<VV> Jets for power
Bryan Blackwell
bryan at skiblack.com
Wed Sep 21 12:46:02 EDT 2005
No. A 390 CFM carb flows 390 CFm at its specified pressure drop -
usually 1.5" of mercury for a four barrel, as I recall. If you
increase the pressure drop, you'll increase the flow. Bear in mind
that the current Nascar Cup cars are using a 390 - I guarantee you they
get more than 390 CFM through that carb.
Flow through the jets is proportional too - more flow through the carb
means more pressure drop in the venturi (recall that pressure is
proportional to speed) which results in more fuel flow.
--
Bryan Blackwell bryan at skiblack.com
http://autoxer.skiblack.com/
Corvairs: '61 Lakewood, '64 Greenbrier, '65 Corsa, '66 Corsa
'69 Road Runner, '97 Ford F-150, '99 Neon R/T
"Why do something if you're not going to obsess about it?"
On Sep 21, 2005, at 12:06 PM, Chuck Kubin wrote:
> The size of the carb is fixed, and as such, hopw much air will flow
> through it is fixed too ( A 390cfm carb flows 390 cubic inches of air
> per minute).
More information about the VirtualVairs
mailing list