Evan

Discussion thread for: 

That distributor is the size of a dinner plate, the only reason that it hasn't gone in the bin yet is because it's doing a good job filling that hole.

Can't say I've looks at Mega/micro squirts, in my mind they were shit 10 years ago and therefore still are but I imagine that has changed.

8 hours ago, BlownCorona said:

The top secret 1gz turbo  v12 supra has an ecu per bank, though he only had fairly old tech to work with 

1GZ's run 2 ECUs standard from memory, so might have been modified Toyota units?

Those go carts are the Hamilton Boys High year 13 metal work project, trademe it littered with them

12 hours ago, Roman said:

I wouldn't be too worried about injector angle to be honest, more important (in my opinion) for minimising tuning ball aches is that whatever you're spraying the injector onto is as hot as possible. (ie engine/coolant temp)

What are your plans for operating the injectors? As in, how many injector drivers will you have available? If you're grouping the injectors into sets of 3 or 4 then you might get some weird issues at idle and similar. But since it's a V12 it wont be affected so much as a 4 cyl or whatever anyway so probably a moot point.

TL;DR: I heartily approve of this project 

This is a real long term fuck around type hobby and I haven't thought much about the engine management side of things - I've  spent more time dreaming about stroking it to a 7.5 litre than anything else. In saying that it will probably end up with a Link batch firing in pairs, so 6 drivers needed. It really is dumb in my opinion that aftermarket ECU manufacturers don't have a model with 12 injector drivers.

23 hours ago, peteretep said:

legit man, going to cast your parts from melted down wheels?

Barra cylinder heads

On 29/11/2017 at 19:19, Ghost said:

First job for the new Volvo watercart

Ex Civil Whey/Fonterra?

Outside my office today

No external door hinges, which for a '65 it should have?

6 minutes ago, 64vauxhall said:

None of the pictures seem to work on the previous post. 

Think I broke the forum, try that?

Also get a load of this for some Carburetor foam. I put up a wanted ad on here for some more 40mm Weber IDF type 13/15s. Someone said there was one on trademe, it's mine now.

When I saw the ad I thought it was weird that it had all the caps on the fuel line pipes and on top plate, no matter it's the right type so I brought it. When it showed up I set about pulling it apart so that I can get it vapour blasted like the other 3 I have, the remarkable thing about this one, is that is appears to be brand new, although it is dull and a bit dirty on the outside I don't think this thing has ever had fuel though it.

Remarkable for something that is 40 years old, Once I get around to getting it blasted I'll slap it back together and put it next to the other 3. Still on the hunt for another 2 if anyone knows of any.

So Mr Vapour let the cat out of the bag earlier on about having the Webers act as throttle bodies with the injectors sitting in the manifolds underneath. Hopefully this gives an illusion of running on carbs when really it isn't. Buying 6 of the Heritage setup shown above would be cheaper (maybe) but where's the fun in that? Also I don't think they do an IDF/IDA style - only a  DCOE rep - might be wrong on that one though.

So I picked up a lone 'short' injector from NZEFI to get some basic dimensions off and see if things are going to fit. I have concerns about the amount of real estate between the two banks of intake manifolds and whether or not there is enough space to fit 2 rows of injectors and fuel rails, at this stage I think things are going to be ok.

That injector is a Siemens 600 and something cc job that should be more than plenty, it's 42mm front to back.

Originally I then drew up some injector bosses on the model shown a page or 2 back with the injectors put in at a 90 degree angle to the intake runner, so they are spraying perpendicular to the airflow. not Ideal but at the time I was too scared to try and draw them on an angle because I don't know what I'm doing/ learning as I go. 872463 people said that was dumb so I watched some more youtube videos and redrew it with the injectors pointing down, can't get too carried away with the angle because the wiring plug is going to clash with flange the Weber bolts to

So picked a number of 20 degrees from horizontal and called that good enough, also added a bar to tie all the pieces together and give the fuel rail something to bolt to.

Have ended up with:

I might have to buy a new screw driver for the occasion

^ yeah those Heritage injection set ups are the business

Barra

18 hours ago, cletus said:

There's an rx8 at possum Bourne motorsport with a bung motor ( I assume, it starts cold but not hot)

They want $2300 for it. Auto, black, I had a quick look, body looks pretty straight , clear coat coming off rear guard, some bumper scrapes etc

Good candidate for matty b/drillport/ modgies/ cut springs

If interested,  Julius is the man to speak to.

Julius is a pleasant man to talk to, could chat to that guy all day

It's hard to tell in the pics how bad it is. Are you in Auckland? Pull it to pieces and have @Mr Vapour Vapour blast it for you so it looks A+, get a new throttle shaft and bearing set from somewhere on the internet (Ebay, chances are that throttle shaft isn't straight which is making the situation worse). slap it all back together and see how bad it is then - it might be usable as is.

Re: mechanical stripping. Go to Supercheap auto and buy on of these:

http://www.supercheapauto.co.nz/Product/Rockwell-ShopSeries-Car-Polisher-180mm-1200-Watt/135285?menuFrom=1021759

You want one of those because A. it's $100 and therefore it's disposable and B. it has variable speed control. next buy 2 of the cheapest Nylon strip discs you can find like so:

https://www.machineryhouse.co.nz/G382

Chuck one of those discs on the sander/polisher and run it at the speed where it doesn't stop rotating when you put it against the paint (about speed 3 or 4 of the 6 steps those things have). It will take all the paint off with ease, and because it is rotating at like 2000rpm vs an angle grinder/DA  at 12000rpm it doesn't put enough heat into the panel to damage it, and also the noise is fairly low on them so you won't upset the neighbours - you do have to deal with the dust though. I say buy 2 discs because 2 is enough to strip an entire car.

I'm a 100% advocate for mechanical over chemical paint stripping using the above equipment, It's quite therapeutic sitting there moving a thing back and forth seeing all the paint get blown off.

2 hours ago, BobbyBreeze said:

Nice project! Looking forward to see what you come up with when its time to turn them to aluminium. Took me probably 50 castings to get my process reliable so expect some setbacks. Well worth it in the end though! 

Can you PM me a  $ of what you would charge to cast 12 of these things if I sent you some files of what I want the end result to be?

2 minutes ago, k-trips said:

Oh, I read it as the important part was you were trying to get a Jag V12 to run with home made injection rather than the crux being the sextuple of downdraughts on it.

KK, I'm going to refer you to post 1, paragraph 1.

14 hours ago, rusty360 said:

Looks very interesting. out of interest it looks like you can 3d model on fusion 360? And you can save your modeled part as a parasolid or a xt file?

So my problem is that because I havent got any prior knowledge of CAD things I don't know what is officially considered 3D modelling. Like those intakes are just a push/pull extrusion of a 2D sketch right, so is that considered 3D modelling? Fusion does allow you to do animations and join components together and stuff so I'm going to say yes it does.... Not sure re file types. One of it's biggest assets and biggest drawbacks is fusion 360 is cloud based, everything saves to the cloud, however you can export files, haven't looked into what formats though.