Z400 piston hp

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Nov 1, 2004 | 10:46 PM

mucky

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Z400 piston hp

does changing to a high compression piston give more HP

Nov 2, 2004 | 12:27 AM

z838mx

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Z400 piston hp

I dont know but I have heard that the only thing you gain is low and mid renge torque. I might be wrong I built mine with the high comp piston and it does well.

Nov 2, 2004 | 01:26 AM

13inc

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Z400 piston hp

Yes you will gain by adding compression but, your fuel requirements will change also.........

Nov 2, 2004 | 03:29 PM

scrambler123

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Z400 piston hp

yes it will increase the horsepower

Nov 2, 2004 | 07:51 PM

bulldogz400

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Z400 piston hp

Bout a 2.5% HP increase for every point on compression (12.5-13.5 for example), and it will rev faster.

Scrambler- Did your bro ever get that 434 kit in?

Nov 5, 2004 | 03:56 PM

scrambler123

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Z400 piston hp

not yet he's a little low on $$

Nov 5, 2004 | 04:50 PM

polarsport500

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Z400 piston hp

would a 11:1 or 12.5:1 compression be better for a 440?

Z400 piston hp

Z400 piston hp

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