Engine Masters' Air Filter Test

General engine tech -- Drag Racing to Circle Track

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DaveMcLain
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Engine Masters' Air Filter Test

Post by DaveMcLain » Mon Nov 13, 2017 8:49 am

I saw this video over on Youtube and I thought it was very interesting. Their results seem to be very similar to what I've observed on my own but I've never tried the velocity stack. In the past I've seen that putting the carburetor top way down in a hole using a spacer under the filter base can be very bad for the fuel curve. Interesting stuff none the less:

https://www.youtube.com/watch?v=EkpsydS8JXI

RevTheory
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Re: Engine Masters' Air Filter Test

Post by RevTheory » Mon Nov 13, 2017 10:20 am

Definitely interesting. I'm surprised that big block didn't swallow some of those filters, lol.

pamotorman
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Re: Engine Masters' Air Filter Test

Post by pamotorman » Mon Nov 13, 2017 10:40 am

I wonder if the length of the bowl vents caused the problem with the dropped bottom air cleaner being too close to lid ??

lefty o
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Re: Engine Masters' Air Filter Test

Post by lefty o » Mon Nov 13, 2017 10:45 am

time for the salad bowl.

Krooser
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Re: Engine Masters' Air Filter Test

Post by Krooser » Mon Nov 13, 2017 10:48 am

lefty o wrote:
Mon Nov 13, 2017 10:45 am
time for the salad bowl.
Would the choice of dressing make a difference?
Last place in the B-main is better than anyplace in the grandstands...

Zmechanic
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Re: Engine Masters' Air Filter Test

Post by Zmechanic » Mon Nov 13, 2017 11:02 am

Krooser wrote:
Mon Nov 13, 2017 10:48 am
lefty o wrote:
Mon Nov 13, 2017 10:45 am
time for the salad bowl.
Would the choice of dressing make a difference?
Depends if the dressing is leaded or unleaded

plovett
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Re: Engine Masters' Air Filter Test

Post by plovett » Mon Nov 13, 2017 11:24 am

I thought the most interesting result was the K&N filter lid with the sides taped shut. It was kind of like a short wide velocity stack.

paulie

Krooser
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Re: Engine Masters' Air Filter Test

Post by Krooser » Mon Nov 13, 2017 11:28 am

One of the engine builders I know told me they dyno tested those 'filter tops' and the K&N 'knock-offs' just killed the HP while the brand name one did about as expected... just a little better than none.
Last place in the B-main is better than anyplace in the grandstands...

racinnut15xm
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Re: Engine Masters' Air Filter Test

Post by racinnut15xm » Mon Nov 13, 2017 1:26 pm

Disappointed no R2C was involved in that testing. Off to find a nice used salad bowl :D

GARY C
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Re: Engine Masters' Air Filter Test

Post by GARY C » Mon Nov 13, 2017 2:56 pm

I was wondering when they would post that vid.

Circlotron
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Re: Engine Masters' Air Filter Test

Post by Circlotron » Mon Nov 13, 2017 9:18 pm

Amsoil was the sponsor and they didn’t try out an oil bath air cleaner.
Unbelievable!

RDY4WAR
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Re: Engine Masters' Air Filter Test

Post by RDY4WAR » Mon Nov 13, 2017 9:21 pm

I was hoping to see the salad bowl without the filter media compared to the open velocity stack.

lefty o
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Re: Engine Masters' Air Filter Test

Post by lefty o » Mon Nov 13, 2017 9:36 pm

RDY4WAR wrote:
Mon Nov 13, 2017 9:21 pm
I was hoping to see the salad bowl without the filter media compared to the open velocity stack.
it probably would have won. :lol:

Circlotron
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Re: Engine Masters' Air Filter Test

Post by Circlotron » Mon Nov 13, 2017 10:58 pm

Should also have tried a properly shaped velocity stack like you see on some turbo inlets nowadays.
Image

KnightEngines
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Re: Engine Masters' Air Filter Test

Post by KnightEngines » Mon Nov 13, 2017 11:59 pm

One of the engine builders I know told me they dyno tested those 'filter tops' and the K&N 'knock-offs' just killed the HP while the brand name one did about as expected... just a little better than none.
That agrees with my testing.
'extreme top' did nothing, best for HP was a regular 3x14" K&N with a chrome lid - on a 600hp small block.

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