14k redline?? - Kawasaki ZX-10R.net
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post #1 of 30 Old 01-25-2011, 09:53 AM Thread Starter
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14k redline??

Just curious to see if any of yall have bumped your redline up to 14k and is your head stock or worked....I see many people getting there redline bumped up to 13,650 when they get there ecu flashed but anyone go higher?? The kit race manual says you can do 14k but i'm not sure about reliability ...
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post #2 of 30 Old 01-25-2011, 10:13 AM
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post #3 of 30 Old 01-25-2011, 11:56 AM Thread Starter
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post #4 of 30 Old 01-25-2011, 02:25 PM
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post #5 of 30 Old 01-25-2011, 02:33 PM
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I'm revving to 13,700 on stock valve springs
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post #6 of 30 Old 01-25-2011, 02:59 PM Thread Starter
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I'm revving to 13,700 on stock valve springs
Whats the stock redline on the gen 4?
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post #7 of 30 Old 01-25-2011, 03:19 PM
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13,700 :-)
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post #8 of 30 Old 01-25-2011, 03:54 PM
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Without port work and cams, there's no power to be gained by spinning that high on a Gen 1-3.

I've run my NA motor to 14K with HD valve springs and stock rods with no issues, as long as your clearances are correct you'll be fine. 55mm stroke keeps piston speed within reasonable limits.
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post #9 of 30 Old 01-25-2011, 04:08 PM
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Quote:
Originally Posted by dsabat View Post
Without port work and cams, there's no power to be gained by spinning that high on a Gen 1-3.

I've run my NA motor to 14K with HD valve springs and stock rods with no issues, as long as your clearances are correct you'll be fine. 55mm stroke keeps piston speed within reasonable limits.
What about if you play with cam timing...

Last edited by KIRK_ADAMS; 01-25-2011 at 08:34 PM.
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post #10 of 30 Old 01-25-2011, 07:26 PM
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Quote:
Originally Posted by dsabat View Post
Without port work and cams, there's no power to be gained by spinning that high on a Gen 1-3.

I've run my NA motor to 14K with HD valve springs and stock rods with no issues, as long as your clearances are correct you'll be fine. 55mm stroke keeps piston speed within reasonable limits.
Really?

My zx10 has NO over rev. It makes peak power on the rev limiter. The only reason it doesn't make more power is because it runs out of rev limit.
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