June felt like Stillen Supercharger month at the shop. Since Stillen has made significant changes to their kit including the use of a Vortech blower, this is now a very popular choice for great power gains and CARB-friendliness. Naturally, Z/G enthusiasts are lining up to enjoy some boost!

We have three Stillen S/C builds to report. Let’s start with Daly C’s  2009 G37 Sedan. You might notice that the kit still uses the pretty “Stillen” cast intake manifold with dual throttle bodies on one side:

 

Here are a few in-progress pics of the install. Daly has GTM oil and tranny coolers and GTR one-step colder spark plugs:

 

While the G was here we gave Daly a full 30k service for peace of mind and upgraded Stoptech brake pads. The before/after:

 

So how does the Stillen kit perform? With the baseline CAN tune from Stillen, it produced 373hp/282tq to the wheels. This is an improvement of 89hp/40tq with most of the gains only noticeable after 4krpm:

 

Rob’s tuning however, turns Daly’s G into a different beast now making 414hp/317tq to the wheels. This is a significant peak increase of 38hp/35tq to the wheels over the base tune! More importantly, the gains are available throughout the entire rev range. Lots of area under the curve to enjoy!

 

It’s always gratifying to see total gains above baseline, so here is what the +130hp/75tq improvement looks like:

 

Daly we love your sleeper G37 sedan. Tune in next week for the second Stillen build!

Mike U came to Z Car Garage for a Stillen intake install on his 2013 Nismo 370z. This is his first sportscar and he’s got more mods on the way including a Fast Intentions exhaust system UPREV tuning.

 

Stillen Gen 3 intakes:

 

Before/after

 

Stay tuned for more!

 

David Q is a new customer and came to Z Car Garage for some bolt-ons on his 370z.  We installed a Berk cat-back exhaust:

 

Stillen intakes and Motordyne M370z intake manifold:

On the dyno the motor dyne intake increased mid to upper rev range torque:

With the Berk exhaust and UPREV tuning even more low and high rpm hp/tq gains were seen:

Final results of 308hp/263tq to the wheels are improvements of +6hp/18tq. More importantly than peak gains, check out the significant gains in hp/tq from 3krpm all the way to redline where the Z makes almost +25hp/tq!

 

Jaques G was referred to Z Car Garage his co-workers at Apple. Last month he visited us for suspension/wheels and came back for Stillen intakes and an UPREV tune. Handling was improved with a few common upgrades like stiffer Eibach springs, Hotchkis sway bars and SPC control arms to keep alignment in check:

 

A nice braking upgrade is the OEM G37 S caliper setup. We installed these Akebono units on Stoptech rotors all around:

 

Front OEM vs big calipers:

 

Absolutely beautiful 19″  WedsSport SA55M wheels encase the calipers well.

 

These wheels are finished in matte grey have a more concave face for the rear…very handsome additions to the G.

 

Jacques wanted a little more power so we installed Stillen intakes followed by UPREV tuning.

 

The intake alone was good for +10hp but no significant gain in peak tq. Note, however nice gains in low and high rev ranges. UPREV tuning yielded an additional 4hp/6tq for total of 298hp/240tq to the wheels. Shown below are the gains from baseline to intake to UPREV:

 

 
Finally, the G was up for smog and it passed with flying colors. Jaques’ G37 is now a sharp looking corner-carver!

 

James Z (seriously, “Z”!) is a new customer and came to Z Car Garage while searching for a shop to install all of his bolt-ons purchased through the web. We installed an ARK exhaust and Stillen intakes on his 2013 Z34:

 

OEM vs ARK GRiP cat-back exhaust system:

The road view showing the “burnt” tips:

 

Stillen Intakes:

 

To make the most from intake/exhaust additions Rob UPREV tuned the Z with gains of +15hp/8tq resulting in 315hp/258tq to the wheels. Note the flatter torque curve in addition to increased hp all the way to redline:

 

We also installed a personal touch to the interior with these lighted “Z” kick panels:

 

More power and an enjoyable sound…thanks for coming to ZCG James!