NickJ

They seem to know exactly how much is in your savings and then charge $10 more, CBC are much nicer to deal with.

That cross hatch is gorgeous!

COSSACK!!!!!

That would be very backwards considering the move by manufacturers toward composite panels

What are the spheres normally supplied for?

Welcome to Chch, skids up Dyers pass tomorrow night?

I'll be keen, just not enough time to bake up some kids thankfully

Keep up the good work then, quite motivating seeing you boys in the news

Sounds like they had some tech they didn't want other people to see?

Anton actually spoke without being under duress about lowering a vehicle, its a cause for celebration! I drove this wee gem last night, its actually quite cool and will make a nice daily for zipping around chch

they have a sandblaster, useful to know

So glad I escaped before nightfall! (not) Big thanks to Mof and Felixx for the trip, actually was fun to head out of the city for the arvo

Made an arduino based carb balancer using an aliexpress pressure differential sensor, took all of 5 minutes to balance the dells Bar graph just tracks left or right depending on the pressure differential between the two inlets which are hooked up to the carb throats.

Looking at heading down south in the coming weeks so dragged the Niva from the shed to give the carbs some decent attention. With the balancer coded nicely I hooked it up and got both carbs sorted in under 5 min by balancing each one individually then checking between the two while adjusting the linkage until the graph read even, I'm quite astounded by how simple and effective the gauge worked! Hooked up, bar graph is to the right, indicating more vacuum in the right hand port. Adjust bleed screw until the bar graph was centralised, and done! I found the graph still bounced around the zero point a bit and I need to add some kind of damping in there but i'm unsure if it can be done with software or some kind of chamber in the lines to the sensor would be better, leaves me some pondering for the next few days. Made a shortish drive out to Sumner and back without any issues so i'm reasonable confident everything is happy.

Cheers buddy! bit of a mash of code stolen from everywhere to test the theory and make it go but have now its running i've cleaned most of it up and added the true pressure reading to the bottom line. The sensor has a 2kPa range, could be pretty good for your windflow aero messings about. Hopefully get time in the coming weeks to try hooking it up to the Caldina and see if I can get the MPGuino thingymabob running

Typical, bloody screen turned up today! Had a quick play and set up a script that took the value from my average pressure deviation and plotted it as a bar across the screen. Worked swimmingly when I blew in one tube, but pressure on the other had it inverting at half range, from a minor oversight in pressure difference from the pulses being way over the 2kPa sensor range it looks like i've destroyed the poor thing! No trouble though, i'll source another with a higher pressure range and go from there Cancel that, sensor is fine, I changed the rolling average count to try a different method and it all works fine, seems to be something in the values I'm using, hmmm. Thoughts??? //oldschool.co.nz/index.php?/topic/45307-nickjs-lada-niva-twincam/page-4

Interesting few weeks messing with the carbs, had issues with cylinders not doing much on idle, pulling plug leads didn't change anything. I tried all sorts of fiddling looking for manifold leaks but couldn't track it down. Guessing this was connected to the idle adjustments not doing much on the same cylinders I pulled the jets for the 100th time but this time flushed the passages resulting in near instant success, much happiness! Keeping track of fuel use I'm getting 250-280km/40L tank around town, that equals the open road use pre head gasket, need to find time for an out of town trip and hopefully be back to 400km/tank open road. I have suspicions the pump jets are a little rich from the way it hesitates at low revs, I'll give them a tweak and see how it responds. A few weeks back a differential air pressure sensor turned up from ali express, i've had it running on the work bench and but have waiting on a screen to also arrive so I can hook it up in car to balance the carbs, bit more hi-tech than a clear pipe filled with oil i've used in the past (and quite likely less effective). Today, still waiting on the screen I decided stuff it, lets just do it with the computer: Bet thats a sight not ever seen before, tuning a twin carb Lada with a computer! Things didn't go too well, with the sensor hooked up to the ports on carb #1 during the first run readings were full scale each way due to the pulses from each cylinder, to fix this I sampled at a higher rate and played with a time average over a set number of samples, this smoothed things out slow enough I could read directly off the screen. Opening a balance screw right out increased the pressure value while turning it right in decreased. Assuming this may have been a fluke fluctuation I tried again to the same result, bonus! I gently adjusted things to get a mid range value and closed the vacuum port only to find it had a residual leak, with darkness falling I've left it for now, but will fix the leak, re-test and hopefully confirm my balance made with the tube & oil method (which should be near perfect) If the screen ever turns up I plan on making a simple bar graph to show imbalance between the ports which should be pretty cool!

BS you couldn't live with a spot of rust anywhere on that car

Time to confiscate his springs

A few weeks ago I was given a Cebora 175 mig, owner told me the rectifier was dead but still worked ok on low power, he won a fancy new MIG so it was just taking up space. Got around to checking it over today and found the wirefeed works and it makes sparks (no gas to check any further) I pulled the rectifier out to bench test but after a visual showed the diodes loosing their legs i'd say the initial observation is correct. I'm told a new regulator is ~$200 but is there any reason I can't order diodes of ali and just replace whats there? ie multiple of http://www.aliexpress.com/store/product/High-quality-ZP30A-2CZ-Spiral-rectifier-diodes-30A-200-2000V-Screw-the-rectifier-diode/2021064_32606157729.html or http://www.aliexpress.com/item/MDS200A-3-Phase-Diode-Bridge-Rectifier-200A-Amp-1600V/537421812.html?spm=2114.01010208.3.54.UmBF3l&ws_ab_test=searchweb201556_10,searchweb201602_5_10037_10017_507_10032_401,searchweb201603_9&btsid=d1553b07-e0a7-44bb-89e7-1bdf81a6f70d Plan is to rewire the output and run on flux core until I can sort a bottle and reg for CO2

Now theres a top offer, cheers Felixx!

I'm interested, but since they've de-stocked the farm for the winter, work is slow and i'm having to watch my pennies. Hope to pick up some work over the upcoming Uni break and will have play money in time!

The savings in those tyres comes from less energy absorbed by tyre deformation as it loads, but it is hard to get the head around when they label it as less friction

haha, nice find, if that was closer and cheaper to NZ it would be nice to go FI on the 2105, one of them almost looks like a fiat manifold too but the bolt pattern is wrong.

I've hit a head with a hammer and block of wood that wouldn't move, darn thing popped off in quite a hurry, I now leave a strategic bolt or two in loosely so the head can't fall off or knock the valves around when things need to get rough