Not much mud around here but it sounds like great fun :)
Enclosing the whole carb would also act on the float
chamber and compensate for the increased pressure.  
 
(My apologies for the double line spacing in my posts,
I'm still trying to work out why it's happening. I use
Incredimail instead of Outlook these days and
send as plain text???)  



-------Original Message-------
 
From: Falcon Wireless Tech Support - KF4HAZ
Date: 03/22/05 15:33:01
To: Microcontroller discussion list - Public.
Subject: Re: [OT]fancy think: add a fan in air inlet of car
 
 
Actually much has been done using blower fans 1000cfm+ on carbs in the field
of mud racing.
In mud racing the air is usually pulled from above the dash on the passenger
side and pushed out through 1 or 2 4" hoses to a sealed chamber around the
carb this reduces the chance of pulling muddy water into the engine. Typical
fan ratings for the 2 hose system would be something like 2 fans rated
850cfm @ 10-15 psi.
The fans are usually connected to a WideOpenThrottle switch as most mud
racers only know two speeds (WOT and off).
I do not know if they have mud racing in your area, it well may be a 
red-neck" sport, but if they do talk to some of them for pointers (but keep
in mind that the loosest screw in most mud trucks is the nut behind the
wheel)
 
KF4HAZ - Lonnie
 

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