There is a similar problem with the VG30E or maybe
it was the rocker arm mechanism. Usually solved with
more duration to compensate for less valve lift like
in "production" racing engines.
Thomas
Gordon Glasgow wrote:
> I heard the valve angle and placement was such that you couldn't go much
>bigger
> on the cam without the valves coming in contact with each other.
>
> Gordon Glasgow
> Renton, WA
>
> > -----Original Message-----
> > From: owner-datsun-roadsters@autox.team.net
> > [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Jim Cawrse
> > Sent: Wednesday, March 06, 2002 6:07 AM
> > To: vlaury@earthlink.net; bholland@hayes.ds.adp.com;
> > datsunmike@nyc.rr.com
> > Cc: datsun-roadsters@autox.team.net
> > Subject: Re: going to look at engine, need advice
> >
> >
> > For all:
> > From talk on the 510 list the NAP-Z is designed
> > especially for low emissions and no one has
> > ever developed any go fast parts for it.
> > I know personally of one in a pickup that
> > still runs fine with over 200K, so even though
> > it might never be fast, it might be durable.
> > You would think there would be performance
> > improvements, it has a cross flow head and all.....
> > Just my 2 cents, and not speaking from any
> > personal experience.
> > Best Regards,
> > Jim
> > Chesapeake Va
> > 67 roadster
> > 72 510 sportwagon
>
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