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The Elio Engine

MajorXx

Elio Aficionado
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Dual valve timing only changes the airflow ( and fuel flow ) depending on the engine loading. The RPMs per speed will be a constant determined by the gear ratios in the transmission, differential and by the outer diameter of the front tires. Elio's will have clutches in both the manual and AMT. There is no slippage as with a torque converter in the " old " style automatic transmissions.
 

tonyspumoni

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Can someone clarify for me if is normal in 21st century ICE design to have so many unknowns at this point? Sleeves versus plasma coating? Two cam lobes versus one? Seems to me like with current modeling capabilities and the massive expertise with the basic design this should be easier to get right before testing rather than as a consequence of testing. On the other hand Elio has been open during the design process in a way that no other technology provider is, so maybe this is commonplace. Or, I'm just a tool who doesn't read others' posts well enough to know that these details HAVE been decided, and that testing is for establishing other parameters. Either way, I'd be most grateful if anyone could set me straight(er).
 

RKing

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Just guessin here, but I suspect they would like to make the target benchmarks without the (cost of) VVL. I would prefer that to be the case, so less complexity in he production engine. Win Win ,lower cost for Elio, more KISS for us! Initial testing with iron liners provides almost all the initial data that spraybore would. My only knowledge of spraybore is almost 2 decades out of date, but at the time it was not very practical for small runs. And first run engines fall into that catagory. I would like to think that they are testing the validity of using liners in production also (like VVT). Again "guessing" based on very old data, but I prefer iron liners due to the "time proven" aspect. urability testing will include spraybores if that is going to production, but this testing is (I believe) validation of computer modeling and simulations.
Repeat JUST Guessin :)

PS ,, I want one of those gas turbines for my MGB engine swap, taking donations :)
 
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