Engine size

How about Plutonium? You would not have to worry about long range tanks :)

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Originally Posted by Blknight.aus

I cant proove it (no-ones stupid enough to let me have access to that much prototyping capabilty.

With todays metalurgy and technology I reckon that you could make all the power you need for a deefer from about 1.8L

What I'd like to have a go at is doing diesel electric, you can run a much smaller engine in that configuration.

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Once you accept that you are going to have a turbocharger, power (and torque) from a given displacement can be increased almost indefinitely, limited by the structural strength you can build into the engine and the size of turbocharger and intercooler you can accommodate (and afford). This is apparent from the upgrades available by rechipping, bigger intercooler etc.

It would be interesting to know though if there is in fact any advantage (other than fitting in under a capacity limit) whatever in the smaller capacity, in what is essentially the same engine. For example, a smaller capacity engine should be lighter - but if it is smaller bore, it may not be - depending whether the casting of the block is the same. (If shorter stroke, presumably the crankshaft is a bit lighter). But I suspect the engine mass is virtually identical.

John

I was thinking a 2 stroke wet sleeve honeycomb ally block long throw crank with the blower set up for supercharging.

Is there no limit?

I guess the more air and fuel you can get in to the engine the more waste heat available to spin the turbo(s).

I think that the turbo path does have advantages in weight and volume as I just can't see a 5lt normally aspirate diesel coming in smaller and lighter that a 300 tdi plus turbo!