I posted this within a CL thread I started based on some questions related to velocity stacks and wanted to cover the TL gang as well.

For those that don't know what a velocity stack is or does, here's a few links and some info to help you understand how it can add more power. And best of all, it's a fairly cheap mod.

Velocity stack is not a spacer, but an airflow inhancer that can be attached at various points along the intake system. In the case of the example of the one in the URL below the filter installs over it.

http://www.inlinefour.com/blvest.html

Note, the Comptech Icebox uses this basic same approach in the molding of the airhorn as I call it. In my case, not only do I have the CT Icebox, but I've attached a 2nd larger velocity stack to the front of my ram-air set up, which is at the very front of the CT intake system that extends outside the wheel well. I'll post some pictures as soon as I get it fixed. Had a little accident and need to replace the primary CT intake tube. Anyway, I gained almost 2ths at the track with this set up.

Dyno comparison.
http://www.bpinitiatives.com/?gclid=...FQ-bnAodwxsTsw

airflow analysis image.


Here's the link to the CL thread for more details. Note my last post on Excelerate carrying the Vibrant velocity stacks.


Ruf
02 WDP TLS Black Interior w/ Black Grill Inserts & Cleared Headlights
**1/4mile 14.46 @96.07MPH - 14.23 corrected (45-70mph test - 3.5 secs)
17x7 Konig Appeals SMF – 16.8lbs each
P225/45ZR-17 Bridgestone RE960 AS - (Falken Ziex ZE-512s for track)
CT Icebox, Custom RamAir, CT Sways & Springs
3nd Gen Innovative Motor Mounts – Front & Side Only
Bored out Intake & TBs, Mugen Cooling Mods & Thermoblok
Ceramic Coated XS Headers & Random-Tech Hiflow CAT
NEO Anti Freeze & 5w-20 oil w/Militec-1
Tranny #3 Installed 11.17.2008

Note: (**before headers, Hi-flow CAT, IMMs, Bored out Intake & TBs)

 

I knew they were good, but 10 whp???

 

do you have pics of your ram air set up? im curious

 

Not at this point. As mentioned in the CL forum I've had a bit of an accident and have to replace the CT lower part, which is on order. As soon as it gets in I'll fix it and post some pics.

Ruf

 

My Air filter (came with it) already has one that takes it from the 5" opening of the filter to the 3" pipe dia

 

^what brand filter do you have?

 

are you using the stack you linked from inlinefour?
thanks for the info, now waiting for pics

 

btw...weapon r n dragon both have filters specifically for ram air...they have a ram air kit...

 

Something i bought years ago, its a K&N re-badged as an akimoto

 

No, it's a cheaper version from Spectre Performance that I modified to fit over the airhorn of the CT part. It effectively increased the opening by about 20%. That and the placement is what I contribute to a 2 tenth gain in the quarter mile. I'll post the pics once I get the CT replacement part.

Ruf

 

Any idea roughly how much gain in whp with your setup over the CT Icebox alone?

 

Since I don't have a dyno, it's a guesstimate.

The CT Icebox according to dynos is about 14hp, and that dropped me about 1 tenth of a sec. Adding the ram-air with larger velocity stack dropped me almost another full tenth. So my guess is it's about 10hp or so, which is somewhat supported by the dyno I found.

Another note is that the velocity stack mod produces HP across the powerband, and the ram-air benefit increases as vehicle speed increases, so it's hard to produce dyno results.

Ruf

 

hmm... I've wanted to start a post about t his a long time ago.. I've always had a big velocity stack on most of my cars and works perfect

 

how would i get that to work on an Injen CAI? Get the Blox filter as well and cram it in there? lol

 

just go on ebay, look up velocity stack and get the right size for your intake piping... most of those on ebay come with the right filter too...

 

http://cgi.ebay.com/ebaymotors/BLOX-...Q5fAccessories


pretty much that.. to right size of your piping..

I'll be ordering mine, next paycheck