Originally posted by Don 97 SS
Major bogus, IMHO!

A good friend of mine who use to work with Dale Eicke (famous pro stock head porter) did a test on the Tornado about a year ago. A group of guys in our dragster club got together and decided to chip in and buy one just to see what the hell it'd do. So we all pitched in a few bucks and ordered the thing... having it shipped to my buddies shop. Here's the e-mail I recieved on the tests.....

just did a very quick initial test of Tornado on
SuperFlow SF-600 flowbench

test was just on flowfixture mounted ontop of
digital Swirl-Tester ...no carb or air cleaner , test was
just to see effects of Tornado only

Results = immediately "ClockWise Swirl" was achieved
gradually raised test pressure in inches of water to
2.000" H2O where clockwise swirl maxed out my swirl meter's capacity at 16 to 18 inch/ounces of torque coming in at 2.00

thats 2.000" inches of water , swirl will be tremendous at
2.000" inches of Mercury Hg., beyond my test capabities
to measure any further increases in swirl -torque past
18 inch/ounces

quick initial flow restrictions with ONLY Tornado were NONE
no flow losses , CFM readings remained unchanged

next will begin flow testing with carb, air cleaner, intake manifold, head as total induction system

results to follow later tonight
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just finished more "Tornado" FlowBench tests

flowed Tornado on QJet and Holley 750 double-pumper
attached to Edelbrock Victor "E" SBC intake
on a GM #041x Super Stock max-ported head

Results=
absolutely "NO" difference measureable with
Tornado or without Tornado , when entire
induction system path was flow tested !

The overwhelming cylinder head's intake port
bias influenced Swirl-torque and orientation
(Clockwise or CounterClockwise)
...with or without Tornado in place made no
differences in swirl-torque or flow CFM
--------------------------------------------------

Next, removed cyl. head, intake manifold from
flowbench....then flowtested the carburetor
by itself to see if Tornado would create
measureable swirl

Results=
at most the Tornado created Clockwise swirl
approx. bouncing between ZERO and .20 inch/ounces
of swirl torque,..when measured flowing thru carb


I was pretty amazed when i 1st flowtested the
Tornado by itself on just the flowfixture
the amount of swirl torque was amazing !!!
it maxed-out my Swirl-Meter at only 2.000 inches of
H2O test pressure !

However when the entire induction system path was
flowtested with the Tornado as a "UNIT"
the extreme swirl-effect of the Tornado vanished,
completely unmeasurable on my flowbench !!
I increased flow test pressure to as much as
36.0 inches water..still no increase in any measureable
swirl induced by the TORNADO ...very disappointing !

i then had the idea to flowtest the Tornado just
on the carb by itself....i thought surely i would
see very large swirl readings with the Tornado .
Again, very disappointing, the swirl increases
were barely measureable , bouncing between
0.000 inch/ounces -to- 0.20 inch/ounces of swirl-torque
even if test pressure was increased all the way to
6.000 inches of water !

the carb bores, venturis, throttle-plates/butterflys
overwhelmingly canceled out Tornado's swirl !
even with carb butterfly all the way opened,
no changes in Tornado swirl effects.

if the carb itself is just about totally
"negating" the Tornado's swirl effects,
i can easily see why when the entire induction
path was tested , no recordable Tornado swirl effects
were seen .

Very disappointing 1st flow tests .
Will still try out Tornado on 3 dyno test engines
this coming weekend and 1/4 mile drag tests
and mileage test to follow in next weeks .
Will post results as they happen .

PS- about the only good thing i can say so far
is the Tornado did not cause a flow restriction
in all my tests . Flow CFM remained unchanged.
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