[Roadsters] long rod (r16) stroker

[Daryl Smith]

----- Original Message ----- 
From: "Eddie" <eddietude at socal.rr.com>
Subject: Re: [Roadsters] long rod (r16) stroker


>I thought the longer rod also pushed the piston farther "up" the cylinder 
>wall, thus compressing the gas MORE... and that's where the power gain came 
>from...
>
> Isn't that also the case?
>
> Eddie

Actually, No, it only goes down further......  ;-)

By changing the geometry (rod length and piston pin height), the piston can 
stop higher, lower, or at exactly the same height in a stroker motor as a 
stock motor, while overall travelling the extra distance of the stroker 
crank. This can be used to increase/decrease compression ratios and 
squish/quench clearance (distance between top of the piston and the head). I 
would try to bring the piston to block level or slightly higher to maximize 
the squish/quench, as long as it doesn't push the compression ratio too 
high.

Daryl