[T3] Mega Questions

[Daniel K. Du Vall]

I agree on the "ideal" and it's a fine line to ride.
There are many variables to consider in keeping high performance and fuel efficiency in the same category.
I suspect that is why many auto makers are stating to use the direct Injection now verses the port and sequential port FI. 

Daniel Du Vall
http://1peter4-10.org
http://volkswageninsanity.us


-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Jim Adney
Sent: Tuesday, November 06, 2012 8:43 AM
To: type3 at vwtype3.org
Subject: Re: [T3] Mega Questions

On 5 Nov 2012 at 21:14, Max Welton wrote:

> I've always though it might be useful to know what AFR profile the 
> stock system applied.

It would certainly be interesting, but it's bound to be primitive, although not as primitive as the ones intrinsic to carbs. Bosch was limited to the analog computer technology of the time, so the mapping had to be simple. With today's logic, it's possible to program in n dimensions with impunity.

The really interesting question would be whether an "ideal" profile exists for our engines. In my mind, "ideal" would mean max power when you asked for it, up to the point where things started to get too hot, but max economy (and min emissions) otherwise.  

--
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************

_______________________________________________
VWType3.Org mailing list - type3 at vwtype3.org http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
Contact gregm at vwtype3.org if you need help with the list.