We tuned the engine and got 401 kW (546hp) and 790 Nm @ 0.7 bar of boost. We are going to make one little session more to try better exaust and check that all of the maximum load sites are tuned for either maximum torque or to prevent detonation (near max torque area, 3500 rpm).

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OLD: Yesterday we got the new connecting shaft between engine and dyno installed and did some tuning and tested the strength of the shaft. It's a steady state dyno and we opened the throttle but not letting the engine rev above 2000 rpm, dyno was holding it back. Held up good.

Soo, some mixture tuning and we showed somerpm and boost to the beast. Got it revved up to 4500 rpm @ just mere 0.4 bar of boost (138 kPa absolute) and engine shut down. It was dyno safety switch that will shut it down when coolant reaches 100 degrees. We knew it was faulty because independent temperature gauge showed just 92and so did VEMS's display (calibrated).

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Car started at first try on engine dyno last Monday but apparently was too powerful: it snapped the connecting driveshaft between flywheel and dyno after 20 minutes.

It ran very good and smooth.

Here it is on a dyno: