Calif Car

carreradpt · carreradpt's Garage

My 85 911 was originally shipped to California when it was new. It now resides in Wash state. Are the motor and specs the same as cars delivered elsewhere in the US? In otherwords, does it have any smog equipment on it that is not required here? And are the specs/DME chip a "CA" type? The county I live in does not require a smog check?

APKhaos · 06-26-2002, 04:41 PM

The DME chip was specifically programmed for CA emissions restrictions. As a result, the HP & torque specs for CA delivered cars were slightly lower than for other NA cars.

Changing the chip to the stock version from a non-CA car [84-86] is the cheapest and easiest power upgrade you can get. Euro chips are not compatible. With no other changes, this chip should pass emissions inspection in your state.

You should be able to find a stock chip right here on the list - plently of 84-86 cars have had aftermarket chips fitted.

06-26-2002, 04:51 PM

How about a 79SC form CA?

APKhaos · 06-26-2002, 05:21 PM

Mark,
The 3.2 Carrera introduced in 1984 was the first production 911 fitted with Bosch Digital Motor Electronics, which incorporates a fuel and ignition map stored in a read-only memory chip.

Your SC uses CIS mechanical fuel injection. There may have been differences in the CIS setup for CA cars, but I've never seen this mentioned, nor read anything that suggests it. The CIS gurus will chime in on this one....

06-26-2002, 07:26 PM

Thanks Tony.

gblumenstock · 06-27-2002, 12:30 PM

My 79SC is set up for California. In addtion to the smog pump, there is also an EGR valve (bolted near the #6 intake) that has a long pipe that connects to the exhaust crossover pipe.

In fact, I am looking for this pipe. If anyone has one let me know. My next smog is next month.

GB

Jgordon · 06-27-2002, 01:41 PM

Dan, Tony -- I have an 89 Carrera from CA, and I asked my wrench the same thing. He said that he asked a dealership, and they said that Porsche never made different chips for CA. He could be wrong, but he's pretty knowledgable, and the dealership inquiry convinced me. There was a thread on this a while back where the same issue was raised (no one knew for sure); that's what prompted me to ask the wrench.

Jared

APKhaos · 06-27-2002, 02:14 PM

OK... lets resolve this CA-specific chip issue. Its been confirmed by several solid sources, but I'm feeling sporty, so.....

The CA-delivered stock DME chip is 1267355180

Anyone have the numbers from a stock 84-86 chip from a non-CA delivered car??

Jgordon · 06-28-2002, 04:25 AM

I'm still curious.......

85eurocarrera · 85eurocarrera's Garage

I dont know about the california stuff but I have an observation to share.

I have a 85 euro car with a weltmeister chip installed. The car came with the stock chip (so I thought). #1267355180. I put that chip in the other day and car ran like crap. I saw another thread recently with all the Eprom? #'s. It looks like my chip is for an 86 which I figured is no different than my 85.

Maybe I should have the stock euro chip? Can I get one of these ordered through the dealership or Pelican?

Thanks,
Joe

APKhaos · 06-28-2002, 07:45 AM

Joe,
the ROW 3.2 is a very different animal - try 10.1 compression ration v 9.5 for the US version. The DME mapping is goint to be very different, so no surprise that the stock US chip runs poorly.
Not sure if the chips can be ordered separately from dealers sources.

Vertex [and others] does a rebuild service, so it may be worth calling around to the rebuilders to see if you can find a Euro chip for 84-86.

724doorE · 06-28-2002, 09:39 AM

guys, CIS is not mechanical injection!

JWest · 06-28-2002, 09:47 AM

Actually, CIS IS mechanical injection. As the versions progressed, the lambda system was added on to control mixture with an oxygen sensor. This is just an add-on; the injection system is mechanical - fuel flow is controlled by the height of the air door moving a piston in the fuel distribution block. Fuel pressure is further refined by the control pressure regulator. Early CIS has NO electrical parts except for the fuel pump.

James

Sputterbug · Sputterbug's Garage

Just as an isolated data point, my California '85 (CO3 option code) has this stock chip:

1267355.102 (2K/24pin)

From what I have read, there is no 'other' '85 chip to distinguish CA from rest-of-US cars. Unless the map that's programmed into the chip is different even though the physical part has the same number?

Jim T · 06-28-2002, 10:49 AM

Quote:

Originally posted by James Adams
Actually, CIS IS mechanical injection. As the versions progressed, the lambda system was added on to control mixture with an oxygen sensor. This is just an add-on; the injection system is mechanical - fuel flow is controlled by the height of the air door moving a piston in the fuel distribution block. Fuel pressure is further refined by the control pressure regulator. Early CIS has NO electrical parts except for the fuel pump.

James

True, it is a form of mechanical (or hydromechanical or non-electronic) injection, but it isn't what Porsche people are generally referring to when they say "Mechanical Injection" or "MFI."

APKhaos · 06-28-2002, 10:49 AM

Intersting data point.........

My CA delivered 85 had chip # 1267355180
Sputterbug's CA delivered 85 has chip # 1267355102

Sputter - the chips themselves are simply 2Kb EPROMS. The specific fuel/ignition maps loaded into the chips is what matters - that should be signified by the taped-on number on the chip.

The fact that there are two numbers supports the idea that there are two stock maps for the same 85 3.2 DME, but does not help identify which is which. Now we really need you guys to post the stock chip numbers from your 85 Ca and non-CA cars. Lets get this mystery solved!!

JWest · 06-28-2002, 12:25 PM

This is stupid to argue about, but just to be complete, APKhaos was rebuked not for saying "Mechanical injection" or "MFI" but "CIS mechanical injection on the SC" which is 100% correct (and an accepted statement among "Porsche people"). 724doorE's statement gives the impression that CIS is not a mechanical system (and therefore must be electrical might be the thought from a newbie).

While some people may confuse the two and 724doorE was trying to be clear the MFI and CIS are not the same thing, I think more confusion was created by even mentioning MFI as the context was a 911 SC.

Don't take this as rude, just trying to make the facts clear.

APKhaos · 06-30-2002, 05:17 PM

Bumped, but for a good cause..........we should know this fact!
C'mon you 85 owners - get your old stock chip out and give us the numbers, and where [CA or non-CA US] it was delivered.

My CA delivered 85 had chip # 1267355180
Sputterbug's CA delivered 85 has chip # 1267355102

The fact that there are two numbers supports the idea that there are two stock maps for the same 85 3.2 DME, but does not help identify which is which.

Now we really need you guys to post the stock chip numbers from your 85 Ca and non-CA cars. Lets get this mystery solved!!