Need help understanding VW classifications
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:D!
IMHO open ecu is not worth much
I think you over estimate what the open ECU wil do.... Most of us have already reprogrammed chips and have been running them... So 95% of the gain that is avaible has already been taken advantage of.
The restriction for the newer cars is air flow related and not fuel. An open ECU will not gain you more air flow just better control of the amount of fuel added to optimize burn.... which you can already do with a re-programmed chip.
But getting an extra 5% is what some people will do.
Just my humble opinion - I am also not an expert at engine managment.
B