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2002-2009 350Z/G35
Z33
SUSPENSION |
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(SS) SPORT STREET COILOVERS
The POWERTRIX (SS) Sport Street
Coilover System is the most complete and fully featured
street Coilover kit on the market. Unlike all other entry
level units on the market which required the use of the
stock shock upper mounts and bushings, the (SS) Sport Street Coilover System is now complete with upper mounting hardware
and is now a true complete bolt in system. With our new SS
Coilovers, the tedious process of disassembling the stock
shock upper mounts and bushings just to find out that you
may need to buy new hardware is now non-existent with the
installation. These new SS upper mounts are fitted with a
synthetic butyl bushing in place of a pillow ball. This
bushing combines just enough density to transfer suspension
energy properly yet not overly stiff to help with dampening
the stiff ride quality that is inherent with conventional
race Coilovers and solid pillow ball mounts.
Also unlike most entry level coilovers, that adjust ride
height through spring preload, the POWERTRIX SS adds an
extra dimension of adjustment with independent ride height
adjustability through the threaded bottom mounting brackets.
With this set up it properly separates spring preload and
ride height, a feature only found on upper line coilovers.
Geared for the aggressive everyday street driver with the
occasional autocross and road course event, 15 way
adjustable strut dampening is valved a notch softer that our
full (RT) Road/Track and (UL) Ultra-Lite Road/Track Coilovers. This kit is a
formidable track performer as it is the best of both worlds:
Daily Driver/Weekend Warrior
Features List:
» Rebuild-able/Replaceable Premium mono-tube forge
steel strut Body
» SS upper mounts (for a complete bolt-in solution)
no need for any OEM Hardware
» 15 way strut damper adjustments
» Independent Ride height and Spring Preload
adjustability
» 12kg/mm front and 10kg/mm rear Helper Springs
included for extreme ride height lowering (Front Only)
All coilover kits are rebuild-able so it will be the last
strut and spring combination you will ever need. Fine tuning
of the suspension is also possible for any and every type of
driving style, or motorsports events as custom spring rates
are available from 3kg/mm (168 lbs/in) – 17kg/mm (952
lbs/in) Note: + or – 2k on spring rate changes will require
re-valving.
Additional Photo |
$1050.00 |

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(RT) ROAD/TRACK COILOVERS
The (RT) Road/Track Coilovers feature a
robust Race grade 45mm mono tube strut piston that is valved
for the serious competitor and features aluminum pillow ball
upper mounts to transfer more suspension energy through the
strut piston shaft increasing the efficiency of the overall
suspension duty. Full forged steel threaded shock bodies for
independent ride height and spring preload adjustability and
13k/11k linear springs make the RT Coilover System an "All
Business" tool for Auto crossing and Road Racing. Designed
for the true performance enthusiast looking for the extra
edge during track time, it is also just civil enough to run
on the street on a daily basis.
Features List:
» Re-buildable/Replaceable Premium mono-tube forge steel
strut Body
» Pillow ball upper mounts
» Race Grade 45mm strut piston
» 15 way strut damper adjustments
» Independent Ride height and Spring Preload
adjustability
» 13kg/mm front and 11kg/mm rear
All coilover kits are rebuild-able so it will be the last
strut and spring combination you will ever need. Fine tuning
of the suspension is also possible for any and every type of
driving style, or motorsports events as custom spring rates
are available from 3kg/mm (168 lbs/in) – 17kg/mm (952
lbs/in) Note: + or – 2k on spring rate changes will require
re-valving.
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$1250.00 |

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(UL) ULTRA LITE ROAD/TRACK COILOVERS
The (UL) Ultra-Lite Road/Track Coilovers
are the ultimate in all-around performance and handling. It
also features the aluminum pillow ball upper mounts and
independent ride height and spring preload adjustability.
For the serious Motorsports competitor, the (UL) Ultra-Lite
version shares all the same features of the Race version but
incorporates aluminum strut housings for an approximate 10%
decrease in weight making them the competitor’s choice for
those watching un-sprung weight. We have used these
coilovers for dual duty, Drag and Autocross setups with
great Success. With all the adjustment and spring options,
it is possible to set up the vehicle to meet all situations
and scenarios. Thought the strut housing is aluminum to save
weight, the POWERTRIX (UL) Ultra-Lite coilovers use heat tempers
forged steel for bottom mounting cups (where other companies
use aluminum) for maximum strength where is it needed the
most at the point of where the coilover assembly bolts to
the hub of the car.
The (UL) Ultra Lite Road/Track Coilovers aluminum shock bodies make an
entire assembly approximately 2-3 lbs. lighter than the
standard RT version coilover assembly. Though this does
not sound like a lot, it can make a big difference
performance-wise when the dynamics of sprung vs. un-sprung
weight is considered.
Sprung weight is defined as a parts weight while in motion
or constant oscillation. Un-sprung weight is the actual
weight of the part as it is at rest or not in motion. Sprung
weight is calculated to be approximately 3-4 time its
un-sprung weight.
Therefore a coilover assemble that is 2-3 time lighter than
another can be as much as 6-12 lbs. lighter while in motion,
so calculating that savings on each corner of the car can be
as much as 24-48 lbs. of weigh savings.
Features List:
» Re-buildable/Replaceable Premium mono-tube aluminum
strut Body
» Pillow ball upper mounts
» Race Grade 45mm strut piston
» 15 way strut damper adjustments
» Independent Ride height and Spring Preload
adjustability
» 13kg/mm front and 11kg/mm rear
All coilover kits are rebuild-able so it will be the last
strut and spring combination you will ever need. Fine tuning
of the suspension is also possible for any and every type of
driving style, or motorsports events as custom spring rates
are available from 3kg/mm (168 lbs/in) – 17kg/mm (952
lbs/in) Note: + or – 2k on spring rate changes will require
re-valving. |
$1499.00 |
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