tortron Posted May 29, 2020 Report Share Posted May 29, 2020 Harder than JB weld? Quote Link to comment Share on other sites More sharing options...
SOHC Posted May 31, 2020 Report Share Posted May 31, 2020 My Volvo has the rear lights on permanently when the ignition is on but when the stop lamps come on they go out, sounds like a bad earth? Quote Link to comment Share on other sites More sharing options...
M.H. Posted May 31, 2020 Report Share Posted May 31, 2020 Is there anything cool I can do with this 24v generator that came off my land rover? It's huge and weighs heaps 1 Quote Link to comment Share on other sites More sharing options...
Yowzer Posted May 31, 2020 Report Share Posted May 31, 2020 Make a wind turbine 3 Quote Link to comment Share on other sites More sharing options...
SOHC Posted June 2, 2020 Report Share Posted June 2, 2020 Or a welder https://books.google.co.nz/books?id=-yUDAAAAMBAJ&pg=PA142&dq=arc+welder&hl=en&ei=Fm-pTarsMo7XiAKd19nvDA&sa=X&oi=book_result&ct=result&redir_esc=y#v=onepage&q=arc welder&f=false Quote Link to comment Share on other sites More sharing options...
a.craw4d Posted June 24, 2020 Report Share Posted June 24, 2020 (edited) Going against oldschool protocol here but at what point would you need a cert for raising a car and chucking a set of mud tires on it? Assuming there's no tire clearance issues on suspension components and structural bodywork and guards flared to cover tires. How much higher with say aftermarket springs could you go before all the suspension geometry goes out the window? This is all hypothetical but keen for a laugh to have a lifted shitbox on mudders. I understand a 195/60r15 tire is around 24inches high and going to 32 inch muds would give 4 inches more ground clearance. Is it legal to put spacers between the front and rear subframes (if applicable) and the body to achieve a body lift? Cheers. Pic for inspiration/ clarification. Edited June 24, 2020 by a.craw4d Photo added. 2 Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted June 24, 2020 Report Share Posted June 24, 2020 @AndyGal has a jacked MX5. 2 Quote Link to comment Share on other sites More sharing options...
cletus Posted June 24, 2020 Report Share Posted June 24, 2020 Have a look at the modification threshold on lvvta.org.nz. that shows what you can do without cert It wouldn't be much though. Tyre size would be limited by no more than 5% greater overall diameter, offset rules limits how sticky outy the wheels can be, and lift would be limited by what springs you can fit in a factory shock and still have 40mm droop 1 2 Quote Link to comment Share on other sites More sharing options...
sentra Posted June 25, 2020 Report Share Posted June 25, 2020 The ticket is the same regardless of how many lvvta rules you break, might as well goto town 3 1 Quote Link to comment Share on other sites More sharing options...
Nominal Posted July 3, 2020 Report Share Posted July 3, 2020 Any idea what a good choice would be for steel selection for a torsion bar spring. Needs to be something I can get in NZ. OD ~11mm, length ~1140mm. I need it to twist about 90 degrees. @ajg193 @sheepers Quote Link to comment Share on other sites More sharing options...
Bling Posted July 3, 2020 Report Share Posted July 3, 2020 https://www.springs.co.nz/ springs to mind as people that would know what to use, potentially have it in stock /be able to source. /no pun 1 Quote Link to comment Share on other sites More sharing options...
ajg193 Posted July 3, 2020 Report Share Posted July 3, 2020 9 hours ago, Nominal said: Any idea what a good choice would be for steel selection for a torsion bar spring. Needs to be something I can get in NZ. OD ~11mm, length ~1140mm. I need it to twist about 90 degrees. @ajg193 @sheepers i don't have any experience with spring design, so can't really help you here. Looks like some people see bars made from 4340, I'd assume heat treatment would be required after manufacturing? Some simple calcs estimate you'd have around 160 Nm of torque on it to get 90 degrees of twist from end to end. This torque will give a shear stress of like 600 MPa - this is getting quite high. You'd want a material with at least 1200 MPa tensile strength. 1 1 Quote Link to comment Share on other sites More sharing options...
Nominal Posted July 3, 2020 Report Share Posted July 3, 2020 1 hour ago, ajg193 said: i don't have any experience with spring design, so can't really help you here. Looks like some people see bars made from 4340, I'd assume heat treatment would be required after manufacturing? Some simple calcs estimate you'd have around 160 Nm of torque on it to get 90 degrees of twist from end to end. This torque will give a shear stress of like 600 MPa - this is getting quite high. You'd want a material with at least 1200 MPa tensile strength. Thanks. It's a torsion bar that goes inside the tailgate hinge for my woodie. The ends are ground square to fit into a cast bracket. One end shown below. 1 Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted July 3, 2020 Report Share Posted July 3, 2020 I'd be talking to a spring maker. Bellamy and east in chch, or maybe chamberlain's. (No doubt there are places closer to you) Quote Link to comment Share on other sites More sharing options...
ajg193 Posted July 3, 2020 Report Share Posted July 3, 2020 If you drop the diameter to 9.5 mm you'll get about 90 Nm of torque and a stress down around 500 MPa, possibly a more suitable design Quote Link to comment Share on other sites More sharing options...
sheepers Posted July 4, 2020 Report Share Posted July 4, 2020 19 hours ago, Nominal said: Any idea what a good choice would be for steel selection for a torsion bar spring. Needs to be something I can get in NZ. OD ~11mm, length ~1140mm. I need it to twist about 90 degrees. @ajg193 @sheepers You won't be able to harden a length like that after you've shaped the ends so get a bit of spring steel already heat treated from somewhere like CMI. 1 Quote Link to comment Share on other sites More sharing options...
sheepers Posted July 4, 2020 Report Share Posted July 4, 2020 Also you'll be fine to hot work the ends to shape it. It won't cause localised crystallisation to badly in something that small. Quote Link to comment Share on other sites More sharing options...
NickJ Posted July 13, 2020 Report Share Posted July 13, 2020 Anyone have a link to the exact COVID WOF extension dates? All I can find is documents saying there is an extension but nothing that says what the end date is and what qualifies. The Datsun and Niva both expired during lockdown and wouldn't mind throwing rego on for a month to give them a legal spin around the block. /useless at the google Quote Link to comment Share on other sites More sharing options...
Nominal Posted July 13, 2020 Report Share Posted July 13, 2020 Just now, NickJ said: Anyone have a link to the exact COVID WOF extension dates? All I can find is documents saying there is an extension but nothing that says what the end date is and what qualifies. The Datsun and Niva both expired during lockdown and wouldn't mind throwing rego on for a month to give them a legal spin around the block. /useless at the google https://www.nzta.govt.nz/about-us/coronavirus-disease-covid-19-services-update/documents-with-temporary-extensions/ Quote Link to comment Share on other sites More sharing options...
NickJ Posted July 13, 2020 Report Share Posted July 13, 2020 Just now, Nominal said: https://www.nzta.govt.nz/about-us/coronavirus-disease-covid-19-services-update/documents-with-temporary-extensions/ Am I blind or does it say exactly what date the wof extension is valid until? All the external links come up as dead Quote Link to comment Share on other sites More sharing options...
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