Stewart, WOW,

Thanks for the link. Much good information on oil AND machine work. Also, compression ratios and how they need to be matched to the fuel you're using. Harder to do with glow but EASY with diesel.

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For several reasons, C/R is one of those parameters where more is not necessarily a good thing. First, the work done compressing the cylinder content requires power, so as little as you can get away with might seem a good thing. Next, the fuel/air mix needs to begin burning before the piston reaches TDC. But we don't want the pressure build-up to be too great before the piston reaches TDC (more power loss). Then there's ignition enhancers to think about. Glow engine fuel generally contains some nitro-methane (apart from "FAI" fuel which cannot contain nitro). This advances the point at which the mix begins to burn. Dave Gierke's book on two-strokes relates a tale of how he was running mid-field at an R/C pylon race, when he accidentally tanked with FAI fuel and suddenly blitzed the opposition, setting a top score for the meet to that point (the others were running the "regulated" nitro fuel). Reasoning that this was because the nitro-less FAI fuel was better suited to his engine C/R, he reduced the C/R by adding a head shim, then set an even faster top score using the regulated nitro fuel. See? Matching the C/R to optimise the ignition point to the fuel is more important than achieving a high C/R.
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Greg,

Thanks for the input. Looks like that CP Oil is a winner. But he still runs castor in diesel. Would love to see the article.

And that SMALL, diesel with the eccentric crank. Neat. Now THIS one could have a glow plug installed. And it's a four stroke,,,,, [8D]

Oh, yes, for all the Aussies having a hard time getting Amsoil, my query to A1 oil returned this response.

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Hi Andy,
Sorry about the slow response, i am in middle of huge move back to
broken hill and am
having to check emails from remote pc.
I have plenty of Cetane Boost in stock and it will definetly give your
Diesel a
boost and keep it clean as well.
It is in storage for next few days but am fairly sure it is $11.00 for
around a half a
litre, but it does go a long way.
Please let me know where you are and i will give full quote inc postage.

Thanking you,
Peter Crossing
A1 OILS - Australia


Quoting andy woitowicz2 <[email protected]>:

> Gents,
>
> As shown here, http://www.amsoil.com/storefront/acb.aspx at the
> American website, is this product available in Australia?
>
> Andy