[DeTomaso] starting cold without the use of the choke (NPC)

[Will Kooiman]

My Pantera with Webers runs best with the idle screw out 1 turn.  It also
idles well cold, or as cold as it gets in Miami.

My Cobra with a 428 and a tunnel wedge doesn¹t idle well until it runs for
about 2-3 minutes, and it isn¹t nearly as responsive as it is after it
warms up.  It has a large plenum, though.  It¹s essentially a small/flat
tunnel ram.

My point is I agree with you in concept, but it matters less with Webers,
since the fuel is directly over the intake valve, and it really matters
less in a warm climate.


On 12/27/16, 5:43 PM, "DeTomaso on behalf of Pantdino via DeTomaso"
<detomaso-bounces at server.detomasolist.com on behalf of
detomaso at server.detomasolist.com> wrote:

>   On the Ferrari forum there was a discussion of how best to start a
>   Dino-- 6 cyl, 3 Weber carbs (with enrichment valves / chokes)
>
>
>
>   The majority say "I never use the choke.  Just give it several pumps of
>   gas and after it fires keep the revs up until it idles OK."  I posted
>   that car and carb companies have not been making chokes / enrichment
>   valves for decades because they had nothing better to do, and it didn't
>   make sense to me that the jetting that supplies the correct amount of
>   fuel to a hot engine can also be correct for a cold engine.
>
>
>
>   Am I wrong?  Seems to me their technique is going to cause premature
>   wear as you rev a cold engine then give you poor drivability until the
>   engine is truly warmed up, but they seem to think not.
>
>
>
>   Jim Oddie
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