RE: What Air to fuel ratio should a 16v run . ?

[Chris Coracini <Coracin@usdl.com>]

i think you should leave it like it is and get a fuel enrichment device.
 i forgot who it was, but someone made one out of a relay and a resistor
(like the TT).  it would be very easy to add a potentiometer in there so
you can adjust the full throttle enrichment.  by the way, why are you
saying it's running lean?  14.7:1 is perfect.  if it runs a little
leaner now and then, like under no load or light load conditions, that's
fine.  the only thing you don't want to do is run under high load/rpm
lean.  as long as it's between 14:1 and 13:1 under WOT, you're fine.
full power, though, is around 12:1 to 13:1.

chris
86 16V scirocco

>----------
>From: 	XXSpArCoXx@aol.com[SMTP:XXSpArCoXx@aol.com]
>Sent: 	Friday, February 05, 1999 4:36 PM
>To: 	Chris Coracini; autox@inficad.com
>Cc: 	scirocco-l@scirocco.org
>Subject: 	Re: What Air to fuel ratio should a 16v run .  ?
>
>In a message dated 2/5/99 1:41:55 AM Eastern Standard Time, autox@inficad.com
>writes:
>
><< Too rich may not destroy the engine, but it is hell on the catalyst
> which
> can overheat badly and either melt/flame something or degrade quickly.
> One failure mode is to melt the honeycomb core which will partially
> block the exhaust flow ALL the time causing power loss.
>  >>
>That doesn't apply here  I haven't had a cat in my car since about 6 months
>after I got the car. and I passed emmissions here in NY and in washington and
>in California, But the car running as lean as it is can explain why it past
>all those times.
>
>I'm not sure how much or what unit he tested it with , but considering the
>type of work and the cars he works on and the fact that the shop is at
>Ferrari
>Dealer ship in Greenwich CT he knows his stuff .
>
>He Fiddled with the car for a while and got it to run 14.7:1 range barely but
>it still runs lean some time.  with the full throttle switch its running low
>14's and sometimes high 13's but never an exact number everytime.
>
>Now the Question what fuel enrichment system should I run?
>I think Techtonics makes one and everyone knows of autotech or can I get one
>from someone else or just go to radioshack and build one .
> Or  should I just rip my cis-e setup out and drop kick the bastard and get
>the euro set up?
>
>Now I know why my dads told me not to mess with the cars fuel system !
>~Danny~
>88 16v Tornado Red
>

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