This thread's purpose is to compile the information gathered in my 'research' (i.e. Dyno time), into a search friendly topic, pertaining to gains/variables of using the BPi velocity stack.

Initial modifications:

- TODA header
- Omnipower testpipe
- DC Sports 2.3/8" exhaust
- AEM CAI
- Stock ECU/No tuning

Base line:

169.83whp/121.28ftlbs


Numbers after adding my 'home grown' cut down AEM 3" CAI, to an SRI, with a BPi velocity stack, and K&N filter. The exhaust, and all other modifications remain the same, still no tuning.

174.88whp/128.71ftlbs


After installing new OEM spark plugs, and running it from operating temperature, 5 times each (i.e. Letting it cool down to the same level as prior testing variables). Both with the K&N filter installed on the stack, and without the filter on the stack. Still no tuning.

Red: BPi stack without K&N filter
Blue: BPi stack with K&N filter

183.70whp/132.98ftlbs - WITH FILTER


Over all, going from an initial 169.83whp/121.28ftlbs, to 183.70whp/132.98ftlbs, by adding a BPi velocity stack/K&N filter, with no tuning, is money well spent.

Comparative tests to come:

- AEM 3" CAI with BPi velocity stack/K&N filter, and without K&N filter.
- 3" SRI with BPi velocity stack/K&N filter, air boxed, and heat wrapped.
- Tuning with Hondata S200.

These tests are soon to come.

EDIT: If you're like to know where to buy one of these setups, refer to This thread, best $95 I've ever spent on a car.


Modified by GO-FIGHT-KILL at 7:34 PM 2/21/2008

 

Nice JorZED, someone let this man borrow a Mugen intake, though I doubt the number will beat the cut AEM with BPI vs... still would love to see...

 

That would be an interesting test... Hmmm... Anyone?

 

I would send you mine, but I just got it in, and it was a pain in the ***, for me... heh

Plus it's brand new.

 

I hear ya'.

Well, the dyno's not going anywhere, if someone wants to send me their Mugen intake, I'd be more than happy to test it, and see how it stacks up to my $100 'home grown' setup.

 

good research i took my car out for a stroll last night and with the bpi stack and k&n i figured an additonal 8hp on the butt dyno..

but in all reality, my bpi set up on the stock arm pulls hard up on the top end.

 

Hey Mikey~!! How you been d00d? Sorry for the OT.

 

sweeeeeet thread! BPi velocity stock FTW!

 

nice thread man, pics of the intake

 

now add nitrous or a turbo and see what happens

wish I had access to a dyno, id spend all day on it lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 401tuner &raquo;</TD></TR><TR><TD CLASS="quote">nice thread man, pics of the intake </TD></TR></TABLE>

How's video?



<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">now add nitrous or a turbo and see what happens

wish I had access to a dyno, id spend all day on it lol

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

Haha, once I have a reason to, I'm sure I'll spend all day on it.

 

Impressive gains, I will have to look at picking one up for my R

 

hmmm...this makes me think twice about a mugen intake

how much can i get a bpi velocity stack with k&N filter??

 

It'd be nice to see if there was any change in A/F. Good numbers!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by floatfisher &raquo;</TD></TR><TR><TD CLASS="quote">hmmm...this makes me think twice about a mugen intake

how much can i get a bpi velocity stack with k&N filter??</TD></TR></TABLE>

Right here.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2vu &raquo;</TD></TR><TR><TD CLASS="quote">It'd be nice to see if there was any change in A/F. Good numbers!</TD></TR></TABLE>

I'll look at them tomorrow when I'm at the shop.

 

Very nice numbers!! Now i'm thinking about getting rid of my icebox and slapping the bpi stack and filter back on. :-)

 

Pics of hacked up aem.

 

i dont have the dyno charts but will look for it

old setup was :
2.0L B18c1 11.5 compression
Portflow Gsr head M22x
Victor X IM , 70mm TB , SMSP b19 header
AEM ITR CAI cut to short ram
94.9 degree F

peak gains =
BPI with K/N 226 whp 149 tq
BPI w/out filter 233 whp 153 tq

no gains before 4.5k
3-5 whp 2-3 tq from 5 to 8k
peak #'s on top was at 8800 rpm

dyno was back to back with same tune with 91 oct and full exhaust .. a/f did not change

will try to find dyno chart and post it

 

i ordered it but it got sent somewhere else! just my luck! cant wait to try it out!

 

Try out a new signature...

 

*disclaimer*

I'm all for new info

*/disclaimer*

How about the difference when heat soak is affected? I'm sure as the intake temp rises due to the SRI config that the affected HP numbers go down.

Good info none the less.

 

Dave don't you have an intake for him to Dyno?

 

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

How about the difference when heat soak is affected? I'm sure as the intake temp rises due to the SRI config that the affected HP numbers go down.

Good info none the less. </TD></TR></TABLE>

Yep, I'm interested in the #'s with the AEM CAI and velocity stack, but none the less velocity stack FTW

 

i had an aem CAI and it made less torque than a short ram , same hp . in florida tho ,

 

thats awesome.

you can borrow my mugen intake if you want to drive up and get it.