GR9 GReddy R35 GTR - 9.76 spec

Many have asked us recently; "What does it take to run 9sec quarter mile times in a street-trim R35?" Well since we've already done it, below is a list of the upgrades, we have made to our own GReddy GR9 R35 GTR.

Currently our car is now being fitted with and testing the next level of GReddy performance goodies to hopefully propel us in the the 8s shortly!  These same parts will be available to R35 owners very soon.  Please check back with our GReddy-GR9 Blog for more updates as they happen.

 

 List of our GR9 upgrades on the stock VR38DETT motor: 835 awhp

   * GReddy Twin Turbo Upgrade Kit (with piping & intake)
   * GReddy Type-29R Cross-flow Intercooler Kit
   * GReddy Racing Ti 94mm full Y-back titanium exhaust system 
   * GReddy DCT Transmission Cooler Kit
   * GPP tuned GR6 transmission
        w/ Dodson/Exedy clutch kit
        Dodson First gear Upgrade
        WPC Treated Full gear set and clutch steel plates
    * Ray's Engineering Volk Racing G2 wheels
    * MT Drag Radial Tires
    * Cobb AccessTuner/AccessPort GR9-Tuned for 91 octane pump and C16 race gas
 ----
    ***  For even more performance, ask us about our new GReddy VR Engine Programs and new high performance parts coming for the R35.

for more information on purchasing any of these items or services, please contact our GR Master Tuner list or GPP directly at greddyr35@greddy.com

http://greddy-gr9.blogspot.com/

R35 Power Extreme-GS Stainless-steel Exhaust

Enhance the sound of the VR38 engine in the R35 GTR,
        with a Stainless-Steel GReddy Power Extreme –GS exhaust. (p/n 10123224)

The PE-GS is a full Stainless-steel version of our popular high-flow PE-Ti for the (R35) GTR. The system features the same diameter piping and routing in a more conventional construction and a lower price. The layout starts with a large 80mm (3.15”) mid-pipe to a dual 80mm “Y” to two tuned, straight-through, oval GReddy mufflers and exit via two more 80mm “Y”s and quad- 115mm (4.5”), inner-rolled, bolt-on GReddy exhaust tips.

*Available now at Authorized GReddy Dealers or purchase now from www.shopgreddy.com

for more details please see: http://www.nagtroc.org/forums/index.php?showtopic=47492

   or see the GReddy catalog (more) P/N 10123224

GReddy Billet Pistons

Strongest piston set now available! option for GReddy Engine Program

We now have 2 piston options to choose from for our engine program.

Piston Option1: GReddy Custom Forged JE Pistons
Piston Option2: GReddy Exclusive Billet JE Pistons (Pictured Below)

We have teamed up with JE Pistons and Dynamic to develop the strongest pistons sets possible for extreme monster builds. The design and development took almost a year to complete but it was worth the wait! We took our VR block with our stroker cranks to JE Pistons back in April of last year to start development of forged and billet pistons sets for our engine program and we requested JE to perform Finite Element Analysis (FEA) for development of these pistons to test the stress and fatigue on a computer model before production. Each billet pistons are machined out of a block of high quality 2618-T6 aluminum. 100% CNC machined part means every surface are machined allowing for all unnecessary weight to be removed to keep the piston lighter but stronger. The piston features internal and external struts for improved durability and strength.

These billet pistons are not for everyone, but if you are targeting over 1000HP, you might want to consider these. Why billet over forged? To make forged pistons as strong as these billet pistons, they will be heavier which will affect the response and acceleration. By machining every surface, billet pistons can achieve the highest uniformity of material thickness on skirts and general body, which results in improved heat dissipation caused by stress concentrations experienced in high boost / high power engines. This is not possible with plain shaped forgings on a high production pistons.

For such extreme build, why not get the strongest piston available. Due to the production process and the development costs, it does cost more than forged pistons but if you are looking for the most durable and strongest pistons for 1000+HP that will withstand up to 1600+HP, these are the ones you want!

These options are available for all GReddy Engine Program (3.8L, 4.0L big bore, 4.0L Stroker, and 4.2~ 4.4L Big Bore Stroker) and are not available by it self.
see our Complete Engine thread for more information.
http://www.nagtroc.org/forums/index.php?showtopic=46548

for more info, please see: http://www.nagtroc.org/forums/index.php?showtopic=47159

More new products coming soon from GReddy!

Now that more and more GTR owners are building their vehicles for high power applications, our R&D team in Japan and US have been busy developing more upgrade parts for the R35 GTR.
We will soon release few upgrades for high power applications and some of these prototypes will be displayed at this week's Tokyo Auto Salon in the GTR display area but here is a sneak previews of one of the item.

GReddy Billet Big Bore Throttle Bodies
With all the recent developments and release of various turbo upgrades and modified engines for monster power, we are now starting to exceeded the capacity of the factory throttle body to take full advantage of this increase of flow and volume.

There are many modified factory throttle bodies out in the market already but the maximum diameter these factory throttle bodies can be machined out to is 63mm due to the factory castings (factory ID is 60.5mm)
We are currently testing 70mm and 75mm throttle body with 80mm inlet diameter. GReddy Billet Big Bore Throttle Bodies will utilize adaptor flanges to make these big bore possible on the factory manifold (with minor modifications). We are also working on high capacity intake manifolds as well. These throttle bodies are CNC machined from forged, billet 6061 aluminum and will be hard anodized for durability. They are designed to use the factory internal motor mechanism and cover for simple plug-in application and tuning. Features precision machined parts for super smooth operation and flow for maximum flow and quality.
Made in Japan


Large throttle bodies are the key to produce additional power throughout the powerband and maximizing the potential of the modified engines with upgraded high flowing turbochargers.

More images and data will be posted soon.

GReddy Fuel Delivery Tube
Factory fuel rail has an inside diameter of 11mm but around the injector mounting section they are reduced to 6mm restricting the flow for high power application.
GReddy Fuel Deliver Tube are designed to support good fuel supply for upgraded injectors with 14mm inside diameter. It also features a bracket system that will ensure proper fitment of the injectors. Mounting them perfectly perpendicular to the injector mounting boss on the cylinder heads.




for more details, please see: http://www.nagtroc.org/forums/index.php?showtopic=47162

Sneak-peek at the new and improved R35 VR Cast Manifolds

New Stainless Cast Turbo Exhaust Manifold for GReddy turbo kit coming soon!

The prototype part will be displayed at the Tokyo Auto Salon next week in the GTR Display aera.

These new manifolds are designed for better follow and the inside diameters are increased compared to our current stainless tubular manifolds.

 

For more details, please see: http://www.nagtroc.org/forums/index.php?showtopic=47044