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One of our guys in the heavy fab shop has a hugong something like that ad. He uses it for tig and stick. Usually wound right up. For hours at a time. Has had a few minor issues. He purchased through duroweld in new plymouth. The 3 years commercial warranty was the main selling point. Any issues he just takes it back and they have sorted it.
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Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt
fletch replied to Roman's topic in Tech Talk
Check with robinson instruments in auckland. An inline gearbox from them might not be that expensive. As for the meshing, most of the nissan boxes can have a bunch of different plastic speedo gears all running off the same gearbox gear. -
123 slightly(like 1 tooth) lower than the petrol. 4/5 the same. The diff is the difference. Edit- i converted one to a rb25 bellhousing for a drifter mate and told him the ratios would be slightly different and he said he could not tell. I suppose 400kw is going to turn the wheels no matter what. Haha
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Was going to suggest the 6 speed nissan box. As it seems like your going to make a bix fit, you could go a nissan navara diesel 5 speed. They are same as rb25 turbo skyline, so strong, but also 80mm shorter. Most of them had better synchros than the skylines too. Can be had for 350-400 if you look around
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We buy a lot of pipe/steel/ss from azmuss in new plymouth. They have been dominating all the other suppliers for price. Pretty sure they are in h-town
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the runners are pretty short. -6cyl datsun its got to be better than a SU carb right? at idle the fuel already dribbles past the throttle plate i hope to turbo it so much heat, there is a ton of room in the top of the hat to put the injectors. putting them up from below would work too, but would lose the carb heat circuit i am fitting 2x 550cc ev14 short injectors into each carb. there is a good heat circuit through the carb floor, and intake floor. here is a diagram of some filthy U.S TBI carb, im doing the same thing but sideways. heres a kit for a similar carb
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Something like this.
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I dont want to put them in the manifold. I figured tbi would be at least a bit better than carb due to the ecu part.
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See the chicken scratchings below. I am about to put some injectors into some carbs but have a query about placement. Top drawing shows the fuel spraying on the throttle plate and as it opens it gets well smashed on the plate for good mixing, but ends up mostly going over the top above 50% throttle Lower one is stock throttle plate. I think at idle it will pool at the bottom of the plate? The injector location is my only option unless i can find the injectors i saw once that have a lottle 45degree deflector thingy on the end of them to allow me to mount them vertical. It appears to be easy to flip the plates so no issues with changing it. Any ideas welcomed
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So this made it to swapmeat and back, but i needed to change the hanger bearing as the driveshaft needed some more engagement in the back of the box, and the rubber was flying apart due to it not being designed to move with the suspension. I made a new hanger bracket to fit the later bearing and a spacer to lengthen the driveshaft. it took a few test fits on the hanger to get it right, but i got it fitted up Wednesday night and made it to chch today. win. except, somewhere north of amberley i smelt what i thought was rubber grease, and 10 minutes later i pushed the brake pedal and uh oh. made it to the thieves at safe r brakes in chch 5 minutes before closing to get the required caliper kit and limped to the inlaws on the handbrake. the front brakes are dunlop calipers as fitted to late 60s jags and aston martons. yes thats right, british. ughh so thats my saturday sorted....
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update got a 330 diff, got a 3.9 head out of a r31, threw it together with some bearings and seals and thought i would just chuck it in bro. well, it would appear that the 130 cedric, being the first if the nissan/datsun combo, has metric motor and box, imperial everything else. so now i have a 330 diff, with 130 brake cylinders. and 12mm studs on the back wheels, 1/2 inch on the front. I was going to run the 330 slave cylinders, with an imperial to metric hose, but they were only 3/4 cylinders vs the 1 inch of the 130 and since nobody has ever said, 'you know what?, i think i need less brakes on my datsun' so i had to swap the cylinders and lines. This was made harder by the fact that some old vice grip wielding barry has previously attempted to pull the fitting out of the cylinders and now they are round.... Next up, springs and blocks. easy. Except i fucked up bit and ordered the wrong rear shocks so i had to run these impressive specimens i found in a box of parts. they will do for now... I then decided that i had 3 weeks until my chch/hanmer roadtrip, so i would chuck in a 4 speed column change box to go with the 3.9 diff. How hard could it be right? Well the sneaky fuckers changed the style of gearboxes after the 130. the driveshaft was flanged at both ends. and it was longer.. no problem, @- i5oogt - found me one that he had been aging in a paddock for a while. except the rear half was too short so it wouldn't fit the hanger and the hanger was way different. no problem, i can fix that The box being longer hit the roof of the tunnel so i made that fit too, but i didn't take any pics as you dont need to see that The the fucking linkage didnt have enough travel as it was only for a 3 speed. Lucky i have some spare parts I had to mod one of the levers to make it have more throw. I found a welding rod in a puddle and dried it out a bit and it did the trick. Photo taken in potato mode so you cant see the quality bonus pic of custom racing shocks
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Can you reach it with a welding rod? Get your mate on the power switch of your arc welder and jam a 3.2mm rod onto thw end of the axle with plenty of juice. 1/2 a second after it strikes your mate turns off the power. Then pull axle out. Practice on a bit of steel to get the best time/current for good attachment. Not great on the bearings, but it will get you going.
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Tru tests have 3/4 frames and 7/8 forks. I know a few tru test foamers that will be keen on some wheels
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Did some things. Swapped diff housings to a spare one and rebuilt a 3.9 head to drop the rpms a bit on the highway. Also a little off the height. Hopefully finished this weekend, but only get a couple nights a week in the shed
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can recommend! you could also try sprockets.co.nz or something, they do them with the boss on them already. not cheap from memory, but could be the solution for people with no machining hookups
