Re: [DML] Lambda system
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Re: [DML] Lambda system

You've basically just rattled off a load of differences. With the 
exception of the idle control takeoff, none are "improvements" and many 
are because it's from a LATER engine, like the ally metering head, whose 
only real advantage is weight and that it doesn't go rusty. To all the 
others...... so what?

Just for you Bill, check out ebay item 180195866189

Oh look - CIS...

For everyone else, here's a direct link to the photo of the engine

And a very clear example of how cruise control  was done on the early 
PRVs by Renault.

Late water pump, oil breather catch tank, steel fuel lines (which are 
much more annoying to work with and just as unreliable because they 
corrode). There are SO MANY variations on the PRV engine, and all have 
their flaws and advantages. This is a 2664cc engine too, so I won't be 

You're wrong about european cars "running richer". Fuel economy always 
improved on my stage 1 deloreans.


content22207 wrote:

> The Renault distributor is made of aluminum rather than cast iron.
> Uses barbs rather than banjo bolts for the lines in and out.
> On the fuel/air mixture unit, the aux air takeoff (which can double as
> a CIS takeoff) is a fixed barb -- no vacuum leaks.
> My fuel/air mixture unit resembled B-27 -- one single assembly (versus
> a baffle & separate throttle plate assembly), no upper screw for a
> microswitch on the throttle plate linkage, regular balancing screws
> rather than shear heads, PCV via the U pipes rather than the cold
> start tube (which is how the PRV is pictured in the DeLorean Workshop
> Manual BTW), and of course a ported barb under the throttle plates for
> traditional spark advance. The throttle plates were solid too (no
> deceleration valves).
> Don't forget that Eurospec K-Jet uses different CPR's (Series 038
> seems very common). Final control pressure is the same, but they start
> lower and take longer to get there.
> Eurospec ignition distributors have a much more aggressive spark
> advance curve, so base time is set correspondingly closer to TDC.
> My fuel injectors had male threaded flare fittings on the end versus
> female threads for banjo bolts. Of course the fuel lines were flared
> steel (fuel distributor ends had banjo fittings soldered on). I
> suspect the injectors sprayed more fuel than F Series.
> Don't forget that Eurospec compression is 9.5:1.
> Basically, European PRV's run richer than their North American
> counterparts, compress the fuel mixture more before igniting it, and
> tend to rev more freely thanks to the broad advance curve.
> Bill Robertson
> #5939
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