Smokey Yunick thinks you should run the longest rod you can fit in the
engine (and he has some fairly compelling evidence to support that claim).
The NASCAR guys have experimented with it and come to the same general
conclusion. I can't point to the exact issues, but I remember seeing some
articles in Circle Track about it a while back.
Dave Coleman made the "1.70:1 is optimal" claim in Sport Compact Car a while
back, but their online archives don't go back far enough.
I searched Google on "automotive engines connecting rod length" and got back
over 2000 hits.
Gordon Glasgow
Renton, WA
www.gordon-glasgow.org
> -----Original Message-----
> From: owner-datsun-roadsters@autox.team.net
> [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Thomas -
> Sweden
> Sent: Thursday, January 23, 2003 1:22 PM
> To: datsun-roadsters@autox.team.net
> Subject: Connecting rod length (somewhat OT)
>
>
> Hey list. I have seen somewhere an ideal connecting rod length
> based on the stroke length. I dont know if it was 1.70:1 or
> something else but it was in one of those Datsun "Hot Rod" books.
> Example if the rod center to center is 133 mm the stroke should
> be between 78 to 79 mm. Anybody who knows any reference
> in books or on the net?
>
> T I A
> Thomas
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