Build thread (finally :D)- 85mm Garrett TV8101

[wannabebuilderuk]

Sneak preview of the flanges and end cap I'll be receiving tomorrow



Definitely will be using the company again as the cheapest out of all the quotes by miles!

[wannabebuilderuk]

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

[wannabebuilderuk]

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.

Can't wait to piss off the neighbours

[racket]

Brass spray nozzle will be fine as its "liquid cooled" by the fuel , just don't have any propane burning for too long

[wannabebuilderuk]

Is kerosene easy to light when atomised with a spark plug and taser module or would I need a small propane pilot.

Wonder if I could get one of these working www.ebay.co.uk/itm/143567953411
www.ebay.co.uk/itm/133446662177

[racket]

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.

[wannabebuilderuk]

Pipeshop at work has started welding it up, looking good

[wannabebuilderuk]

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

[racket]

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

[wannabebuilderuk]

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.

[racket]

Yeh , 1/8 BSP on the flexible grease gun lines , with high pressure fueling we only need small bore lines as the plenty of pressure available to force the fuel through .

I only use 1/4" OD nylon line on my 12/118 engine fuel line and find theres <10 psi pressure drop across it

[wannabebuilderuk]

I'm using 1/4 bsp fittings with 6mm od 1mm wall line.

I might be able to use that grease gun flexible hose but as my gauge line, using a 1/4 male/female with 1/8 test point and a 1/8 to 1/4 female/female swivel.

Does it matter if I have the gauge port right after the pump/relief valve, was thinking of having pump - 3/8 to 1/4 male/male - relief valve - test point fitting - length of 6mm line to nozzle.

[wannabebuilderuk]

Best way to clear your head to design


*edit

10 minutes later

[racket]

Hi Ben

Totally agree

It was a nice sunny afternoon yesterday so we went fishing on the beach for www.hookedupmagazine.com.au/how-to/australian-salmon/



Watching the whales heading South to summer over in Antartica and the Pacific Ocean stretching out in front for several thousand miles certainly clears the head

Cheers
John

[wannabebuilderuk]

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

Nov 8, 2017 8:58:14 GMT -5 ausjet said:

Today I finished off the flame tube and slip joint.