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--- "Just curious: Why is a "larger" engine used for education ? Smaller engines are more suitable for education (for several reasons)." We have an initial testing/dyno rig that we want to implement VEMS onto which was using Life Racing F88 ECU. This is a Yamaha YN50F 4T and this was the engine used for this years Shell Eco Marathon car. We aim to downsize the engine for this specific application which should be carried out in the next 3 months with drivetrain. I suspect that if the VEMS is proven to be a contender for the Life Racing F88 ECU that we were using, I think that other projects such as Formula Student that are partaken at this University will also consider using VEMS, this is where the larger CC engines come into the formula. Other Projects that I have access to is a 20v Turbo VW engine that I'd like to do some testing with in the future, but for educational and development strategies, the smaller capacity engines will be the main priority. The setup is ideally looking to display data such as specific fuel consumption, EGT, IAT, CLT, RPM, VBat, Lambda, MAP. The rig will also be coupled to combustion analysis equipment from NI, so the more data that can be gathered, the better. Initial setup uses a 12.7ohm, 54cc/min injector, but as I will be building a bespoke engine for next years Shell Eco-Marathon and for research purposes, the setup is likely to change quite significantly as it is developed. The university is also wanting to take this engine development into the aspects of combustion analysis with an optical engine, hence validating any combustion analysis data gathered on burn fraction, knock etc etc.... Many thanks! :) --- Initially the Cam/crank sensor are VR (currently), We seem to be getting low errors on a 12-1 tooth crank sensor, we also have a 1024 shaft encoder mounted to the crankshaft for speed verification and linking to the combustion analysis equipment to determine precise Crank angle. We Also have a precision air flow meter to be installed on the rig, to be able to determine precisely the volumetric efficiency. --- Also, We intend to go to very high RPM's with the bespoke engine. This is to try to keep the thermal efficiency high. We will also be implementing ceramics into the Bespoke engine with machinable ceramics where it is the intention to design and implement bespoke components, again to improve thermal efficiency. Thanks :) |