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is there a layout to follow when it comes to doing the design approval process, I have three things that will need to go through this process(rear knuckles, rear subframe and front LCA's)

I have the basics of the knuckle drawn in cad that still needs a little work before its completed, the LCA's I could probably draw up but the rear subframe is way to technical for my skills.

obviously have to supply information on welding processes

lastly should i get NDT done before or after as all are made already and happy to add/change if requested

IMG_0724.PNG

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Are there any regulations around exhaust brakes? The isuzu engine im fitting in my discovery has one and was thinking about keeping it, would come in handy when towing heavy loads

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I need to make some wheel location rings. What materials are acceptable.

 

The diameter on the hub is too small for the wheel spacers and for the wheel center hole.

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1 hour ago, Adoom said:

I need to make some wheel location rings. What materials are acceptable.

 

The diameter on the hub is too small for the wheel spacers and for the wheel center hole.

Most ones supplied by the retailers selling aftermarket wheels are plastic.  Some are alloy but very few.

Why not try ringing a local wheel shop with the ID of the wheels, ID of the spacers, and the OD's of the spigots, and see if you can just buy them.  They're normally only $7-$8 each anyway.
If you don't feel like calling, PM me your measurements and I can ring and ask tomorrow for you

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15 hours ago, 1vaknd said:

is there a layout to follow when it comes to doing the design approval process, I have three things that will need to go through this process(rear knuckles, rear subframe and front LCA's)

I have the basics of the knuckle drawn in cad that still needs a little work before its completed, the LCA's I could probably draw up but the rear subframe is way to technical for my skills.

obviously have to supply information on welding processes

lastly should i get NDT done before or after as all are made already and happy to add/change if requested

IMG_0724.PNG

probably hold off on NDT till its been thru TAC

how to fill out a design approval-

https://www.lvvta.org.nz/documents/infosheets/LVVTA_Info_01_2016_LVV_Custom_Independent_Front_and_Rear_Suspension_Approval_Application_Guide.pdf

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2 hours ago, 00quattro00 said:

Are there any regulations around exhaust brakes? The isuzu engine im fitting in my discovery has one and was thinking about keeping it, would come in handy when towing heavy loads

nope nothing about exhaust brakes,

 

the only semi relevant thing is adjustable exhaust noise flaps/things like that that adjust exhaust volume are not allowed- but I think if the exhaust is not loud with the exhaust brake off or open, should be ok

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2 hours ago, Adoom said:

I need to make some wheel location rings. What materials are acceptable.

 

The diameter on the hub is too small for the wheel spacers and for the wheel center hole.

steel or alloy, the plastic ones would not be acceptable with a spacer, unless the hub spigot sticks out far enough to locate the wheel properly

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47 minutes ago, cletus said:

steel or alloy, the plastic ones would not be acceptable with a spacer, unless the hub spigot sticks out far enough to locate the wheel properly

I just went and had a measure. It would need to be super skinny, with a step in it. Could I machine down the diameter of the hub spigot and press on a steel sleeve to make the spigot taller, and a more better diameter? Maybe 70mm and extend it right into the wheel, so I could just stack two spacers?

Here are the measurements I took.

20190319_200553.thumb.jpg.b8335993c1cd8d5d6e86462042a3c6f4.jpg

Note: the taper on the hub spigot is part of the casting, so it's not uniform.

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1 hour ago, Adoom said:

I just went and had a measure. It would need to be super skinny, with a step in it. Could I machine down the diameter of the hub spigot and press on a steel sleeve to make the spigot taller, and a more better diameter? Maybe 70mm and extend it right into the wheel, so I could just stack two spacers?

Here are the measurements I took.

20190319_200553.thumb.jpg.b8335993c1cd8d5d6e86462042a3c6f4.jpg

Note: the taper on the hub spigot is part of the casting, so it's not uniform.

Why not get a custom wheel spacer made up that locates everything correctly?

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yeah that^. was going to draw a pic, that would be much better.

 

znoelli in auckland makes them to order

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may need to consider increasing the chamfer on the wheels transition from mounting face to hub bore so the spacer has enough meat, or consider steel rather than aluminium if its very thin

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On 17/03/2019 at 20:20, cletus said:

definitely a good idea to use centering spacer.

 

there was a q&a thing on the lvv website which said you couldn't redrill a 4 stud disc to 5 stud or vice versa,  but have had a few brake kits approved like that where the holes were pretty close together, but then had a plate over the extra holes so the whole thing was sandwiched together

a lot of the MRP brake kits come with multi drilled discs

This is one of those hub infront of disk setups so wheel pcd is not changed at all. 6 holes to bolt the disk to the hub. I have chosen a rotor as close as I can find off the shelf. 

Would that be considered any different?

The mounting bolt pcd on the rotor is unfortunately ever so slightly larger than the one on the hub.

Looks like I will redrill in the space in-between. Is there a minimum distance to the edge I can have the holes?

I'll get someone to make the centering ring and drill them

Here's a pic

 

 

IMG_20190323_103326.jpg

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Have purchased some coilovers for my Toyota  that have been welded to spindles as per the rules but I dont have the supporting paperwork for crack testing. I'm i able to just get them crack tested again now?

20181209_143419.jpg

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Yes, but see your certifier to get an NDT form to make sure they are NDTed to the correct standard by an appropriately qualified person. 

Also known as an "F008 - LVVVTA Non-destructive Test Request Form"

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How much can be changed on a car with a modification declaration certificate before it would need a new LVVTA cert?

 

 

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1 hour ago, ajg193 said:

How much can be changed on a car with a modification declaration certificate before it would need a new LVVTA cert?

Very little, but in service replacements only. ie: anything that could be expected to wear out.

One other thing you need to remember about a declaration, it is NOT a statement of safety, all it is, is a document that confirms that a vehicle was modified at the time the declaration was issued. It says NOTHING about how safe it is or isn't. 

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1 minute ago, KKtrips said:

Very little, in service replacements only. ie: anything that could be expected to wear out.

 

For example, this car looks to have a lot of new stuff on it that probably would put it over the limit?

https://www.trademe.co.nz/motors/specialist-cars/competition-cars/auction-1964567457.htm?rsqid=00664f01e6ad40bc9d6333d92680c7ee

Can't really see much of the suspension but it looks like it has quite new coilovers in the back at least

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Depends what the wording is on the declaration I suspect. He really should put a photo up of the declaration. 

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