radpp16

Is there any difference? ok between automatics which one is faster: the CALI or FED?

Roger

Matticus

Well, I am not sure this is the right answer, not I think there is not any difference at all. They are both advertised as 222Hp, Desert Pearl sp? did an extensive test by converting the front exhaust manifold from cali spec to fed spec and said that there was a 1Hp difference. If there is any difference, it would only be by a few Hp.

madmax2k

It seems as though there is little difference in peak power output, but before the manifold changeover at 5000 rpm, the Fed Specs seem to make about 10 ft lb more torque at the wheels (based on a single dyno test).

madmax2k

See if you can figure out which car was the Cali spec....

Greg's2kGLE

How do you tell if you have Cali spec? I have four sensor type things above the front header. Does that mean I have Cali? I can't understand what the sticker is saying under the hood...

UMD_MaxSE

iTrader: (1)

4 O2 sensors means cali spec emissions. If the sticker under the hood says anything about NLEV emissions you have cali spec.

RussMaxManiac

There is no difference at all. Dyno results proved this.

I dynoed stock on a hot day in Kansas city, 184 hp and 193 TQ...I dyno more TQ than most Fed cars, but around the normal hp as most 5spd feds...

MaxTuner

I thought the dyno graph above clearly tells you that CAli-Spec makes 10lb less torque than Fed emission cars

RussMaxManiac

Let me explain this. That dyno graph shows 2 different cars. Every car is different in its own way. Some cars dyno more than others. I can see one fed emissions car auto dyno more than another and they were both stock. I will name one. Shingles dynoed near 165-170 ~hp for a 4th gen auto stock. Mine auto dynoed 144hp stock and mine was a 96 compared to his 98. I also had a 98, it dynoed 164 hp stock for a 5spd.

Like I said, every car is different and that dyno graph doesn't mean anything.

Here is my dyno graph:

http://www.5thgenmaximas.com/russmaxmaniac/dyno2k1.jpg

After studying both dyno graphs, my car actually makes about the same to more.

Matticus

As far as the above dyno goes, there will be differences in a engines output, regardless of fed or cali spec. Some 5spd folks will dyno in the high 170's Hp where another guy will be in the low 190's. Go figure.

MaxTuner

How about toyota Camry, cali spec makes 2-3 less hp than federal Spec, how do you explain that???
It is from toyota's own website, you can see it !!

I think Cali spec definitely makes less hp, it is very reasonable to say that because the configuration of the exhaust system is different...and we all know that exhaust system will affect the engine's output----

theMax

What is a manifold changeover?

RussMaxManiac

That is a toyota camry, not a Nissan, or a Maxima at that. Per the dynos our cars do not lose any for calif.

UMD_MaxSE

iTrader: (1)

at around 5200 rpm or so, the intake runners switch to provide more air... that is the spike you see on a dyno...