Thread: DEMON carbs
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Old 12-30-2002, 08:32 AM
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Tom Vaught Tom Vaught is offline
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Quote from 455 4+1:

"Machining swarf in the secondary needle and seat causing flooding when pump first turned on and secondary squirter hole burred over and mostly blocked causing reduced pump shot.

Thought quality control and supposid "wet flow testing" of each carb should be better for $1500
(what they cost here in NZ)


Unfortunately, ***** happens, (it seems like more often with the DEMON stuff than other carb builders but they are more of a production shop now). No excuse for the machining pieces but several of our members in the local area had the
same contamination. The squirter deal I think is
more uncommon.

Quote:

"Carb had a slight flat spot just off idle (std pink cam and 031 shooter) change to a green cam seemed to sort things out (more lift per throttle opening earlier) pink cam seemed a little "lazy" at loading the shooter straight off idle."


This is more of a tuning suggestion than a carb
complaint. Tuning of pump shot is vehicle/engine
specific.

Quote:

"Whatch pressed in booster rings on annular discharge models. After one meeting one came loose!!!!! and almost worked its way right out.

Am sure my engine would have loved ingesting that!!"


I buy the Holley annular booster pieces and you
have to use a vice normally to press them together. Once they are together, it is extremely
hard to get them apart. Apparently Barry Grant did not use the same specs on his stuff. You
would have a really bad day if one came out, but
this is true of any Holley or Grant style booster
vs an AFB or Rochester booster (2bbl) which can't come out. Tom V.


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