YES!! After spending good bucks rebuilding my U20 I like to see this kind
of email supporting these one of a kind engines.
Jeffrey
>From: "Gordon Glasgow" <gsglasgow@comcast.net>
>Reply-To: "Gordon Glasgow" <gsglasgow@comcast.net>
>To: "Victor Laury" <vlaury@earthlink.net>, "jtorres67"
><jtorres67@sbcglobal.net>, <datsun-roadsters@autox.team.net>
>Subject: RE: L series engines
>Date: Mon, 23 Jan 2006 22:02:52 -0800
>
>Not trying to start a flame war here, and I admit the L-series is a good
>design, but...
>
>Given equal build specs, an L-18 will not make more power than a U-20. The
>big difference is in the head and valves. The stock U-20 valves are
>actually
>larger than the valves in the infamous FIA heads for the L-series engines.
>Even if you put a U-67 head off an L20B on an L-18, it won't flow like a
>U-20 head.
>
> Intake Exhaust
> ------- -------
>L18 SSS head 42mm 35mm (same as L20B U-67)
>Early FIA 45mm 35mm
>Late FIA 44mm 36mm
>U-20 46mm 36mm
>
>The guy that does my head work told me the U-20 was the best-flowing
>non-crossflow head he had ever seen. In fact, he had a Jensen-Healey
>twin-cam head in his shop at the time, and the U-20 was just slightly below
>it in flow rate all through the range.
>
>Everything else in a race motor can be equalized, and the cost equalizes
>along with it. You don't run stock pistons and rods in a race motor. So
>custom pistons cost the same regardless of whether they are L-series or
>U-20. Same with Carillo or Pauter rods. And machine work is machine work.
>The main cost difference is in the timing chains, gears and tensioners. But
>if you're building a $10-15K race motor, that's minor.
>
>Gordon Glasgow
>Renton, WA
>
>
> > -----Original Message-----
> > From: owner-datsun-roadsters@autox.team.net
> > [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Victor Laury
> > Sent: Monday, January 23, 2006 4:41 PM
> > To: jtorres67; datsun-roadsters@autox.team.net
> > Subject: Re: L series engines
> >
> > An L18 is a high performance motor that can easily be developed
> > to exceed any race built U-20.
> >
> > Victor
> > Downtown Los Angeles
> > 70 SRL
> > 70 521
> > 71 521
> > 72 240Z
> > http://www.fotki.com/datsunvic/
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