Velocity Stacks and More
#1
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Velocity Stacks and More
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)
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)
#4
Lead Footed
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#5
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My Air filter (came with it) already has one that takes it from the 5" opening of the filter to the 3" pipe dia
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#10
Lead Footed
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Ruf
#12
Lead Footed
Thread Starter
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
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