Welcome To The PSI Blog

Since the beginning, PSI has been associated with the Nissan GT-R.  Our shop car is a pristine example of a Nissan Skyline R34 GT-R.

We have been modifying all ranges of the GT-R line, from the R34 to the R32 and now the R35.  When the new Nissan GT-R's (R35) were released, we were eager to begin tapping into the potential of this new platform.

Several of our clients were early GT-R owners, however initially many were reluctant to modify them.  When they first came out, many concern was raised about the durability of their transmissions.  While able to handle the stock power of the VR38DETT powerplant, the transmissions would often be the weak link in the system when dealing with a modified GT-R.  Companies like AMS Performance have been producing more power from the VR, and the need for a stronger transmission became prevalent.

Above is a shot of AMS's GT-R at the Texas Mile event we attended in October.

This need for a stronger transmission is where ShepTrans came into the picture.  ShepTrans rebuilds the GT-R's transmission with upgraded components, which allows them to hold over 1200hp.   Before the transmissions can be sent to ShepTrans, they are removed from the GT-R.

The entire rear subframe is removed with the transmission and rear diff.

Reinstalling the freshly built transmission.

With the added strength of the transmissions, our clients felt more comfortable and confident in having their GT-R's modified.  As a west coast distributor and installer for AMS Performance, we have installed many of their components and Alpha packages into our client's GT-R's.

One of our client's saw an increase of over 100 whp and 170 ft-lbs of torque with an AMS Alpha 6 performance package.

Another one of our GT-R clients recently had us install an upgraded transmission.  In its current state, we have modified his GT-R to make over 600 whp, but with the ShepTrans built transmission, he feels comfortable with pushing his car further.  He has goals to make over 1000hp and we are working with him to put together the best solution for that goal.

As that GT-R was leaving, another client dropped of his GT-R for an upgraded transmission as well.  Only time will tell of the power goals for this client.  One thing is for sure, we will turn it into a very fast and fun GT-R.

Like with all vehicles, a proper tune is necessary to not only protect the car but to get the most out of the upgraded components.  We currently offer GT-R tuning by way of the GT-R AccessTuner Pro from Cobb Tuning.  Cobb Tuning made us an authorized tuner for their system.  With the ability to tune the GT-R, PSI offers the complete package to the GT-R community in the Northwest.

Jason Oefelein using the AccessTuner Pro from Cobb Tuning.

With our affiliations with other leaders in the industry, PSI has become a premiere location for modifying Nissan's current "Godzilla", the R35 GT-R.  When you stop by, do not forget to check out our R34 GT-R, the predecessor to the R35 GT-R.  We put the same experience, time, and attention into working on your GT-R as we spent crafting our GT-R into the street car it is today.