


Novice Class
Posts: 77
posted February 11, 2009 02:45 AM        
Thanks for the info on the gear dogs, I understand now. As far as that box goes I have no clue on it but tonight I will tear open the bike and get a pic. of it to post on this site. Hopefully that way if I still can't figure it out off Muzzy's website there has to be someone here that know's exactly what that box is. I did'nt think it was bonneville box because where it was mounted ergo it does look like one as far as size and shape go.
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KZScott


Needs a life
high on speed
Posts: 7235
posted February 12, 2009 12:12 AM        
race cut by R&D on the gear dogs


____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

  Ignore this member   
rossi


Novice Class
Posts: 77
posted February 13, 2009 06:09 AM        
Thanks ya I know exactly what your talking about now. Now I just need to figure out how im going about this. Still have'nt figured out what that box is yet.
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