We offer two versions of this elbow, a standard size elbow/plenum and a "big"
elbow/plenum. You are viewing the "big" elbow. The big elbow is designed
to accomodate our VMP
Dual 72MM TB, we found that the 66/67MM stock-sized elbow opening limited
airflow with a dual bore TB so we made an elbow to accomodate a larger one.
This is a totally re-engineered replacement elbow that flows more air and has
the fit and finish of a stock piece.
Gains of 20-40HP are possible depending on your boost level and TB combination.
This elbow uses a stock bolt pattern so 60MM, 65MM, 66MM, 67MM, 72MM, or Monoblade
throttle bodies will also bolt right on.
Our elbow has a high flow D-port shape that moves the most amount of air with
with the least amount of modification to the blower inlet:
The lower floor on the "big" elbow takes advantage of the extra area
inside the TVS, but can also be used on heavily ported stock blowers.
VMP was the first to make over 700 rear wheel with a TVS (real SAE corrected
Dynojet numbers), and we found a way to take the TVS even further with the right
inlet design. Our own TVS car makes 748RWHP
with stock cams and stock engine.
With all the dyno testing we have done with GT500s and TVSs, modifying the
inlet elbow was a no-brainer, as it was the next restriction in the system after
the throttle body. Testing that we did years ago showed no power difference
between 65, 66, 67, and monoblade throttle bodies, indicating the restriction
lay elsewhere.
Our elbow has been optimized in CFD (computational fluid dynamics) to optimize
the turn and airflow into the blower, by keeping airflow laminar and normalizing
airspeed throughout the elbow.
The innovative D-port design of our elbow will only require a small amount
of material removal at the top and bottom of the inside corners, about a 1/4"-3/8"
worth of material removal in the corners is required, which takes the stock
or TVS blower opening from an oval to a D shape.
Opening up the tiny oval hole in the stock and tvs blowers is essential to
getting more air into the blower and making maximum power, it would be nice
if we could skip this step, but it is required to see more than just a few HP
gain. Most people can do this at home if they take their time and use a dremel
with a good bit or a carbide burr from harbor freight. A file will even work
if you are a very patient person.
In addition to power gains from a less restricted blower, we also saw a decrease
in blower discharge temps (as measure before the IC with a K type thermocouple
probe), this is great for road racers that want to reduce heat buildup out on
the course, or aggressive street drivers.
Key Features:
- Developed in the same CAD system Ford Motor Co. uses to design OE components
- Inlet geometry optimized with Computational Fluid Dynamics, extensive flow
work, real world dyno testing and analysis
- Patent pending D-port design
- Factory fit and finish
- O-ring grooves makes installation easier, no RTV needed
- Requires minimal porting to supercharger housing to obtain maximum flow potential
- Reduced blower discharge temps
- Stock O-rings are very high quality and are re-used
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