Hello,

I'm interested in buying a BPi FLOW STACK, but I have a question... I own a Honda Civic VTi (Engine B16A2) with a Cold Air Intake AEM 2.75" which is obviously smaller than the BPi FLOW STACK 3", this is the question... Is it worth it to make the investment and buy the FLOW STACK and put them together knowing that one is bigger than the other? Will i lose hp?

» Engine Mod:
1.6 DOHC VTEC B16A2 (stock block)
Hondata Heatshield
CTR Cams
AEM adjustable Cams gear
AEM Cold Air Intake
Apexi N1 4-2-1 Header & exhaust system
Fuel Pressure Gauge Set
JDM ITR Throttle Body 62mm

Thank you in advance,

Real Ek4

 

should work fine... i have mines fab'ed up the the stock gsr intake arm.

 

BPI to stock GSR intake arm w/6" k&n here also. I was suprised to see
how well it worked. no numbers to display but impressed

 

Thanks

 

any numbers / dynos of BPi / vel stack on an AEM CAI?

Would be interesting to see the gains if any.

 

i would like also to see results of those 2 together.

 

i tried to put the bpi stack with the 6" k&n filter on my aem itr cai, It fit on the intake fine, but the filter was too big/hung too low to put the lower splash guard back on. I ended up going with a short ram setup.

You can buy coupling reducers. Search for turbo couplings, they should offer a 3" to 2.75" coupling.

imo a 3" stack on a 2.75" pipe will work fine. i mean it's only a 1/4 of an inch. regardless your not going to notice any major gain or loss with a minor intake mod.

If I were you I'd consider a sri. I didn't want to switch over either, but I'm glad I did. Now I'm not parinoid to drive in the rain

 

^^^Thank You Very Much!!!

 

any dyno?

 

http://www.racepartsolutoins.com has a 2.75 to 3.00 reducer, and its pretty cheap

 

Their is very good comparsion floating around of a short ram compared to cold air intake with the BPI flow stack.

 

Simple reducer 2.75-3"

I noticed a difference with my h22 crx setup...lil quicker throttle response...tiny bit more get up through the power band it seemed...definetly a gain of power not a loss...

My BPI and K&N filter

 

pic of filter i use on my BPI stack and i noticed a definite increase also.

 

Do it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stevieteg &raquo;</TD></TR><TR><TD CLASS="quote">i tried to put the bpi stack with the 6" k&n filter on my aem itr cai, It fit on the intake fine, but the filter was too big/hung too low to put the lower splash guard back on. I ended up going with a short ram setup.
</TD></TR></TABLE>

Here's is an alternative filter (more compact and shorter) that worked on this ITR:

http://www.itrca.com/forums/vi...light=

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Real Ek4 &raquo;</TD></TR><TR><TD CLASS="quote">Hello,

I'm interested in buying a BPi FLOW STACK, but I have a question... I own a Honda Civic VTi (Engine B16A2) with a Cold Air Intake AEM 2.75" which is obviously smaller than the BPi FLOW STACK 3", this is the question... Is it worth it to make the investment and buy the FLOW STACK and put them together knowing that one is bigger than the other? Will i lose hp?

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

We noticed a slight gain 1-3whp on my b17 with 2.75" AEM si short ram intake. I flared my intake pipe instead of using a reducer coupling though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by goforbroke &raquo;</TD></TR><TR><TD CLASS="quote">Their is very good comparsion floating around of a short ram compared to cold air intake with the BPI flow stack. </TD></TR></TABLE>

One of our retailers, HybriDynamics, has run a lot of interesting tests, including a sri to cai test with our stack. We have not published then yet, because we are gearing up for the launch of a new dyno test "database" on our site.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BryanPendleton &raquo;</TD></TR><TR><TD CLASS="quote">
One of our retailers, HybriDynamics, has run a lot of interesting tests, including a sri to cai test with our stack. We have not published then yet, because we are gearing up for the launch of a new dyno test "database" on our site. </TD></TR></TABLE>

Their is a guy on here, who multiple test with short ram and cold air intake. A bunch of different varation test comparing the two. I can't find the thread though. I believe it was on a stock K20. It was in the integra forum I believe, my memory sucks.

 

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

Here's is an alternative filter (more compact and shorter) that worked on this ITR:

http://www.itrca.com/forums/vi...light=</TD></TR></TABLE>

O....do you have the part number for that filter I'm going to be purchasing your stack and that filter looks perfect

 

RF-1009
RU-4600
RP-4600
RT-4600

These are all 4" height, but the RF-1009 tapers to a 5" OD top where as the others taper to a 4.5" OD top

RF has chrome top, RU is rubber top, RT is titanium top, RP is Carbon Fiber top.

 

so in that thread is just an "illusion" that the filter looks so compact

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 9WON4 &raquo;</TD></TR><TR><TD CLASS="quote">so in that thread is just an "illusion" that the filter looks so compact</TD></TR></TABLE>

I am not following you, what are you asking?. "compact" is a relative term.

 

Sorry on the pic on the thread, that filter "looks": to be about half of the length of the other ones that work with your stack.

is that the case or is just the pic that makes it look that way

hope I cleared it up.....a.k.a for my car the shorter the filter is (in overall length) the better

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 9WON4 &raquo;</TD></TR><TR><TD CLASS="quote">Sorry on the pic on the thread, that filter "looks": to be about half of the length of the other ones that work with your stack.

is that the case or is just the pic that makes it look that way

hope I cleared it up.....a.k.a for my car the shorter the filter is (in overall length) the better</TD></TR></TABLE>

Yes it is more compact. It 2" shorter in length, when compared to the RF-1048

 

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

Yes it is more compact. It 2" shorter in length, when compared to the RF-1048</TD></TR></TABLE>

sorry for not being clear in my initial question. So next question what is the part number for that smaller filter. thanks for the help