Two inline catalytic for emission
#1
Full Member
Thread Starter
iTrader: (1)
Join Date: Jan 2006
Location: ccc
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
Two inline catalytic for emission
Question:
Let say I have 2 maps, one for performance map & the other is a more leaner
map from idle to 3,500 rpm (they sniff the car in my state at this rpm) use for emission test.
If I put 2 inline catalytic converter, do you think I have a chance to pass the
single turbo install with no air pump to the state emission test?
Thank you
Let say I have 2 maps, one for performance map & the other is a more leaner
map from idle to 3,500 rpm (they sniff the car in my state at this rpm) use for emission test.
If I put 2 inline catalytic converter, do you think I have a chance to pass the
single turbo install with no air pump to the state emission test?
Thank you
#2
Lives on the Forum
iTrader: (9)
I think you need the airpump to light off the cats.
I had trouble passing with a TT car with an airpump and stock cat until I jumper-wired the airpump to run full time, then it passed by a mile with no other changes.
Maybe just an electric airpump with a standard cat/midpipe.
I had trouble passing with a TT car with an airpump and stock cat until I jumper-wired the airpump to run full time, then it passed by a mile with no other changes.
Maybe just an electric airpump with a standard cat/midpipe.
#4
Lives on the Forum
iTrader: (9)
Others may correct me if I'm wrong, but standard cats need an oxygen supply to really work, so I doubt you can do without. Maybe some of the metallic aftermarket cats don't need O2, not sure.
A lot of single T guys install a GM electric airpump that can be located where there's room.
A lot of single T guys install a GM electric airpump that can be located where there's room.
#5
Full Member
Thread Starter
iTrader: (1)
Join Date: Jan 2006
Location: ccc
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
"A lot of single T guys install a GM electric airpump that can be located where there's room."
Can I plumb the electric air pump pipe a few inches before the catalytic?
Any idea how big the pipe I need to weld for air pump?
Oh....what about the exhaust pressure from the air pump pipe?
How can i prevent the exhaust fumes backing up to the air pump...do you guys use a one way valve?
Can I plumb the electric air pump pipe a few inches before the catalytic?
Any idea how big the pipe I need to weld for air pump?
Oh....what about the exhaust pressure from the air pump pipe?
How can i prevent the exhaust fumes backing up to the air pump...do you guys use a one way valve?
#6
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,832
Received 2,603 Likes
on
1,847 Posts
the factory runs a one way valve, seems like a good idea.
Thread
Thread Starter
Forum
Replies
Last Post
ls1swap
3rd Generation Specific (1993-2002)
12
10-01-15 07:58 PM