Posted by B-maniac on January 07, 2014 at 12:47:57 from (75.133.244.30):
In Reply to: Re: HP vs Cu. In. posted by NEKS on January 07, 2014 at 05:01:55:
Wurtsila-Sulzer RTA 96, largest engine ever built. 14 cyl inline 2 cycle turbo diesel that runs on modified crude oil. It runs at 100 rpm, has 18' stroke and bore of over 3'.It has 1.56 million cubic inches. At that speed it makes 90,000 hp and will do it for decades without overhaul , which it must to be cost effective. It is used in the worlds largest container ship. Now I'm sure it has the latest in hi-tech machining and engineering but you could just take 90 1000hp prostock drag car engines at 500 cid ea equalling 45000 cubic inches and hook them all together and get the same hp at a fraction of the cost. And then they could overhaul each one of them after each trip,assuming they lasted that long since that 1000 hp is made at 7000 rpm. But hey, they ARE making 2 hp per cubic inch so they must be a superior engine , right? It's a BOAT!!! And what he was asking about was TRACTORS !! It's about application , duty cycle and yes, efficiency. Google this engine and see what it says about it's fuel efficiency. Horsepower figures are nothing but marketing tools and don't really have much bearing on what will do the job and what won't. Just seems to be a hard point to make.
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