| EVO X Tech Tips - February 2010 by eric |
by Eric Hsu
The serpentine belt idlers on the 4B11T do not last very long. In fact they will probably not even last the factory recommended service interval. Read inside for the idlers you want to replace them with to ensure the belt doesn't break and you don't smoke an engine prematurely.
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| 4G63 Divided by 8 by eric |
by Eric Hsu
Inside are some images of some 4G63 heads and a block I sectioned for a study back in August 2010.
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| Turbo - Once Round the Block by eric |
Turbo: Once Round the Block
by Eric Hsu
Two videos after the jump of the development process of the 1986 Cosworth GBA 1.5L V6 engine. The video also covers the development of the ECU and car, but what interested me more was the 4 cylinder Cosworth BD that was built as a tester on the engine dyno and its failure mode. This was before the time of CAD, FEA, CFD, and all that computer mumbo jumbo. 25 years ago it was all about your past experience and empirical testing which is a lot closer to how things are done in most parts of the tuning parts market today.
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| NASA 25 Hours of Thunderhill with BMC Tool Racing, Part 2 by eric |
by Eric Hsu
In part 2, I cover most of the engine and some of the drama with the engine and engine installation. Racing's never easy is it? I included pictures of some of the engine's internals and components selected for the turbo Mazda DISI/MZR hybrid power plant.
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| Turbosmart Comp-Gate40 Wastegate by eric |
by Eric Hsu
A trick, tiny, high flowing, new wastegate from Turbosmart Australia. I used a pair on the Sierra Sierra EVO. Good enough for Sierra Sierra, plenty good for you (or those of us with normal cars). The tiny package size means you can fit this wastegate in almost any engine bay.
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| Revspeed Super Battle Time Attack 2010 - Tsukuba JapanI by eric |
by Eric Hsu
This isn't full event coverage, but just some info on a few of the cars present at Revspeed's Super Battle Time Attack. The Garage Revolution FD almost beats the HKS EVO's time at Tsukuba. Some pictures and videos inside.
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| NASA 25 Hours of Thunderhill with BMC Tool Racing, Part 1 by eric |
by Eric Hsu
Part 1 of BMC Tool Racing's story to get to the 2010 25 Hours of Thunderhill. Inside are images of parts of the cars including some new aero, new coolng system, and of course a turbocharged Cosworth/Mazda engine. 400+bhp in a sub 1500lb car? Hell yeah! The only catch is that it has to last for 25 hours...
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| Cosworth XFE ChampCar Engine on Dyno by eric |
by Eric Hsu
Cosworth's last CART/CCWS engine revs to 12,000rpm on the engine dyno with glowing headers and all. A 2.65L V8 that revs to "only" 12,000rpm with approximately 7.5psig of boost = 750bhp.
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| 2010 Source Interlink Superlap Battle + Sierra Sierra = Domination by eric |
by Eric Hsu
It's been a long hard road to get to 1:41.0, but we've arrived. We are nowhere next to finished so you can expect even faster times in the near future, but for now winning the Source Interlink Superlap Battle at Buttonwillow Raceway, CA two years in a row is pretty damn sweet.
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| BorgWarner EFR Turbo Feature Set by eric |
Story by Eric Hsu
Photos from BorgWarner and Cosworth
Wondering what all the hype is about? Stop wondering and look inside. You'll find what I consider to be the most impressive feature set available on any turbocharger for the performance and racing aftermarket industry.
Updated 11/04/2010: more pictures inside!
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