I have a test pipe on my 00 gsr and the cel is on for secondary o2 sensor i believe. Is it normal with this set up to puff a bit of black smoke after a hard run? The car is pretty fumey as well.

 

normal. after hard run? or during hard run. i know it will flow black smoke on high rpm.

 

I never noticed it smoking when i was driving, just when i came to a stop on the off ramp. Then when i started to drive again it puffed a little.

 

yes i think the black smoke is normal but im not sure about puffing. a little puffing is fine but i think u should be ok

 

I hope it is nothing big, i am gonna get a high flow cat and get the o2 sensor hooked back up. The fumes are giving me a headache lol. I am frightened to death that it is blue smoke burning oil coming out of it(its hard to tell the color cause my windows are tinted and i have spoon mirrors with the blue tint on them). Compression is 230 across the board though so it has to be rich mixture causing it. Can anybody recommend a place within Canada to order a carsound cat?

 

i'm running a test pipe with no secondary o2 sensor as well. did you reset your ecu before driving it after the install? mines was smoking abit after install when reseting my ecu. after driving it hard for awhile, it went away.

 

yah dood. a cat is not just to filter out the exhaust its job is to also ignite any unburned fuel that is pushed out. so Yes hard run expect smoke. and the sputter? not sure what size piping are u running may be 2 but for ur straight threw setup.

 

I am running a comptech exhaust with a comptech test pipe. I think the exhaust is 2 1/4". I am not sure if the ecu was reset when the test pipe was put on because it was on the car when i bought it(just got it a couple days ago). Anybody want to buy a comptech test pipe?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DA_Entegra &raquo;</TD></TR><TR><TD CLASS="quote">yah dood. a cat is not just to filter out the exhaust its job is to also ignite any unburned fuel that is pushed out. so Yes hard run expect smoke. and the sputter? not sure what size piping are u running may be 2 but for ur straight threw setup.</TD></TR></TABLE>

Wrong... a catalytic converter does just that, converts the nasty exhaust fumes into a somewhat cleaner substance. It doesnt filter or burn anything it "converts" just as the title exclaims.

Therefore, removing it and replacing with a pipe it will burn black and smell like *** all the time. It will most likely stain your bumper and usually isnt worth it if you have a stock engine anyway.

You may gain some power due to the less restriction in the exhuast system, but yes its gonna be a hassle. Black smoke, stained bumper, its illegal, and shitty smelling exhaust are results of test pipes.

 

ok homie since u wanna be smart. have u ever seen the inside of a cat?? prob not its made from a thin metal in a honey comb pattern its job is to 1. filter like you said. and 2. ignite any unburnt fuel that made it threw. it gets super hott 2 do so. Dont believe me then cut one open and find out.Or better yet just do your homework.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ForceFed_Motorsports &raquo;</TD></TR><TR><TD CLASS="quote">Wrong... a catalytic converter does just that, converts the nasty exhaust fumes into a somewhat cleaner substance. It doesnt filter or burn anything it "converts" just as the title exclaims.

Therefore, removing it and replacing with a pipe it will burn black and smell like *** all the time. It will most likely stain your bumper and usually isnt worth it if you have a stock engine anyway.

You may gain some power due to the less restriction in the exhuast system, but yes its gonna be a hassle. Black smoke, stained bumper, its illegal, and shitty smelling exhaust are results of test pipes.</TD></TR></TABLE>

this is correct, the cat doesnt "burn" anything, its filtering your exhaust

 

yet another mis-informed person. Do your homework

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DA_Entegra &raquo;</TD></TR><TR><TD CLASS="quote">yet another mis-informed person. Do your homework</TD></TR></TABLE>
I actually agree with DA_Entegra.

From what I heard it does have a honey comb structure inside. Like it said...yes it converts. But you have to ask yourself...what does this convert? Well like DA_Entegra said, the honey comb get real hot...I believe the fhiltration mesh is made of a ceramix coated metal of some sort. The mesh will burn any excess gas that wasn't burnt in the first process.

In this sense...it's converting it into cleaner air.

 

to end all the arguments here.....

http://en.wikipedia.org/wiki/Catalytic_converter

 

well, before when my header, cat and exhaust system were stock with the exception of my stock looking flowmaster muffler, i still had alittle bit of smoke coming out during cold starts and hard driving. it wasn't black smoke just normal smoke that every car has.

now with my jdm header, test pipe and aftermarket exhaust the same thing happens. still no black smoke, but still smokes during cold starts and hard driving. btw, my bumper has no stains and i can only smell things, very alittle, during cold starts when i'm letting my car warm up.

fitment of your exhaust will probably decide whether or not you will have a stained bumper or not more so than just having a test pipe. you should check and see if it's really black smoke and see how offen it comes out. it maybe more serious than just your test pipe. get a cat and see what happens, i maybe wrong. do you have the full comptech header to exhaust combo?

 

I have an apexi gt spec stainless header. I dont have any soot build up on the rear bumper or anything. Every now and then she lets out a big cloud of smoke when i am coming from a stop. I had a buddy follow me and he said the smoke looks blue. I changed the oil 300km ago and the oil level doesnt seem to have dropped off. When i drained the oil only 3 quarts came out, and over 4 went in when i filled it. I'll drive this car off a cliff yet, ******* piece of ****.

If it needs a ring job maybe thats a good time to upgrade the engine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ac_attak &raquo;</TD></TR><TR><TD CLASS="quote">I have an apexi gt spec stainless header. I dont have any soot build up on the rear bumper or anything. Every now and then she lets out a big cloud of smoke when i am coming from a stop. I had a buddy follow me and he said the smoke looks blue. I changed the oil 300km ago and the oil level doesnt seem to have dropped off. When i drained the oil only 3 quarts came out, and over 4 went in when i filled it. I'll drive this car off a cliff yet, ******* piece of ****.

If it needs a ring job maybe thats a good time to upgrade the engine.</TD></TR></TABLE>

yeah, it wasn't your test pipe. good luck with your car. it sucks because you just bought the car a couple of days ago. did you test drive it before you bought it? you should ask the seller to give you back your money.

 

finally someone who knows what they are talking about

 

The seller guaranteed me there were no problems with the car and if i have any problems within the first little while he would take care of it. For some reason i dont have much faith in that happening though, but we'll see. I had a shop check the car out before i bought it and had it compression tested and the results were good, and i took it for a test drive as well. There is only 75k miles on the car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DA_Entegra &raquo;</TD></TR><TR><TD CLASS="quote">ok homie since u wanna be smart. have u ever seen the inside of a cat?? prob not its made from a thin metal in a honey comb pattern its job is to 1. filter like you said. and 2. ignite any unburnt fuel that made it threw. it gets super hott 2 do so. Dont believe me then cut one open and find out.Or better yet just do your homework. </TD></TR></TABLE>

Well lets see im a technician attending Bellingham Technical college and yes i have seen the inside of a cat and yes i understand emisions and the point that one serves. Do not correct my statement with your wrong word of mouth opinions, it doesnt filer at all!!! It causes a chemical reaction thats healthier for the environment and decrease NOx, which is a thing they test for in emissions in case you didnt know....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sydegsr &raquo;</TD></TR><TR><TD CLASS="quote">to end all the arguments here.....

http://en.wikipedia.org/wiki/Catalytic_converter</TD></TR></TABLE>

Thank you, this helps DA_Entegra feel stupid for giving wrong info to a person that needed help. Congratulations

 

how do u think that chem. reaction takes place?? it burns. You said it burns nothing. The gasses passing threw the honey comb structure will do nighing if its not hot enough to burn.

 

You obviously didnt even bother to read the article because it clearly backs up my previous statement, whereas the honeycomb is there to support the catalyst.

Anyway, i deal with people like you all the time that think they know what they are talkin about so have learned to just let it pass. Keep the interest, just read and maybe you'll have a deeper understanding how things work from a technician point of view rather than a grease monkey that only knows how to bolt things on.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ForceFed_Motorsports &raquo;</TD></TR><TR><TD CLASS="quote">You obviously didnt even bother to read the article because it clearly backs up my previous statement, whereas the honeycomb is there to support the catalyst.

Anyway, i deal with people like you all the time that think they know what they are talkin about so have learned to just let it pass. Keep the interest, just read and maybe you'll have a deeper understanding how things work from a technician point of view rather than a grease monkey that only knows how to bolt things on.</TD></TR></TABLE>
spoken like a true technician

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djdc2 &raquo;</TD></TR><TR><TD CLASS="quote">
I actually agree with DA_Entegra.

From what I heard it does have a honey comb structure inside. Like it said...yes it converts. But you have to ask yourself...what does this convert? Well like DA_Entegra said, the honey comb get real hot...I believe the fhiltration mesh is made of a ceramix coated metal of some sort. The mesh will burn any excess gas that wasn't burnt in the first process.

In this sense...it's converting it into cleaner air.</TD></TR></TABLE>

i think the mesh is there to maximize the surface area for the flowing exhaust gas to make contact with. the mesh is made of a material that when contacted with the exhaust gas, it will "catalyze" the exhaust gas as noted in this equation:
2NO =&gt; N2 + O2 or 2NO2 =&gt; N2 + 2O2
2CO + O2 =&gt; 2CO2
CO2, N2, and O2 is all naturally in the air (products of living organisms and used by them too, other than N2. however, i think cyanobacteria fixes N2 from atmosphere into a useable form in soil that is used by plants to make biomass with CO2)

the mesh is made of platinum i believe and some ceramic compound. they need to be heated up because when temperature rises, reactions happens faster. and when you have gas just flowing through at such a high speed, u need really fast reactions to in order for a catalytic converter to be efficient.

so therefore, i don't think the mesh was designed to burn unburnt fuel. it might just be an added bonus that it happens to burn it since it is pretty hot when the car is warmed up if this is true at all.