AVO's Turbo BRZ at World Time Attack Japan
 

World Time Attack Japan at Fuji Speedway. Round 1 of the Motor Games Time Attack Series.

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AVO Japan was recently invited to participate in Round 1 of the Motor Games Time Attack Series, part of the World Time Attack Japan. This was a good opportunity to show the amazing track capability of the AVO turbocharger kit, so everybody put their heads together and burnt the midnight oil preparing the BRZ for the circuit.

Because Fuji Speedway is such a fast circuit, a new roll cage was welded in. Having a shunt at 150mph can be quite catastrophic to both car and driver! Several years ago, Fuji Speedway was redesigned for Formula One, which lead to much higher speeds around the circuit. It is quite safe in a relative sense, but the AVO BRZ is still a street car. In fact, we were driving it to and from the track! The only thing that gives it away is the AVO racing front lip spoiler and rear wing. Both of which have improved handling at the circuit tremendously. We put the 3.7 rear end in because it is such a high speed track.

The AVO Crew
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Knowing the demands of Fuji Speedway, tuning for more power was also a priority. With the new billet turbo fitted and the new high-flow air intake system we've designed, it was tuned for 440hp on race gas at .9 bar of boost, with 50kg/m of torque. To get that power down to the ground was our new Yokohama 050 tyres (245 width front/265 width rear), a very high performance road legal tyre.

The New AVO air intake system
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We drove the car in late Friday night and got ready for Saturday testing. Saturday went well, despite all the rain, and we got the data we needed before the big Sunday run. The car was performing well, cornering performance was good, and the engine was very strong, allowing us to hit 250km/h on the main straight (156mph) in 5th gear. Happy with the performance, Ross and the crew settled in for a good sleep.

Sunday started off much better, with dry weather and a semi-dry track. While there was still some wet patches here and there, overall it was quite good and Ross was able to pull off some good lap times. That doesn't mean there were not some minor issues. Thanks to the AVO aero bits and suspension setup, maximum G's in the corners was just under 3 G. Ross found that when coming out of a hard left and corner into a right hand sweeper, if you are pulling near 3 G, even with fuel tank foam in the tank and 35-40 liters of fuel (60 liter tank), we were still getting fuel surge. Looking at the log, the long black line is the gear change, and the smaller black line after that (just above the blue dot that is the car) is the fuel surge we experienced. A minor issue, but something we will work on in the future.

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Even with the heat of the day, the engine put out a solid performance at all times with the AVO radiator and oil cooler fitted, and we had no issues with overheating. It just shows how efficient our turbo system is with a few key cooling upgrades for heavy duty track use. EGT's were well within safety margins (under 750 degree C), and power overall was just brilliant. The maximum water temperature was reached at the end of the short technical section, which was 98 degrees C, and by the time it reached the end of the short straight after that it was back down to 90 degree C. Oil temperatures never got above 95 degrees C.

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Ross put down a best run of 1 minute 57.9 seconds, a blistering performance at the track that had him ahead of the Ferrari F40, and just .2 of a second behind the McLaren F1. Unfortunately, that was not quite enough to go on, as we least to the 1000hp GT-R's on full race slicks. But at the end of the day, we could drive the car home, still enjoying that brilliantly performing car. Even if we did get stuck in 19km long traffic…

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[ame]http://youtu.be/p4Zc0h6uXAg[/ame]

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Omg. If I wasn't terrified of destroying my car with fi I would get the avo Stg 1 in a heart beat

thats the grest thing about the AVO kit..you wont. as long as you get a professional tune. ive had my kit for 20k miles about and i havent had a single problem.