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 The
technology used in the VIPER was first seen on the Lotus 340R, but
now Pipercross are making it available for an ever increasing range
of popular road cars. The cold air feed takes air from behind the
grill straight into the VIPER’s 100mm diameter inlet, swirling
it through a unique Pipercross velocity filter contained within
a carbon fibre heat shield, and then into a ram pipe to increase
it’s pressure before feeding it into the induction system
 More
power is achieved using the Viper compared to other induction kits
because of two things. First, with the cold feed being at the front
of the car, you benefit from the ram effect of the air being forced
into the tube. This goes up as the square of the road speed. So
you get four times the pressure force at twice the speed. What this
really means is that the engine has an easier job sucking the air
in, hence making it more efficient and therefore more powerful.
(That's the ex-engineer coming out in me! - Colin).
 The
second benefit of the Viper is that cold air is fed into the engine
from outside the car instead of under the bonnet where temperatures
are high. Also, the carbon fibre heat shield protects the air charge
from under bonnet heat. This means that the air entering the engine
is more dense because it is colder and again it is then easier for
the engine to suck in the amount of air it needs. So, in summary,
what the Viper does is help the engine to gulp in the air more efficiently
- hence more power.
 This
may all be a bit academic but the increase in power using a VIPER
against a standard air box will be immediately evident. Just as
obvious will be the VIPER's stunning looks - the carbon fibre heatshield
connecting the polished alloy inlet to the 150mm rampipe will be
the focal point of any engine bay!
We
have the full range in our on-line shop at 10% discount
Our
prices : VFC = £225 inc VAT ; VF = £180 inc VAT.
These are both 10% off RRP. Delivery = £7.50
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