2 Q's...

[foxmustangman]

Okay, so I bought my longtube headers and pro-chamber for $200. Now I'm worried about my smog check. I usually pass with flying colors and almost 0 emissions...but I also had 4 cats and a smog pump. How will I do without those factors? Is there some way I can rig up my smog pump to the pro-chamber, or whatnot?

My second Q is That I have a Torque converter that's less than half full, and can't put it on the tranny w/ any more fluid in it. My dad said that the tranny fluid will fill up the TQ, but he's used to AMC's. Is that all I have to do to have a full TQ when I'm done, is put fluid in the tranny?

 

[Black1987Stang]

About the torque converter, yes filling the trans should fill the torque converter. Someone correct me if I'm wrong. and nice deal on the exhaust, im selling the same exact setup for the same price to my friend.

 

[87foxstang]

hmmm...the pro chamber has no cats correct? If thats the case, your going to want to get a mid pipe with cats.

For reference I passed EASILY with 2 original cats, no smog and running rich.

 

[bloopbloob]

the smog pump will do nothing without cats to use the air its pumping in.

 

[grey5.0beast]

It will still dilute the gases.

 

[foxmustangman]

Thanks for the info on the TQ. The new exhaust is 3", can I rig my old cats to fit the 3" exhasut?

 

[SteedaGT9150]

just keep your old stuff and slap it back on for emissions, thats what a lot of us do

 

[jrichker]

You will need a cat H pipe for the long tubes. Your chances of passing emissions testing with the long tube headers decrease because extra tube length causes a temperature drop in the exhaust gas. That temp drop reduces the effectiveness of both the O2 sensors and the cat converters. Both of them need hot exhaust to work properly.

just keep your old stuff and slap it back on for emissions, thats what a lot of us do

Long tubes will not fit the stock cat H pipe. Removing and reinstalling the long tubes is not a simple process for most cars, so swapping the old headers and H pipe isn't a good solution.

 

[92GreenGT]

Long tubes will not fit the stock cat H pipe. Removing and reinstalling the long tubes is not a simple process for most cars, so swapping the old headers and H pipe isn't a good solution.

Agree. Plus its not worth the hassle to change around all the time. Sell the prochamber and find a used midpipe for the longtubes with cats. Its not going to kill HP like some will probably tell you. Plus it will be quieter, which is a plus...lord knows he need another loud mustang running around.

 

[ryan218]

isnt a 3" exhasut a little over kill for a stock H/C/I 5.0?

 

[stykthyn]

isnt a 3" exhasut a little over kill for a stock H/C/I 5.0?

not if he doesnt mind being a turd off the line

 

[Mustang5L5]

I beleive LT's would cause you to fail visual. Not 100% sure on this one though

 

[stykthyn]

I dont live in an inspection state, but I am told that if they have O2's equipped and you are running cats then you are fine with LT's.

I am also told that Andrew Jackson will personally convince the inspector to waive you through as well. I wouldnt put a lot of stock into this though.

 

[foxmustangman]

isnt a 3" exhasut a little over kill for a stock H/C/I 5.0?

not if he doesnt mind being a turd off the line

That's what I was thinking after i found out that they were 3"... but it's still a good deal. I'll probably sell them and make somewhat of a profit off of them.

 

[stykthyn]

flip that sucker!! 2.5" is good to about 350 horse, so unless you have a lot of mods you wont need the bigger pipes.