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I probably am, fun though :-) As I understand it (and probably wrongly) liquid (and gas for that matter) takes the route of least resistance so, on a log manifold, it rushes past the nearest outlets until the pressure builds up at the end, then it starts to go down each outlet in turn working from the farthest to the nearest. All this happens in a split second, of course, so I doubt that it is noticeable on a system like mine. I like the idea of something like the NOS manifold, all outlets are at the end and equal length so no favouritism :-) That's what I meant by a back to front 4-1 collector in 3D. Good find! I've never played with NOS, so didn't realise it was still in liquid phase at this point. For best results you need to keep it liquid as far as the metering jet, whether that is on the solenoid (as on Wizard of Nos kits) or the manifold.
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A workshop mending day. Compressor has been tripping out for the last couple of months so I thought it was about time I fixed it. Spoke to a very helpful engineer at a local repair shop. Call out £40, probably a pair for capacitors at £20 each and an overload button, total around £100.
Not a lot but then when I checked the capacitors for numbers I discovered that one of them had blown internally. Changing them is an easy job so I looked on line and found them on AliExpress. The existing units are Chinese so changing like for like Total cost, including shipping of 2 capacitors and the overload switch - £6.93!
The CNC Mill motor speed rotary button packed up yesterday but I managed to source one from my favourite Mill/Lathe parts supplier, Amadeal Ltd, and it arrived today so a little soldering to do tomorrow. Once that is done I can get on making parts for the nitrous system. Car goes back in for wiring Friday week.
The lamp on the Mill has never worked. I bought bulbs (the small bulbs with two exposed wires poking out of the bottom) for it some time ago but they were too big. Bought some smaller ones that are, hopefully, the right size but at 99p for 10 delivered it isn't much of a financial risk
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Last Edit: Dec 6, 2017 20:47:11 GMT by nalesutol
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Dec 12, 2017 15:31:32 GMT
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After a couple of hours work, and quite a bit of thinking, the nitrous manifold is done. Didn't turn out too bad, IMO, and cost only £2 in materials.
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tristanh
Part of things
Routinely bewildered
Posts: 990
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Dec 12, 2017 19:50:44 GMT
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Very professional looking.
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Whether you believe you can, or you cannot, you're probably right.
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sonus
Europe
Posts: 1,391
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Dec 12, 2017 20:56:57 GMT
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Found this in an old Thoroughbred & Sports Car Mag and thought of you nalesutol
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Current 1968 TVR VIXEN S1 V8 Prototype 2004 TVR T350C 2017 BMW 340i
Previous BMW 325d E91LCI - sold Alfa Romeo GTV - sold Citroen AX GT - at the breakers Ford Puma 1.7 - sold Volvo V50 2.0d - sold MGB GT - wrecked by fire MG ZT 1.8T - sold VW E-golf Electric - sold Mini Countryman 1.6D -sold Land Rover Discovery TD5 - sold
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Thanks Sonus :-) Never did like the flares on this car, they just look wrong, but that is just my personal opinion.
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Dec 14, 2017 15:42:28 GMT
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Whoooo, engine loom section finished. DCe are working on chassis and steering wheel/switch panel sections as I write. Car will go in early next year for fitment.
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keif
Part of things
Posts: 14
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Love this build.
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Dec 15, 2017 20:51:17 GMT
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Last Edit: Dec 15, 2017 21:48:28 GMT by nalesutol
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Dec 21, 2017 16:40:13 GMT
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New TIG welder arrived today (the pair in the background have stopped working). I can now get back to welding on brackets that will hold the exhaust shield on, once I work out what all the extra dials do :-) This one can also stick weld which may come in handy.
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alecf
Part of things
Posts: 424
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Dec 21, 2017 20:04:25 GMT
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My mate brought what looks like the same one earlier this year. I have no idea about using a TIG he uses them at work but was stumped a bit with some of the extra dials lol
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jamesd1972
Club Retro Rides Member
Posts: 2,907
Club RR Member Number: 40
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Dec 21, 2017 20:23:58 GMT
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As a last resort, I don’t know, you could resort to reading the manual !?
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Dec 21, 2017 21:13:41 GMT
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As a last resort, I don’t know, you could resort to reading the manual !? You mean the manufacturers opinion? The NOS manifold looks absolutely superb! Could you perhaps show us the mold and/or production process you used? I'm really intrigued by this complex piece of carbon (?) magic!
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Dec 21, 2017 21:41:31 GMT
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The manifold is aluminium, shaped on my mini mill (CNC mill is out of commission ATM) :-) Basically, drilled one hole to take a 1/8 NTP thread and 4 to take 1/16 NTP threads, then joined the 4 to the one with a 4mm drill. Once that had been successful, I went about removing as much material as I dared. Started off using a fly cutter to make the basic shape then used a bull nosed end mill to cut the curved bits. It went from 157gms to 52gms :-) A quick lick of paint to hide the imperfections and job done. The trickiest part of the process was getting the angles of the connecting holes right.
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Last Edit: Dec 21, 2017 21:51:37 GMT by nalesutol
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Dec 28, 2017 11:13:29 GMT
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Belated Christmas present to self arrived from China today :-) I can finish the nitrous nozzles now.
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Last Edit: Dec 28, 2017 11:14:42 GMT by nalesutol
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Dec 28, 2017 12:01:11 GMT
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Nice shiny Christmas presents are always good!
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Spent an hour ruminating on where to locate the nitrous injectors. I wanted to hide them but that made it very difficult to maintain them. I therefore think that the best place will be here. A bit of machining and tapping required but nothing too tricky. Can anyone see any issues with this location? PS. The cam cover will be repainted :-)
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Last Edit: Jan 3, 2018 9:49:30 GMT by nalesutol
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Phil H
Posted a lot
Posts: 1,448
Club RR Member Number: 133
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Won't that be then squirting at the bridge between the two valve ports? I'm assuming the same principles apply to nitrous injectors as fuel injectors so try and aim them at the port (or against the incoming airflow)? Took me a while to realise you've got twin injectors (and not the RS500 setup which fires into the bellmouth - would that be any good?)
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Last Edit: Jan 3, 2018 13:42:15 GMT by Phil H
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Hi Phil. Since posting this I have discussed it with my engine guru and we have decided to inject directly into the trumpets in the plenum, sort of like this.
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Last Edit: Jan 3, 2018 18:39:54 GMT by nalesutol
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Phil H
Posted a lot
Posts: 1,448
Club RR Member Number: 133
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Like the RS500 setup then Makes sense to me
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