[Roadsters] long rod (r16) stroker

[Gordon Glasgow]

Okay, here are some measurements (in grams). I'll verify them tomorrow when
I'm not so tired.

			R16		U20
		   --------    --------
Piston w/pin      580         652
Rod               798         899

Just because the pin height is higher in one piston doesn't necessarily mean
the piston is shorter (and thus lighter).

Gordon Glasgow

-----Original Message-----
From: Daryl Smith [mailto:drlsmith at dccnet.com] 
Sent: Wednesday, April 08, 2009 11:23 PM
To: Gordon Glasgow; 'Tim Waltz'; datsun-roadsters at autox.team.net
Subject: Re: [Roadsters] long rod (r16) stroker


----- Original Message ----- 
From: "Gordon Glasgow" <gsglasgow at comcast.net>
>
> A longer rod will also weigh more than a shorter rod, while the piston
> weight will change very little (if at all). This may reduce the ability of
> the engine to rev, partly offsetting the gains from the first factor.
>
> Gordon Glasgow

Good explanation Gordon.
As far as the rods go though I was under the impression that the R16 rod was

lighter than the U20 rod, and that the shorter piston
(shorter pin height because of the longer rod) should save a few grams 
also....??? The pistons in this case would be about 8 mm shorter in this 
case for the long rod stroker. I would expect a reduced weight with that 
much difference in pin height.........

Anyone know what these rods weigh?

Daryl