[Fot] LSD

[John Hasty]

Hey Chris......Those things are called Traction Bars here in NASCAR country &
they are fully adjustable in a 5 second pit stop.  Try a few of their web
sites ......

Sent from my iPhone

On Jun 2, 2012, at 3:15 PM, "MadMarx" <tr4racing at googlemail.com> wrote:

> I tried to follow this design but I connected the rod with the spring mount
> which gives an angle.
> The angle has the advantage of an anti dive but it seems to stiffen up the
> suspension and acting like a sway bar.
> Too unpredictable.
>
https://lh3.googleusercontent.com/-KSmOrPC6I2s/T8plfWxpLFI/AAAAAAAABXs/VDma4
> UruAsA/s761/CCI02062012_0000.jpg
>
>
>
> Cheers
> Chris
>
> -----Urspr|ngliche Nachricht-----
> Von: J.C. Hassall [mailto:jhassall at blacksburg.net]
> Gesendet: Samstag, 2. Juni 2012 20:48
> An: MadMarx
> Cc: fot at autox.team.net
> Betreff: Re: [Fot] LSD
>
> On 6/2/2012 2:04 PM, MadMarx wrote:
>> I used an idea from a engineering book but I suppose that the angle of the
>> rod is too large.
>> I drove into a McDonald parking when the left rod snapped.
>> With one working rod the on-off-throttle steer was back again...greatly
> more
>> than it was but the car felt much better.
>> So I'm going back to the stock situation and remove the rods.
>>
>> Cheers
>> Chris
>> And thank you all for input. Learned a lot.
>>
>>
>>
> Chris, as I recall from my old DP car with a Detroit Locker
> differential; the car would squat to one side or the other under
> acceleration/deceleration; after I installed a set of torque rods the
> problem went away.  It is important to have the axis of the rod parallel
> to the frame when the car is at half suspension travel.  That should
> minimize surprises as the suspension hits the limits, as Duncan said
> below.  By the way, it appeared from your video that the rods were
> welded to the top of the axle.  Mine were mounted to a plate under the
> spring pad; the front of the rods mounted to a bracket I welded to the
> frame.
>
> I have some pictures of a Traction Master rod like I had installed which
> I can send if you want them.
>
> Gluck auf!
>
> jim
>> -----Urspr|ngliche Nachricht-----
>> Von: Duncan Charlton [mailto:duncan.charlton54 at gmail.com]
>> Gesendet: Samstag, 2. Juni 2012 19:38
>> An: MadMarx
>> Betreff: Re: [Fot] LSD
>>
>> Chris,
>>
>> Does the rod's arc of movement exactly match that of the axle?  That is,
>> does the front mount of the reaction rod use the same axis of rotation as
>> the front eye of the spring?  If not, it's trying to twist the axle
> relative
>> to what the spring is doing, creating resistance to movement, adding roll
>> stiffness.
>>
>> Another approach might be to clamp together the front leaves of the spring
>> but leave the rears alone.  One other solution I've seen (on a Sunbeam
>> Tiger) was to wrap the front end of the second leaf around the spring eye
>> bushing (inside the main leaf eye, and using a smaller-diameter bushing),
>> effectively doubling the stiffness of the front half of the spring.
>>
>> Duncan
>> (Texas)
>>
>> On Jun 2, 2012, at 12:08 PM, MadMarx wrote:
>>
>>
>>> Hi Guys,
>>>
>>> I installed rods to the axle.
>>>
>>> http://youtu.be/QPCCN96x8_U
>>>
>>>
>>> The leaf spring is now calmated but the car does oversteer badly.
>>> Seems to stiffen up the suspension now.
>>> I'm not sure if I should maintain that idea.
>>>
>>> Cheers
>>> Chris
>>
>
>
> --
> Jim Hassall
> Blacksburg VA
> '63 TR4 in autox preparation
> 99% finished, 90% to go
> _______________________________________________
> fot at autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe: http://autox.team.net/mailman/options/fot/jhhasty@gdhs.com