the canadian cars don't have AIR right? (mine doesn't) so does that mean that a canadian LG4 would be faster than an american LG4? I am wondering this because I always see "removed AIR" in people's mods lists? any input??

:lala:

 

The Canadian ones also got iron intakes rather than aluminum ones.

 

are there any other differences?

 

Blame Canada!!

 

Canadian cars do come with AIR.

We also get to drive at 80 rather than 55.

 

Yeah, in KPH.

 

What,.. the american ones have aluminum intake manifolds? are there any available down around Seattle WA? I wouldn't mind ditching my cast iron one for an aluminum one..

Ya I have AIR. was gonna ditch it.. but it's only a matter of time when they have testing here. so I'm gonna leave it all in.

 

I know the LG4s got aluminum intakes, I got one still on my 350, I'm looking into the Edelbrock EPS.

 

I think the AIR pump started with the Canadian Camaros in 1987.

The only polution gear my 86 305 had was a catalytic converter. So I suppose it had 5 or 10 more hp than an American one.

 

My LG-4 had an iron intake, and no AIR tubes. No smog pump, whatever. Hell, I've never even seen one. No computer either.
This is an '83.


It did have an EGR and a cat, though.

 

No computer, no knock sensor.

No knock sensor, 8.5:1 compression.

8.5:1 compression, less power.

 

GM was REALLY inconsitent on what emission equipment came on cars brought into Canada. Some were identical to American "49 State" cars, others were treated as "Export" and had virtually nothing.

This was one of the reasons AirCare was delayed in implementation in BC. They discovered that GM (and many other manufacturers) did the same thing .... give Canada a "mish-mash" of emissions equipment until the late 80s. This is why AirCare initally gave a lot of leeway to early 80s cars and slowly "turning on the screws" to make if virtually impossible for them to pass AirCare.

FYI, I had an 1982 HO V6 in an X-Body that DID have a computer and 49 State emissions equipment. While another that I STILL own from the early 80s has NOTHING except a cat. And that car was originally owned by a family member and never modified.

 

Glenn,

As for the original post idea, my estimate is that an A.I.R. pump that was at its worst possible efficiency might take a whopping 1½HP at peak RPM - what would your "guesstimate be? I can't see this creating any huge offset in performance one way or the other 0 not even hundredth of a second.

 

canadian cars arent the same as american cars. i know this because i had a bytch of a tiem gettin my car down here. i went to register it and they said i needed a letter from gm saying that it met all us standards. but low and behold, i had to call a place in canada because gm doenst keep records for my car. its an 84 camaro, and the palce in canada told me that my car passed except for the emmisions.saftey was fine.i dont know why it doesnt pass us emmisions, and i dont seem to be able to find out either. so because of this i have to sell my car within 3 years or i have to bring it up to us emmision standards. i think it only has to be up to the standards of what thirds gens were in 84. if any one has any idea where i might find out what i need to do that would be a big help. so too sum it all up, canada and american cars are nuthin like each other

 

THEY HAD EMISSIONS STANDARDS IN 84??? WOW!!!

 

i guess they did, cuz i cAnt keep my car cuz of them.

 

Other than "frictional losses", I'd agree with Jeff. In fact, on the TPI cars, there are settings for the AIR and if you remove it, you NEED to modify the eprom to let it know that the AIR is gone so the Eprom can make the proper "calculations". It's like removing the EGR but not telling the ECM about it causes more problems that it solves.

 

My car is a canadian 87, and it has no pump... only EGR, cat and charcoal canister. And it has that stupid iron intake... Truck manifold my A$$!

I dont know what your smoking, but there is a computer in almost every 81+ vechicle, and all Camaros. It would be to expensive for cheapo GM to drop the computer and the compression.

 

"Almost" being the operative word. Try again. "All" just ain't true. You'd be surprised what GM has changed to save a few coins.

Don't smoke, personally (except tires - smoking them don't cause cancer).

 

Just wallet anorexia.

 

I have an 87 Z28 carbureted(LG4) motor. I took off the egr and still passed emissions with flying colours. I live in Canada and I did the test about three months ago.

 

L03s all have aluminum intakes, regardless of can vs american

You can pass emissions without the AIR pump, just make sure your car is fully warmed up.

 

Hah!

Here in Alberta we don't need no steeenking emmisions testing

 

as long as i keep up my safety equipment: lights, brakes, turn signals, etc, i don't have to worry about emissions. so, basically, i am going to go as wild as i can and still drive it on the street.

remember, it's all fun and games until someone loses an eye. then it's just a game: find the eye.