Made by Precision Brakes Company exclusively for
MWS Motorsports to Michael Smith's demanding specifications,
this all-in-one upgrade kit is designed to be the
first kit anyone thinks of when considering an inexpensive
but effective upgrade to their stock setup, where
budget is a strong consideration and maximum performance
is not needed for the track.
It is designed around the idea that one can have
larger 12.1" rotors and better stopping power
and can still use the stock Z32 rims and calipers
with NO additional mods or hardware needed.
The kit solves all the problems of other stock-caliper/stock-rim
brake upgrades unlike the 12 3/8" 3000GT kit
-- which requires large spacers with longer studs,
will not fit a stock TT rear rim in front and cannot
allow for taped-on lead weights for true alloy wheel
balancing. None of these are issues with the MWS Motorsports
kit and yet, the rotor is still significantly larger
than stock; 12.1" versus the stock 11.1".
Installation is also the easiest of any brake upgrade:
If you can remove your stock calipers for a rotor
change and remove or cut your rotor shields, you can
install this kit.
Make no mistake, many larger-rotor upgrades that
use expensive aftermarket calipers are going to be
a superior upgrade to the MWS kit, but for the budget
conscious, being informed about what is involved may
be the key to choosing which kit is right for you
and at what point in your upgrade path.
All other larger, more expensive brake kits force
you to buy larger rims and tires and possibly experience
reduced pedal feel, due to a mis-proportioning of
the master cylinder to the new calipers; or if they
fit the stock rim and use stock calipers, you suffer
hidden costs not included in the kit. This cost may
be: 15mm hub spacers, expensive longer wheel studs
and the installation cost of those components. Also,
any time you use a wheel spacer that thick, you begin
to introduce unwanted side-effects such as additional
steering effort, bump-steer, and possibly fender rub
300ZX Power Upgrade Stages
"Sensible Upgrades" Stage list: MWS Motorsports has a
list of "Sensible Upgrades" that Michael feels are first
must-haves for power-hungry 300zx twin turbo cars. There's
a logical path to achieve higher performance for any car.
Some upgrades are arguably more important to add at a
later stage, after the basics have been taken care of,
but folks will still buy these upgrades first, paying
lots of money and receiving little benefit from them.
MWS Motorsports will install most any mod you wish, but
Michael Smith has spent countless hours working with and
documenting the following mods in order to better guide
the customer on a path that gives the most benefit for
the least cost. The following upgrades have all been featured
on MWS-TV as providing the most smiles per dollar and
the best "street=able" performance, over and above costly
mods like larger intercoolers, exhausts and flywheels,
which while nice, will not provide as much fun if applied
before the below upgrades:
1. SMC alcohol/water injection
"Practice Safe Boost"! That is why this upgrade
is listed first. The kit has an improved lower-amperage
pump which will pump straight water, straight alcohol,
or a mix of both. No other kit on the market can say this.
The kit is $499 +tax, plus, $225 to install. This will
eliminate knock and allow you to run bigger boost at ANY
stage upgrade. This upgrade is a must before all other
upgrades and you will see more and more people doing it.
MWS Motorsports has a working relationship with SMC and
knows how to order the kit to fit your car, either using
an aftermarket bottle up front, by the air filter, or
the existing window washer tank in the passenger fender.
TT cars with hydraulic HICAS can have this stock front
fender washer tank retrofitted to their car easily. The
kit, with MWS' input, is constantly evolving to provide
300ZX customers the features they need.
2. Down pipes
They will free up low end torque and reduce back-pressure.
Even with a stock exhaust system and cats, this upgrade
will facilitate large gains without any other mods.
3. EVC 5 Boost controller, using the MWS "Hardline" kit
Now that you are using "Safe Boost" with your SMC system,
it's time to start turning it up. MWS Motorsports recommends
the HKS controllers exclusively, because they use a fast
stepper motor instead of a solenoid, and the new ease-of-use
completely quells any complaints that could be levied
against the older EVC-4 or 3. No more "learn mode". No
more driving at 100mph twice in a row to teach the controller.
...but the same great control and response from HKS. A
common mistake for folks installing any boost controller
is they leave the existing boost jets inline which can
hinder the boost controller's ability to do it's job.
And the next most common mistake is to get the boost signal
that goes through the controller and routes back to the
waste gate, after the intercoolers. The best place to
"get" that signal is coming directly off the turbo compressor--before
the intercoolers, just as any boost controller's instructions
will show. In order to do that, nipples must be welded
to the black "J-tubes" coming off each compressor. The
last most common mistake is to then run 8 to 10 feet of
rubber or silicone hose ( if each hose is about 2 to 2.5'
long and there are 4 of them, it is really about 10 feet
) all through the engine bay, to control both turbos,
and tee them together to the boost controller. This is
where the "Hardline" kit comes in. 6mm tubing is bent
to fit closely to your engine and provide the shortest
path from the waste gate actuators and the J-tubes, to
the tees, which all meet up near the boost controller.
This provides the best response and least chance for torn
or leaking rubber tubing. This boost control installation
is like nothing you've ever seen before and requires some
additional time, compared to a slap-dab run of 10 feet
of hose all through your engine bay. Base price for installation
is $299, which includes a "Hardline" kit, connector hose,
and all electrical installation.
4. ECU upgrade
are controlling knock and boost, and can start thinking
about the sky being the limit. This is a vital upgrade
as you will be running higher boost levels and must ensure
that your timing and fuel maps are updated. This upgrade
alone can greatly increase the performance of your vehicle.
In combination with stages 1-3 your car will be almost
unrecognizable from a stock 300zx.
5. Larger injectors
This includes grinding the plenum flash on each runner
to allow ease of installation and future repair or
upgrade of injectors. Installation is $450, which
includes the plenum grind. Injector pricing varies
from year model and grade.
6. NA rear end
No one who's ever installed
an NA rear end ever thought it wasn't a great mod. And
most people ask themselves why they waited so long. It's
$500 for the entire rear end, but people have been known
to find deals for less...plus, $450 to install. This mod
also requires a new driveshaft for $200 or so, depending
upon source. MWS Motorsports will not install a used NA
driveshaft-- for safety reasons. However, MWS has developed
and sells one-piece drive shaft that you can choose to
install with this upgrade. MWS literally removes all your
rear suspension and replaces it all. Any other mods you
may already have, like sway bars, shocks, brakes, etc,
are transferred as well in the package price. Be warned,
when buying used gear, there can be problems with the
differential, wheel bearings, or bushings. The diff and
sub frame bushings will be checked as part of the package,
but can be replaced for an additional cost. In some cases,
even the sub frame bushings will look fine, only to leak
after install, which will incur additional costs to repair.
If this is a concern, pay to have them replaced as a matter
of course. The differential and wheel bearings will probably
not display any problems until the car is driven, at which
time, additional costs are incurred to diagnose the problem
and repair it. Look up the price of an NA rear wheel bearing
before proceeding :-)