The brass bit slows the upward movement of the air valve (provides calibrated
resistance) which originates richness for accleration from idle through the
lower rpm range, it's affect in this respect beoming "less" as rpm climbs into
the higher ranges, racing carbs being mostly at WOT or sustained high rpm or
closed. However, let's let Ron Soave or one of the others that race and know
more than I in this respect expound accordingly.
To: firstname.lastname@example.org; email@example.com
Date: Thu, 11 Nov 2010 09:09:04 -0600
Subject: Bugeye/Frogeye Club..... SU question for racer types...
so I have the 1380 in the Bugeye and I still have some fine tuning to
do but I noticed one thing right off the bat, there are no pistons on
the carb caps. If you unscrew the cap there is only a rod with no
brass bit. I'm guessing that this is a go fast racer mod to allow a
much faster throttle response but is it practical on the street?
Thanks for you input,
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