farm-kid/88camaro

Im in the process of swapping out a 305 for a 350 crate motor. My problem is i have to pass emmissions for a 88 tbi car and i would like to go with a carb. Is it possible to pass with correct tuning on the carb? I would like to have some idea before i go spending money on something that wont work.

Maybe someone from ontario has had a similar experience?

Thanks, Jon



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88'Camaro
305 TBI

FlashGTA

I know Car Craft did a build up similar to yours several years ago in which they actually got better emissions after the swap. The key is good cylinder heads, good carb tuning, the right cam and a really good ignition. I would recommend something along the lines of an MSD. The multiple sparks helps reduce emissions. I cannot say with any certainty you can do it. Emissions are the result of a lot of different components. You might try contacting whomever you are getting the engine from for recommendations on intake, carb, etc. in order to meet emissions requirements.

Ray87Z

My vortec headed, carbed 350 passed the IM240 dyno emissions test w/ a functioning, new Catco 3" cat ($99 Summit) as the only emissions device on the car. I ran the car for the next year w/ no air pump hookup to the cat, and running slightly rich. It basically killed the Cat, and this year it failed. So I swapped the new one from my 86 IROC over temporarily for the test and it passed again, w/ total ease actually. It comes in at just a fraction of all the allowed test figures. (Cleaner than my fathers 94 econo car BTW).

Conclusion? Yeah you can make it pass pretty easily, but if you want the cat to live on there you'll need to have the smog pump hooked up and running properly to feed air to the cat, and avoid running the car overly rich. Or you could just run a gutted 3" cat you got from a junkyard (or a straight pipe) year round except for emissions test time, when you could put your nice clean, new, barely used Cat converter back on for the test each year, then swap back to avoid wearing it out. That's what I'm planning to do now w/ mine...

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Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray

[This message has been edited by Ray87Z (edited March 30, 2001).]

Biochem

I passed last year with ease. This year I have a Holley on there instead of the Q-jet and I may be running a bit richer. The levels are not the problem, I have to pass a visual too. In fact, my levels are higher when I put the stock air cleaner and EGR stuff back on!

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

Grim Reaper

Check Ontario's emission board/laws. Every state and province is different. Some prohibit any such modification (ie switching to carb) even if it can "blow the number", others just make you "blow the number".

In BC, we just require you to blow the number, but our "numbers" are 1/3 of California's. When I was subject to emission testing (before I moved to Kamloops), the NDP Government decided V8s were too much of polluters, so they arbitrarily lowered my emission numbers to less than what a new LS1 in required in California.

Also, you may have "waiver" provisions depending on your year of car. In BC, if you car is made before a certain date in the 80s, if you car does not pass AND its modified, you just have to spend $200 on "repairs" at a "certified centre" and you get a provisional pass. With 1991s, I would have to spend $400. And for 1992s and newer, you would have to spend "whatever it takes to pass"!

So contact you local emission authority and KNOW YOUR RULES! You might be pleasantly surprised...or sadly disappointed.

ihateallmustangs

You have to take the test and u live in Woodstock? Im in Courtland and have never had to take it yet. Go to Canadian Tire and they will tell u what are passable levels for emmisions for your vehicle. or you can try this number to get more info on the drive clean program. 1 800 265 6073.

Ray87Z

What are your allowable emissions Glenn? That's ridiculous that they lower them that much.

You may not have the same kind of numbers, but w/ the dyno emissions test here my limits are 157 for HC (can't remeber units), 1.0 for CO %, and like 1200 or something for NO ppm (over a 1000 but I forget exactly). I blew 45 for HC, .25 for CO, and get this, 89 for NO. 89 out of 1000+ allowed, lol. Prior to the new Catco cat I was hitting 200 on HC and freaking 3.90 ish on the CO, failing me... Tuned the carb and got HC passing w/ some 120s, and CO down to 1.95. Couldn't get any lower. New cat just destroyed my numbers though...

Grim Reaper

My limits are 80/85 HC idle/highway and 0.4%/0.4% CO idle/highway and NOx is about 800-900 as I best remember. All dyno tested.

Before they lowered the numbers, it use to be 500/210 HC and 1.2/1.2 CO with 1500 NOx; or something like that. I would have to dig up my old emission tests to know for sure. But that is basically what I remember.

The biggest laugh is the Government allowed 4 bangers to pollute MORE. The Government said that "since a smaller engine actually consumes less air, they can produce more ppms than a larger engine to compensate for the amount of air consumed".

The only thing they forget is that a smaller engine also revs a lot more at a given speed than a larger engine so they effectively consume the SAME amount of air.

At 60 mph, my engine is just barely turning 1,800 rpm. They test me at 2,500 rpm for the highway test. I have complained about this as this is almost 90 mph. Our fastest speed is mostly 55 on most roads, with a few being around 60 and only one road in the entire province allows you to do 70 mph; and it is outside the "testing area". Give me a break.

The biggest irony, is that the Government is a Socialist Government and their supporters are mostly environmentalists. I always laugh when I see these "tree huggers" protesting about the environment and then watch them drive away in there mid60s VW vans, belching smoke and oil, and the general mess they leave behind after their protest.

There vehicles are so old that they are basically exempt from pollution testing. I have seen the levels those old wrecks are allowed to produce, and they produce more pollution in a day than I do all year.

Steve89GTA

I'm from Ontario and I'm doing my emissions tomorrow...don't have a choice...since tomorrow is the last day for the RCL for 'never been tested vehicles in phase 1'.
Your car is part of phase two so you don't have this problem. You can go do the test, fail, get an alignment done and maybe some tuning and bang, you hit the $200 mark and you're good for two more years.
If I don't get this sorted out tomorrow for my car, next week will mean passing the test or storing the car for eternity until I can drop an engine (or wait for the 20 year allowance (no testing for 20+ year old cars..)
Worst thing is, my car has been stored for 3 months and she ain't running happy...

farm-kid/88camaro

Thanks for all the advice guys.

I'll have to look deeper into what our laws here are, I went to the website but it says nothing about modifications etc, although I've heard this is not a big concern.

Right now i have to the option of which fuel system route i want to go, but with the vortec heads, anything but carb gets pricey.

If I do find out the numbers i need to obtain, will you guys advise me as to whether or not their obtainable with a carb set-up?

ihateallmustangs - thanks for the tip, I'll have to slip into canadian tire and see what they say.

Steve89GTA - I would go and spend the $200 and not worry about passing, but two years down the road from now I'll have no choice but to pass, so i'd rather get it right the first time.

Daz

iTrader: (1)

Steve89GTA,
The $200 youre spending should go to something thats related to emissions.Changing to carb will fail the visual inspection..IF they know what theyre looking for