stef12rr
Expert Class
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posted October 12, 2006 02:04 PM
traction control how can we do it
honda as put a traction control on a st1100 the concept is simple 1 sensor on rear wheel et front wheel attache to a computer and when the rear wheel turn faster , it send a signal to cut 2 injector to take somme HP on the motor and put the grip back.
i wonder if i find the traction control of st 110 and put it on the zx 12 if it will work
What do you think
and by the way Y2KZX14R i am going to put a 1270 cc and not a 1375 but with the window and the work around the valve do you a much HP a 1270 cc should make ?
  
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supra5677
Pro
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posted October 12, 2006 02:08 PM
thats easy between 195 and 200 std. Degree cams to 105/103. Maybe 106/103.
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stef12rr
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posted October 12, 2006 05:11 PM
200 the magic number
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zx12adam
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posted October 12, 2006 07:00 PM
That's great as far as preventing slip in a straight line, but when it comes to cornering the front tire has a different profile from the rear, so there is a slight variation in speed between the front and rear when cornering which changes from tire to tire. Also the speed of the computer is important, it has to be fast enough to detect the slightest amount of slip(with a correction factor for the different profiles) and fastest enough to do the right thing by the right amount.
Believe it or not but GP bikes have been developing trac control since the early 90's it hasn't been effective until late 90's-2001 or so during the end of the 2strokes, turns out trac control on the 4 strokes was easy by comparison(by GP standards). Motec makes an engine management system with trac control you can fit to the ZX12, with 18 settings no less. But it's gonna cost ya($80,000?)
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CBR1000RR
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GUNNER
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posted October 12, 2006 07:15 PM
I already have it on all my motorcycles.....................It' called my right wrist  and a seat of the pants feel for what my tires are doing at all times. I have a super computer located in my skull that does thousands of computations a second and tells my right wrist what to do next. And at the same time controls my optics.. Motec aint got shit on that at any price 
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blitzkrieg
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posted October 12, 2006 08:33 PM
Fucking Gunner. Took my thought's away on that.
You want traction control, buy a Harley. You buy an open class hyperbike perk up and ride it for what it is Sparky.
It's a sportbike not a damn GoldWing. 
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GUNNER
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posted October 12, 2006 09:06 PM
quote:
Fucking Gunner. Took my thought's away on that.
Guys like us think alike Bob I don't want anything controlling shit on a motorcycle I'm riding. That bitch crashes I want it to be my fault
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Y2KZX12R
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posted October 13, 2006 04:19 AM
 Edited By: Y2KZX12R on 13 Oct 2006 05:20
From what I've seen the 1270's are usually in the high 180's to mid 190's for SAE HP.
The work around the valves in the chamber increases flow at low lift numbers. But more importantly it reduced turbulance and stablized the manometer on the flow bench.
The block windows? I dont know what if anything you would see on the dyno. But it reduces pumping losses.
Its all splitting hairs.
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stef12rr
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posted October 13, 2006 05:04 AM
For what i undersants if you reduce pumping = friction in a way so the engine should run a little faster in reving, and i don't think i will do 3 window only 2 the center on i will keep it intact because both piston are going down a the same time.
what i should do make the window before sending my cylinder for nicasil? i think it will do a better job and prevent craking
thank
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stef12rr
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posted October 13, 2006 05:05 AM
thank M. Magic wrist lolll
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Y2KZX12R
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posted October 13, 2006 07:06 AM
Your right they move together, but Its easier to mill all three in one operation, otherwise its 2 seperate operations and takes twice as long to do. I dont see why there would be any drawback to doing all three.
If you have the opertunity mill the windows first and then have the block plated. But milling them after isnt a problem at all either.
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Y2KZX12R
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stef12rr
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posted October 14, 2006 08:32 AM
ok thank Y2KZX12R
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stef12rr
Expert Class
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posted October 15, 2006 04:53 AM
I Guys If you hear about a kit of traction control let me know
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GUNNER
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posted October 15, 2006 06:44 AM
quote:
I Guys If you hear about a kit of traction control let me know
Right hand and left side of the brain.......... Oh and let's not forget both Ass cheeks
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stef12rr
Expert Class
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posted October 16, 2006 03:10 PM
ok good i will no forget
Right hand and left side of what
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ridgeracer
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posted October 16, 2006 03:56 PM
I have to agree with Gunner. Traction control ranks right up there with linked front/rear braking as things I don't want on my sport bike.
Having said that I think it would be nice if the bike mfgs followed the lead of some of the sports car mfgs. and put some kind of street/track mode switch on the bikes so that when you want to relax or commute to work in the rain you can just throw a switch to tame the beast but still have the option of full control on your weekend rides.
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ridgeracer
Pro
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posted October 16, 2006 04:10 PM
BTW you don't need to measure the front wheel and compare it to the rear to detect slip. All you need to measure is rear wheel acceleration. Just as ABS brakes detect a rapid deacceleration and reduces braking a traction control would detect a rapid wheel acceleration as onset of wheel spin.
The current ECU hardware could detect a rear wheel acceleration increase in much lease than a quarter revolution of the rear wheel. In fact the ECU already does something like that with the engine.
Many of you may not be aware of this but if your moving down the road at say 60mph and pull in your clutch without reducing your throttle the engine revs will not suddenly shoot up the way they would on a carburated bike.
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MAXIMUS
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posted October 18, 2006 05:55 AM
quote:
quote:
Fucking Gunner. Took my thought's away on that.
Guys like us think alike Bob I don't want anything controlling shit on a motorcycle I'm riding. That bitch crashes I want it to be my fault
+1 on that
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