Straight from Holley:
"In the United States, most carburetors are rated in flow capacity at a test
pressure of 20.4" of water."
(A 650CFM carb does NOT flow 1000+CFM.)
- Bernd
> I posted this on the DML, but for those who may not be on the DML list, here
> it is.
> Matt
>
> > -----Original Message-----
> > From: Barret, Matt
> > Sent: Monday, March 12, 2001 10:17 AM
> > To: 'matt@aol'
> > Subject: Final flow numbers, 4.7L 68mm Stage I TB
> >
> > I've got the FINAL flow numbers for the 68mm Stage I TB, I talked to
> > Hughes Engines again this morning and Dave was able to squeeze about 30
> > more cfm out of it! I have listed below flow data at 10" and at 25",
> > just for you Bernd! ;)
> > I asked Dave about the 10" test results, he says most Carburetors you see
> > are done at 10", so a 650 cfm Carb would be approx. 1025 cfm at 25".
> > Dave's opinion is, we're not even close to max out on air flow!! So that
> > means, a Billet unit from Bruce is going to be the way to go, for major
> > air flow! Since I am the test mule for Hughes engines, Its only costing
> > me 75 bucks (normal $150) for their service, plus I bought the 68mm TB.
> > Total investment about 225 bucks (300 @ normal price), for a 17% increase
> > over stock. Not bad, but not GREAT.
> > I bet 300 bucks will put a nice dent in the cost of Bruce's Billet unit.
> > ;) Hey Bruce, can I get one that flows about 1000 cfm??? :)
<snip>
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