Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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Moderator
Curtis Jacobson
Portland Oregon
(4577 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Why such a small cross-section?
Posted by: Moderator
Date: April 23, 2012 03:39PM

All the classic American V8 engines in street cars... no matter how big those engines were... originally came with small trumpet-shaped inlets.

Obviously, OEM engineers COULD have made the waists of these trumpets larger in cross-section.

Today's trivia question: "Why didn't they?"


WildcatAirCleaner.JPG


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Why such a small cross-section?
Posted by: roverman
Date: April 23, 2012 04:00PM

I have a series of WAG's. a. stand-off inversion b.adequate flow, as-is c.easier to "package" under hood d. great for "trivia pursuit"


triumphtr2
tim body
St thomas ont Canada
(87 posts)

Registered:
08/18/2010 10:21PM

Main British Car:
1954 TR2 serial # TS 110 L triumph 2 litre

Re: Why such a small cross-section?
Posted by: triumphtr2
Date: April 23, 2012 08:02PM

Whatabout Bernouli's principle? Would it make the air speed up as it came into the air cleaner chamber? Tim
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ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1165 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: Why such a small cross-section?
Posted by: ex-tyke
Date: April 23, 2012 11:01PM

Don't know why, but my '65 Vette 327 had a twin snorkel cleaner like this ebay item - small openings for sure!
'65 vette cleaner.jpg



Edited 1 time(s). Last edit at 04/24/2012 04:09PM by ex-tyke.


DiDueColpi
Fred Key
West coast - Canada
(1366 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Why such a small cross-section?
Posted by: DiDueColpi
Date: April 24, 2012 03:04AM

As far as I know it was used to muffle the intake noise and stop the pulses from disturbing the air filter.
That's why we used to flip the air cleaner lid on Moms Impala and shift the powerglide like a stick........wasn't it?


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