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  #1 (permalink)  
Old 05-20-2011, 06:35 PM
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Dave sent you a email.

G.
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Old 06-03-2011, 03:21 PM
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Default Everything's done and it's chassis dyno time.

Well.... I picked up the modified air cleaner lid from the machine shop with the 2010-11 Chevy Malibu V6 K&N air filter in it. I also did some mods to the base to lower it and fit a 2.25" tall S&B filter in it. That replace the 1 3/4" tall K&N.

I took it for a test drive today and SOTP says it's definitely quicker. Both sets of vacuum secondaries snap open much sooner and much quicker. The Dyno will tell the though...

Here's the old setup...


Here's the modified base, it allowed for almost 1/4" drop.


Here's the new lid with the embedded filter.


Here's the bottom of the filter lid.


The finished product.


Good or bad, I'll post the results of the dyno session.
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Old 06-06-2011, 11:43 AM
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Default Well, the dyno numbers weren't kind to me...

I hit the chassis dyno today... All runs were kept with the same amount of cool down and other similarities

The numbers weren't kind to me. In fact, I think the corrected numbers are low as the operator wasn't sensing temp and humidity at the carbs. This is a topic for another discussion though.

Run #1 was open carbs, no filters at all.

Run #2 was with the old restrictive filter.

Run #3 was with the new filter setup.

Here's the SAE corrected graph.



Here's the STD graph.



It appears that open carbs tends to generate some inlet air turbulence, at least that would be my explanation of it being the lowest number.

The run with the new filter indicates marginal, although measurable gains. Given the hot dyno operation I would imagine the gains becoming more marked with the open road's cooler (and denser) temps.

Those who say the "unsealed" hood scoop actually blows air out instead of sucking it in is mistaken, at least in my case. After a 10 minute 60 mph jaunt down the road during 78 deg temps I opened the hood to feel the air cleaner top. It felt like it was very cool, around outside ambient temp. I then tried it at 35 mph with the same results. This puppy sucks outside air going down the road.

All in all, I would call new intake a minor success. Cooler temps will tell me just how minor of an improvement it is.
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Old 06-06-2011, 11:56 AM
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Well, it's a damn fine looking filter, regardless.
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Old 06-06-2011, 12:05 PM
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Actually looks pretty decent from here. You picked up power and torque in many spots throughout the curve - not just at peak. The 8HP is pretty good for a simple air filter change.
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Old 06-06-2011, 06:08 PM
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Didn't you loose 8 HP with the filter changes????
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Old 06-06-2011, 06:10 PM
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Quote:
Originally Posted by DanEC View Post
Didn't you loose 8 HP with the filter changes????
No, he just put the "runfiles" in the order of 1, 3, 2 to make it difficult for us.
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