Members with 74 1.8, information needed for history of cars Options

[wonkipop]

@StarBear & @wonkipop want to hear from members who own 1974 1.8s.
to assist with a topic in originality section of the website.

Cars need to be reasonably original with L jet fuel injection system intact.

If you have the time and can help us with some information it would be great.

information.

1. Vin Date - month and year (no need to post vin numbers if you don't want to). thats the date on the driver door sticker.

2. Karmann plate #. or if you have already done the maths, the day and week of the year the car began production.

3. Image of engine bay emission sticker (lhs above the air cleaner - white with red letters). sticker should say whether it is an EC-A or an EC-B engine and whether it is california + EPA or only EPA.

4. image of engine tune up sticker.
this is the small white sticker that is on LHS engine tin just below fan shroud.
most of them are gone by now, but some engines still have them.

5. image of the throttle body. image of the distributor.
we are looking at the vacuum hose set up between the distributor and the throttle body.

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[wonkipop]

i am as dumb as all you guys when it comes to pollution regs.

but i got curious when mr. b told us there was a california and there was a 49 states car.
because that is not the history i knew commonly told re 1.8s.
the accepted version is all 1.8s were 50 state cars.

mr. b popped up his sticker.

his theory was that an EC-A was 49 state.
and an EC-B was california.

but thats not so. the stickers prove it.

the only thing i can find of any real substance is that california demanded significantly lower NOx emissions for 1974. and that would not show up in the standard smog tests of the time. they measured CO, CO2 and HC at the smog test. thats the smog test where you drove your car in and they stuck the probe in (this won't hurt a bit (IMG:style_emoticons/default/blink.gif) )

but where NOx etc got properly analysed was in a much more serious test the manufacturers had to do. that test involved pulling a car off the production line at intervals and testing it against data already lodged with the EPA and CARB.
technically what EC-A and EC-B mean is not engine type but engine test - at least for the EPA etc.

so thats what i know.

i was once a geek. i am returning to my childhood. its probably a sign of senility.

but its kind of interesting since the 1.8 is the first serious smog engine.
and they did it without too much choke down stuff on it.

i've certainly made my self learn about double vac distributors and its given me a bit of a sense of what is different between an EC-A and an EC-B.

my theory is they are equal in emissions for the purposes of the 1974 tailpipe smog test and certification.
they both retard at idle to get NOx down.
so long as CO/CO2/HC etc measured fine at the smog test the california authorities would have said the car was in tune and passed.
even though they were not actually directly measuring NOx.

but they behave differently at cruise and when you go to stamp the power while you are already at cruise.

the ones with the vac advance should be advanced well beyond what the mechanical advance does on distributor. thats going to be great for fuel economy. but its not going to be so great for instant bright throttle response if you plant the foot while already at cruise?

someone with a better feel for how all the vacuum advance stuff worked might know better?