The Power of Turbo

Many drivers who are looking to add an extraunsettle a car and be a handful for amateur
dose of performance to their car decide thatdrivers unused to this type of power delivery. In
installing a turbocharger is the best and mostsome cases, it is possible to fight lag by using a
cost-effective route to take. Dollar for dollar,nitrous system as a bridge between low-rev
there are few other engine modifications whichdriving and peak boost. Larger turbos also
can offer the same impressive horsepower gainsgenerate far more heat than their smaller cousins,
as a turbo kit. For those interested in maximizingand they often require the use of an intercooler in
their engine output, an entire universe of turboorder to keep air charge temperatures down, as
tuning awaits drivers with deep pockets, deeperwell as creative hood venting and air intake
reserves of patience and a willingness toinstallations to reduce engine heat in general.
experiment with different setups until the desiredOn the street, most drivers prefer smooth
results are achieved.power delivery that comes on during the rpm
In practice, the art of matching the correct typerange that they are most accustomed to driving
of turbo kit to a specific vehicle depends on awithin. Peak power is far less useful to street
number of factors. One of the most importantdrivers than reliable and regular boost that is
considerations to make when selecting a turbo kitavailable without having to run the engine up into
is what type of driving the vehicle will most oftenthe high rpm range. Smaller turbos may generate
encounter. It is important to match boost deliveryless power on a dyno, but on the street the
characteristics with the driving situation that thehorsepower that they do offer is much more
car is intended for. In particular, managing turbousable. In addition, the reduced heat and lower
lag is key to getting the most predictablerpm's associated with the use of a smaller turbo
response out of a turbo setup.extend engine life. For anything from stoplight
On a race track or drag strip where it is oftendrag races to spirited canyon carving, small turbos
easier to keep a car in a specific power band andoffer the type of throttle response that can
low engine speeds are not an issue, a larger turboradically transform a vehicle's driving
is usually preferable. Large turbochargers can flowcharacteristics.
more air than smaller units, allowing them toChoosing which turbo kit is right for you is a bit
generate much more power. This higher peakmore complicated than just picking a target peak
power does come with a couple of trade-offs,horsepower number and ordering the parts.
however, and the most noticeable of which isConsulting with an experienced performance shop
significant turbo lag. The bigger a turbo is, theis the best way to determine exactly what type
more abruptly maximum boost can arrive, whichof turbo setup will put the biggest smile on your
can lead to an 'on / off switch' feeling at higherface when you put your foot to the floor in your
RPM's. This type of sudden power surge canmodified car.