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I have been thinking about doing up my Z with new cams, port/polished head, and 13.5 to 1 piston. My question is this. If I do all of this and then switch to the DRZ thinner base gasket thus increasng my compression close to or even 14 to 1 will the bottom end hold it? Will I end up bending the rod or busting a crank? Another question is how well will the head gasket hold up to that abuse and what about the starter? Does the exhaust cam remove the decompression deal?

So many questions and so much power to build up. And the over time to pay for it all, YIKES!

jakhammer
 

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14:1 is kinda high, but you should be ok with the right fuel. Make sure the guys making your piston know you are dropping the head down closer or your valves might hit.
Is anyone with a DRZ running this combo? Look on thumpertalk.com.

The exhaust cam gets rid of the decompression thing. With as much compression as you are talking about you might need a stronger battery to crank it. I've heard others with lower compression say is cranks just fine with the hotcams and no decompression thing.
 
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