[DeTomaso] Camber locks? degrees of camber per rotation

jderyke at aol.com jderyke at aol.com
Mon Mar 5 15:40:35 EST 2018


Tiny changes in camber like tenths of a degree will get lost in the noise and depends on you pulling the stud further into the tapered hole. Not all cars will likely get the same amount of change. But if you convert to '68-'83 Chrysler-type screw-in upper ball joints from Howe or Coleman Racing (both dirt track specialists), their take-apart ball joints can be had with optional stud lengths. Sprint cars routinely tune their suspensions with different ball joint stud lengths- not for camber changes but to alter the front moment centers for improved cornering. They are also infinitely rebuildable, can be changed at the track because they screw into a receptical so are not pressed in, and are low friction.

All the info on converting a Pantera suspension to use those ball joints is in a POCA Newsletter article April 2008. Mine have been in our '72's suspension front & rear, upper & lower since then with no trouble. I used all upper Chrysler-type  aftermarket ball joints -NOT made by MOPAR.

The article was originally written due to the extreme cost of OEM Pantera ball joints at the time, but it turns out these popular Chrysler-type racing ball joints are also tune-able for pro racing. Nowadays, thanks to Steve Wilkinson repopping the stockers, the price for OEMs has dropped markedly and per the article,  the Chrysler conversion requires some precision machining to install in a Pantera.
J DeRyke


-----Original Message-----
From: Joseph F. Byrd, Jr. <byrdjf at embarqmail.com>
To: 'Ken Green' <kenn_green at yahoo.com>
Cc: 'List DeTomaso Forum' <detomaso at server.detomasolist.com>
Sent: Mon, Mar 5, 2018 11:03 am
Subject: Re: [DeTomaso] Camber locks? degrees of camber per rotation


Most times people could care less when I get out the slide rule, But since you ASKED.
I don't know the thread so for example I chose a 0.1" change
To my eye, it seems the amount of change for each camber or castor would result in their same change of angle.

Given I am not "automotive" experienced and my comprehension is waning, if I am in error, PLEASE critique. It won't hurt my feelings


-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of Ken Green via DeTomaso
Sent: Monday, March 05, 2018 11:50 AM
To: Chuck and Linda Huber; 'Larry Stock'; jderyke at aol.com; detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Camber locks? degrees of camber per rotation

Probably easy to figure out based on the separation of the ball joints and threads per inch, but has anyone already done the math as a sanity check?
Ken

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-------------- next part --------------
   Tiny changes in camber like tenths of a degree will get lost in the
   noise and depends on you pulling the stud further into the tapered
   hole. Not all cars will likely get the same amount of change. But if
   you convert to '68-'83 Chrysler-type screw-in upper ball joints from
   Howe or Coleman Racing (both dirt track specialists), their take-apart
   ball joints can be had with optional stud lengths. Sprint cars
   routinely tune their suspensions with different ball joint stud
   lengths- not for camber changes but to alter the front moment centers
   for improved cornering. They are also infinitely rebuildable, can be
   changed at the track because they screw into a receptical so are not
   pressed in, and are low friction.
   All the info on converting a Pantera suspension to use those ball
   joints is in a POCA Newsletter article April 2008. Mine have been in
   our '72's suspension front & rear, upper & lower since then with no
   trouble. I used all upper Chrysler-type  aftermarket ball joints -NOT
   made by MOPAR.
   The article was originally written due to the extreme cost of OEM
   Pantera ball joints at the time, but it turns out these popular
   Chrysler-type racing ball joints are also tune-able for pro racing.
   Nowadays, thanks to Steve Wilkinson repopping the stockers, the price
   for OEMs has dropped markedly and per the article,  the Chrysler
   conversion requires some precision machining to install in a Pantera.
   J DeRyke
   -----Original Message-----
   From: Joseph F. Byrd, Jr. <byrdjf at embarqmail.com>
   To: 'Ken Green' <kenn_green at yahoo.com>
   Cc: 'List DeTomaso Forum' <detomaso at server.detomasolist.com>
   Sent: Mon, Mar 5, 2018 11:03 am
   Subject: Re: [DeTomaso] Camber locks? degrees of camber per rotation
   Most times people could care less when I get out the slide rule, But
   since you ASKED.
   I don't know the thread so for example I chose a 0.1" change
   To my eye, it seems the amount of change for each camber or castor
   would result in their same change of angle.
   Given I am not "automotive" experienced and my comprehension is waning,
   if I am in error, PLEASE critique. It won't hurt my feelings
   -----Original Message-----
   From: DeTomaso [[1]mailto:detomaso-bounces at server.detomasolist.com] On
   Behalf Of Ken Green via DeTomaso
   Sent: Monday, March 05, 2018 11:50 AM
   To: Chuck and Linda Huber; 'Larry Stock'; [2]jderyke at aol.com;
   [3]detomaso at server.detomasolist.com
   Subject: Re: [DeTomaso] Camber locks? degrees of camber per rotation
   Probably easy to figure out based on the separation of the ball joints
   and threads per inch, but has anyone already done the math as a sanity
   check?
   Ken
   _______________________________________________
   Detomaso Email List is not managed by POCA
   Posted emails must not exceed 1.5 Megabytes
   DeTomaso mailing list
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   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   Members who post to this list grant license to the list to forward any
   message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.

References

   1. mailto:detomaso-bounces at server.detomasolist.com?
   2. mailto:jderyke at aol.com
   3. mailto:detomaso at server.detomasolist.com
   4. mailto:DeTomaso at server.detomasolist.com
   5. http://server.detomasolist.com/mailman/listinfo/detomaso


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