Part Design & Tech

An in depth look at how and why we make the parts the way we do, along with evolutionary changes to existing parts.

Nov 062013
 
PERRIN STI Equal Length Header

Updated from July 2010 post with new pics and new data! When Subaru released the Version 8 STI in Japan we noticed how they moved to a twin scroll turbo and equal length exhaust manifold. This is what inspired us to make our first header for the WRX/STI! Would taking the equal length design of this JDM header and adapting it to fit our US cars actually make a difference in power? Would it spool worse?  How would the sound [...Continue Reading...]

Oct 242013
 
3.0" BRZ/FR-S Exhaust Dyno Results and Stage 3 Tune!

We are always looking to push the limits of the cars we build parts for. We have made huge power with the STI’s, WRX’s, EVO’s and then with the BRZ using a Vortech SC kit. In all these situations the cars are boosted in one form or another, which makes it really easy to make more power. Now we want to push the limits of the stock BRZ engine in its naturally aspirated form. In this first post we will [...Continue Reading...]

Oct 152013
 
3.0" BRZ/FR-S Intake Dyno Results

From the very beginning, we were big on making sure people knew that our BRZ/FR-S cold air intakes were safe, wouldn’t throw check engine lights, and/or need a tune. These were very important items to hit on as there are many myths surrounding Cold Air Intakes. Some of these myths are, intakes cause CEL’s (Check engine lights), lose power, only make cool sounds, and require ECU tuning or require ECU re-learning to get the benefits from it. We spent a ton [...Continue Reading...]

Jan 152013
 
BRZ / FR-S Cold Air Intake Design.... Part 2

We spent a long time designing and testing our BRZ intake system to ensure that when our customers recieve the part, it will make the HP we claim, not cause any drivability issues, and be easy to install. After seeing many intakes with bogging issues, drivability issues, and poor MAF sensor placement, I knew that our intake would be a hit. If you missed the first blog post about our intake and design process, you can read up about the initial design in PART [...Continue Reading...]

 Posted by on January 15, 2013 BRZ / FR-S, Dyno Test & Tune, Part Design & Tech
Jan 072013
 
PERRIN BRZ/FR-S Oil Cooler

It may be obvious to some that you want to keep your oil cool under heavy load and extreme conditions. This keeps your oil from becoming too thin, or breaking down,which makes it less effective and could lead to premature engine wear or even engine failures! Another reason to keep your oil temps down is it keeps other engine components cooler which is good for HP. Until the BRZ/FR-S platform, we never really noticed oil temps playing a role as [...Continue Reading...]

Dec 202012
 
Inlet Hose for BRZ / FR-S

One of the first things we noticed on the BRZ/FR-S engine is that the OEM inlet hose could use some major improvements. From the resonator chamber, and the noise generator tube, to the fact its not very smooth on the inside, this for sure was a part that we could make better and make some HP with. Lets look at the stock part first. You can see below that there are a bunch of extra pieces to the OEM part. You [...Continue Reading...]

 Posted by on December 20, 2012 BRZ / FR-S, First Look, Part Design & Tech
Nov 262012
 
ALTA Compressor Recirc Valve

This part has been a long time coming for those with CRV problems. No not the Honda Sport Utility Vehicle, but the Compressor Recirculation Valve on your Mini Cooper S. The problems all started about 3 years after the Mini Cooper Turbo cars came out, where customers started getting check engine lights (CEL’s, or DTC’s) that were related to their compressor recirc vavle (CRV), then loads of other problems like low on power or weird idle problems or many other things. [...Continue Reading...]

Oct 242012
 
ALTA Adjustable Tensioner Stop

If you have ever had your stock belt dampener wear out or fail, then you probably know you can’t just buy the dampener, you have to buy the entire $250+ assembly. We solve this very popular problem with our new ALTA Adjustable Tensioner Stop. Its a replacement for the dampener but in the form of something completely different. This part was designed after an employee suffered a belt failure, which destroyed a crank pulley (very common and pictured below), which [...Continue Reading...]

Sep 112012
 
PERRIN EJ Series Upgraded Engine Mounts

This has been a long time in development and a long time in testing, and its finally ready to sell! We spent many months testing this part in-house and many months testing this in customers hands, to ensure this part will hold up to any kind of abuse our customers can give it. The idea of this part is simple. Stiffen up the engine to reduce the entire drivetrain movement under hard acceleration deceleration and corning, to effectively transmit more power [...Continue Reading...]

Aug 032012
 
BRZ/FR-S Part Proving.... All Bolt-Ons Part 2  (Header Tests)

…..Continued from BRZ/FR-S Part Proving…. All Bolt-Ons Part 1 This was the first time we had tested our headers on the dyno. Based on the things we know about the car and some of its variables, we knew it would be key to do this all on the same day as all the other parts. This ensures that the HP gains we saw were legit. After seeing some peoples dyno results showing huge gains of 15-20 WHP I was excited [...Continue Reading...]