My 924 carrera gt just arrived!

philt68 · 09-05-2014, 12:35 PM

and it's fantastic...just one small thing-it could be a little louder...any suggestions? removing the cat and straight pipes?

amehl · amehl's Garage

WHAT IS THIS PICTURE. I am almost crying... that garage is a dream.

azbanks · azbanks's Garage

I would try running without the cat first.

Is that a Lancia Stratos next to the M1?

kcoyle · kcoyle's Garage

IIRC my exhaust and wastgate dump directly into the "front muffler" with no flanges so I don't think you can just replace it with a straight pipe, it may require some cutting. Turbo cars are a wee bit quiter.

amehl · amehl's Garage

Quote:

Originally Posted by azbanks

i would try running without the cat first.

Is that a lancia stratos next to the m1?

yes.

philt68 · 09-05-2014, 02:17 PM

Quote:

Originally Posted by kcoyle

IIRC my exhaust and wastgate dump directly into the "front muffler" with no flanges so I don't think you can just replace it with a straight pipe, it may require some cutting. Turbo cars are a wee bit quiter.

wee bit is an understatement..it's (almost) like driving a rolls royce (if i'd ever driven one)

would i run into any technical problems removing the cat? engine management, etc etc (whatever that means)

philt68 · 09-05-2014, 02:18 PM

Quote:

Originally Posted by amehl

WHAT IS THIS PICTURE. I am almost crying... that garage is a dream.

i was trying to make you cry...

kcoyle · kcoyle's Garage

Quote:

Originally Posted by philt68

would i run into any technical problems removing the cat? engine management, etc etc (whatever that means)

Nope, it's mechanical fuel injection.

AaronM · 09-05-2014, 02:52 PM

Quote:

Originally Posted by philt68

would i run into any technical problems removing the cat? engine management, etc etc (whatever that means)

Technical problems? Nope.

Great big EPA fines if they catch you though. Not that it's likely they will, but I figure it ought to be at least pointed out.

philt68 · 09-05-2014, 03:17 PM

Quote:

Originally Posted by AaronM

Technical problems? Nope.

Great big EPA fines if they catch you though. Not that it's likely they will, but I figure it ought to be at least pointed out.

epa fines, even on a car that's older than 25 years old? i thought 25 and older were exempt from all that kind of thing?

here's what i found on the webs..

'For future reference, in NY, if the vehicle is 25 years old or older, it doesn't have to have the catalytic converter in place. You could legally replace it with a straight pipe. A vehicle newer than 25 years old, by NY State law must have the catalytic converter in place to pass state inspection. We had to fail a pristine 94 f-150 because it had a motor swap for a mustang 302 and a cat delete. The truck came from Florida, where they have no inspections.'

grendiers · 09-05-2014, 03:39 PM

Geesus, you just got the car. Why not enjoy the car that all of us toofah owners can only dream about?

philt68 · 09-05-2014, 04:56 PM

Quote:

Originally Posted by grendiers

Geesus, you just got the car. Why not enjoy the car that all of us toofah owners can only dream about?

because my need to fiddle is programmed at a sub atomic level...

kcoyle · kcoyle's Garage

Quote:

Originally Posted by azbanks

Is that a Lancia Stratos next to the M1?

this one???
https://www.youtube.com/watch?v=NgEup_8nl6I&list=UUATEcOYeoEv5EZLKHodocOg

Ferraripete · Ferraripete's Garage

Quote:

Originally Posted by philt68

and it's fantastic...just one small thing-it could be a little louder...any suggestions? removing the cat and straight pipes?

phil! I am very excited for you. a true homologation car...to go with your other homologation cars!!

well done my friend!!

best,

Peter

AaronM · 12:41 PM

Quote:

Originally Posted by philt68

epa fines, even on a car that's older than 25 years old? i thought 25 and older were exempt from all that kind of thing?

here's what i found on the webs..

'For future reference, in NY, if the vehicle is 25 years old or older, it doesn't have to have the catalytic converter in place. You could legally replace it with a straight pipe. A vehicle newer than 25 years old, by NY State law must have the catalytic converter in place to pass state inspection. We had to fail a pristine 94 f-150 because it had a motor swap for a mustang 302 and a cat delete. The truck came from Florida, where they have no inspections.'

Doesn't matter. Federal law makes it illegal to remove any "emissions control device" from any vehicle, regardless of age, unless the removal is for replacement due to part failure.

The fact that some states stop performing emissions inspections after a certain age does not invalidate the federal law.

http://www2.epa.gov/sites/production/files/documents/exhsysrepair.pdf

"The 1990 Clean Air Act Amendments even prohibit private individuals from installing 'converter replacement pipes' on their own vehicles. Anyone who installs such pipes would violate section 203(a)(3)(A) and (B) of the Clean Air Act (Act)."

Note that this technically applies even to removing the catalytic converter for "off road" use.

Now, if a state has stopped performing inspections because of the car's age and your shop doesn't check, it's unlikely that the missing catalytic converter would ever be noticed, so the decision is up to you, but it's still technically illegal. (Note also that it's technically illegal for a mechanic to allow a car with a missing catalytic converter to leave his or her shop unless the exhaust system has been returned to compliance with the Clean Air Act regulations, so a mechanic could, theoretically, refuse to release the car back to you without a catalytic converter if you took it somewhere for repairs.)

Link to the specific regulations in the US Code: http://www.law.cornell.edu/uscode/text/42/7522