Calif. SMOG test w a turbo 3.2?

911st · 05-28-2009, 08:36 AM

I miss having a turbo'd Porsche and some times think of sticking a turbo on my 85 3.2 Carrera.

I am thinking I would have to take it off every 2 years and convert my car to near stock to pass. Would end up with low compression pistons at some point (8/1?).

Any thoughts?

Could I build it in a way to just add a cat and get it to pass?

Joe Bob · Joe Bob's Garage

Talk to the DMV/BAR Referree and they will tell you the requirements. If you take a later engine and transfer EVERYTHING and do a few mods to the sensors, you will pass.

mb911 · mb911's Garage

Quote:

Originally Posted by 911st

I miss having a turbo'd Porsche and some times think of sticking a turbo on my 85 3.2 Carrera.

I am thinking I would have to take it off every 2 years and convert my car to near stock to pass. Would end up with low compression pistons at some point (8/1?).

Any thoughts?

Could I build it in a way to just add a cat and get it to pass?

the nice thing is you could use all stock 930 parts for the exhaust path so it should pass visual and with using a hi flow cat after the turbo you would probably have no issues

juan ruiz · juan ruiz's Garage

I remember the "Old" days. I used to remove the needed components every year to do the smog test, finally I got "Smart" I got a different chip with the needed values and it passed every time and for the rest of the 11 months it was nothing BUT pleasure; we now don't have to worry about it anymore here in Florida

911st · 05-28-2009, 12:12 PM

We have a visual in Ca.

I think all I have to do is have a Cat and pass the shif test but not sure.

Ben, using a stock 930 w cat migh work, then could pull it off.

It might be possible to find a station that dose not know the 911 and as long as it looks like a stock install and has a cat I might be ok. Not sure if a turbo and large aftermarket intercooler will triger the visual.

I wonder if the Calif. EBA computer always says if it has a turbo or not?

carrera32911 · 05-28-2009, 12:27 PM

Quote:

Originally Posted by 911st

I wonder if the Calif. EBA computer always says if it has a turbo or not?

I believe this is the problem. If your car isn't turbo from the factory, I don't think you'll be able to pass even if it passes the sniff test.

Removing the turbo every two years is the other option.