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Post by Jimmu on Oct 10, 2005 22:00:08 GMT 11
What needs to be done to fit a set of 33's to an MU?
Is a 2" suspension lift enough? Or do you need to fit wheel spacers to change the offset?
Anyones experience would be great!
Jimmy.
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Post by Pissy on Oct 11, 2005 12:01:47 GMT 11
I'm guessing but I'd say offset rims to start with and most likely at least 1'' body lift?
I am going to trial a set of half worn 285/75/16 BFG muds with just a 2" lift to see if its possible with out rubbing. I think the rims are slightly off set but by much.
Spacers are expensive?
Cheers
Chris
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Post by James W on Oct 11, 2005 12:57:07 GMT 11
I'm running 33" x12.5" MT's I have a 35mm body lift and 1" suspension lift. Using offset rims there is no problem at all at the rear, and yes I have fully articulated it. In the front there where a few issues, but not hard to fit. The plastic shrowd/couling under the bumper I took to with a jig saw and took about 1" off the ends. The rear of the front guard does foul with the tyres at full lock and articulation so I had the guards cut trimmed and painted by about 1.5" at the bottom tapering off to nothing about half way to the top of the arch by a panel beater, Looks real good, can't tell that it's been done, and cost less than $200. You should have seen his eyes light up when I pulled into his shop, all battle damaged, and then the look when I said I want it left as is but cut up a bit more. :-) The main problem with fitting bigger tyres is that no matter how much you lift, the clearance to the side of the wheel arch does not change, it moves up, but not out :-( So that defines a limit, a lift helps, mostly at the top but reducing down the arch.  |
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Post by justin on Oct 11, 2005 16:45:02 GMT 11
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Post by Witchdoctor on Oct 11, 2005 18:44:48 GMT 11
Wheel spacers are illegal for on road use in Oz you will have to do it with the rims.
Hope that is some help.
Dave
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Post by geeves on Oct 11, 2005 19:55:02 GMT 11
Spacers not allowed here either even though tyre shops still sell them. Even changing offset can cause wof issues. Rule in NZ basicaly allows you to increase the track (wheel center to wheel center) by 25mm before you need to spend $400 on getting a certifier to say this is ok. Also they worry about tyres outside the factory wheel arch. Even rubber flairs can mean a $400 trip to the certifier unless you have a 4wd freindly wof man
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Post by mulover on Oct 11, 2005 20:17:40 GMT 11
I basically have the same set-up as jamesw but with a bit more suspension lift, and i have got some 33x12.5 savero's to play with for a week, they are on nissan offset rims and look really cool, i have different front bar mounts, so i would say you would have to do some trimming in the inside front, and cut the guards like james discribes, i have taken alot out of mine but they still rub a little. I also have the narrow bush ranger flares on and they are just inside them.
JamesW, have you gained much with the 33's is it a good idea and have you got enought power to use them??
I have got 32's but am thinking of going 33x10.5x16 simex if i can get them, Thanks.
John.
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Post by James W on Oct 12, 2005 7:22:19 GMT 11
Putting bigger tyres on than the factory ones will require a certification as well as other mods stated here (in NZ) Wheel spacers will efectivly shorten the stud length? Justin says his fit was no problem, I don't understand metric tyre sizes but wonder if they are not as wide as 12.5", as the width was the cause of my clearance issues. Imagine a retangle, (wheel arch) with a smaller rectangle (tyre). Now turn the tyre onto a diagonal as you will see the corners are the problem. John, have I gained much, hell yeah... previously I had 31" AT's. so the 33" gave me a little lift, which seemed to on average lift me above ruts rather than the average of hitting mosty. Also the wide width 12.5" is a little wider than some ruts, weight is spread accross a greater area and just all round better performance. Power, well there is never enuff power but it does OK, never been grosly underpowered, low ratio helps, but I'd say grip or lack of is still the limiting factor although greatly improved. I guess the main point, is hell I have a lot of fun.. thats whats it all about for me! James ;D  |
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Post by justin on Oct 12, 2005 9:32:04 GMT 11
I would say you spot on the money there James, looking at the tables your 12.5" 33's are about 318 mm wide at the widest point, (which would be the center of the wall) so you would still be looking at 300mm at the tread, where as your 285mm is the width of tread on the road, so it would be the width of the tyre affecting your clearance. J
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HiMuZuLux
Isuzu Junior
IFS: A great reason to own a 9" angle grinder :)
Posts: 125
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Post by HiMuZuLux on Oct 12, 2005 9:47:22 GMT 11
Wheel spacers are not illegal in New Zealand, you do need to have them certified tho. You can slip on up to 10mm spacers over the existing studs, as long as there is enough thread left to safely bolt up the wheel nuts. If you use bolt on spacers then you can go up to 27mm - have a look at the ones I manufacture here www.4wdstuff.co.nz/products.html but don't buy any, they are too expensive. I am looking at having a batch CNC'd up shortly, which will reduce the cost down to probably $120 per pair. The bolt on ones also need to be certified, but as mentioned will not get cert if they are wider than those measurements. Cheers Steve |
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Post by mulover on Oct 12, 2005 19:44:37 GMT 11
Sure looks like it james, i have got my mates 33x12.5's on just now and i still have plenty of power below about 70km/h, am going out on a training run on saterday, nothing too rugged so i'll have a good play around and see what i think, eventually i will probably go 32x10.5 simex as i have been told that a 32" simex is pretty much the same height as a 33" normal tire. Will be very interesting to see what difference there is between the 32's and the 33's, I have noticed the steering is alot harder already!!!
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Post by James W on Oct 13, 2005 4:50:05 GMT 11
"I have noticed the steering is alot harder already!!!"
Yeah, and every bump on the road. It may be desirable to add a steering dampener, I've never worried.
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Post by mulover on Oct 13, 2005 18:27:56 GMT 11
I'm going rancho rs9000's all round soon, and i have thought about a dampener too, and i'm going to make the sway bar detachable and put it back on as well!!
I always have something to do!!!
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Post by James W on Oct 14, 2005 4:49:10 GMT 11
For one version of sway bar quick disconnects, see my website.
<------Link over there
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Post by mulover on Oct 14, 2005 18:51:03 GMT 11
I looked at that a while ago, i'm thinking in-cabin disconnection either by cable and pin or solunoid valve, just cuase i can and i know a few sparkys who can tell me if it will work or not, other idea is a pnuematic ram, not too sure yet, will let you know!!
Had a drive on the open road tonight, accleration after 80km is pretty similar to the 32's, so tomorrow will be the deciding day, hopefully i'll get some good photos to show you guys!!!
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Post by James W on Oct 16, 2005 7:06:08 GMT 11
I thought about an on dash control, but always have more ideas than time. However my thoughts did extend into that it would be very difficult to have the remote control of the sway bars actually pull in the sway bar as the forec can be quite a bit. I suggest that you consider controlling just a latch and drive each wheel up a little to latch the sway bar back in. (and release)
I'd love to help and have a lathe and mill if you want to combine efforts.
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Post by mulover on Oct 17, 2005 16:04:23 GMT 11
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Post by francesco on Nov 21, 2005 15:30:33 GMT 11
Sure looks like it james, i have got my mates 33x12.5's on just now and i still have plenty of power below about 70km/h, you mean thats as all she can go now? |
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Post by mulover on Nov 21, 2005 16:56:44 GMT 11
Haha, no, was good for 130km/h with the 33's on, but couldn't make them bite as they where too wide. am going simex one day soonish i hope!!
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Post by francesco on Nov 21, 2005 18:34:14 GMT 11
From what I have heard the Simex (Centerpedes?) are very noisy on road, I want to put the Baja Claw radials on..they come in 31", but the 33" are 12.5" wide. So not sure which one I am going to go for. Also am concerned about power lose with the 33".
Putting the 33"s will also mean Body lift, new rims, and flares as they are 12.5
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