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Z Masterpiece: Jas’ 300zx Twin Turbo

Filed under: Featured Cars and Projects,Maintenance,Performance
by Alvin G @ 1:52 am on November 19, 2014

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Nissan’s Z32 Twin Turbo is a sportscar that has truly stood the test of time. Its curvaceous lines have aged gracefully and the venerable VG30DETT powerplant is still capable of producing impressive numbers today. We love them and specialize in keeping these beauties on the road and in the hands of proud owners like Jas D. He picked up this 1990 300zx Twin Turbo last summer and visited Z Car Garage for a thorough inspection.

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Though bone-stock with an amazing 44k miles on the clock it needed some attention. We went through the hydraulics and performed full 60k-mile services.

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Jas wanted to improve power and handling and we happily obliged with a comprehensive list of upgrades this year.  Starting with the drivetrain, the original transmission was replaced with a brand new(!) unit from Nissan:

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The clutch had seen better days so we replaced it with a JWT unit including their heavy duty aluminum flywheel:

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A JWT ecu w/boost jets manages uprated NISMO 740cc injectors and the Selin dual MAF. Improved breathing comes from Ash-SPEC inlet piping and dual JWT pop chargers:

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On the exhaust side, restrictive original downpipes were replaced with these beautiful Specialty Z 3″ downpipes. Note the divorced wastegate piping:

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Following the new downpipes are more parts from SPZ including 3″ mid-pipes and a cat-back exhaust system to replace the OEM setup:

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OEM vs SPZ:

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With all of the speed parts installed next we tackled chassis improvements. Lots of goodies here so let’s begin with brakes followed by suspension:

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We love Stoptech’s products and use them on our own vehicles.  Z32s are relatively heavy and with higher hp the stock caliper/rotors can be taxed quite easily. Jas took it up a notch and ordered a Stoptech 4-wheel Big-Brake Kit for his beloved Z.  Shown above is the ST40 caliper (front) squeezing 332 mm rotors and at the rear are ST22s on 328mm rotors.

The installation:

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Yes, they are pretty but also very functional! Speaking of aesthetics(that are functional, too), the new calipers are nicely framed between the spokes of these sweet VOLK TE37SL wheels.  We like your taste, Jas.   The lightweight TE’s were wrapped in Bridgestone S-o4 tires:

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Several suspension upgrades improve handling and replace old/deteriorated parts. Stance coil-overs were installed while Stillen sway bars front and rear help reduce body roll:

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OEM vs Stillen sway bar mount/bushing and end-link details:

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More suspension parts include SPL T/C rods,   Z1 upper control arms and new steering rack bushings:

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The Z looks fantastic with the new footwork:

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Jas came back to Z Car Garage in Septemeber for a few more upgrades. We installed 4.08 Leader gears, Ash-SPEC Massive SMICs, 2.5 IC tubing, and  SPZ Hi-5 upgraded clutch. The BDE low-profile Z32 motor mounts are a smart alternative to OEM that allows more clearance larger for intakes:

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After the addition of larger intercoolers and piping we re-tuned Jas’ Z picking up power throughout the rev range for a total of 369hp/387tq to the wheels:

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We think Jas’ 300zx Twin Turbo is the perfect addition to his stable. It is now a balanced sportscar with just the right personal touches. Long Live the Z32!

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Lots of pictures in the gallery, enjoy!
…[read more]




A Kouple of Kyles

Filed under: Featured Cars and Projects,Performance
by Alvin G @ 9:14 pm on November 10, 2014

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More UPREV tuning reports this week! Here we have two owners with the same name but different Z’s. Kyle H visited ZCG recently because of a failed A/F sensor on his 2008 350z. We replaced it and UPREV tuned with nice results:

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The mid-range to redline gains are significant for a total of 302hp/261tq to the wheels. Kyle’s Z33 was just featured in the latest issue of SuperStreet magazine!

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Kyle S is from Las Vegas but happened to be in the Bay Area and stopped by the shop for UPREV tuning on his 370z.

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Starting with a baseline of 293hp/241tq we gained +11hp/9tq to the wheels. Significant improvements throughout the entire rev range:

Kyle Saele Z34 UPREV

So if you have a Z or G car and want to extract more power from the mighty VQ engine with UPREV tuning let us know!

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TECHNICIAN WANTED!

Filed under: Events
by Alvin G @ 12:51 pm on November 4, 2014

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We are seeking a top-notch, talented, experienced and skilled auto mechanic to join our team.

Do you know a qualified mechanic? Encourage them to send their resume and call today – we are currently hiring.

Please contact rob@zcargarage.com or call us at (408)452-0350.





Are You UPREV’d?

Filed under: 370z,Featured Cars and Projects,Maintenance,Performance
by Alvin G @ 12:01 am on November 1, 2014

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We love to install bolt-on parts that add power to your Z/G car. At Z Car Garage UPREV tuning can maximize power gains from individual modifications like intake/exhaust upgrades. Here are two examples of how we consistently achieve better performance through tuning, with mods or even without!

Mike F is a long time friend of ZCG and owner of a very cool 700hp Fox-body Mustang. His daily driver and family-unit vehicle is this G35 S sedan and Mikey want to give it a little more oomph.

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We installed Berk high-flow cats followed by an UPREV tune.  The automatic-equipped G gained 18hp/11tq for a grand total of 277hp/249tq to the wheels. Another significant benefit of tuning: the VQ can now rev all the way to it’s sweet 7500rpm redline!

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Scott A’s Nismo 370z is a great example of UPREV tuning improving power/delivery without any bolt-on mods.

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With tuning the Z is now past that magic 300whp mark at 314hp/262tq to the wheels. Great all-around gains in torque with significant mid-to-high range gains in horsepower…just from the UPREV!

Scott A Z34 Uprev (1)





Laguna Seca Track Day Novemeber 1

Filed under: Events
by Alvin G @ 12:28 am on October 26, 2014

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Our friends at SpeedSF are running another great track day at Laguna Seca November 1. We love running our cars with these folks and they go above and beyond to make sure you get tons of track time! In addition to the road course they are also hosting an all-day Auto-X in the paddock for only $50! More details at SpeedSF.com!

Our friend Dan F. pictured here attended the last SpeedSF event at Laguna Seca!

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