PERRIN_ADAM
07-17-2008, 05:17 PM
The PERRIN PSRS has been a long time coming! Finally we are ready to release our PSRS for the EVO VII, VIII, IX & X! We choose to go with black, as this is a new theme we are going with on all of our parts. Mainly for those CA guys!
CLICK HERE TO SEE ON THE PERRIN PERFORMANCE WEB SITE! (http://www.perrinperformance.com/products/show/432/Positive-Steering-Response-System?category=8&model=3)
http://www.perrinperformance.com/shared/images/products/432/805_large.jpg
What is the PSRS?
In the Subaru world, these kits are known as the ALK or Anti-Lift-Kit. The anti-lift part of the kit is a very small feature compared to the benifits of the solid type connection the PSRS makes. Eliminating the OEM super soft bushing provides significant improvement in how the car steers during hard cornering and even in a straight line. So P.S.R.S stands for Positive Steering Response System. The PSRS replaces the front control arm, rear bushing. This OEM bushing is designed to be extra compliant to reduce NVH, and make the ride more comfortable. The compliancy of this bushing is not something a performance oriented driver is looking for.
http://www.perrinperformance.com/shared/images/products/432/804_large.jpg
OEM Bushings Installed
Under braking, this OEM bushing has enough flex in it to cause the wheel to move back and forth .300"! This deflection of the wheel causes drastic toe in and toe out changes under braking. These toe changes will cause steering input changes, cause the tires contact patch to change, and even wondering.
When accelerating, this OEM bushing causes unwanted wheel hop, and again toe in and toe out changes. During acceleration, the car will want to follow the ruts in the road, as the bushing flexes back and forth. This is one of the most noticeable changes.
PERRIN PSRS Installed
Under Braking, after the PERRIN PSRS is installed, the wheel will not move front to back period! Since there is no way for toe changes to occur, the steering feedback issues, and wondering under braking all goes away!
Under Acceleration, after the PERRIN PSRS in installed, wheel hop disappears, the car will have far less tendency to follow the ruts in the road, and in turn the car will have more front end traction.
Adds Caster
Besides removing all the unwanted flex of the OEM bushing, our PSRS has an offset to where the bushing is mounted. This allows the installer to add almost 1.5 degrees of caster to the front suspension. Caster is the angle at which the steering knuckle rotates on. Adding caster makes the car turn in faster by providing a larger contact patch as the wheels turn on the steering axis. Think of it like camber for your steering!
CLICK HERE TO SEE ON THE PERRIN PERFORMANCE WEB SITE! (http://www.perrinperformance.com/products/show/432/Positive-Steering-Response-System?category=8&model=3)
CLICK HERE TO SEE ON THE PERRIN PERFORMANCE WEB SITE! (http://www.perrinperformance.com/products/show/432/Positive-Steering-Response-System?category=8&model=3)
http://www.perrinperformance.com/shared/images/products/432/805_large.jpg
What is the PSRS?
In the Subaru world, these kits are known as the ALK or Anti-Lift-Kit. The anti-lift part of the kit is a very small feature compared to the benifits of the solid type connection the PSRS makes. Eliminating the OEM super soft bushing provides significant improvement in how the car steers during hard cornering and even in a straight line. So P.S.R.S stands for Positive Steering Response System. The PSRS replaces the front control arm, rear bushing. This OEM bushing is designed to be extra compliant to reduce NVH, and make the ride more comfortable. The compliancy of this bushing is not something a performance oriented driver is looking for.
http://www.perrinperformance.com/shared/images/products/432/804_large.jpg
OEM Bushings Installed
Under braking, this OEM bushing has enough flex in it to cause the wheel to move back and forth .300"! This deflection of the wheel causes drastic toe in and toe out changes under braking. These toe changes will cause steering input changes, cause the tires contact patch to change, and even wondering.
When accelerating, this OEM bushing causes unwanted wheel hop, and again toe in and toe out changes. During acceleration, the car will want to follow the ruts in the road, as the bushing flexes back and forth. This is one of the most noticeable changes.
PERRIN PSRS Installed
Under Braking, after the PERRIN PSRS is installed, the wheel will not move front to back period! Since there is no way for toe changes to occur, the steering feedback issues, and wondering under braking all goes away!
Under Acceleration, after the PERRIN PSRS in installed, wheel hop disappears, the car will have far less tendency to follow the ruts in the road, and in turn the car will have more front end traction.
Adds Caster
Besides removing all the unwanted flex of the OEM bushing, our PSRS has an offset to where the bushing is mounted. This allows the installer to add almost 1.5 degrees of caster to the front suspension. Caster is the angle at which the steering knuckle rotates on. Adding caster makes the car turn in faster by providing a larger contact patch as the wheels turn on the steering axis. Think of it like camber for your steering!
CLICK HERE TO SEE ON THE PERRIN PERFORMANCE WEB SITE! (http://www.perrinperformance.com/products/show/432/Positive-Steering-Response-System?category=8&model=3)