I thought they did have a working prototype? I saw a sectioned motor that was clearly a split-cycle Scuderi engine at their booth @ the DC auto show 2 years ago. Not a hacked together job, and also not a just-for show unit from what I could tell.
They have certainly been at this a long time, and I agree I haven't seen may real-world results. Only fancy animations, graphs, and presentations.
Quote:
What is happening now with the prototype?
Testing of the naturally aspirated, one-liter gasoline engine at Southwest Research Institute in San Antonio, TX, continues to meet or exceed the initial computer simulations. A recent study modeled various Scuderi Split-Cycle engine designs in a vehicle computer model of a 2011 Nissan Sentra.
The Sentra model was simulated through a standardized Federal Test Procedure-75 (FTP-75) drive cycle for each SSC engine design. Preliminary results of the Study showed that up to a 25 percent decrease in fuel consumption (i.e., up to 33 percent increase in MPG) was achievable with an SSC engine replacing the Sentra’s engine when factoring in fuel cutoff during deceleration and idle in the model. Results also showed that up to 35 percent decrease in fuel consumption (i.e., up to 54 percent increase in MPG) was achievable when compared to the model Nissan Sentra using a stock engine without fuel cutoff.
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Makes me wonder why they don't just PUT IT IN THE DAMN CAR. As my co-worker says: "Don't get caught in the paralysis of analysis"