Post by wannabebuilderuk on Oct 8, 2020 11:54:25 GMT -5
Goodies have arrived
Nozzle also arrived but so much for "stainless steel" :/ might work still(?) though I'd need sufficient airflow across it and since I'm going to have a domed f/t maybe I'll get away with it? Was only £12 so could use for testing before buying the fluidics one I suggested for the hx55 sled build
Post by wannabebuilderuk on Oct 8, 2020 13:52:30 GMT -5
Don't judge my choice of workshop shoes haha, just a rough idea of how it would look sore thumb setup though I think I'll stick with the elbow arrangement for a longer but compact build.
88*58mm 5mm radius seems to be fine for matching to the turbo flange so I'll probably do that again and weld a small piece in to smooth out the lip then I won't have to round the edges massively of the rectangular profile elbow.
A propane pilot light is the simplest way and gives a positive ignition of the liquid fuel spray, this is the same method as employed in steam boilers .
On my TV84 bike engine I had the propane flowing past the fuel spray nozzle in an annulus and because there wasn't any air mixing with the propane until well past the spray nozzle it was impossible for the nozzle to be subjected to a flame , it was "cooled" by the propane .
Once the propane was alight , the kero was simply sprayed through the flame and the propane switched off once idling was achieved.
Post by wannabebuilderuk on Oct 10, 2020 16:11:48 GMT -5
As much as I like to take risks I'm having second thoughts about using brass compression fittings and copper pipe for my 600 psi fuel system and I think I've found what I need but all hydraulic fittings and pipe for about the same price of a brass setup I'd say e.g. 1/4 bspp to 6mm mild steel compression fitting for £0.91 each vs £2+ each for brass is a no brainer lol
If you look at this pic ibb.co/rQsnyjj of my high pressure system you can see I used steel brake line silver soldered into hydraulic fittings and ready made off the shelf flexible grease gun hose lengths
Post by wannabebuilderuk on Oct 10, 2020 19:43:01 GMT -5
What fittings are on the grease lines, standard bsp I'm guessing.
The total cost is around 20 for fittings I need and can use a hose tail for relief valve return with some standard nitrile hose since it won't be under pressure, only need under 2m of hydraulic line so shouldn't be expensive.
Post by wannabebuilderuk on Oct 12, 2020 9:50:55 GMT -5
Was thinking of doing a 150mm to 90mm cone over 140mm and a 10mm section of the 90mm. The 90mm gives a circumference of 282.7 and the circumference of the c/c t6 cutout works out to be 283.4mm so I can squash the 10mm wide section and end of the cone to take the rough shape like AusJet did here