Diesels odd, petrols even. Why?

[mikeylad]

following on from torque vs. bhp...
Does anyone know why petrol engines are almost all even numbers in capacity (1.4, 1.6, 1.8, 2.0 etc.) when diesel engines are usually odd (1.5, 1.7, 1.9, 2.1 etc)?

it seems that simplifying engine designations through capacity would be a rather weak reason for dictating something as important as engine capacity, which is the only reason i can think of..

[shpub]

Err what about the 1.1, 1.3 Ford Petrol engines?
Then there is the 2.3 and 2.9 V6s from Ford?

What about the Rover 3.5 V8?

[Podie]

Where does the Ford 1.25 zetec come in to this?

[mikeylad]

guys, due to computer error (!) this thread also exists here:

www.pistonheads.com/gassing/topic.asp?h=0&f=23&t=34918

sorry

the lad

>> Edited by mikeylad on Tuesday 8th April 16:33

[Captain Muppet]

following on from torque vs. bhp...
Does anyone know why petrol engines are almost all even numbers in capacity (1.4, 1.6, 1.8, 2.0 etc.) when diesel engines are usually odd (1.5, 1.7, 1.9, 2.1 etc)?

it seems that simplifying engine designations through capacity would be a rather weak reason for dictating something as important as engine capacity, which is the only reason i can think of..

It's random - trust me.