# BP Initiatives flow stack makes 5hp on the roadster **URL:** \ **Category:** SON240sx Automotive\ **Created:** [January 30, 2008, 12:19pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812 "2008-01-30T12:19:14Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 30, 2008, 12:19pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/1 "2008-01-30T12:19:14Z")
Hey guys we’ve got this new product i think you’d be interested in. So basically its a velocity staack for the end of a 3" intake that increases flow into the engine. We tested one on the roadster and here is a before and after dyno: ![http://www.ziptied.com/Coppermine/albums/userpics/10252/bpiflowstack02.jpg](http://www.ziptied.com/Coppermine/albums/userpics/10252/bpiflowstack02.jpg) ![http://www.ziptied.com/Coppermine/albums/userpics/10252/bpiflowstack04.jpg](http://www.ziptied.com/Coppermine/albums/userpics/10252/bpiflowstack04.jpg) They use a 6" filter and the stack obviously connects to a 3" intake. We’re thinking about doing a group buy and would like to use this thread to gauge intrest. The flow stack itself would be like 45ish dollars and we can also supply a filter or you can get your own. ---
**Author:** ![Fobwall](https://avatars.discourse-cdn.com/v4/letter/f/7ea924/32.png) [@Fobwall](https://forums.speedlife.net/u/Fobwall)\ **Post date:** [January 30, 2008, 12:34pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/2 "2008-01-30T12:34:14Z")
That’s wicked! ---
**Author:** ![schen04](https://avatars.discourse-cdn.com/v4/letter/s/dbc845/32.png) [@schen04](https://forums.speedlife.net/u/schen04)\ **Post date:** [January 30, 2008, 1:45pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/3 "2008-01-30T13:45:47Z")
wow thats pretty cool. i’d be interested. ---
**Author:** ![Polar\_s13](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/polar_s13/32/5572_2.png) [@Polar\_s13](https://forums.speedlife.net/u/Polar_s13)\ **Post date:** [January 30, 2008, 1:46pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/4 "2008-01-30T13:46:03Z")
Not bad at all…even though its just 5hp count me in on this, you think it will be the same amount of hp and torque increase on my SR? ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 30, 2008, 2:43pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/5 "2008-01-30T14:43:43Z")
turbo cars will see it more as increased compressor efficiency, as the inlet pressure on the turbo will now be higher, the difference between inlet and outlet pressures are smaller, thus the temperature gain is smaller intake air temps will therefore be lower. also in theory the turbo would spool faster, however it would be hard to notice in real life ---
**Author:** ![Keez](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/keez/32/5570_2.png) [@Keez](https://forums.speedlife.net/u/Keez)\ **Post date:** [January 30, 2008, 3:30pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/6 "2008-01-30T15:30:30Z")
im down for this, one thing tho. how much more if you supply the intake? and is it gunna be a cheese ass intake or a respectable one. thanks Chris ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 30, 2008, 4:57pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/7 "2008-01-30T16:57:42Z")
Filters are K&N and will be available for about 60$ ---
**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\ **Post date:** [January 30, 2008, 5:11pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/8 "2008-01-30T17:11:15Z")
How did you do the before test? I’m assuming you didn’t use the same filter as it wouldn’t bolt up to the intake with an adapter. Do the adapters come in 4"? ---
**Author:** ![CrypticNissan](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/crypticnissan/32/5663_2.png) [@CrypticNissan](https://forums.speedlife.net/u/CrypticNissan)\ **Post date:** [January 30, 2008, 5:45pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/9 "2008-01-30T17:45:50Z")
im just wondering how fitmint of a 6" filter would be in my s13… sometimes ive seen all guys can fit are those dinky lil HKS bowl shaped filters… i could fit it with a small downpipe so it dosent get crushed by the hood. not really meaning to hijack but… this is a z32 MAF install. i think its the same concept in some ways… and i think its a 6" filter base, might be a similer to this in the aftermath. but fitment is tight. > **[Z32 MAF Install SR20DET (Pics) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z...](http://zilvia.net/f/showthread.php?t=97556)** > > Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 30, 2008, 6:23pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/10 "2008-01-30T18:23:22Z")
ok so they only make a 3" stack right now but are bringing out a 3.5" version soon. So if you have a 4" inlet on your turbo it will not work for you, sorry! The previous tests were with a standard 3" K&N filter The overall diameter of the filter is less than 7 inches, which I would imagine is about the same as a HKS Mushroom filter. The filter is not as large as you would imagine, and will fit in most circumstances ---
**Author:** ![BAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bas/32/5540_2.png) [@BAS](https://forums.speedlife.net/u/BAS)\ **Post date:** [January 30, 2008, 11:49pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/11 "2008-01-30T23:49:53Z")
um… wow… comp. eff. is based on the shape of the compressor impeller and rotation speed of the compressor impeller… any gains in flow eff. would be measured in .001 bar range… and the first bend in the CAI to the compressor inlet negates any gain potential by a factor of 10… you have better gains in flow by using more advance compressor housings then any other ‘cold air’ side add on. and there are many companies out there with ‘horn’ entrance profiles, HKS, Apexi, Blitz, tonnes of ebay knock offs even. > [@Black turbo Camaro SS \> me](https://forums.speedlife.net/t/black-turbo-camaro-ss-me/15731/16): > > turbo cars will see it more as increased compressor efficiency, as the inlet pressure on the turbo will now be higher, the difference between inlet and outlet pressures are smaller, thus the temperature gain is smaller > > intake air temps will therefore be lower. also in theory the turbo would spool faster, however it would be hard to notice in real life ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 31, 2008, 12:45am UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/12 "2008-01-31T00:45:43Z")
Hahaha, I had one of those lying around I think I got it with my car back when I bought it. Ever since I wondered if it does anything. Now I know. But still… lol wtf ? ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 31, 2008, 6:29am UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/13 "2008-01-31T06:29:36Z")
are you serious thats so funny! did anyone see bas post? i thought i heard the wind blowing but i cant make it out in the hazy simpsons comic book guy looking fog ---
**Author:** ![BAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bas/32/5540_2.png) [@BAS](https://forums.speedlife.net/u/BAS)\ **Post date:** [January 31, 2008, 9:44am UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/14 "2008-01-31T09:44:16Z")
wow great rebuttal… I guess mommy’s money doesn’t buy you skills in the brain department. > [@(sun.8/13/06) Northtowns meet before twizteds house](https://forums.speedlife.net/t/sun-8-13-06-northtowns-meet-before-twizteds-house/15696/6): > > are you serious thats so funny! > > did anyone see bas post? i thought i heard the wind blowing but i cant make it out in the hazy simpsons comic book guy looking fog ---
**Author:** ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)\ **Post date:** [January 31, 2008, 9:49am UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/15 "2008-01-31T09:49:07Z")
that’s enough ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 31, 2008, 10:56am UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/16 "2008-01-31T10:56:32Z")
So should we start a group buy on this stuff guys? Let me know and i’ll buy in with the company, I want to make sure there is intrest first though! ---
**Author:** ![bing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bing/32/7211_2.png) [@bing](https://forums.speedlife.net/u/bing)\ **Post date:** [February 5, 2008, 5:37pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/17 "2008-02-05T17:37:09Z")
Sasha: “Hi I has dyno proof of…” Ian: “Your dyno means nothing, i am better than a dyno” ---
**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\ **Post date:** [February 5, 2008, 5:58pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/18 "2008-02-05T17:58:23Z")
Ian was talking about something not provable on an NA dyno… RTFT ---
**Author:** ![BAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bas/32/5540_2.png) [@BAS](https://forums.speedlife.net/u/BAS)\ **Post date:** [February 5, 2008, 6:08pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/19 "2008-02-05T18:08:38Z")
since bing likes to erase my replies I’ll just not bother to reply with anything useful. ---
**Author:** ![bing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bing/32/7211_2.png) [@bing](https://forums.speedlife.net/u/bing)\ **Post date:** [February 5, 2008, 6:13pm UTC](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812/20 "2008-02-05T18:13:32Z")
i dont erase your replies… people find you amusing and i prefer to facilitate that. you just think i delete your posts… but i never have. keep accusing me though please. [Next page](https://forums.speedlife.net/t/bp-initiatives-flow-stack-makes-5hp-on-the-roadster/112812.md?page=2)