Quote:
Originally Posted by ib4200
so when will gm come out with an overhead cam v8 to put in it? image the sales numbers of a v8 with equal or greater power with even better gas milage
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Torque = efficiency x displacement. so torque/liter is a good measure of efficiency right?
take a car like the 05-09ish audi s4...."high tech" 5v dohc v8, revving to 7500 rpms
302 ft lbs/4.2L = 71.9
Take a motor like the "antiquated" pushrod ls6 = 385 ft lbs/5.7 = 67.54.
Not a huge difference for a massive investment in technology. Then if you were to divide those numbers by the amount of physical space each engine actually requires, and the OHC argument is basically gone. pushrods are ftw at the moment
