vipervadim

iTrader: (10)

Is there any way to convert my 99 california model to a fed spec. since i'm in ny i don't need the california emissions. and is there any way to get wrid of that extra pre-cat in the y-pipe with oxygen sensor??

thanks

maxima98vspec

i donno if u try switching to fed headers would work....just an idea.....there might be some people that have headers for sale on here. im not sure if u can conver to fed spec tho.

vipervadim

iTrader: (10)

............ bump ...........

maxima98vspec

what does bump mean... i never bin able to solve what.

SonicDust187

iTrader: (11)

Bump is just a way of moving the thread to the top so more people would see it. Lets say I have an old thread and no one answered, instead of saying "come on people whats hte answer" I would say bump.

XoPtOn

iTrader: (2)

is fed better than the cali? why would you want to convert?

Bluebird

iTrader: (4)

I think your best bet would be to get the Cattman headers & y-pipe. This would leave you with just the cat between the Y & the B. I forget what happens to that extra 02 sensor, but I'm thinking Cattman might have a fix for that.

Get it done before the drift event, I want to hear them headers in person

vipervadim

iTrader: (10)

california model has stricter emissions. (NLEV) good for emissions but bad for hp.

the 99 cali y-pipe only eliminates one of the 2 pre-cats and that means i only have optimal exhaust flow from the back 3 cylinders (where pre-cat is eliminated) and not as optimal from the front 3 (where i still have the stock pre-cat). i still get more horsepower from cali y-pipe but it's not all of it.
the problem is that california models have an extra o2 sensor. if i just diconnect it it will most likely give me a bad sensor CEL.
however because of that i'm wondering if i can get a fed y-pipe weld in an extra bung for the extra o2 and use that. but i might still get the cel because the sensor will say the pre-cat isn't working.

anybody have any feedback thanks
-Vadim

mm347

iTrader: (2)

What about the EGR system, wouldn't it be affected as well?

XoPtOn

iTrader: (2)

damn i never knew that fed max's had more hp then cali's, any1 know by how much? and also is it harder to pass emitions tests with a cali?

VQuick

iTrader: (17)

Do you know anything about emissions, XoPtOn???

Cali spec cars must comply with STRICTER emissions standards, which means that they will more easily pass any emissions test. There's more cleaning and catalytic converting of the exhaust gases being done in a Cali spec car, which restricts HP. So for a Max performance Max, you definitely want Fed spec.

XoPtOn

iTrader: (2)

lol not really i dont, so a max that was cali and a max that was fed were racing, the fedi will win and by how much?

Maxtank

iTrader: (8)

There is not that big of a difference...HP rating is the same, but it prob is a little less

vipervadim

iTrader: (10)

stock vs stock the fed max would win by a little like 1/2 car length.
y-pipe fed vs y-pipe cali + swirl valve disable mod would be a very close race, but the fed would still win by about 1/4 car length.

the 99 swirl valves restrict the air entering the lower manifold under 3200 rpms so the cali will be slower on the takeoff
but overall it shouldn't affect that much after 3.5K and only because of the one pre-cat left on cali y-pipe from front 3 cylinders.

can somebody search for a previous topic on this?

theoretically i can get a 99 fed ecu and swap it in for the cali and just get wrid of the extra oxygen sensor from the cali harness but i don't know if there any other changes on the cali that the fed ecu will not pick up and i'll get some CEL.

Maxima-4DSC

iTrader: (1)

hey its an old thread but does anyone have an answer for this ?

99se5speed

iTrader: (8)

He's actually finished this. His car is already a fed spec so pm him or something.