the_dawggie <the_dawggie@[EMAIL PROTECTED]
> wrote:
> On Feb 2, 2:32 pm, Athol <athol_SPIT_S...@[EMAIL PROTECTED]
> wrote:
>> Four or less is seriously compromised. The end of one cylinder's
>> effective power output (where there's not enough pressure to keep
>> pu****ng the crank around) occurs before BDC. The next cylinder's
>> power starts around TDC. With a 4-cyl, that means that the engine
>> coasts between power from one cylinder ending and the next starting,
>> *every time*. Achieving overlap between power output from one
> You are thinking SI, not CI. Things are a bit different. You are not
> hitting the piston with a hammer, but pu****ng it down like a coffee
> plunger.
Nope. The pressure in the cylinder effectively ends before BDC
regardless.
>> 4-cyl engines are, by definition, inherently poorly balanced and
>> rough *economy* engines.
> Agreed, in SI form.
2 separate issues. (1) 4-cyl crankshaft is inherently unbalanced, and
(2) they are economy engines. The inherent roughness is a direct
consequence of (1).
>> It doesn't matter how many times you say it, it will never be true.
> When you see a little 6 litre turbo diesel straight six do what
> it did, I doubt your V8 would be in the running.
Well, fair's fair. Turbo both. 6 litre straight LPG engine vs 6
litre diesel, both turbocharged and intercooled and both running
liquid injection. Now, what was that about the V8 not running? :-)
--
Athol
<http://cust.idl.com.au/athol>
Linux Registered User # 254000
I'm a Libran Engineer. I don't argue, I discuss.
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