@Roshaan
Forget 20 mins in english class. Even if you spend 20 months in your house designing an engine, you can't test it for it's efficiency.
And No designer in this world designs an engine in 20 mins and talks about its "efficiency"
if u build a lighter engine with lighter internals, better balanced crank, con-rds...everything....ofcourse ur gonna have a significantly more efficient engine....
True!!!
but you cant have better balanced balanced crank on a paper.. can you? thats why I said a lot of testing goes on for this purpose.
yup, No offence to you too.. but read carefully ... I didn't say I'm right because my professor worked for Gm for 27 years. I said I have been to one of the GM's lab. There is one in my college where we get all the latest designs for engines - GM, Chrysler, Ford, Toyota, Valvo and many more.