smokinZX14
Needs a life
Posts: 10197
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posted March 15, 2010 06:02 AM
 Edited By: smokinZX14 on 15 Mar 2010 14:06
quote:
Smokin would you consider the 13.5 comp ratio safe on a street bike? What I am getting at is would pump 93 and hot humid summer days have the bike in detonation? Could the Muzzy advacer be used to take a few degrees of timing out to prevent it safely? Would a street combo be more like mill omly 15 thousandth off the head and shoot for 13 to 1 compression be a safer bet. Would the higher comp equall higher motor temps as well? It would be real nice to have an extra 10hp in your pocket on bike night.
13.5.1 is a guess on my part ... It could be a bit more or a bit less than 13.5.1 ... Jesses bike didn't have any detonation on the dyno under load but it was only 70 Degs that day ... You might have a problem on a 90 deg day at low low rpms if you put it under heavy loads ..I really think you would be fine with 13.5.1 IF you don't lug the motor .. Keep the RPMs up a bit you should be fine with 92 or 93 octane.. Just don't put it in 6th at 3000 rpms and wack the throttle .. Like we would ever do that anyway ...
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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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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted March 15, 2010 06:14 AM
I ran 13.5 to 1 for 4 years on the street with a 1375 zx12r and then it was a 1427 cc. Never an issue but use the higher octane fuel where ever you stop.
Like Lee said, never lug the motor.
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Y2KZX12R
CompetitionCNC.com
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smokinZX14
Needs a life
Posts: 10197
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posted March 15, 2010 06:29 AM
Edited By: smokinZX14 on 15 Mar 2010 14:38
Jims ( Y2KZX12R ) Super sport head is the way to go... Had i known about his SS package before I had jesses head done I would have gone the way .. 375.00 is a steal ..
Jesse motor is not a true SS motor , it will be lacking 10+ hp from what the guys running SS have .. We knew that going in that we would be short some HP ... Jesse bike is a 06 so his weight will be a total of 670 pounds .. While the 08 09 bikes have to weight in at 680 .. This may help Jesse even the odds a bit ..Jesse also rides this bike on the street and i didn't want him to have to run race fuel all the time so i settled on 13.5.1 ... We will see how Jesse does with the new set up , If he does well we may pull the head back off and send it to Jim for the full SS head package ..
Jims SS head will make great power ( we have seen it in action ) But for the street you will have to run High Octane fuels.. Pump gas is not going to work ..
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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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Shane661
Needs a life
Posts: 11494
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posted March 15, 2010 06:41 AM
Edited By: Shane661 on 15 Mar 2010 14:41
From what I understand, a true Supersport head would not be a good idea for a street motor. But I know that Jim can tailor the head to fit a street/strip application. 
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SteddyTeddy
Pro
Posts: 1664
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posted March 15, 2010 06:42 AM
quote:
I ran 13.5 to 1 for 4 years on the street with a 1375 zx12r and then it was a 1427 cc. Never an issue but use the higher octane fuel where ever you stop.
Like Lee said, never lug the motor.
Jim do you think I will be able to get away with 14:1 on my ZRX motor without adding a little booster to each tank?
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smokinZX14
Needs a life
Posts: 10197
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posted March 15, 2010 06:45 AM
quote:
From what I understand, a true Supersport head would not be a good idea for a street motor. But I know that Jim can tailor the head to fit a street/strip application.
That is why i said to go with Jims stage one head for the street guys ...That is if you are not going to run Super Sport ..
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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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smokinZX14
Needs a life
Posts: 10197
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posted March 15, 2010 06:47 AM
quote:
quote:
I ran 13.5 to 1 for 4 years on the street with a 1375 zx12r and then it was a 1427 cc. Never an issue but use the higher octane fuel where ever you stop.
Like Lee said, never lug the motor.
Jim do you think I will be able to get away with 14:1 on my ZRX motor without adding a little booster to each tank?
Teddy some 110 mixed with 93 might be the order of that day..
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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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Shane661
Needs a life
Posts: 11494
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posted March 15, 2010 06:49 AM
Edited By: Shane661 on 15 Mar 2010 14:51
I think the Stage 1 also adds some CNC porting, and additional cost, but Jim can elaborate more on that...
I hope to send him one of my spare heads very soon.
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SteddyTeddy
Pro
Posts: 1664
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posted March 15, 2010 06:50 AM
I'm hoping at worst I can just carry a bottle of booster around with me. It's been fine at 13.5:1 so hopefully the extra 1/2 point wont make it so it's not streetable.
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smokinZX14
Needs a life
Posts: 10197
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posted March 15, 2010 06:56 AM
Jim can you give us the full out the door price on your CNC stage one package ...?
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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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Nelson Taylor
Zone Head
Posts: 927
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posted March 15, 2010 12:10 PM
Interested in the conversation...
Where are you located Jim
I need some contact information..
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Best #'s
1.54
4.03
6.02 @ 121mph
(Stock Wheelbase) 2006 ZX14
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KZScott
Needs a life
high on speed
Posts: 7235
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posted March 15, 2010 02:34 PM
http://competitioncnc.com/
Competition CNC
98 Falls Ave.
Oakville CT. 06779
Phone: 860.274.0631
Fax: 860.274.0986
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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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