It has been some time since we last saw the MotoIQ Project Autocross Subaru BRZ.
Over the winter months here in the Midwest it gets really cold, our roads turn to asphalt crater fields and those of us who like to keep our cars free from rust allow them to hibernate for winter.
During this time we plan for the next season acquiring parts and pieces that will allow us to attempt to become even more competitive. During our latest off season there was much discussion on what would allow this project to take another step forward.
The cooling system in the FD RX-7 is widely regarded as its most glaring weakness. Many of the engine's cooling components are constructed out of plastic, the intercooler is wildly undersized, and the orientation of the radiator does not allow for proper airflow to the intercooler. In the next two installments of Project [Rotary] FD RX-7 we tackle these issues by implementing a 100% custom V-mount cooling solution.
In the last episode, I’d worn down the Nitto NT01 tires into slicks. Then I got a nail in one of the tires too. Obviously, it was time to get some new tires. Many of you have asked about my custom brake ducts which bolt to the front lower control arm. Well, I tried out a cheap DIY version along with finally getting around to making some rear brake ducts.
I had a dream. In this dream a man would drive a car on the track. He wouldn’t own this car, yet he would have all the joy and happiness as if he actually owned it. His expenses would be low and his debt modest due to his loving girlfriend’s trust and/or gullibility. This was a beautiful dream that would leave me slightly sad when I awoke. Surely I couldn’t become this man. With my awkward personality and face only a mother could love, no girl would date me, let alone be foolish enough to let me drive her car at speed. But this my friends, is America. Dreams still come true and slowly, the dream has started becoming a reality. First the girlfriend, then the Miata, then the rollbar, seats and brakes to get it track ready. The last piece of the puzzle was improving the dumpster fire Mazda calls a cooling system in NA Miatas. With the help of Koyorad, my vision, foretold many years ago, is ready to be fulfilled.
by M-P Spierer
Designing and installing the turbo setup is one of the most enjoyable aspects of any build. There are many decisions to make when planning out a turbo setup and each decision has significant effects on subsequent decisions. It is a balancing act of desired goals and undeniable trade-offs. Many questions need to be answered like, am I looking to maximize mid-range response or top-end power? And, how much response will I be giving up if I choose one turbine housing A/R over another? These are questions that have different answers for every build. For this RX-7 we are trying to maximize response around a specific power limit without breaking the bank.
There has been silence in my garage for almost a year. The NX GTi-R, when you last saw it, had rod knock and was parked until I had the time to work on it. Life intervened and many things have caused this project to get pushed to the background. Then Mike Kojima and I met in the paddock at Buttonwillow. It was not that I was stalking him (well, maybe I was sort of stalking him) but a chance to meet the man after years of online chatting and emails was something I knew had to happen. After very few pleasantries the conversation moved to cars and then Mike asked about the NX. With his suggestions and input, my future build took a change of direction with my intended stock build moving to a built engine. Believe me, it did not take very much persuading to make this move. Eagle Rods, CP - Carillo Pistons, JWT cams, Calico Bearings, and a Precision Turbo. There is a plan for the NX GTi-R. I have not put this much money into the car since I bought it! The end result, however, should be spectacular. Version 1 - GA16DE with almost all bolt-on options. Version 2 - SR20DET with boost controller. And now for Version 3 - with a built engine, larger turbo, and eventually a stand-alone ECU.
In Part 1 of Project STurdteen we discussed some of the future plans of the car as a purpose-built entry-level drift car that can be used for competitive purposes in ProAm. One of the big issues I experienced previously had to do primarily with heating and cooling issues. We decided to go with a complete Koyorad cooling system, which incudes a radiator and oil cooler. We also included a power steering cooler to address steering pumping up issues \i had experienced in the past once the car would get hot, which is a common complaint in many drift cars.
After pouring over forums and websites the only company I kept seeing the words 'you won’t regret it' was with Fast Intentions. While there are others in this market that make a great product, it seems with exhausts you need to make the choice of compromising comfort in terms of interior noise for that last bit of horsepower.
Vince, our FNG, drives a Honda S2000 that serves as his daily driver. The S2K takes him to work and school day in and day out. However the Honda also serves as a track day vehicle seeing duty at Willow Springs, Buttonwillow and Cal Speedway. After serving reliably for 80,000 miles the clutch suddenly went out on Vince on his way to work.