Pete,
Flow based vs. suction based carb balancing.
I too have a flow based meter (again that I used on the
MG Midget SU carbs) and then switched to a suction
(vacuum port) based meter.
It is true that both methods measure air flow into the
engine but the suction based method is a bit more
accurate since it takes the readings after the airflow
has passed the venturi, has atomized fuel in the mix
and is closer to the destination.
So, it is really a measure of accuracy...but the less
accurately they are balanced, the shorter the life of
the engine (from rough running, excess deposits, etc.).
Also, remember you are running your car at 25% to 50 %
max power on the motorway, but in cruise you are
running the aircraft engine at 50% to 85% max
power...more efficiency but more wear and shorter life
- anything you can do to prolong it, is for your wallet
and your safety.
Dean Wiegand
Sacramento CA USA
dwiegand@surewest.net
kit A259
-----Original Message-----
From: forum-owner@europaclub.org.uk
Peter Zutrauen
Subject: Carb Balancing - Flow
Balancer?
I was wondering what is wrong with using a simple
flow-based carb
balancer? Years ago when I was playing with my
'hopped-up' VW beetle
with dual carbs, this tool worked very well to balance
the carbs. Just
dial the restrictor to center the ball on one carb,
then move to the
other carb and check the ball and adjust accordingly. A
few iterations
and you're done!
Here is the type I am referring to:
http://www.datsunroadster.com/PIC_PAGES/NEW_PARTS_PIC_P
AGES/999-08.htm
Opinions?
Thanks,
Pete
A239
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