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Fw: A Round-Tail engine question/1750 vs 2000 Revving



----- Original Message -----
From: "Daegrigg (Don)" <daegrigg@domain.elided>
To: "Kevin Trent" <trentkc@domain.elided>
Cc: <alfa@domain.elided>
Sent: Monday, October 07, 2002 5:12 PM
Subject: Re: A Round-Tail engine question/1750 vs 2000 Revving


>
> ----- Original Message -----
> From: "Kevin Trent" <trentkc@domain.elided>
> To: <alfa@domain.elided>
> Cc: "Robert Wilkinson" <wilk@domain.elided>
> Sent: Monday, October 07, 2002 1:44 PM
> Subject: Re: A Round-Tail engine question/1750 vs 2000 Revving
>
>
> > On 10/3 back in V8#1186 I opined on the torque superiority of the 2L
over
> > the 1750, in that case an early 1750 without offset piston pins.  Yes, I
> > agree that cams and cam timing make a significant difference in the 2L
> > engine.  I have a two 2L spica injected engines, both set to 1750 cam
> > timing, one with 1750 cams, the other with Euro 10548 cams, and both rev
> to
> > 7k with nooooo problem.  More data points - I have the early 1750
> mentioned
> > above and a 2L, both with webers and marelli plex ignition,  and both
> > carrying an 11 mm 300 degree cam intake and Euro 10548 exhaust cam set
on
> > 102 degree cam timing I&E.  That 2L revs to 7K better than the slug 1750
> in
> > addition to loads more low end torque.
> >
> > file://kct, Powell, TN
> >
> >
> Kevin,
>
> Sounds like you have a lot of knowledge and experience with the 1750 and
2L.
> I think most of us have experience with the "stock" cars that have not had
> the benefit of special parts/knowledge.  On that basis, my comment about
the
> 1750 vs the 2L is unchanged.  My first (and only) 1750 was a 69 GTV.  It
had
> great low end torque and I remember chirping the tires just because it was
> the first Alfa I owned that could  (two Giuliettas, one 2600, one Berlina
> 1600 before).  Since then, I've had two "standard"  SPICA cars, and one
> Bosch 2L.  Perhaps its the exhaust, cam timing, etc., but these cars are
> just not as happy over 4K even though they can rev much higher.
>
> Cheers,
>
> Don
>
> > At 05:42 PM 10/5/02 +0000, you wrote:
> >
> > >Date: Sat, 05 Oct 2002 08:33:46 -0500
> > >From: Robert Wilkinson <wilk@domain.elided>
> > >Subject: Re: A Round-Tail engine question
> > >
> > >I've never driven a 1750, but since the introduction of the 2000 the
> > >superior revving of the 1750 has never been disputed.  In the Alfa
Owners
> > >of the time, 2000 owners were advised to advance their intake cam, or
> > >replace their cams with 1750 (or, more recently, Euro 2000) cams.  This
> mod
> > >wasn't mentioned in the hypothetical comparison that started this
thread.
> > >I'd like to hear the group's collected wisdom on the merits (if any) of
> > >this kind of swap.  Presumably, the 2 liter cams were introduced, as
was
> > >the engine, as a smog measure, not simply to shift the power band
> downward.
> > >  Will the 1750 cams restore the "likes to rev" nature of the 1750
> without
> > >too much loss of that beautiful torque of the 2000?  With, without
Spica?
> > >
> > >Robert Wilkinson
> > >72 Spica Spider
> > >
> > >The 1750 engine always seemed to enjoy revving whereas the 2L seemed
> > >uncomfortable over about 4000 RPM.  For "feel" the 1750 gets my vote.
> > --
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