Twinspark capacity

["Mark Battley" <m.battley@domain.elided>]

<Actually the 164 TS Super still uses the Nord Alfa Twinspark motor from the
75 TS with the <exception of the now larger displacement
<(1995cc vs 1962cc) and steeper port angles. This is the better TS engine of
the two. The older <164 TS which has 2 distributors has the
<older 1962cc engine. But both are 100% alfa blocks and heads.

So when did the Twinspark capacity change in the 164? 1995cc, coincidentally
(or not??), is exactly the capacity of the "old" Fiat DOHC.   

In the case of the 2L twinspark155, it seems (from the data I can find) that
it started with the 1962cc, changed to 1995, then finally got the "new"
(Fiat blocked) 1970cc as in the current GTV/Spider/156/166 models. Is this
correct? When did the capacities change?  Then there was the 1995cc
turbo/4WD 155 integrale which had the "old" Fiat motor..... the current Fiat
2L being a 1998cc 5 cylinder.

Mark Battley
Auckland, New Zealand.

1974 Alfa Romeo 2000 GT Veloce (1962cc)
1989 Fiat Croma (1995cc)

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