I tried to make a viable engine for family cars with good economy and reasonable price. I went for naturally aspirated and not very demanding engines for manufacturing (no forge works, CNC shop, no turbos…). Fuel requirements are 95 octane unleaded, pretty much standard fuel where I live, premiums are 98 and 100 octane and you couldnt find 91 octane even if you tried (and the last time I saw it the price difference was negligible). What are your opinions?
The first engine is meant for small family cars (Renault Megane, Kia Ceed, Skoda Octavia…) - 80kW is more than enough, and more importantly torque comes from low rpm, has great reliability and the efficiency is around 40%. Not sure about the costs, how they compare to real life engines, I tried to make 1.4L engine from my car and without any quality adjustments it was about half as cheap… maybe this could be a better alternative to relatively unreliable expensive turbo diesels?
2.0L 20V DI EcoRev2.lua (35.1 KB)
The second one is a small but cheap and efficient engine for small cars (Renault Twingo, Kia Picanto, Skoda Fabia…) - 45kW is not much, but gets the job done, and with 38% efficiency it should allow for a nice small cheap car with a very good mileage.
I tried them for my Hyundai Accent (2007 model) analog, a cca 1150kg car with 1.4L engine (100km/h in 12,4s and 6,5L/100km real life, in-game analog was pretty close with 11,5s and 6,2L/100km, couldnt tune the engine for the exact specs). My 2.0L engine returned 100km/h in 10.9s and 4,3L/100km and 1.0L returned 100km/h in 15.9s and 3,86L/100km, not too bad I think compared to what the car companies are selling currently