Ismael P came to Z Car Garage for a Motordyne exhaust system install and dyno.  Here is the Motordyne Shockwave True Dual exhaust system with burnt Titanium tips:

Stock vs Motordyne:

 

While enjoying his Z at the drag strip the clutch slave cylinder failed so we had it towed to our dealership to enusre sure they covered it under warranty.  We picked it up and UPREV tuned it with nice gains bumping peak power to 324hp/267tq to the wheels:

 

Peter  has been with ZCG for a long time and we’ve been maintaining his 350z to keep it reliable for his commute. Peter eventually decided to turn up the wick and make the Z a bit more fun when driving over the hill from Santa Cruz into the South Bay via HWY 17. To sharpen handling we installed Hotchkis front/rear sway bars:

A Bassani exhaust system frees up some power while increasing the already melodious VQ-note:

 

A Motordyne 5/16 plenum spacer followed by an UPREV tune rounded out the power mods.  +22hp/16tq to the wheels is sure to make Peter smile on the drive to work  🙂

Octavio came to ZCG for bolt-ons and tuning. Here are the goodies: Motordyne MREV 2 lower intake plenum,  5/16″ plenum spacer and JWT pop charger

(Left)MREV2 plenum vs stock and (Right) 5/16 spacer :

To complement the improved breathing the stock intake was replaced with a JWT Pop charger:

The bolt-ons alone yielded gains of 7hp and 14tq to the wheels:

What is even more impressive is how Rob’s UPREV tuning takes advantage of the bolt-ons improving the baseline 251hp/227tq to a final 270hp/254tq to the wheels. Overall gains of 19hp/27tq!

Our last major update on Alan E’s G35 was in 2009 when he made the jump to forced induction with a full Vortech supercharger install + supporting mods. Alan recently came back to ZCG for more power upgrades since we all know that boost is addictive!

We installed ART pipes to complement the upgraded exhaust system:

A 2.87 pulley generates more boost along with uprated 650cc injectors and an Aeromotive 340LPH fuel pump:

 650cc injectors and Aeromotive fuel pump:

The initial build several years ago produced 417hp/320tq at the wheels:

With the current mods and Rob’s tuning, the G now produces 457hp/351tq to the wheels!

Will Alan’s craving for power be satisfied now? Stay tuned to find out!

On the 23rd of last month I put up a the most recent track video featuring our good friend Scott and his 350z.  The car had received the new MotorDyne Shockwave single exhaust the day before the track event so here are the dyno results, videos, and my impressions.

I normally shy away from favoring any sort of single exhaust on the 350z but this may be the system that has changes my mind.  From the moment it was unwrapped it was easy to notice that the quality was there, and then we came to the exhaust tip.   MEGAPHONE!!  Here at Z Car Garage we have a special place in our hearts for the megaphone tip, as they are currently installed on Rob’s 240z and 510 as well as Alvin’s Roadster.  The MotorDyne system comes with one from the factory, sweet.

The exhaust was installed without hassle thanks to the simplicity of the included V-band clamps.  As soon as the car fired up we were all impressed.  Rasp was virtually non-existent (this car still runs stock cats) and the sound was extremely crisp.  While it’s not overly-loud, and passed the decibel meter at Thunderhill, there may be a sound limit issue at some of the super-strict tracks like Laguna Seca.

On to the dyno!!

We made a few baseline runs just prior to the install and came out with a hair under 252 rear-wheel horsepower (rwhp.)  After the exhaust switch we made two more runs while carefully monitoring all critical temps as well as the air/fuel ration with an Innovate wide-band 02 sensor.  The number we came out with was sort of a let down: 251rwhp, a one hp loss.  Before simply marking it up as a loss we pulled out the laptop to check the timing in the U-tech piggyback computer.  After pulling a couple degrees of timing we were happy to see the number climb to 259rwhp, a very nice gain for a normally aspirated car.

Unfortunately this isn’t a true comparison because we can’t be sure of how the NISMO system would have performed with the reduced timing, on the sound alone I would recommend this exhaust.  Make sure you check out all the videos and photos after the ‘read more.’

…[read more]