Test pipe anyone?
#1
Test pipe anyone?
I just got done putting together a test pipe and did a quick test before leaving for a business trip. I only had time to perform a pre-test with a scan tool to monitor the secondary O2 sensor activity and compare it with the reading after the test pipe. The reading seems normal and no CEL yet after a short drive around the block. I will follow up with more info once I return home.
I know most people use two anti-foulers but one seems to be good enough for the TSX as the O2 sensor is no longer in the path of exhaust flow. I drilled the hole completely through the anti-fouler. However, if I have to do it again, I think drilling the hole large enough to house the O2 sensor tip should be good enough. This retains the small opening at the tip of the anti-fouler.
Some pics...
Test pipe
Test pipe and high flow cat
Anti-fouler Just enlarge the cavity without drilling through should do the trick.
I know most people use two anti-foulers but one seems to be good enough for the TSX as the O2 sensor is no longer in the path of exhaust flow. I drilled the hole completely through the anti-fouler. However, if I have to do it again, I think drilling the hole large enough to house the O2 sensor tip should be good enough. This retains the small opening at the tip of the anti-fouler.
Some pics...
Test pipe
Test pipe and high flow cat
Anti-fouler Just enlarge the cavity without drilling through should do the trick.
Trending Topics
#11
Thanks guys! I will hit the dyno when I return home from my trip. I don't think it increases any significant amount of noise comparing to the high flow cat. If it did, it's not noticeable like installing an aftermarket exhaust system.
The pipe and O2 bung are stainless but the flanges are mild steel. I wish someone would sell some stainless flanges. Currently, I can buy the rear flange but the front flange is still being hand made. If anyone knows where to get custom flanges made, please let me know.
The pipe and O2 bung are stainless but the flanges are mild steel. I wish someone would sell some stainless flanges. Currently, I can buy the rear flange but the front flange is still being hand made. If anyone knows where to get custom flanges made, please let me know.
#12
Moderator
Regional Coordinator (Southeast)
Regional Coordinator (Southeast)
Join Date: Dec 2003
Location: Mooresville, NC
Age: 38
Posts: 43,628
Received 3,841 Likes
on
2,575 Posts
I need to go get an anti fouler for my comptech header and rt cat setup cause I have a check engine light that wont go away. Also my car is idling at 500rpm and has stalled on me twice.
#15
Suzuka Master
Join Date: Jul 2003
Location: Cincinnati, OH
Age: 49
Posts: 7,594
Likes: 0
Received 4 Likes
on
3 Posts
Originally Posted by CCColtsicehockey
I need to go get an anti fouler for my comptech header and rt cat setup cause I have a check engine light that wont go away. Also my car is idling at 500rpm and has stalled on me twice.
I know you have a 5AT... hahaha
#16
Watch out Johnny! If "the gen" finds out you can machine like that, they're gonna move you from your 4th floor "baller" seat to the C.U.P. and you'll loose your Space Needle view.
#21
Originally Posted by dzuy
damn. how many things are you gonna make? :troutslap
how about making me a fridge?
how about making me a fridge?
Just borrow from your new equity and mod the TSX even more. That way, all interest on the mods will be tax deductable.
#23
Moderator
Regional Coordinator (Southeast)
Regional Coordinator (Southeast)
Join Date: Dec 2003
Location: Mooresville, NC
Age: 38
Posts: 43,628
Received 3,841 Likes
on
2,575 Posts
Originally Posted by peter_bigblock
JTso, what size drill bit did you use to enlarge the cavity in the anti-fouler?
#26
Racer
Join Date: Feb 2005
Location: Grand Haven, Mi
Age: 57
Posts: 448
Likes: 0
Received 0 Likes
on
0 Posts
Anti-foulers!
When I was 16 and got my first car ($400 '75 Ford Granada...don't ask I'm old okay) it would burn oil like crazy. So I would pull the sparkplugs once a month and use a brass wire wheel on a drill and clean off all the build-up. After doing this for about 6 months I saw a set of anti-foulers at a local autoparts store. I thought sweet, no more pulling the plugs and cleaning them all the time.
Well I installed the anti-foulers over my plugs and the car ran great!!! It turned into a monster, great throttle response, awesome pick-up....heck I could even do a 1 wheel burn-out if I put the rear tire on some wet leaves! It was about after one week that the first spark plug blew out of the engine on my way to school. It was completely melted, as were all the others!
Point of the story is don't use anti-foulers as anti-foulers!
When I was 16 and got my first car ($400 '75 Ford Granada...don't ask I'm old okay) it would burn oil like crazy. So I would pull the sparkplugs once a month and use a brass wire wheel on a drill and clean off all the build-up. After doing this for about 6 months I saw a set of anti-foulers at a local autoparts store. I thought sweet, no more pulling the plugs and cleaning them all the time.
Well I installed the anti-foulers over my plugs and the car ran great!!! It turned into a monster, great throttle response, awesome pick-up....heck I could even do a 1 wheel burn-out if I put the rear tire on some wet leaves! It was about after one week that the first spark plug blew out of the engine on my way to school. It was completely melted, as were all the others!
Point of the story is don't use anti-foulers as anti-foulers!
#28
C'mon, man! Row yer own.
Join Date: Jun 2005
Location: WDMIA
Age: 57
Posts: 1,210
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by JTso
Do a stepping drill method. Remember not to drill it all the way through. Btw, I just did one like 2 minutes ago.
#31
Some quick updates... I took the car out for a spin after a week of being away. The test pipe does seem to make the exhaust slightly louder. The secondary O2 sensor reading with the updated anti-fouler appears to be normal as if a CAT is installed. Still no CEL under various of driving condition. However, there is an increase of exhaust odor when the car is in the garage idling.
I probably won't take the car to the dyno until version 2 is ready. V2 will be a resonated test pipe to allow free flow without the noise.
I probably won't take the car to the dyno until version 2 is ready. V2 will be a resonated test pipe to allow free flow without the noise.
#36
Yohan
Join Date: Jun 2005
Location: Melbourne, Australia
Age: 38
Posts: 140
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by drunkenbuda
A pipe he is testing. REplaceing his CAT. Read his first post my man.
#37
Originally Posted by Tsx536
To be more specific, do you have the air fuel ratio while the ECU is in open loop mode?
Does the scan tool you have display whether the ECU is open or closed loop mode?
Does the scan tool you have display whether the ECU is open or closed loop mode?
#39
Originally Posted by kwjustin89
Are you planning on sellings these?