Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

BPi FLOW STACK DYNO

BPinitiatives FLOW STACK Dyno PROVEN !


 


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Untengijutsu Squad - Racing 2011
Untengijutsu Squad racing video of 2011.





Velocity Stack - How it Works - Project Car TV
A velocity stack is a trumpet-shaped device of differing lengths which is fitted to the air entry of an engine's intake system, carburetor or fuel injection. It is designed to: Allow smooth and even entry of air at high velocities into the intake tract with the flow stream adhering to the pipe walls. Modify the dynamic tuning range of the intake tract by functioning as a resonating pipe which can adjust the frequency of pressure pulses, based on its length, within the tract. Modern engines universally have tuned intake tract volumes and associated resonance frequencies, designed to provide higher than atmospheric intake air pressure while the intake valves are open - increasing the density of the trapped air in the combustion chamber (higher compression). Modified engines often have the original air box and associated ducting removed and velocity stacks are installed as accessories. Modern fuel injection systems with a plenum and single air inlet typically incorporate some sort of radiused entrance, designed to improve power, based on air flow increases. Power gains are usually at higher rpm. In amateur and professional racing, aftermarket velocity stacks are often used, as rules allow, and gains in the order of 2% to 4% can be obtained when inlet radii and stack lengths are optimized for that engine. OEM automotive manufacturers have many regulations to adhere to. One of these is noise. A properly tuned intake tract produces a rather audible intake noise under high airflow conditions - that is commonly "untuned" to allow the vehicle to pass EPA and DOT noise regulations. The length of the stack is known to have a direct effect on a particular engine's Boosted power range. Most current aftermarket stacks are designed to be run "in" the airbox and a company that does research well will have some applications that have all the same length and some applications that have differing lengths of stacks on different cylinders. It is commonly related that "stand off" (air--fuel mix that gets pushed back out of the port, usually at full throttle / low rpm) is somehow captured by installing a longer intake pipe (stack). but, it is actually that the intake valve is closing too late and the combustion chamber is simply overfilling and blowing back out the intake port, before the intake valve closes. A longer inlet pipe will create a later intake pressure wave that will help keep the air in the chamber until the intake valve closes. The acceleration of air flow into a duct is inherently a highly efficient process and the difference between even the crudest radius inlet, and the most aerodynamic shape possible is slight, amounting to no more than a few percent. The flow coefficient of a perfect entry would be 1.0 while the coefficient for a sharp edged entry would be 0.6 and a re-entrant plain pipe 0.5. In practice these latter types of entry are never used for engine intakes. There is always some attempt to provide some radius at the entry. This means that total engine airflow would not increase by the amount suggested by these figures, which apply only to the entry alone, as the inlet end is never the smallest or most restrictive part of the system. Because the greatest losses to flow occur near the valve seat, actual overall gain from any improvement of the entry flow would be much less. In the real world, on high-rpm IR IC engine, using a minimum amount of inlet radius gives the best wave strength and a power Boost of 2% to 4% over a 3000 to 3500 rpm range. Using a larger radius, like 3/4", broadens out the resonant pressure wave rpm range, but the compression Boosting pressure wave is greatly diminished and almost unnoticed by the engine.





ALL MOTOR - 223whp B18CR and 279whp K24/K20 Dyno 2011
Nik'o built ALL MOTOR B18CR making 223whp / 148wtq Yves built ALL MOTOR K24/k20 making 279whp and 208wtq Yvesbuilt PrecisionAutoCanada tuned Untengijutsu Squad Built, not bought !





Flow Stack Dyno Test
Here is a comparison of the intake Flow Stacks. Not many people believe in the results of these, but I finally got a chance to Dyno prove them! Dyno Chart can be found here: http://i160.photobucket.com/albums/t188/covertrussian/Sentra%20SE-L/Perform ance/Intake/Flow%20Stacks/FlowStackDyno.jpg





Jo SPeed drag civic hatch dyno run
Baseline pull: 225hp 143lbs/ft tq Final pull:244hp@9800 rpm 161lbs/ft tq BLOCK: 13.5:1 coated wiseco pistons eagle H beams 85mmx89mm golden eagle sleeved b18a block stock LS crank z10 crank girdle arp hardware HEAD: ERICK'S RACING toda spec d's ported gsr head victor x i/m port match to 70mm bbk 70mm t/b supertech valvetrain w/flat valves homemade velocity stack(suck) profab header(suck) FUEL: 440cc injectors aem fuel rail blox fpr walbro 190 pump tuned on c12 DRIVELINE: itr 4.4 final drive act 6puck clutch/heavy duty pressure plate 9lbs flywheel stock axles 1st time out ran 11.8@114 on 23x8x13 bogarts/m&h BUILT NOT BOUGHT tuned at REDZONE PERFORMANCE (thank you!)





Keven Quirion TRIBUTE
A video I made for friends of Kevin Quirion. Eric ''Garrett'' doing a burnout with his AP2 S2000 in tribute to his Kevin and his orange AP2 S2000.





JDMHonda B Series ALL MOTOR STREET ACTION
JDMHonda EK4 having some fun on the street ! Keep it in the street the old guy said !





BMW 2800 3.8 m5 long velocity stacks sound
bmw 2800 with s38b38 engine weber 50s and long velocity stacks revs





JDMHonda EK4 170whp OEM BUILT B16 street racing back in 2006
Back in the day, JDMHonda EK sedan with the mighty 170whp USDM B16A and 4.7 ITR final drive having fun in the street.





JDMHonda 07 Dyno
JDM HONDA EK4 Dyno TUNING SESSION 2L S2P2 11.8CR 91GAZ





How To Install GBE Velocity Stack and Filter
Watch as our pit tech Daneille installs the GBE velocity stack and two stage air filter on our HPI baja 5B desert buggy.





untengijutsu squad yvesk24video.avi
My k24/k20 projet car.Built not bought nuff said! 3 inch Exhaust Dynomax vt muffler dtr/ssr 4-1 header





Koczeka
85.5x89 13.6:1cr Endyn IM IB ported head SMSP Header and Exhaust Rocket M25 cams AEM CAI + BPi stack 258hp





slide show diaporama untengijutsu squad jdm usdm cars
A little compilation of jdm and usdm project cars...All of these car are build by these guys not bought!!!





Untengijutsu Squad - Run what ya brung ! - Drag racing action 2010
Short video of the Untengijutsu Squad racing on the track. Remember that everything started in the street and it's our main territory. More footage next summer, also more power and more kill video on the track and on the street. Keep it on the street !





Which car is faster? Which Car is Faster?




Similar 1/4 mile timeslips to browse:

1990 Skoda Favorit : 13.546 @ 100.120
FM2000, Engine: 1510ccm Skoda, Tires: 200/510 dunlop, 145/80 matador


2003 Volvo XC70 2.5T AWD: 15.322 @ 90.247
KN,


2005 Volvo XC70 AWD: 15.410 @ 90.210
NA, Tires: Pirelli Scorpion STR


 


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