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Old 03-26-2012, 10:57 AM   #28
Dimman
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Quote:
Originally Posted by serialk11r View Post
mmm 1.6L is quite a bit of displacement (3.2L equivalent), if they can hit 20/27 EPA that would be pretty phenomenal IMO. If they can get BSFC to within 10% of traditional piston engines they could squeeze those numbers out.

With a 1.6L engine with significant combustion efficiency improvements you'd be (hopefully) looking at well over 300hp though, since those rotaries rev so high. 100hp/L happens at about 7500rpm redline or so (power peak somewhere in the low 7000s such as on the FA20), 9000rpm gives you over 120hp/L on a well designed street legal engine (such as the S2000, which hits max power in the mid 8000s). 9000rpm with a 1.6L rotary with comparable efficiency to a piston engine would be like 3.2*120=380hp at a bit over 8k rpm :O. The Renesis managed like 230 out of 2.6L effective displacement with a really high redline, so its BSFC at peak power was probably about 25% higher (assuming comparable volumetric efficiency to the F20C). A lot of the fuel consumption is attributed to poor combustion, and so if they can fix the fuel consumption they should be able to increase the power output.
One of their big hurdles is they can't mess with their intake and exhaust events, since they are fixed ports rather than phaseable cams. They have their work cut out for them...
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