Ratio is something for something. for example: there are two boys for every three girls. The ratio sentence for that is 2:3! Bet you didn't know that.
Higher than a gasoline engine.
Higher compression ration which can increase hp. I installed 49cc heads on my 305 instead of the 64cc and got a higher compression ration and a fair amount of hp gain.
100 PSI. Lowest reading should be no less that75% of the highest reading.
There is no set relationship between cc and hp. there are many factors that influence it, such as fuel type, compression ration and ignition temperature.
It'll bolt on but there will be compression ratio issues. If I remember correctly the 250 combustion chambers are considerably larger than the 1960s 200, so the compression ration will drop a lot. To restore a decent compression ration you'll need to cc the head, do some calculations or look them up in a book devoted to rebuilding Ford inline sixes (there are a couple available via the web), and decide whether to mill the head and/or block. Hope this helps.
The poisson ration of uncompressed polyurethane is 0.5; the poisson ration of polyurethane under compression is 0.39. Reference: "Material behaviour in plane Polyurethane - Polyurethane impact with velocities from 10 to 400 m/sec." Published at J. Phys IV France 7 (1997)
If you only use one piston ring on 80cc bike engine, the compression ration will be reduced.
Ration coupons is a plural noun. The singular is ration coupon.
In Tamilnadu ration shops are opened by 8.30 am to 12 pm
Ration books is a plural noun. The singular is ration book.
who invented the ration books
Ration Tabs