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Message: <blockquote data-quote="LCP" data-source="post: 198816" data-attributes="member: 2424">Actually, the non-Vanos M50 engine is very revvy, with peak torque coming in at a highish 4700rpm, so, in order to make full use of the M50, you hafta keep the revs high. BMW is a proponent of short stroke engine, and the M50B25 is no exception. The typical characteristics of a short stroke engine is very high peak rpm for maximum torque. This is also why they improved it later to become the single Vanos M50B25TU so the engine can have a wider torque range, the max torque rpm was quoted at 4200rpm now. Of course BMW did not stop there. The low speed driveability of the engine is still not as nice, so the M52B28 was born... nothing beats a large displacement engine when it comes to torque. As for the Renault-engined Waja 1.8, that is a long stroke engine if I'm not mistaken (or maybe at least a square bore x stroke), a long stroke engine has a lower rpm for maximum torque, making the engine more flexible for day-to-day city driving. But when it comes to maximum power, that's another story altogether. The max power of the Renault-engine Waja 1.8 is about the same as the M43B18 found in E36 318i. So, the Waja 1.8 should run out of steam pretty early, although it will be strong in the low revs... the engine also has variable valve timing stuff also, fyi. Btw, for the Mitsubishi-engined Waja 1.6 (the common ones before the Campro engine), this is an example of a long stroke engine, the peak torque comes in at 2750rpm, that's low, although the amount of torque matches typical 1.6. Max power is approx 100hp of so only.</blockquote>

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