Author Topic: scoop out in the air or covered  (Read 4206 times)

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Offline saltracer1

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scoop out in the air or covered
« on: June 06, 2016, 06:30:43 PM »
we have a 150mph car hopefully, and I was wondering if it would be better to have the supercharger scoop out in the open air or cover the whole thing for better aero and just breathe the air underhood? Small B&M blower on flathead ford. thanks

Offline SPARKY

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Re: scoop out in the air or covered
« Reply #1 on: June 06, 2016, 08:53:56 PM »
what your options are may be covered by rules  :roll:
« Last Edit: June 07, 2016, 12:41:27 AM by SPARKY »
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

Offline saltracer1

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Re: scoop out in the air or covered
« Reply #2 on: June 06, 2016, 09:31:55 PM »
XF/BGALT, and I'm checking the rule book now. thanks Phil

Offline tortoise

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Re: scoop out in the air or covered
« Reply #3 on: June 06, 2016, 10:57:04 PM »
Third option not mentioned: duct to grille.

Offline 836dstr

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Re: scoop out in the air or covered
« Reply #4 on: June 12, 2016, 04:51:16 PM »
A lot of results depend on design. Unrestricted airflow has more effect that aerodynamics at your proposed speeds. Simple is better.

I ran a single carb 301 Chevy in a "Brick" ( I mean Street Roadster). I made a scaled down version of a Pro Stock Scoop. We ran a best of 168 MPH. I "designed" and made a thru-the grill system and went 25 MPH slower. Removed the cover on the hood and modified the front of the plenum, stacked two 11 inch air cleaners (thanks to Mike & CARQUEST) into the air stream and went 170 MPH.

A blown engine is certain to be a little different on how it likes to see incoming air.

Sometimes we tend to overthink things.

Tom
« Last Edit: June 12, 2016, 06:43:25 PM by 836dstr »