Quote:
Originally Posted by Ryephile
The engine specs look good; 12.5:1 static CR is typical for n/a DI. The problem I see is the torque/power graph; it doesn't jive at all with the 197HP peak @ 7k RPM and 151LbFt peak @ 6600 RPM. There's no numerals for RPM on the graph, however torque and power peak appear to be much further than 400 RPM apart, more like 1400 RPM apart. Also, I'm not a fan of that torque curve; it's too much like an n/a 2ZZ or F20; it won't feel natural, linear, or flexible like the Miata engine.
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i expected a much flatter torque curve. is this D-4S related perhaps? in the literature there is talk of the engine using a mix of DI and PI in low and mid rpm, and DI only in high rpm...