RE: A Round-Tail engine question

["Richard & Julie Arnold" <rarnold@domain.elided>]

>Robert Wilkinson
>Sent: Saturday, October 05, 2002 8:34 AM

>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.
--

My 1976 Spider (Nov '75) has been in my family since 1978.  It was
passed on to me in '97 after a thorough engine and Spica overhaul.  My
dad had the cam timing adjusted.  My guess is he had them done like Pat
Braden and others suggest.  My point is this:  Since the overhaul, this
car WILLINGLY revs to 8,000 rpm.  In fact it caught me off-guard upon
discovery. It happened so quick I was worried I had damaged something.
Since, I only rev this high when we go for an Italian tune-up.  Who
knows, my dad may have had something else done but I don't think so.
Admittedly, the '76 does not have the bottom end that my '73 Spider has
but the '73 runs out of power at about 5,000 rpm.

Regards,
Richard
1973 Spider (good body, tired engine)
1976 Spider (rusty body, amazing engine) 
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