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I get 25mpg in my 400whp sr.
Im sure if they built a modern 2007 edition of the sr20det it would get better gas milage than a comprable powered larger disp engine.
oh and get your wrx tuned (boxter motors have different VE efficency and power characteristics anywys).
Lets compare a V8 to a Rotary thats about what your trying to do with that presonal example
Its stupid to say that a 400 ht sr gets better gas milage, but the fact is that it fucking does!
I mean jbeus christ i get no worse than 18 mpg on the city streets with 850cc injection and no more than 12:1 afr characteristics on my personal car as well as cars ive tuned with 555cc injectors getting upwards of 20mpg on the city streets. This is 1980s technology.
Find me a 2008 GTO that will get 20mpg on the street.
PS im not saying "smaller" is super dooper better.
Im directly addressing your points abou how a V8 crushes and humiliates smaller engines for performance.
Your going off on tangents about valve shrouding and de-shrouding and head work being hard to do because of valve size.
I don't see your point. Were not making 1000 hp cars here, were talking conservative power, like 400-500 hp.
Last time I checked a 2.3 liter sr with stock head attributes (minus some minor widening of the quench chamber/head zone) will flow 500, 600 even 700 whp no problemo.
My race car is more reliable than my KA, gets better gas milage than my VG30 J30.
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