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Visualizza Versione Completa : Small block 32 valvole!!!!



alain
04-01-2005, 07:55 PM
Immagine:
http://www.corvetteitalia.i t/public/data/alain/200541195427_324.jpg
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Altra cosa interessante sono queste teste con 4 valvole per cilindro, ma parlando con il mio amico Joe pare che siano molto performanti, ma molto complicate da gestire dopo!

Dyno Proven Horsepower & torque

To illustrate the potential of Arao Performance 32-valve Cylinder Heads, we dyno tested a 5.7L Chevy small block with 10.0:1 compression, LT-1 cam, single-plane intake and 750 CFM carburetor. We tested the Arao head against a ported and polished, well-known brand 2-valve aluminum head with 2.08" intake valves and a stock open-chamber iron head

HORSEPOWER
The chart shows the Arao Performance 32-valve heads made 474 HP @ 6000 RPM, 159 more than the high-end 2-valve aluminum head (Brand X) and 203 more than stock iron!

Immagine:
http://www.corvetteitalia.i t/public/data/alain/200541194726_32 horse.jpg
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TORQUE
The dyno also reveals a broad, flat torque curve with a peak of 437 lb./ft @ 4500 RPM. In fact, 85% of peak torque occurs all the way from 3000-6000 RPM!

Immagine:
http://www.corvetteitalia.i t/public/data/alain/200541194823_32 torque.jpg
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RPM Range
The unique valve gear arrangement made possible by Arao Performance's patented head design (US Patent #5,007,387) allows rev's to over 9000 RPM without use of exotic valve train parts or freakish valve spring loadings.

FLOW CHARACTERISTICS
The graph shows the intake flow capability and higher volumetric efficiency of these heads as compared to a highly developed aftermarket 2-valve and a stock iron unit. The large flow openings are more beneficial to acoustical or ram tuning, creating even greater volumetric efficiencies during engine operation.

Immagine:
http://www.corvetteitalia.i t/public/data/alain/200541195033_32 flow.jpg
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Immagine:
http://www.corvetteitalia.i t/public/data/alain/200541195248_321.jpg
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Immagine:
http://www.corvetteitalia.i t/public/data/alain/20054119537_322.jpg
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Immagine:
http://www.corvetteitalia.i t/public/data/alain/200541195320_323.jpg
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info@araoengineering .com

Stroker
04-02-2005, 01:34 AM
Queste, invece, sono stato lì lì per comprarle......
ma un uccellino mi ha detto che sono cagate!!!!!!!!! (spiegandomene il motivo)

...quindi, il buon Mr. Arao se le tiene per sè!
(per inciso è roba vecchia che la Arao Engineering ha rispolverato da un fallimento del vecchio preparatore)

Ciaubbelli!

temugin73
04-02-2005, 03:40 AM
Buon vecchio omonimo, non puoi buttarla lì e non spiegarla!:D
Dettagli!!![?][?]

Stroker
04-03-2005, 03:08 PM
In due parole...

GRANDI PROBLEMI ALLE GUIDE VALVOLA!

oops.... erano 5 le parole!:D

alain
04-04-2005, 11:41 AM
Un uccellino Svizzero? hehehehhe

Stroker
04-04-2005, 10:22 PM
Javol!

Ray Stinger
04-07-2005, 06:56 PM
...... siete troppo avanti..... l'ho sempre detto !

:)