Ferrari Mailing List: Re: Carb 308 smog test

[Fellippe Galletta (fellippe.galletta]

On Wed, May 13, 2009 at 11:39 PM, Doug and Terri Anderson <dnt [at] 
dock.net>wrote:

> >>Bob notes  " In contrast, my brother has a '78 Porsche 911SC.  Same year,
> >>different manufacturer.  Although it is a product of German engineering,
> >>and fuel injected, it fails smog regularly.  He has to take it to his
> >>mechanic to get the mixture adjusted so it runs like s**t, get it
> smogged,
> >>then return it to put the mixture back to a drivable setting."
>
> Hey Bob - re-read the post about your brother's Porsche.  No way is should
> run poorly.  That was the first year for the 911SC and it came with CIS -
> roughly called Constant Injection System. (CIS was around a number of years
> before)  Truth is, it aint really injection in the true sense of the word
> but a mechanical system fraught with setting the CO just right and getting
> the fuel pressures correct.
>
> That, and the poor old thing has an EGR valve buried way up in the front
> right an air pump with emissions getting scrubbed by an old oxidizing cat
> to
> clean up HC and CO. Not until 1980 did the SC engine dump the that heavy
> junk and get a semi modern three way cat with an O2 sensor diddling the
> fuel
> rich lean to make this cat work.
>
> Quite often, our older cars fall into hands of well meaning but unskilled
> folks trying to do a good job but chase the wrong device and fail to get
> the
> engine in fuel control or fail to understand the total engine Wa (in the
> terms of the ancient Japanese language).  Such is such.
>
> I have an 82 SC and chased a terrible high idle problem and a terminal
> preignition clatter (5th to 4th to pass a truck in the Nevada heat on a two
> lane road - AYIEeeeee)  for 3 years and 4 major fixer uppers until I went
> to
> Redline in Santa Monica.  Within 10 minutes he had the problem diagnosed -
> a
> twisted set of distributor vacuum lines at the throttle body (wha - - -??)
> and within 15 minutes, total, the car purred for the first time in years.
>
> Trick is find someone who you trust - who has a stable of VERY satisfied
> customers, be willing to travel (with our type of cars) or learn to do it
> our selves (I am a bit slooow now, but do enjoy working on the basics and
> getting it right - tho I get bowled over (see 82 911 saga) and have to
> resort to the professional.)  We aint seen nuthin yet - CAN vehicles with
> up
> to 7 or 8 computers, 46 (why 46?) volt systems.  The reward for these
> systems?  Over 500 hp, decent tho not great gas mileage, from a small V-8
> Ferrari engine.
>
> Onward
> DOUG
> Viva our carbed, HC stinkin' 78 GTS heh heh



Don't wanna go too off topic here, but how do you guys like the shifting on
your 911 SC?

Personally I didn't get the groove of the 915 box the 10 minutes I was
driving it. Is it sorta like the gated box for the rookie Ferrari driver
that gets rewarding with time? If so, I could mess with that!

Do like a lot about the 911 SC....one properly modded would seem to be a fun
car for low bucks.

thanks,

FG