Page 1 of 1

33x12.5x15 on hilux

Posted: Wed May 17, 2006 9:29 am
by snave
I have a 1987 hilux. I want to put 33x12x15 on 15x8 rims on it but have been told these are to big & not legal & I will not get a wof is this right ?.
I have enough lift to fit these wheels just don't want to fork out for new tyres that wont be legal

CHEERS MIKE

Posted: Wed May 17, 2006 10:01 am
by SupraLux
Its not the tyres, its the rims... you must fit factory rims to any vehicle, or rims with factory width and backspacing.

The rules state that your track width (centreline of one rim to centreline of the other) must be +/- 25mm of factory spec.

The standard aftermarket 8" rim on a Hilux is 2" wider than factory steel 6" rims, therefor the track width will be 50mm greater than factory spec (as the backspacing is the same, so each side is pushed 2" further out, pushing the centreline 1" further out on each side, therefor adding 2" or 50mm to the overall figure)

This requires cert, and will also probably need rubber/glass flares to keep the tread inside the guards.

So yeah, sorry... welcome to the nightmare the LTSA have created... don't get me started on them...

Steve

Posted: Wed May 17, 2006 12:11 pm
by Clint
I've heard some real dodgy buggers keep the old wheels & tyres & put them on to pass WOF, I don't think theres anybody like that around here though...

The sad thing is that few would argue that the average old hilux handles far better on a set of 8" rims & 31x10.5's than on the stock rubber.

Cheers
Clint

Posted: Wed May 17, 2006 1:28 pm
by SupraLux
Clint wrote:I've heard some real dodgy buggers keep the old wheels & tyres & put them on to pass WOF, I don't think theres anybody like that around here though...


Hahaha... no, of course not :)

rim width

Posted: Wed May 17, 2006 2:48 pm
by U-BOAT
yea i no all about having larger than standard rims :D

i got pulled up recently and got a ticket :oops: for rims being overwidth

I tried to tell him they are only slightly bigger than standard

33x14x15 boggers on 12x15 rims!!! :twisted:

Oh well i got diversion, i must get round to certifying the rims :wink:

Posted: Wed May 17, 2006 3:29 pm
by PajeroMan
The other thing the LTSA will ping you on is up sizing your tyres to more than 20mm + Overall Diameter.

On most vehacles the tyre placard will state what size tyres the manufactuers state are acceptable. This also states Load rating and spped rating on them. If the tyres you plan to put on are bigger than +20mm then they will ping you on it, cause it changes the speedo to much. Also some bigger tyres have a lower load rating on them and if it is lower than the tyre placard states it is an illegal tyre.

my 2c worth

Posted: Wed May 17, 2006 9:06 pm
by snave
ok so I can put them on but I need to get a cert . so whats involved in getting a cert how much does it cost & who in CHCH can do a cert ?

CHEERS
MIKE

Posted: Wed May 17, 2006 11:31 pm
by WACKO
just get the cop to prove they arnt a factory item. pajero covertibles have standard 215/85/18 which is equivilent to a 33" o/d, (grantd the width is still an issue) but if the placard is no longer on the car how are you going to prove to the cop? its all revenue gathering!!!!! :evil:

Posted: Thu May 18, 2006 8:23 am
by SupraLux
Wayne Martin... Vehicle Cert Services. Good with 4WDs...

What other mods are you looking at doing? It would be worth getting everything sorted because if you do this, then next month do a body lift you'll need to pay again and get a new cert plate...

Steve

Posted: Thu May 18, 2006 11:57 am
by wjw
PajeroMan wrote:The other thing the LTSA will ping you on is up sizing your tyres to more than 20mm + Overall Diameter.

On most vehacles the tyre placard will state what size tyres the manufactuers state are acceptable. This also states Load rating and spped rating on them. If the tyres you plan to put on are bigger than +20mm then they will ping you on it, cause it changes the speedo to much. Also some bigger tyres have a lower load rating on them and if it is lower than the tyre placard states it is an illegal tyre.

my 2c worth


I'm sure I read it was 5% ????!?!??!

Posted: Thu May 18, 2006 12:09 pm
by PajeroMan
I'm sure I read it was 5% ????!?!??![/quote]

Not 100% but you will proberlyu find the guys in tyre shops will go on actual size not percentage.

I was running 265/70R15 on my truck and i wanted to put some huge mothers on it, But i had two problems.
1: I would need a gearbox mod kit so i wouldnt blow anything up.
2: I would need to re-do my speedo as it would be out dramatically, Now that on top of the cost of tyres is far to much. So i stuck some 31X10.50R15 GoodYear Wrangler AT/R. And wow. Even though they were +15mm taller it was an acceptable limit.

Just pays to check these things BEFORE getting the tyres, always helps.

Image

Posted: Thu May 18, 2006 12:17 pm
by 4WDbits
If you want the low down on wheels and tyres and low vol cert etc, have a look at http://www.lvvta.org.nz/Wheels&Tyres.pdf

Posted: Thu May 18, 2006 12:19 pm
by Petemcc
for cert theres another guy in chch who does it don someone 3490106. not sure how good he is as got mine through wayne, was quoted $100 cheaper than wayne and told the plate would take 3 to 4 woking days to come through. wayne said 3weeks, mine took 6 weeks due to sum guy who prints the plates up in auck being sick for 2 weeks or sumthing like that. just something you might not be aware of that there is a w8 and you cant get a warrent untill the plate comes through so i was stuck with an illegal vehicle for 6 weeks. you can still get insurance while w8ing on the plat if its up to a warrentalbe standard, just get insurance company to make a note of it. my thoughts
Pete

Posted: Thu May 18, 2006 2:15 pm
by SupraLux
For the record, I think part of the delay with Wayne was that he was incredibly busy and a bit behind in paperwork... The MU cert plate took 2 months to get here...

The "other guy" in Christchurch had a reputation for being very hard on 4WDs when I first got into looking at certs and stuff, so I have always used Wayne and find him very knowledgable and sensible. His views on the LTSA are also worth a listen :)

Steve

Posted: Sat May 20, 2006 8:08 pm
by snave
Thanks for the good advice guys
MIKE