VQ37VHR Single Turbo Kit

Stage 1: Designed for OEM Automatic Transmissions and those looking to boost with a fuel return system

Stage 2: Designed for those looking to make great top end power, willing to add return fuel system. *Recommended for automatic cars with built transmissions

Stage 2.5: Designed for those looking to push the limits of the stock block or mildy built motors

Stage 3 and up: Designed to be paired with our built motors to proven push 800-1100+ whp. *Offered in house only email info@sohomotorsports.com for more information

Turbo, intercooler, pipe size change between the kits as well as fueling requirements to make power.

We only offer full kits, and will not sell you the piping only. Our in house built intercoolers may be available for certain applications.

SOHO MOTORSPORTS VHR TOP MOUNT SINGLE TURBO KIT

With the success that we have had with our single turbo kit for the VQ35DE, it was only a matter of time before we developed a single turbo kit for the VHR. We are proud to announce our newest single turbo kit for the VHR, which is the first reverse rotation top mount kit for this platform. The reverse rotation has allowed us to route the cold side and hot side piping in a manner that is favorable to the limited space in the VHR engine bay.

Stage One Kit: Starting at $7,999.99

*Anything above 12 PSI we highly recommend a fuel return system

https://sohomotorsports.com/collections/g37/products/soho-motorsports-vhr-top-mount-single-turbo-kit-stage-1

The stage two kit was designed for the enthusiast that is looking to reach 600 rwhp on pump gas and push the limitation of the stock engine block with ethanol or race fuel. When designing the stage two kit, we wanted a kit that would have minimal lag and still be able to provide top end power to allow for the vehicle to perform on the street and the track.

Stage Two Kit: Starting at $8,999.99

Manual 370Z with 93 octane Pump Gas

Automatic 370Z with IPT built transmission with E85 Gas (75% ethanol content)

https://sohomotorsports.com/collections/g37/products/soho-motorsports-vhr-top-mount-single-turbo-kit-stage-2

Stage 2.5 Kit: Starting at $10,499.99

RWD 6 MT G37 Sedan

93 octane

E60 flex fuel tune

E75 flex fuel tune

https://sohomotorsports.com/collections/370z/products/soho-motorsports-vhr-top-mount-single-turbo-kit-stage-2-5

About the kits:

Utilizing components from some of the best companies in the industry such as Garret, Turbosmart, Injector Dynamics, Aeromotive, K&N, and Vibrant we have been able to create a stage one kit that is perfect for the enthusiast. The entirety of the SOHO Motorsports single turbo kit piping is made from T304 stainless steel, unlike other kits in the market that use stainless steel and aluminum. Stainless is used, rather then the industry standard of aluminum for the cold side piping because stainless is almost a tenth of the heat transfer coefficient of aluminum, which means that it does not absorb heat as quickly as aluminum. Along with the reduced coefficient of heat transfer, stainless steel is a more durable material then aluminum and does not have a very significant difference in weight savings.

The hot side piping mimics our design of the VQ35DE kit as one side of the exhaust manifold will meet with the other side via a custom merge collector that will direct both exhaust manifold paths into the bottom of the turbine housing. The Garret GTX3576R turbo has been chosen for the stage one package along with a 1.01 A/R exhaust side housing allowing for great spool time and continuous top end power.

As the exhaust gases exit the engine and travel thru the 2.50″ diameter stainless steel piping, they will meet the turbosmart wastegate, which will help control the amount of boost that is made via a set wastegate spring of 7 psi. We have incorporated a recirculation wastegate tube into the exhaust to alleviate noise when the wastegate will open as many people are not a fan of the open wastegate sound.

When it came time to determine a way to incorporate a three inch downpipe, our fabrication department found that reversing the bolt on the passenger side subframe would allow for a 3″ downpipe to fit. With the length that the downpipe would need to be, it would have to be a two piece component, and we found that incorporating a slip joint would allow for the downpipe to become two pieces and allow for an easier installation.

Now it was time to create the cold side of the turbo kit, which would require some ingenuity as the space that we have was very limited and we did not want to have excess piping in the engine bay. The compressor outlet travels alongside the passenger frame horn and wraps around the radiator support into the top of the intercooler, where a gradual increase in overall diameter is noticed at the intercooler. A 2.5″ to 3.0″ coupler is used to allow as much air as possible into the intercooler as the air will then travel downwards and out in their own separate paths towards the dual throttle bodies. The stock power steering reservoir has been relocated to the drivers side engine bay since the turbo is now in its original location.

Over the past few months, we have been testing a concept that has provided an increase in power with this platform, which can be seen in the picture above. You will see that we have increased the overall diameter of the intake piping going to the throttle body from 2.50″ to 2.75″ to allow for the velocity of air to increase going into the throttle body via a pressure differential.

The stage one kit is for the enthusiast that would like to utilize the stock non return fuel system and not shoot for big power, as the stage two that will follow this stage will be for the enthusiast that is looking for bigger power on the stock engine along with a few more modifications.