I must be nuts...........

[irockwithdirt]

I'm contemplating taking the plunge and buying a set of postons headers, a crossover, one of mease's 3" downpipes, and a dual 3" system with no mufflers from torque tech. Is anyone running anything similar? Wonder what results I might expect. Think I'm gonna go ahead and run a cat to be safe. I am so out of control

 

[fireberd350]

i have the 3" TT cat back w/ 2 chamber flows and a 3" zero to sixty dump pipe and a 2.5" crossover and a mease 3" dump pipe w/o the cat.....the TT 3" exhaust is a nice piece i love mine....the 3" downpipe w/ headers and crossover will hugely increase power and spool up, i do not have the headers but I hear they make a HUGE difference...I wish i could have kept my cat and put a cutout right before it but i can live w/o it Anyways Go for it....probably end up costing you like $1500 tho.....now all you need is a TE33, injectors, and chip and youll be pusing 12's

 

[cool 84]

Sounds like you will be set well into the 9s exhaust wise. Spoolup should be awesome. You will probably be ok with no mufflers and stock turbo, with a system like yours you might change your mind once you upgrade the turbo. Mine sounded great with no mufflers. Then I upgraded to a TA62 and my car sounded more like a rice car, lost a lot of the throaty sound so I put the mufflers back on.

I just saw you plan on running a cat. That will keep the sound level down for sure but why run something so restrictive on such a nice exhaust system? If you're worried, run a nice gutted 3" cat.

 

[irockwithdirt]

We have inspections here...........but only a sniffer, only visual inspection is for vented gas cap. Will one of our cars pass without a cat? I am 99% sure my car has a brand new longblock in it and a new turbo. Just found a 86/7 ECM and ign. module in the junkyard. Also purchased a thrasher 92 chip. What could I expect from this combo with proper tuning?

 

[cool 84]

There's very little chance of the car passing without a cat. Do they test for NOx where you live? If not, you have a better chance but still a very small chance. The cat is the single most restrictive exhaust component and should be one of the first things to go. You can run a test pipe and bolt the cat on when you go to smog.

 

[turbowrenchhead]

It has begun. Welcome to the spending $$ club.
Try to register your car in a non emmission testing area. There is no way in h*ll it will pass without a cat. So if you get it registered with no emissions testing. Pull the friggin cat off of the there and run a straight through muffler. You can also elminate the EGR system to.

 

[irockwithdirt]

Oh it started a long time ago Bought this car to use as a cheap driver. Have a 71 chevelle SS conv. that has been apart forever.......had 90% of everything to put it back together...... guess sitting a little longer won't hurt........money has to go somewhere I guess . Wish I had a relative out of testing area

 

[turbowrenchhead]

Well I dont know about IL. But in WI you can register it to your address and there is a line on the form that says. Vehicle kept in county of --. Just pick one that doesnt have it. Abra cadabra loop hole. You would have to let your registratioin expire and reregister. Hope this helps.

 

[irockwithdirt]

Well as of right now my registration on the car is suspended because I couldn't get it back together in the time frame they gave me to have it inspected. Sucks that I am going to have to illegally drive the car to get it ot the point it will pass emmissions but so be it. Car was barely running when I bought it and it has been one thing after another. I will have to look into that, not sure if I have or had that option. Thanks!!

 

[boostmaster]

emissions

don't worry it will pass without a cat. I'm a certified emission inspector in one of the strictess cities other than california and we test for nox also my t type passed with flying colors. here are my mods ta60, poston headers, atr up & down pipes, lunati 200 cam, 42lb injectors, adjustable fuel regulator, and fuel pump w/ hot wire kit. if your cars running good just turn the fuel pressure up about 2-4lbs and that will keep the nox in check.

pete

 

[turbowrenchhead]

Well then what happens to HC and CO???

 

[cool 84]

Originally posted by turbowrenchhead
Well then what happens to HC and CO???

That's right. It's a balancing act, lower one and you raise the other. My car failed a few times and once I replaced the defective cat it was one of the cleanest I've ever seen. HC was nearly 0. Without the cat it didn't come that close. The reason I even suggested to try without the cat is if he doesn't have the NOx testing, he could lean it out a lot and see if the HCs come down enough. Not likely though.

 

[boostmaster]

Emission Test

Ok just dug out my result from the smog test on my T Type.
Dated 4/22/2003

This at about 18psi boost, fuel pressure @ 40psi static.
25/25 test 50/15 test
reading allowable reading allowable

hc - 0125 - 152 0115 - 157
co% - 00.89 - 0.97 00.81 - 0.88
nox ppm- 0183 - 1082 0281 - 1184
RPM - 1683 - 2500 1662 - 2500
CO+CO2 -14.2 - 6.0 MIN 14.3 - 6.0 MIN

 

[racemybuick]

No way in Jersey

Your car would fail misserably if you were in jersey wtih out a cat. I tried getting my car through with the cat, and I failed because my car was running too rich...to much gas in the exhaust. I would do what everyone else says, tkae it to inspection witht he cat on, and go home, take the cat off, put it in a box for next inspection...good luck, let me know the final costs for that exhaust system. I already have to poston headers, and they are really great, but I have th original cat back system...Good luck again!

John

 

[irockwithdirt]

Did U ever get a shipping total on the header panel?