Scott B was the first Nismo 370z to be supercharged down at Stillen. After a few years and 25k miles he came to Z Car Garage because the car was acting up. Rich A/F ratios from the (early) Stillen tunes had fouled the catalytic converters.
We installed ART pipes which are test pipes without the traditional raspy sound:
OEM cats vs ART pipes:
After the install we re-tuned Scott’s Z picking up 17hp/14tq for a total of 416hp/313tq to the wheels:
Tom H has been coming to Z Car Garage with his Salt Flat Crew for many years. We helped tune their early Studebaker and Sprint cars that went on to make several record passes.
Tom has owned this Cobra since 2000 and he replaced the small block with a 427 fed by four Weber carbs. For the last two years he was fighting driveability issues. Rob found the transition between the pilot circuit and main circuit had a big hole in it and the car would fall flat on its face under wide-open-throttle, eventually catching up with itself.
After ~20minutes on the dyno Rob turned a stumbling car into a totally driveable beast making 404hp and 480 tq to the wheels!
Phillip V is a Z Car Garage customer and former 350z/current 370z owner. We installed an Injen exhaust system on his 350z and he absolutely loved it so naturally he wanted one for his 370z. We didn’t sell these exhaust systems for the Z34 and this was our very first install. Here is a before/after:
More exhaust details:
Rear end view of the exhaust tips:
On the intake side we added JWT dual Pop chargers:
Dyno Tuning
To maximize gains from the bolt-ons we UPREV tuned the Z. We started with 284hp/235tq and the JWT POP chargers made a significant increase up to 294hp/241tq:
The Injen exhaust was good for ~4hp/3tq for a total of 298hp/244tq:
UPREV tuning yielded even more power for a final output of 311hp/258tq to the wheels, gains of 27hp/23tq to the wheels:
Several years ago we met Scott L at a local autocross and eventually started working on his 2003 Brickyard 350z. He loved to road race so we performed incremental upgrades including Stoptech front brakes, a Quaife differential, Hotchkis sway bars, Koni Yellow shocks, and adjustable front A-arms with rear lower control arms. We also did a minor tune and numerous track day-prep/maintenance. Here he is at Laguna Seca:
With 200k miles on the Z he started looking for a new sportscar that met his requirements. Being a Nissan fan and quite attached to his Z the GT-R did make his list but the lack of a true manual transmission steered him away. A C7 Z51 and Cayman GTS were also in the running until he saw the new GT350 Mustang and it ticked all the right boxes:
Scott stopped by ZCG to dyno the Shelby and it put down an impressive 460hp/375tq to the wheels! Factory rated at 520hp/429tq, this flat-plane crank beast has been reported to put down even more power on 93 octane!
The dyno chart is displayed with a bone stock 2012 Mustang GT:
Here is a video of the ‘Stang on the dyno. Congratulations Scott and thanks for bringing her by the shop!
Rob was completely impressed after driving it…Nissan are you listening?
Paul S owns a smog shop in South San Francisco and contacted us about making his Infiniti G35 a “sleeper”. You know, the kind of car that looks very stock from the outside but gets down like the “other” high-hp cars coming out of Z Car Garage. We discussed options for forced induction and decided on a Vortech supercharger–making good power and having CARB legal status was very attractive.
The VQ had 98k miles and to prepare for boost we performed some preventative maintenance including a thermostat change. The Vortech kit was the V3 model which is self-lubricating and polished:
We installed a JWT HD Clutch and Flywheel: …[read more]
