Emissions Testing
#1
Drifting
Thread Starter
Member Since: Oct 2004
Location: Oakville ON "Real Corvettes have folding tops..."
Posts: 1,341
Likes: 0
Received 7 Likes
on
7 Posts
Emissions Testing
All you folks out there with cam and head mods .
What has been your experince on the Ontario emission test?
What spec. cams have you passed emissions with?
How about heads? how low a combustion chamber volume have you passed with.?
Thanks for sharing. I am only doing research for my own education.
If you want to keep your response confidential then PM me Jim
What has been your experince on the Ontario emission test?
What spec. cams have you passed emissions with?
How about heads? how low a combustion chamber volume have you passed with.?
Thanks for sharing. I am only doing research for my own education.
If you want to keep your response confidential then PM me Jim
#3
Melting Slicks
Member Since: Nov 2006
Location: Cambridge Ontario
Posts: 2,300
Likes: 0
Received 0 Likes
on
0 Posts
St. Jude Donor '07
Hi Jim:
From what I gather in talking to Arun on this subject, with a tuner like EFI live and someone that know's how to use it, you can manipulate the car's comp to pass the e-test.
Manny
From what I gather in talking to Arun on this subject, with a tuner like EFI live and someone that know's how to use it, you can manipulate the car's comp to pass the e-test.
Manny
#5
Safety Car
Member Since: May 2002
Location: waterloo ontario
Posts: 3,615
Likes: 0
Received 1 Like
on
1 Post
St. Jude Donor '08
Put it this way-any cam that makes power won't pass an e-test. The biggest cam that I know of that passed was a 230/234 on a 114-but that grind is far from ideal. Alot of the LPE cams since there on 118 centerlines but they really lack any power making capability-they are more or less designed for a Turbo or Maggie in mind-then they shine.
The 224/230 cam that I recommend to alot of people will pass 99.9% of the time.
The problem when it comes to getting cars to pass is the cats and the way the e-test shop performs the test.
Factory stock cats have alot more surface area and are a ceramic material which is more restrictive but will go a long way to making the car pass an e-test.
The aftermarket "Bullet" style cats that are used on most of the header kits will have a harder time passing. They are made from a metallic substrate material that flows very well but cannot pick as much pollutants.
There is so much that can go into a car passing or not passing, such as spark plugs-plug gaps, fuel additives, engine temperature, etc and remember there are alot of shops that wills set up the test for you to fail-just so you'll spend some money to "fix" the problem.
Just pm me with specifics and I'll do my best to help you out.
The 224/230 cam that I recommend to alot of people will pass 99.9% of the time.
The problem when it comes to getting cars to pass is the cats and the way the e-test shop performs the test.
Factory stock cats have alot more surface area and are a ceramic material which is more restrictive but will go a long way to making the car pass an e-test.
The aftermarket "Bullet" style cats that are used on most of the header kits will have a harder time passing. They are made from a metallic substrate material that flows very well but cannot pick as much pollutants.
There is so much that can go into a car passing or not passing, such as spark plugs-plug gaps, fuel additives, engine temperature, etc and remember there are alot of shops that wills set up the test for you to fail-just so you'll spend some money to "fix" the problem.
Just pm me with specifics and I'll do my best to help you out.
#6
Drifting
Thread Starter
Member Since: Oct 2004
Location: Oakville ON "Real Corvettes have folding tops..."
Posts: 1,341
Likes: 0
Received 7 Likes
on
7 Posts
I have the high flow cats with my AR headers and haven't had an emission test with that setup. I have one comming in Oct. I'm only doing research now. I guess I could have the stock cats put back in if I have trouble.
Steve is yours a Comp cam? What's the valve lift?
Arun is what you recommned also a Comp cam. What's the valve lift?
Jim
Steve is yours a Comp cam? What's the valve lift?
Arun is what you recommned also a Comp cam. What's the valve lift?
Jim
#7
Safety Car
Member Since: May 2002
Location: waterloo ontario
Posts: 3,615
Likes: 0
Received 1 Like
on
1 Post
St. Jude Donor '08
I have the high flow cats with my AR headers and haven't had an emission test with that setup. I have one comming in Oct. I'm only doing research now. I guess I could have the stock cats put back in if I have trouble.
Steve is yours a Comp cam? What's the valve lift?
Arun is what you recommned also a Comp cam. What's the valve lift?
Jim
Steve is yours a Comp cam? What's the valve lift?
Arun is what you recommned also a Comp cam. What's the valve lift?
Jim
Jim-it's not the lift that affects emissions but the overlap the cam offers. Typically more overlap equals more power.
Some things are better left to private PM's.