Big bang - Kawasaki ZX-10R.net
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post #1 of 12 Old 04-02-2005, 09:47 AM Thread Starter
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Big bang

So enlight of the fact that the racers are using an engine with a modified crank and cam shafts to rearrange the firing order so that they get better power control out of the turns who here will be the first to build a big bang motor.

Just a dumb question for all of you mod happy individuals out there .
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post #2 of 12 Old 04-02-2005, 10:26 AM
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I hear most Yamaha motors tick before they make a big bang.

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post #3 of 12 Old 04-02-2005, 11:35 AM
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Yeah ask the R1 contingent about 'big bang' stuff.

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post #4 of 12 Old 04-02-2005, 12:25 PM Thread Starter
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Nakano continued to focus on Kawasaki's new big bang Ninja ZX-RR engine, which only made its public track debut at the February Sepang test in Malaysia.

http://www.getyourrideon.com/article...etail&aid=2502

several bits and peaices about it on the net google will find them.

Basically it gives better traction than the normal engine setup for better corer exit
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post #5 of 12 Old 04-02-2005, 05:31 PM
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I've actually heard of UK Superbike teams experimenting with big bang cranks, and timing.

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post #6 of 12 Old 04-02-2005, 06:22 PM
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I'd like to hear a good explanation of what exactly it is.
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post #7 of 12 Old 04-02-2005, 06:26 PM
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I have not heard too much from the Japanese bikes about the specifics. Ducati's original plan with their V-4 was to have each of the paired cylinders fire at the same time instead of having 1 paired cylinder on the power stroke while the other was on the exhaust stroke.

Don't confuse me with facts, my mind is already made up.
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post #8 of 12 Old 04-02-2005, 06:32 PM
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So it's more than one cylinder firing at a time? Interesting.

How does that improve traction? It seems like it would do the oppisite.
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post #9 of 12 Old 04-02-2005, 06:38 PM
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The thinking is that the greater time between firing pulses give the tire an opportunity to get hooked up. Harold Eckl (Kawasaki MotoGP team manager) has said he doesn't think there is really anything to it. He felt it was just in the riders head. He did make that statement before they had tested one and the Team Green riders went faster with the "Big Bang Motor" even though it is supposed to be a little down on power to the "screamer" motor that they used previously.

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post #10 of 12 Old 04-02-2005, 08:49 PM Thread Starter
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As i read it the tire actually "feels" the pulses of the engine and even though the pulses are bigger it has a longer time span inbetween to regain traction.
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