Gen 1: 2004-2005 Dave's Supercharger project - Page 2 - Kawasaki ZX-10R.net
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post #11 of 43 Old 10-11-2011, 11:14 AM
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ok i'm really curious...how much power can you safely throw at these STOCK motors before they will blow? i need to do some research.

2004 Zx10-R - 10" Mcintosh swingarm, level one racing slip on, -1/+5 sprockets, PCIII - stay tuned for track times

2005 Zx10-R - strapped, lowered, yoshi slip on - 10.219 @ 138.68 with shitty 1.827 60' - Sold
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post #12 of 43 Old 10-11-2011, 11:19 AM
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ok i'm really curious...how much power can you safely throw at these STOCK motors before they will blow? i need to do some research.
The A&A kit says a stock motor will work so should be good for 220 hp


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post #13 of 43 Old 10-11-2011, 12:29 PM
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The original prototype bike is now running 11psi on bone stock internals. As long as you are only doing street riding or dragstrip passes, these engines are more than up to the task. However, if you push it (aka track days or top speed runs, especially in hot weather), the first thing to go is the #4 piston (check the path of the coolant in the service manual sometime -- poor old #4 is left out to dry, so to speak), so an aftermarket set of pistons is highly recommended if you intend on doing that type of riding.
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post #14 of 43 Old 10-11-2011, 04:34 PM Thread Starter
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Took .150" off the crank. It was a little off and my ready access to a lathe allowed me to be particularly anal retentive about that detail.
You did a great job piecing it all together.

What's it take to run 11psi? Bigger crank pulley? Any idea what hp that guy is making ?
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post #15 of 43 Old 10-11-2011, 06:18 PM
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If the calculations are right, the pulleys max the RPM capabilities of the charger....and is supposed to get 10psi....as those pulleys are A&A's

2004 ZX10R-few mods here and there......
and even made more Evil by Woolich.
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post #16 of 43 Old 10-11-2011, 06:34 PM
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i hate you. and i mean that with love.
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post #17 of 43 Old 10-11-2011, 07:12 PM Thread Starter
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If the calculations are right, the pulleys max the RPM capabilities of the charger....and is supposed to get 10psi....as those pulleys are A&A's
awesome. I haven't taken it full throttle on the highway yet, i figured it was 7-8psi.
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post #18 of 43 Old 10-11-2011, 07:41 PM
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What's it take to run 11psi? Bigger crank pulley? Any idea what hp that guy is making ?
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If the calculations are right, the pulleys max the RPM capabilities of the charger....and is supposed to get 10psi....as those pulleys are A&A's

The 26/28 combo which is on this kit spins the blower to its maximum rated rpm, which should provide ~8.5psi peak. To get to 11psi, we ran a 28/28 combo, which overspins the Rotrex by 10,000rpm. No dyno charts of the bike, but I do have datalogs that show it being significantly faster than it was before -- I fully expect it to be in the ballpark of 245-250whp (while the internals are stock, the head and cams are not ).
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post #19 of 43 Old 10-11-2011, 07:55 PM
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That's so sick!!! Who's got a kit out for a gen 2? I'd trade my left nut , or a kid for that! Lol, j/k of course...or am I?


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post #20 of 43 Old 10-11-2011, 08:50 PM Thread Starter
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The 26/28 combo which is on this kit spins the blower to its maximum rated rpm, which should provide ~8.5psi peak. To get to 11psi, we ran a 28/28 combo, which overspins the Rotrex by 10,000rpm. No dyno charts of the bike, but I do have datalogs that show it being significantly faster than it was before -- I fully expect it to be in the ballpark of 245-250whp (while the internals are stock, the head and cams are not ).
Do you know how fast people are over spinning these rotrex blowers? Im from the world of F series prochargers and I know those things can spin quite a bit past what procharger tells you they will. I guess throwing 250 at the wheels with a blower 'rated' at 200 says a lot though.
If he is pushing 11psi with a good head and cams, thats going to be ~13-14+ on a stocker then I would assume... I'll have to figure out how to log some IATs when I'm ready to step it up.
Does he log IAT at all?
I wish that stupid power commander hub could log more than 1 extra input

Last edited by TrendSetter; 10-11-2011 at 08:53 PM.
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