Was there much difference between the Canadian and US model early Camaros/Firebirds. I don't think the Carburetor was computer controlled but was there any other difference. Had they the EGR valve,charcoal canister and there rest of the emissions, stuff same as the US models. The reason I ask is that I am looking for a parts catalog for the 1982 model year. I have been looking around and the the US ones are very expensive and most are in terrible condition. The Canadian ones are a lot more affordable and in nicer condition.

Can anyone help me out here,
Thanks.

 

I not an expert, but I am Canadian so I can try to answer some of your questions.

The instruments in Canadian cars will have the predominant speedo scale and the odometer in metric since the mid seventies.

Daytime running lights were standard since 1990.

EGR, AIR, evap and cats have been in effect here same timeline as US cars.

Carbureted Third gens did not use feedback except the L69's for some reason. The Canadian L69's I've seen have a MAP and O2 sensor.

 

Ya I have seen a few Canadian F-body's and most have had A/C delete.


Dave

 

Nah, logically you would think the Canadian cars do not have A/C, but in fact most have it. Too bad, it's really quite unnecessary for a toy car.

 

Okay so it should be more or less the same parts used. I won't worry about the instruments, hardly need part numbers for them. The only thing is I need part numbers for at the moment is the emissions stuff.

How come the Canadian models didn't use the feedback Carburetor. Were the emissions requirements in Canada not as strict as in the US at the time.

Thanks.

 

You answered your own question correctly. Canada's emissions standards weren't as strict as the US.

The Canadian cars typically ran vacuum controlled(otherwise known as Open-Loop)carburetors and distributors , no exhaust AIR injection and usually the old restrictive pellet style catalytic converters.

The computer controlled feedback system was a $400 option but few ordered it. The HO versions of the V6 and V8 required it as their high output ratings were designed with the computer system as part of it. Obviously the 4-cyl and V8 Crossfire engines also required the computer as they're fuel injected.

Canada could also still get the 3-speed non-overdrive transmission on V6 and V8 cars after 1982.

 

I'm not exactly sure why the Canadian cars did not use feedback carbs. My guess is that the extra cost and complexity in a cold climate back in the days when automotive computers were in thier infancy wasn't worth the risk of having warranty problems when there were not required to meet federal emissions.

I was an apprentice in the late 80's, and I rebuilt plenty of Quadrajets, none of which had a TPS or those fancy metering rods.

 

OK......I have a question that you guys may know. If you guys do, please help me out as it pertains to my car.

Since the canadian firebird does have open loop carbs with a vacuum advance and NO ECM, does the canadian 4-barrel quadrajet carb have a seal on it to not allow access to adjust the fuel/air mixture?

I think the American carb has a protection seal, but that is because the computer command(ECM) controls the fuel/air mixture.

 

Idle air mixture screws were capped on Canadian cars. Likely reason is that the throttle base could be the same piece whether carb was feedback or not and it's usually more cost effective to use the same piece. I hacked out plently of those caps back in the day.

 

Quadrajets had tamper resistant mixture screws since mid-1970's. In fact, they had plastic "limiter caps" installed around 1970 to prevent wannabee mechanics from adjusting the mixture screws too much.

 

These "caps" that you guys are talking about, are they easily removed, or is it something that needs to be broken/ forced off?

And also, do you know if the vacuum advance for canadian 82 firebird trans am is adjustable?

And, also, what do you guys think about adjusting the fuel/air mixture for better performance?

 

None of them have A/C delete, because A/C wasn't standard on thirdgens. The A/C option is less common on Canadian cars, though.

 

They have to be cut out of the base.

Non-adjustable

The idle mixture screws only affect the idle mixture.

 

I haven't seen any of the early 82-84 Canadian Trans Ams with A/C. Here on the West Coast, I doubt if anyone would have ordered it as you just don't need it. I think it was standard on later GTA's though. My 90 has it.

 

My L69 85 Iroc is a Canada Spec car. Spent its life in Miami Florida. It had a Computer controlled carb. and still has AC. Second owner removed the CCC carb, but I still have it. have the original motor as well, sitting beside the car now. It had a AIR pump but the original manifold was repalced so I am unsure of the EGR. Mileage was in Km's, as was the the speedo. All gauges were in Celsius, not Fahrenheit.