[Fot] TR4 axle shafts

[Bill Dentinger]

I think that is a FANTASTIC  idea. Bill Dentinger

"Barr, Scott" <sbarr at McCarty-Law.com> wrote:

><< one of the main objectives of the rules makers and sanctioning bodies is to
>allow us to race safely >>
>
>Evidently, the German sanctioning bodies are not so open minded as that.
>Chris pointed out that their position is that modifying the car so that the
>wheel will not fly off, resulting in an upside down excursion into the gravel
>trap, will allow the driver to go faster (perhaps by installing stickier tires
>or using more curb) and gain an advantage over a driver whose car is
>maintained in the original less safe condition.
>
>It appears that the only thing we can do to help Chris in this one is to
>increase U.S. exports of personal injury attorneys to Germany. (Or help him
>find X19NiCrMo4 stock at a reasonable cost.)
>
>Scott B.
>
>
>
>-----Original Message-----
>From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] On Behalf
>Of fubog1
>Sent: Tuesday, January 21, 2014 5:10 PM
>To: tr4racing at googlemail.com; fot at autox.team.net
>Subject: Re: [Fot] TR4 axle shafts
>
>Just a few thoughts on the TR raxdiscussion, based on my observations over the
>years...
>Obviously the problems are largely dueto the nature of the design, a live
>axle, not really ideal forracing, and the components, again, not made for
>racing stresses.Since we have to keep the original design, going by the rules,
>thatcan't be changed.
>The axle shaft, taper & key issueshave been discussed.
>The other failure mode is that of thewheel hub, which can crack
>circumferentially at the inside corner ofthe wheel flange face and the drum
>locating boss, down at about a 45degree angle through to the inside corner of
>the seal journal andinside of the hub. These inside corners don't have good
>radii and arepretty rough, and the little weep hole is another stress raiser,
>andthe cross-section isn't that impressive to begin with. The
>flange/hubobviously has a lot of lateral load on it from cornering forces
>butalso the heavy load that is applied when the hub is removed forinspection.
>I suspect that these cracks are sometimes initiallycaused during the hub
>removal, since the factory tool pulls on theflange and puts all of that load
>through it to the center of the hub.A good crack check will show it but it
>just adds to the potential forfailure of the stock components.
>The b
Southwickb
 conversion retainsthe original (poor) design, live vs
>floating axles, and eliminatesall of the known failure points. It offers no
>performance advantageat all. Since one of the main objectives of the rules
>makers andsanctioning bodies is to allow us to race safely, I would think
>thatthey would encourage the conversion...
>Glen
>
>
>
>
>
>
>
>-----Original Message-----
>From: MadMarx <tr4racing at googlemail.com>
>To: fot <fot at autox.team.net>
>Sent: Mon, Jan 20, 2014 5:12 pm
>Subject: Re: [Fot] TR4 axle shafts
>
>
>Ken,
>
>I had this talk with the tech people of the ASN.
>Answer:
>"A axle upgrade in this way is an advantage in performance and not allowed.
>You can run harder on curbs than the car without upgrade and might gain speed
>from it. Not granted."
>Then I came up with safety issues.
>Answer:
>"You choose your race car. If your car is not suitable for racing, it's your
>problem. Where should it end? One car has small brakes, other ones have soft
>wishbones and so on. You have to run it as it is."
>
>So the only thing I can do is to change the shaft.
>
>Cheers
>Chris
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