Almost forgot....From SuperFlow:
"On the flowbench, we set it up so it will test at 1.5" of mercury, because
that is the standard. But when you are testing boosters and things of that
type, we recommend that you test at 10" of water. Mercury has a density of
13.6. Take the inches of water and divide by 13.6 to get inches of mercury. So
you test at 20.3" of water to get the reading that Holley uses."
That's 10"hg or 20.3" water....which inch comparison are you referring to?
- Bernd
> 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??? :)
>
>
> 65mm TB (Stock) 400 cfm / 632cfm
>
> 65mm TB (Stage I) 450 cfm / 711cfm
>
> 68mm TB (Stock) 420 cfm / 664cfm (5% increase over stock 65mm)
>
> 68mm TB (Stage I) 481 cfm / 760cfm (17% over stock 65mm AND 13% over Stock
> 68mm)
>
> I'll have it back just in time for the East Coast Meet this weekend!
>
> Matt Y2K-HEMI
> '00 RC 4.7L 5spd 3.92 4x2
> 14.23 @ 94.49
>
>
>
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