The Perfect Season
Yesterday marked the end of an incredibly successful Time Attack season for the Yimi Sport Tuning / Jager Racing Subaru STI. Running the full Redline Time Attack season of 8 races at 4 different Southern California tracks we captured all 8 Street Class Overall victories. In the process we set Time Attack Street Class lap records at Willow Springs International Raceway(1:27.384), Auto Club Speedway Roval (1:45.394), Chuckwalla Valley Raceway CW (1:59.781) and narrowly missed the record at at Buttonwillow Raceway Park 13CW (1:53.207).
This was all done with Mark Jager‘s 2006 Subaru STI with a completely stock longblock. Many thanks to our good friends atFull-Race Motorsports and Borg Warner Turbo Systems for helping us with the BW EFR6258 that powered us to victory throughout the season. This tiny little 50mm inducer turbo (class rules restricted to that size) vastly exceeded our expectations and performed faithfully through thousands of miles of heavily abusive testing and racing. Custom tuned with aCOBB Tuning AccessPort we had a potent and reliable package that delivered the goods.
A debt of gratitude goes to our team member Ken Kasitz. Ken was responsible for the chassis setup and without his expertise and commitment there is no way we could have come remotely close to what we achieved this season. If anyone out there needs there suspension/chassis setup tuned you need to look no further than Ken of Koherent ChassisWorkz.
We also owe thanks to Whiteline Flatout for their support with their complete and fine line of suspension parts that are equally at home on a street car as on our race car. Our selection ofSwift Springs also allowed us more opportunity to fine tune our setup during the season, so many thanks for their support as well. Bryan Wasp Composites also joined the team mid season and supplied us with an equally effective and beautiful carbon fiber front splitter which gave us the front downforce to mesh with our rear GTC-300 wing from APR Performance andHankook USA RS-3 tires to help us pull 2.8 lateral G’s on the banked oval at Auto Club Speedway during our record setting performance yesterday.
Of course stopping is just as, if not more important as accelerating, and our Girodisc 2-piece rotors held up beautifully throughout the entire season. Driveshaft Shop‘s carbon fiber driveshaft allowed us to shave off a huge chunk of rotational mass with perfect fitment and smooth performance. Last but certainly not least, Ginormous Design Group for the work on the car’s livery and our company logo.
All in all, a lot of hard work and determination was put into transforming what was one year ago an extremely mild daily driver in to one of the fastest street tire cars in the country. Along the way we had many sleepless nights and tiring days, but the fun and camaraderie at the track more than made up for it.
2014 will bring another season running Redline Time Attack’s Street Class for the team and we look forward to working with our current and new partners to further rewrite the record books and go even faster.
A customer came to us recently with his 2006 Subaru Outback XT 5EAT . Most of the time when we see OBXT’s it’s just for maintenance or repairs, but this gentleman had something else in mind. While keeping the car completely stock in appearance AND sound, he wanted to be able to humble muscle cars on the freeway of Northern California. He also stipulated that the response characteristic of the turbo chosen had to mimic those of the OEM turbocharger, while passing the tailpipe sniffer come smog inspection time. With this unusual and challenging set of requirements we set forth building him a car that would satisfy and even exceed his expectations.
2006 Outback XT
-Built motor with stock heads and cams
-Full-Race Pro-Stock 1.5 scroll header
-Full-Race EFR stock location up-pipe
-Borg Warner 6258 EFR turbocharger
-JDM Legacy GT TGV deletes
-Injector Dynamics 1300cc injectors and fuel rails and supporting fuel system
-Process West TMIC with additional custom YimiSport fabricated piping
-YimiSport custom fabricated stainless steel turbo-back exhaust with a Vibrant UHO series catalytic convertor, fully v-banded to stock mufflers
-YimiSport custom air/oil separator
-YimiSport custom cold air intake and sound deadened heatshield
-Stock 130k+ mile 5EAT transmission with cooler and Hex-mod valvebody
301WHP & 293WTQ on 91 Octane
365WHP & 387WTQ on E85
The poor stock torque converter is a little overwhelmed in this application leading to some irregular power transfer at high rpms but will do till it comes time for a fully build transmission.
It does not get much more stealth than this. Watch out streets of NorCal!