I know that!
SR20Di or De.
First was a single point injection, second was already a multi point.
After that we had DE, valve mecanisme was the same than for the GT
150hp.
But the GT had a different intake, a factory header and a different
ECU.
But the cam mecanisme was always the same, cam acting on rocker arm,
rocker arm acting on hydraulique valve lifter, valve lifter opening
valve.(see *.pdf)
For what I read about "roller cam", the cam is acting directly on the
valve.
But I haven't seen such a system in european SR20XX yet.
The only system where cam is acting on valve without the pivot is on
QR engines.
So I don't know what there are talking about!
Any ideas,
Chris - The Belgian roadster
Waiting for better wheater - Having 10 cm of snow again.
----- Original Message -----
From: "Thomas - Sweden" <csp311@telia.com>
To: "The Belgian_Roadster" <belgian_roadster@planetinternet.be>
Cc: <datsun-roadsters@autox.team.net>
Sent: Saturday, February 23, 2002 7:06 PM
Subject: Re: New SR20
> Earlier (P10-P11) Primera engines were different to SR20
> as the SR20 cylinder head was only used on the GT model.
>
> Thomas
>
> The Belgian_Roadster wrote:
>
> > For the SR20 swappers.
> > I read about the new SR20 engine having a new valve mecanisme.
> > I only know B13/N15 and B14/N15 SR20 engines.
> > New Nissan Primera P12(for Europe only) already use the QR20,
which
> > has variable valve timing.
> > Pivot arms have been removed also. Now the cam is acting directly
on
> > the hyd. valve lifter.
> > So what's new on the US SR20 valve mec. They call it roller cams,
> > what's it about?
> >
> > Chris
> >
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[demime 0.97c removed an attachment of type application/pdf which had a name of
IMAGE PRINT.pdf]
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