Travel Tuning
When traveling to our shop for a tune is not an option, we fly to our customers. Last week Hal was down in Houston, TX breaking in a new VQ35. Ernie (aka Niceguy on the forums) has been hard at work in the garage, outfitting his G35 coupe with a new built 3.5L vq35de, SFR twin 60-1 turbo kit, plenum spacer, valve-body upgrade, Precision injectors, return fuel system, custom 3″ exhaust, Haltech dual widebands, and of course a Haltech Platinum 350z ems. After break-in tuning and driveability tuning it was time for the fun part - power tuning. The first dyno run was just shy of 400whp and it was not long until we hit his 500whp goal. Impressive horsepower through the Nissan automatic. Due to high intake air temperatures with the SFR intercoolers (160+°F) we decided to stop here and a more efficient intercooler is in the works. With the tune and the dual widebands at work, the owner was impressed that the car ‘truly drives like stock’.
SG Motorsport Showcases Longtube Headers for VQ35
One of our customers, SG Motorsport, recently put together a very entertaining video to showcase their Longtube headers for the VQ35. Using this on their 350Z race car, they were able to pick up almost 35 whp over the stock exhaust manifold. As if the power gains weren’t impressive enough, the equal length headers give this VQ35 a sound like any else! Be sure to watch until the very end to get a feel for how loud they can actually be. We look forward to more of their business and helping them build some amazing engines.
XXX Racing Fuel Gains 14whp on Stock 370Z
We had a chance to test XXX Racing Fuel’s new 138 oxygenated blend in our Nissan 370Z. After making a few pulls to get a consistent baseline on our 370Z (260whp), we added 5 gallons of oxygenated XXX race gas. The result was 274whp, an impressive 14whp gain.
XXX Race Gas Comparison Video:
XXX Racing Fuel Comparison Dyno Chart:
Project Mu B-Force Brake Pads for GTR
As an authorized Project Mu distributor, we are proud to announce the arrival of the Project Mu B-Force replacement brake pads for the OEM Brembo calipers on the Nissan R35 GTR. The B-Force pads aim to be an affordable alternative to stock brake pads while still giving a slight upgrade to braking power for the street or light track use. With an estimated retail price of right around $500, these should be one of the cheaper pad options for those needing replacements already.
AP Racing Rotor Discs for GTR
AP Racing has officially released their rotor disc upgrade and replacement kit for the Nissan R35 GTR. Injected Performance is proud to have some of the first sets in stock and available for purchase for those upcoming early track dates.
The GTR comes with factory drilled brake discs, which are considered to be a higher risk for cracking compared to slotted variations. AP Racing decided to use 12 curved slots instead, to greatly reduce the chance for cracking and improve pad bite. While the stock GTR rotor discs do have vanes, AP Racing takes them one step further by designing curved vanes to manage high temperatures much better. In addition to these various improvements, they have managed to bring the cost beneath OEM replacements. Although replacement rotor hats are not included, each set will include a brand new set of hardware to re-use the OEM rotor hats.
Both front and rear rotor sets are now available for sale at our GTRMod.com store, priced at just $1,169.75 per pair.
Stock Nissan 370Z Dynos 258whp
Our new 2009 Nissan 370Z was strapped down to our “heart breaker” Dyno Dynamics dynamometer for the first of many dyno sessions. The heart of the 370Z, a 3.7L VQ37 HR engine, drew a beautiful dyno curve and produced 258whp.
For reference, here are some comparison figures from stock Zs on our dyno:
2003 Non-Revup 350Z: 215whp
2006 Revup 350Z: 234whp
2009 VQ37VHR 370Z: 258whp
The rich AFR looks promising for gains with an Injected Performance reflash or Haltech Platinum 350Z EMS - both of which will be tested in the near future. Please see the dyno chart and video below.
Injected Performance’s Nissan 370Z Arrives
After what seemed like a long wait, our very own Nissan 370Z (base with sport package) has finally arrived in the brilliant Pearl White. What better way to break it in than a long road trip home through snowy weather, followed by several dyno runs to see what she makes. Stay tuned for the coverage of the dyno results. Regardless of what numbers it puts up, we are very pleased so far with Nissan’s next iteration of the Z car.
VR38 and VQ35HR side by side comparison
While building two Nissan engines for our customers we took advantage of the great opportunity to make side-by-side comparisons of these two modern day Nissan super-motors. The R35 Nissan GTR’s VR38 shares a lot in common with the Nissan 350Z/370Z’s VQ35 HR engine as seen below. The most notable difference is the closed deck on the GTR’s VR38. Check out the pictures and feel free to comment.
Stay tuned for new VR38 products and engine packages coming soon!
GTR Playing in the Snow at Nurburgring
Here’s an interesting video that’s circulating the forums. Autohaus Brommler, which appears to be a Nissan dealership in Germany, decided to showcase the capabilities of the GTR AWD system on a snowy track. While it’s obviously not any attempt at a sub-7:29 lap, it still looks like they’re having a ton of fun and making pretty good pace, given the conditions.
G35 with Powerlab GT35R becomes 400+whp daily driver
A 2006 Infiniti G35 Coupe was dropped off at the Injected Performance bay doors, equipped with a Powerlab GT35R turbo kit, Haltech Platinum 350Z EMS, and Deatschwerks 600cc injectors. The request was simple: check over the power tune and clean up the driving/cruising tune.
The initial dyno tests revealed this was one strong VQ35DE, breaking 440whp as it came to us at 10psi. The 2006 G35 has a Revup VQ35, though the tune had exhaust cam timing disabled. We enabled cam timing, picked up significant midrange power, and fixed the top end loss it had shown on the first dyno pull. At that point, the VQ35DE was outputting over 450whp at 10psi. This car was still running on the stock engine, and needed to stay that way for some time - so the boost was decreased to 8psi, and the tune was softened up. The final outcome was a safe 424whp.
The car came to us overly rich during cruising, which was quickly remedied by a proper tune on our load bearing Dyno Dynamics and followed up by a street test. A wideband air fuel sensor was wired to the Haltech and O2 correction was enabled to ensure things would continue to run in top form. The customer requested the speed limiter be removed, idle decreased (from a previous increase), and CEL removed - simple tasks all handled by the Injected Performance VQ35DE ECU Reflash. After customer pickup, the car made a 5 hour drive home where it reportedly achieved 26-28mpg.
Overall impressions of the Powerlab GT35R turbo kit are positive. It is one fast spooling kit; able to achieve full boost before 2900rpm and still make impressive top end power. Check out the pictures and video below.
