92 Cup Restoration Project
10-01-2007, 02:26 PM
#47
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With that thought, I put another call in to Sunset. Parts lists show a different wheel carrier for the front($1500ea) plus some differences in the rear. Put my order on hold to sort it all out. I considered the hubs(4) affordable @$1680. But the unknowns and extras may make it unfeasible. Read: unaffordable. :-(
Thanks for the heads-up.
10-01-2007, 02:29 PM
#48
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Thread Starter
What performance advantage were you hoping to get from you $1680? The Hubs are interesting, but not that important from a performance perspective. Most of the Euro Cup cars have been converted to the steel hubs.
The wheel carrier is simply a C2 Turbo wheel carrier and the hubs should work with a standard hub carrier if you still want to spend $1680 + stub axles.
The wheel carrier is simply a C2 Turbo wheel carrier and the hubs should work with a standard hub carrier if you still want to spend $1680 + stub axles.
10-01-2007, 02:54 PM
#49
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Weight loss. Any idea of the total vs. steel hubs?
If the conversion becomes too expensive, I may have to be satisfied with lighter wheels. As I assess weight reduction, it's like horsepower. The first few pounds lost/hp gained are easy. After that...
10-02-2007, 08:02 PM
#53
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Thread Starter
"Is that car in kingston?"
The car is at Advanced Automotive in Newburg. Feel free to come by and see the progress. Tom Florio is the owner of the shop.
The car is at Advanced Automotive in Newburg. Feel free to come by and see the progress. Tom Florio is the owner of the shop.
10-03-2007, 04:56 AM
#54
Racer
Gentlemen,
you can buy heaps of aluminium hubs here in Europe because we all convert our cars to steel. Too many of us had unwanted wheel movement of the scariest kind...
But if you are for lightweight, go for it! The weight of your cars will eventually be reduced by the weight of your front wheels...
you can buy heaps of aluminium hubs here in Europe because we all convert our cars to steel. Too many of us had unwanted wheel movement of the scariest kind...
But if you are for lightweight, go for it! The weight of your cars will eventually be reduced by the weight of your front wheels...
10-03-2007, 06:45 AM
#56
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My cup car still has aluminium hubs - what are the potential problems with keeping these? Anatol, you refer to "unwanted wheel movement of the scariest kind..." - sounds, well, scary!
Edited to add: Just re-read the last couple of posts - so can I expect the wheels to fall off???
Edited to add: Just re-read the last couple of posts - so can I expect the wheels to fall off???
10-03-2007, 08:04 AM
#57
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The wheel won't fall off, the hub it is held in the bearing with the stub axle. However, with the exception of this Cup car, we have replaced all of the aluminum hubs with steel. These happen to be in very good condition and due to the originality of the car, they were retained.
The aluminum hub works slightly different than the standard steel hub. The part that is inserted into the bearing is very small, only about 10-15mm compared to the steel hub which is 30-35mm. The mating stub axle with the ABS ring is then pressed into the bearing and mates with the backside of the hub. When this is torqued together, the two parts should touch and squeeze the bearing slightly. The steel hub has an ABS ring and bolt that functions similarly, but the hub is pressed all the way through the bearing.
The aluminum hub works slightly different than the standard steel hub. The part that is inserted into the bearing is very small, only about 10-15mm compared to the steel hub which is 30-35mm. The mating stub axle with the ABS ring is then pressed into the bearing and mates with the backside of the hub. When this is torqued together, the two parts should touch and squeeze the bearing slightly. The steel hub has an ABS ring and bolt that functions similarly, but the hub is pressed all the way through the bearing.
10-03-2007, 08:10 AM
#58
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"The wheel won't fall off, the hub it is held in the bearing with the stub axle"
That's reassuring.
Presumably then, the wheel will just "float" a little and if the hub breaks at high speed, may point in a different direction to intended? No problemo. Phew. And I was getting concerned.
That's reassuring.
Presumably then, the wheel will just "float" a little and if the hub breaks at high speed, may point in a different direction to intended? No problemo. Phew. And I was getting concerned.
10-03-2007, 08:14 AM
#59
Nordschleife Master
Thread Starter
If the hub breaks, the wheel is only held in by the brake disk and caliper and may in fact fall off. I think what was referenced above is the hub loosening in the bearing. You have aluminum against steel with heavy loads and may become loose in the bearing. It is this that I was referring to as "not falling off". Obviously, if something physically breaks, like the hub itself, either steel or aluminum, you may have a scary moment.
10-03-2007, 08:32 AM
#60
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With the aluminium hub, as Geoffrey says, "the part that is inserted into the bearing is very small". In my experience if a front wheel has a hard impact then this part of the hub gets distorted & the wheel runs out of true. Nothing breaks & the wheel doesn't fall off but the brakes do judder. Not sure if this is a design feature (like a fuse) or a design weakness!
Pete
Pete