Posted by Speedy Builder5 on 23/08/2023 19:16:11:
I stand corrected – still seems nasty stuff and I won't attempt to get it as this seems to do the trick for non competition engines:
Kerosene – 35% Read UK Paraffin/ heating oil or French Petrole
Ether – 35%
Castor Oil – 30%
This is an interesting read Diesel engine low down
But this is a mix for his performance diesel engines. (2 Stroke compression engines)
Kerosene – 27.5%
Ether – 40%
Castor Oil – 30%
Octyl Nitrate – 2.5%
Bob
Hi Bob,
Nitromethane in glow fuel is basically there to increase power and, as Andrew points out, is not something to be used in the make up of 'diesel' fuel. As the nitro increases in percentage so the mechanics of the enginee need to change to accommodate it.
Basically – 'Ignition improver' on the other hand is used to smooth the ignition point in compression ignition engines. I'm not aware of 'Octyl' nitrate being used for this but this may be a substitute for IPN (Iso Propyl (?) Nitrate – I think)
Outside of some esoteric, very dangerous substances, power increase in normal CI engine fuel – commonly referred to as 'diesel' fuel – is usually achieved by increasing the paraffin content at the expense of the ether and/or oil content, the ignition improver remaining constant within a half percent or so.
Diesel fuel has now become prohibitively expensive at the (very) few sources available. For years I have used fuel produced by Southern Modelcraft based in Tonbridge in Kent but that, unfortunately, is collection only or from their stand at the model shows they attend. They will also sell ether and gnition improver as well as castor oil but there is no real advantage of mixing your own over buying it in half gallon sizes.
I guess this is for your rebuilt ED 3.46 so if you do manage to find some, or the ingredients for it, hope it runs well for you
Best – Tug
PS I note in a previous post from 2012 I stated the Southern Modelcraft 'Sport Mix' was £12.50 per 2.5 Litres – that's now £28.00 !! That said it is still the least expensive available I believe.
Edited By Ramon Wilson on 24/08/2023 14:13:58
Edited By Ramon Wilson on 24/08/2023 14:19:07