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PostPosted: Sun Sep 27, 2009 10:12 pm 
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1360cc
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I'm surprised noone has put anything up in relation to suffering wheel bearings :lol:


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PostPosted: Sun Sep 27, 2009 10:58 pm 
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willy wrote:
I'm surprised noone has put anything up in relation to suffering wheel bearings :lol:

Get the preload right, and they should be fine.
Cooper S Timken kit is the same as on a Ditch Witch trenchdigger.

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PostPosted: Sun Sep 27, 2009 11:05 pm 
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848cc
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Not sure i follow. How does it affect wheel bearings?

The vehicle doesn't change in weight, the cornering and braking forces don't change. If anything putting a bigger wheel on means less rpm for a given vehicle speed - surely a bearing saver if anything?

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PostPosted: Sun Sep 27, 2009 11:37 pm 
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1275cc
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The weight of the wheel increases. And its the rotating mass attached to the bearing that will kill it. The wider radius creates a larger moment that although rotating slower puts more load on the bearing. And then youve got corners and more tyre on the ground and more im sure other people will bring up.

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PostPosted: Mon Sep 28, 2009 6:38 am 
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Big wheels = bigger offset outwards = more static and dynamic loading. But the biggest killer of front wheel bearings is too little or too much preload.
Read my writeup in the how-to forum.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Mon Sep 28, 2009 7:37 am 
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1275cc
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toymini76 wrote:
Good idea for the stud conversion. I was going to go the same way but ended up buying some 13" superlights. So what brand are the tyres you are using and where did you get them from?? Looks like a pretty good option if the tyres are reasonably priced.
Do you have a time frame in mind for finishing it off?
Again, Awesome car.....
Phil



Phil I'm hoping to have it pretty close to roadworthy by the end of the year, after it is painted it will need to be put back together and the things like wiring, driveshafts, exhaust and radiator will need to be done.

The Tyres are Continental sportcontact, I got them in through california USA via germany. Cost me just on a grand to my door for the set. Pretty expansive but the mini will be a weekend car and shouldnt do to many miles.

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PostPosted: Mon Sep 28, 2009 7:40 am 
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drmini in aust wrote:
Big wheels = bigger offset outwards = more static and dynamic loading. But the biggest killer of front wheel bearings is too little or too much preload.
Read my writeup in the how-to forum.


Kev my wheels are offset way into the guards, looks like they are sitting exactly where they would with spacered drums on, would this make it easier on the bearings?

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PostPosted: Mon Sep 28, 2009 11:43 am 
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13secmini wrote:
drmini in aust wrote:
Big wheels = bigger offset outwards = more static and dynamic loading. But the biggest killer of front wheel bearings is too little or too much preload.
Read my writeup in the how-to forum.


Kev my wheels are offset way into the guards, looks like they are sitting exactly where they would with spacered drums on, would this make it easier on the bearings?


that's what it looked like to me - and yeah, much easier on the bearings - it's the wide offset that kills them (and poor preload)


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PostPosted: Mon Sep 28, 2009 11:55 am 
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ET 13.457 seconds , OH YEAH !!!!
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Looks great Brad, love the wheels.

Yea they are only 14x6 so better than 13x7's and the rolling diameter is similar to 13's, mine are 505mm OD 175/50R13.

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Starlet Conversion:
http://www.ausmini.com/forums/viewtopic.php?t=15484


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PostPosted: Mon Sep 28, 2009 1:48 pm 
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848cc
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Greater offset is certainly a concern - and would add to bearing load. However i beleive the moment of inertia of the wheel would have little to no affect compared to the loads seen during cornering and braking. There would be at least a factor of 10 between the two load types.

The width of the tyre and wheel themselves would have no affect on bearing load (except aforementioned offset). A larger contact patch doesn't mean more loading, it just means there is more area to spread the load and therefore less work for the tyre to do.

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PostPosted: Mon Sep 28, 2009 7:55 pm 
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998cc
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Love them wheels, and that motor slots in so nicely. This is gonna be another great conversion. Hope you can find a cheaper source of tyres, looks like too much fun to only drive on weekends.

Madmorrie


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PostPosted: Thu Oct 01, 2009 2:19 pm 
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13secmini wrote:
NOTE: wheels are 14x6, tyres are 195/40/14 :D

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What brand wheels are they? They're hot! 8)


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PostPosted: Thu Oct 01, 2009 7:09 pm 
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They are actually Yokohama wheels. They came in to oz from japan on a honda civic built for rallying. They weigh around 3kg each. :D

The shell was dropped at the painters this morning, lets hope for a good outcome!

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76 Clubman B16a2 Vtec AWD Turbo 12.9@105mph
https://www.youtube.com/watch?v=V9PW49e1hYs


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PostPosted: Thu Oct 01, 2009 8:16 pm 
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Looking good. Fingers crossed for ya.

Can you post details of how the conversion to 100mm pcd was done. I think a few would be interested in this.

Cheers
Madmorrie


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PostPosted: Fri Oct 02, 2009 7:33 am 
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madmorrie wrote:
Looking good. Fingers crossed for ya.

Can you post details of how the conversion to 100mm pcd was done. I think a few would be interested in this.

Cheers
Madmorrie


Sure, well the secret in doing this is in the wheel stud size. You have to go to a bigger stud, i think i went the next thickness up, they are an old holden/chev stud. With them you can open up the original mini stud hole on the flange. Mine were done by sainty (drag racing team) here in sydney.

They redrilled the 4x100 pcd into the flanges and by using the larger stud it took out the entire original hole.They had to drill the rear drums as well. The front im running camira discs so the rotor is already 4x100. Cost me close to $200 for the work.

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76 Clubman B16a2 Vtec AWD Turbo 12.9@105mph
https://www.youtube.com/watch?v=V9PW49e1hYs


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