Nova wrote:I made this engine last night happen to see your post figured id post mine almost dead on the same mine has a bit higher reliability lower material cost lower emissions but you have more hp.
But your production units are ridiculously high, as are your maintenance costs. You've been playing fast and loose with the quality sliders. Also you use 95 AKI, which is 98 RON, super unleaded. Expensive stuff once Tycoon mode comes around, and hard to find. The main GOOD things about your engine are its reliability and its low cooling requirements. But the former is due to your ridiculously low rev limiter.
Consider, by comparison, another application that will fit many cars that your turbo 4 will fit. It is a compact naturally-aspirated 2.9L V8. Not quite as reliable, but more than twice the power, while taking a third of the production units to build, and still lower material costs. Its decent efficiency percentage combined with higher power means that it can give a heavier car good fuel economy numbers.
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Now let's take a "bargain" 4-cylinder. Not a huge displacement, sexy, high-powered affair. But relatively efficient and stupidly quick to build, while still maintaining good enough reliability to be considered "mainstream", and reasonably low maintenance costs. Something that wouldn't be out of place in a subcompact or possibly even city car. May not get as high efficiency as a small turbo motor, but won't cost an arm and a leg initially, nor in service costs.
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One final player: this for mid- sized sedans and possibly a small-to-mid SUV or sports coupe. Relatively inexpensive to build and not super time consuming, but good reliability and power curve, low cooling requirements, and good efficiency. Plus, service costs under $1500/yr on a modern straight-6.
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Also important to note: Every single one of these runs on regular unleaded, without fail. I can get more power and efficiency easily by switching grades of fuel, but I made a point to learn how to make engines that would run on the garbage that we Americans run through our cars on a daily basis. Also not a single one runs Direct Injection. This keeps production units, material cost, and service cost down. The last of those three is huge on DI... sometimes it can be a 50% increase. Just things to keep in mind for when Tycoon mode comes out and the buyer becomes discriminant about cost of ownership.
Posted: Wed Mar 25, 2015 1:56 pm
