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

["Daegrigg (Don)" <daegrigg@domain.elided>]

----- 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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