Since my attempted threadjack elsewhere fell on deaf ears, I would like to know if anyone can help me understand the following:

Why are the following cars which will gain power from the ECU allowance classed at a lower weight per HP than similar cars that will NOT gain power from the ECU allowance?

The Golf IV is: 20.4 lbs/hp in STOCK form at spec weight
The Golf III is: 20.4 lbs/hp in STOCK form at spec weight
The Golf II is: 21.7 lbs/hp in STOCK form at spec weight
The Golf I is: 23.1 lbs/hp in STOCK form at spec weight

Doesn't the above seem bass ackwards?

If all of these cars were classed using the same process, how did the older/lower tech/fixed engine management cars end up with worse weight/hp numbers than the newer cross flow headed/ ECU enhanced cars?

Assuming CIS single side headed cars could make the same power as the later cars, is there a logical reason why, at a minimum, all of these cars are not spec'd at the same 23.1 lbs/hp?

Shouldn't the cars that can take advantage of the open ECU be xx percent heavier per stock hp than carb and CIS cars that can't?

The better I can understand the process, the fewer letters I'll have to write!