I have a 3" resonated test pipe, the first time I have ran a car w/o a cat. Is it normal to get more "smoke" or vapor from the muffler with a test pipe. I get the usual cool morning vapor but I also get a bit when it is 70 degrees out and the car has up to temp for a while. Car never did that before the turbo/test pipe.

 

i don't know about the smoke mike. but i have a question for you.
does your exuast rattle before the car warms up???? im really it mine rattles like i have a few marbles rattling around in the exuast. its really suckys

 

No, not at all. I dont' have anything it could really rattle against. You don't have your heat shield still on do you?

 

Yes, that is normal. I get smoke of all sorts at all times. I don't mind though. It smells good to me.

How long is the resonator on the test pipe? If its shorter than 10", where'd you get it?

 

It is the one custom maxima sells, I got mine used.

 

i've used the straight ebay test pipe and now have a CM res test pipe and I smoke all the time, not to much when its warm but its there, NA by the way.

 

you mean the heat shield on the cat ???


man i have traced the rattling its coming from the exuast. with gloves on if i put my hands on the exuast tank it will stop rattling. as well as if i were to step on the exuast tip with my shoe.

 

have you seen some fireballs shoot from your exhaust yet? being that your running just a straight pipe. my 3" cat doesnt work that great so every once in a while when i race it happens,

 

I have smoke comming out of my car in the dead of summer. I started to get worried, but I placed my car next to two other turboed maxima's and they were dong the same thing

 

i have a little coming out of my exhaust with a test pipe too.

 

I get a good amount of smoke at high RPM with a gutted Cat and 3" Pipe. It's white smoke . But compression shows as well within spec, so

When warmed up on warm days at cruising/low RPM however - I get nothing.

WHen I was testing the FMU and running pig rich on the Dyno, I shot a 3' long flame out of my exhaust....I've got it on video somewhere....

 

now that i wanna see, LOL

 

I know a kid who has a turbo jetta and when he went to to get a test pipe they told him without the cat his o2 sensors and injectors could burn up... Anyone know anything like this happening on a max

 

injectors????

but the O2 would get pretty nasty, but think about the other 2 that we have in our manifolds. theyre ok. you just need to have a good tune and not be pig rich w/ 10.0 afr

 

It doesn't matter because the rear o2 is useless. I don't have mine anymore. No sim either.

 

pawnstar did you just throw a dummy o2 in to avoid the CEL?

 

^If the fronts are working properly disconnecting the rear will throw no codes.

 

i iwas thinking about putting my wideband in the stock position after the test pipe. the thing is that i think the angle is wrong and the wire isnt long enough

 

I have my rear o2 zip tied to the under carriage of the car for 1500 miles and have not thrown a code yet

 

Isn't the idea of a wideband to have it as close to the exhaust ports as possible? If you have it way back in the test pipe there will be some combustion in the y and test that will skew the #'s. I know its a lot to run two WBO's but putting it at the collector at least seems like a good compromise between price and accuracy.

 

it is supposed to be at least 18 inches from the exhaust port. the collector would be the place of choice, but since there is no cat, the test pipe would give ease of installation andnot skew the numbers.

 

you want your egt probe as close as possiable, and i do get codes thrown saying my cat isnt working right (duh its freakin 3"). so your saying dont cut the 3rd O2 sensor out, just pull it from the bung and block off the bung or put a wide band there? im gonna probably do the WBO2 Innovative has a LM-1 w/ the gauge for $210