RZ 350 cylinders

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Aug 11, 2007 | 12:56 AM

#11

Speedy2222

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RZ 350 cylinders

no.. porting is the permanent removal of material from the jug/head ports to increase airflow to improve performance... changing the size of an exhaust port while the engine is running is a powervalve...

Aug 11, 2007 | 01:00 AM

#12

kyledvor61

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RZ 350 cylinders

Ok now I get it. So how do the "powervalves" open and close? Is it on the fly like with the trottle or is it controlled by the driver?

Aug 11, 2007 | 01:07 AM

#13

Speedy2222

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RZ 350 cylinders

the ones on the RZ350 have electronic servos that do it.. some other engiens use gears to do it..

Aug 11, 2007 | 01:17 AM

#14

kyledvor61

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RZ 350 cylinders

Electronic servos that control the powervalves according to the throttle?

Aug 11, 2007 | 10:53 AM

#15

Speedy2222

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RZ 350 cylinders

according to the engine rpm

Aug 11, 2007 | 05:45 PM

#16

kyledvor61

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Sounds Sweet!

Aug 12, 2007 | 12:24 PM

#17

fastquad02blaster

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RZ 350 cylinders

Yeah. I thought it was a good idea, considering the other cylinders with powervalves are the fmf and the trex and they cost around $2000. I figured that I would go the cheap route and see what the results were.