I've heard of the super powerful singles or the stock twins. Did anyone ever make an upgrade version of the twins like ball bearing twins. I live in California so I'm need to pass smog. The car will be mostly for the streets. Any ideas?

Thanx

 

Do a search, this topic has been discussed in here before.

You will need to run an air pump and one or two cats to pass the **** smog emissions you have. I don't think it will really make that big of a difference what turbo you have if you turn off the boost when doing your emissions and you run a separate fuel/ignition map for emissions...and one for what you're really driving the car for. Make it lean throughout the powerband and limit the redline to like 4 or 5K. What do they know anyhow what the real redline is?

 

His car won't even begin to pass emissions anyway. As I understand it, California requires that all engine swaps meet the following criteria:

1) engine must be newer than the car it's going into
2) engine must have ALL emissions equipment intact and functional
3) engine must have a US counterpart and emply all US emissions controls if it was imported from outside the USA

Since the 20B never made it to US shores, there's no way a kali smog **** would ever let it pass. CARB's website has more info.

Brandon
BR7 Racing
"FL > CA"

 

Thanks!

 

you think maybe its even a federal crime to operate a 20b?

mike

 

Oh, it is. Really, as I understand it, the guidelines I outlined are federally-mandated. It's just that Kali is really concerned with enforcing them.

Here in Florida, on the other hand, an "inspection" consists of making sure it's got at least one VIN plate and has windshield wipers. (I'm not kidding).

Brandon
BR7 Racing

Note; BR7 Racing does not condone operation of illegally-modified vehicles upon public roadways.

 

well to register a car in california all it need is a smog. part of the smog is a visual inspection. i dont really know who is enforcing the rest of the laws.

although since california ONLY cares with smog (actually they dont care at all about smog just $$), they dont care if you have brakes, tires, wipers or anything

mike

 

Not reguarding emissions...

Pettit offers a rebuild of the stock 20b twin turbos with upgraded compressor wheels installed... they also (obviously) machine the compressor housing to fit the larger wheels. The wheels they put in are from an S5 t2 turbocharger. They freakin charge $1800 to this though... ug. Now that you know what the wheel is... find some junk ones, send the turbos off somewhere else and have the same thing done for half the price.

 

If anyone wants an upgrade to the stock twins, I have a secondary that has been rebuilt with a TO4 a/r .60 compressor and wheel. Never run since rebuild. Still mounts like stock, but some intake piping changes are needed, hose clamps instead of flanges etc. Make offer: gwmaz@paradise.net.nz

 

I don't agree with all that No7 said related to #3... how exactly does a particular CA shop import Nissan Skylines then? They pass CA emissions... no engine swaps but there are no US counterparts... just a thought.

Emissions standards for vehicles are federally mandated for production vehicles because manufacturers have to meet X amount of tons/year of emissions and mileage guidelines based upon type of vehicle class (sports car, SUV, sedan, etc).

It's up to states to go further than the Fed EPA with their own standards if they so choose so long as they are at the minimum, the same as the Fed's. CA, being the lawyer-infested state that it is has taken this to a revolting level of beauracracy seemingly for the sake of money...imagine that. Unfortunately, not enough organizations are sueing CA for the Carb standards, especially the new one for CO2 emissions. Why doesn't the state of CA put emissions standards for people who produce more CO2 from breathing than a car does over the course of a year... can't tell people not to breathe or to have more children now can we? ... or could they?

 

they do put more cats on em and the epa as part of the process certifies that car. a friend of mine has a motorex r32. once the epa has certified it the state of california cant keep you from registering the car. the standard is for new cars, not used.

mike