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Review: BPi Flow Stack

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Old 09-01-2006, 02:32 PM
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Default Review: BPi Flow Stack

http://www.bpinitiatives.com





pepsi sucks, but thats all hungry howies had


lamp shade?? hahahahahaa

Pro's:
First all this is very cheap. about 50 dollars shipped and about 40-45 dollars for the filter. I got the filter through amazon.com. Bryan recommends K&N Filter part# RF-1048. If you already have a short ram intake, this product is very easy to install. Just like installing a new air filter. I'm sure the same concept applies for a cold air, but i have been wanting to cut my intake to a short ram for a while now since this IS florida and it rains damn near everyday. I'm going to have to cut the filter shorter to get the stack on, but the grinder i was using was kinda awkward and thats the shortest i could get it.
From his site:
* Injection molded from PA66 Glass-filled Nylon, the same material family used for GM, Ford and others for radiator caps, induction systems, intake manifolds and other engine bay components
* Optimized Flow Stack geometry to maximize air flow rates
* Light weight design reduces overall weight compared to metal counter- parts and reduces mechanical stress on existing air induction system and mounts
* Each Flow Stack is optimized for use with specific K&N filters to maximize flow rates
* The use of Nylon significantly reduces heat soak, or the amount of heat absorbed by the velocity stack and then transferred to the air
* The Flow Stack is universal in application, limited only by the space requirements of the air filter and the ability to couple the Flow Stack to your air induction system

Cons:
I cant really think of any. It's so cheap and the theory makes so much sense that i just couldnt think of any reason why not to get it. plus i needed a new filter.

First impressions:
i had to cut my CAI to a short ram so obviously it was louder. I put the flow stack on and it growled a bit more. Power wise, i cant really tell if i gained anything. I dont want to misinterpret sound for power so i'm going to wait for the next time im on the dyno, which should be at the next Florida Prelude meet in mid October.
Although i didnt feel much of anything, the power feels more consistent and "smoother" for lack of a better term.

All in all, i'm pretty satisfied with my purchase. I was in serious need of a new filter and i figured another 45 dollars for something that really could only help would be worth the try. I'll keep everyone updated when i go to the dyno.

and now, after the intake was cut and the filter installed:




upon later speculation of this setup being used with the stock battery placement, the fitment will be very tight. It might work, it might not. I think if you cut the intake just right, you would be able to fit everything in there. BUt thats just an educated guess.


Modified by 98vtec at 11:09 PM 9/10/2006
Old 09-01-2006, 03:20 PM
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Default Re: Review: BPi Flow Stack (98vtec)

I think the same design is used in the V2 by AEM. basically increasing the surface area that the filter has.. which can only be positive for throttle response but minimal in the power catagory cause you are just making it easier for air to enter your engine not adding more air to your mix.
Old 09-01-2006, 03:22 PM
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Default Re: Review: BPi Flow Stack (Chuckles99SH)

i'm gonna do some datalogging a little later today to see if my a/f will change any from putting it on. In theory, i would think it would get leaner allowing me to add more fuel to the fire.
Old 09-01-2006, 06:06 PM
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Default Re: Review: BPi Flow Stack (98vtec)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">i'm gonna do some datalogging a little later today to see if my a/f will change any from putting it on.</TD></TR></TABLE>
Im curious to see the result.
What was your primary reason for going with the BPi stack vs the Prototype racing, or other manufacturers?
Old 09-01-2006, 06:33 PM
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Default Re: Review: BPi Flow Stack (mkazm83)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mkazm83 &raquo;</TD></TR><TR><TD CLASS="quote">Im curious to see the result.
What was your primary reason for going with the BPi stack vs the Prototype racing, or other manufacturers?</TD></TR></TABLE>


It came down to a matter of who i trusted the most. If you read through most of Bryan's posts, he has some kind of information that is helpful to readers in pretty much everything he says. i've had more contact, for lack of a better term, with him. Its kinda like the header ordeal. They all do pretty much the same thing, just a matter of what you want under your hood.

im heading out right now to test the a/f.
Old 09-01-2006, 11:15 PM
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Default Re: Review: BPi Flow Stack (98vtec)

my a/f was just a tad bit leaner than what i had tuned it to before. The two climates before and after the flowstack were the same. Cooler, not as humid as normal. I had tuned it to ~13.4 and now the a/f reads 13.7-13.8. A better way to look at this is to datalog. My wideband program can read map voltage. More air should yield higher numbers with the flowstack installed and lower with it off.
Old 09-02-2006, 11:33 AM
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Default Re: Review: BPi Flow Stack (98vtec)

good ****, its nice to see that its flowing well, is that with the filter on?
Old 09-02-2006, 01:04 PM
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Default Re: Review: BPi Flow Stack (mgags7)

nah, off. I havent cut the intake short enough to fit that monster on yet.
Old 09-02-2006, 01:09 PM
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Default Re: Review: BPi Flow Stack (98vtec)

nice review Blake. Not really sure whats it used for, but I havent had a chance to read up yet.
Old 09-07-2006, 09:17 AM
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mmmm look what just arrived

Old 09-07-2006, 09:45 AM
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ooooh, fancy
Old 09-07-2006, 09:50 AM
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Default Re: (mgags7)

big bitch, eh matt?
Old 09-07-2006, 09:54 AM
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what's the OD or the outlet?
Old 09-07-2006, 09:56 AM
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6"

blake was feeling intimidated
Old 09-07-2006, 10:04 AM
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Default Re: (98vtec)

Let's see some pics after the install.

I'll be trying this out as well
Old 09-07-2006, 10:25 AM
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Too bad i cant get one until I move my $hitty a$$ battery into my trunk.
Old 09-07-2006, 01:52 PM
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Default Re: (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">Let's see some pics after the install.

I'll be trying this out as well </TD></TR></TABLE>

ok install is done



Old 09-07-2006, 03:04 PM
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Default Re: (mgags7)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">ok install is done

</TD></TR></TABLE>

LOL


Would this fit with the battery in the stock location? (the v-stack, not your head )
Old 09-07-2006, 04:48 PM
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hell no, well not in a 4g at least, i dont know 5gs well enough to say
Old 09-07-2006, 04:56 PM
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is that you Matt?
Old 09-07-2006, 05:17 PM
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lol who else is dumb enough to take that pic?
Old 09-07-2006, 05:24 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">lol who else is dumb enough to take that pic?</TD></TR></TABLE>

point taken...lol
Old 09-07-2006, 05:31 PM
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the intake arm and the stack oughta be here tomm, and theyre instantly going on....pics will be taken
Old 09-07-2006, 05:36 PM
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Default Re: (mgags7)

so does the filter go around the outside ofthe stack?
Old 09-07-2006, 05:36 PM
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yep


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