[TPR] Pantera Alignment
Asa Jay Laughton
asajay at asajay.com
Mon Sep 23 19:31:49 PDT 2024
Found them.
2021 Alignment result:
2022 Alignment result:
Asa Jay Laughton - W7TSC, MSgt, USAFR, Retired
Spokane County ARES-RACES-ACS EC/RO
******************************
https://w7tsc.org
https://www.teampanteraracing.com
On 9/23/2024 16:59, David Carpenter via TPR wrote:
> Larry's thoughts on settings: absolutely correct.
> 5-7 degrees caster at speed, will react very smooth.
> Same caster @ 20-50 mph can be a handful. (I chose the speed side, &
> loved w the minor downside at slow speeds.
>
> Yes: toe should be Very Close to Zero.
> Like Larry said: even minor Toe Out makes the steering Hunt!! (You
> can never ever let go of wheel)
>
> Tire size change:
> The alignment was very likely done with the OLD WHEELS!!!
>
> The alignment specs might been right.
> Different wheels may have changed it all!!!
>
> Alignment can be Checked Only:
> Compare print out from when it was done before.
>
> If 'A' arms adjusted /checked as he suggests: alignment needs to be
> done AFTER any 'A' arm changes....if you go that route.
>
> Without a print out of alignment specs: without a ride along: it's
> dang hard to speculate from afar!!
>
> I've even seen air pressure & tread designs be the culprit!!
>
> Not that the tread is wrong: but it could be wrong for a certain road
> condition.
> Or someone had directional tires.....with Half the arrows wrong!!!!!
> (I was SURE I HAD SEEN IT ALL.....TIL THEN!!!)
>
>
> /"I am a part of all that I have met!"/
> Alfred Lord Tennyson
> ------------------------------------------------------------------------
> *From:* TPR <tpr-bounces at teampanteraracing.com> on behalf of Larry
> Stock via TPR <tpr at teampanteraracing.com>
> *Sent:* Monday, September 23, 2024 3:42:05 PM
> *To:* Mad Dog Antenucci <teampantera at yahoo.com>; Owen Lee Green
> <oneeyez4263 at gmail.com>
> *Cc:* Team Racing <tpr at teampanteraracing.com>; Jim Wallace
> <j.wallace at boston-group.com>; Patrick Mical <pmical at patsauto.com>
> *Subject:* Re: [TPR] Pantera Alignment
>
> Just give me where you are at and I can advise where to go with it.
>
> Larry
>
> *From: *Mad Dog Antenucci <teampantera at yahoo.com>
> *Date: *Monday, September 23, 2024 at 2:01 PM
> *To: *Owen Lee Green <oneeyez4263 at gmail.com>, Larry Stock
> <larrys at panteraparts.com>
> *Cc: *Team Racing <tpr at teampanteraracing.com>, Jim Wallace
> <j.wallace at boston-group.com>, Patrick Mical <pmical at patsauto.com>
> *Subject: *Re: [TPR] Pantera Alignment
>
> Excellent feedback....thank you Larry....think we are hitting on the
> real issue which is alignment settings. What I noticed with the added
> 6 or 7 degrees of caster was the Pantera LOVED the sweeper turns at
> speed like it did the long straight-aways but it did NOT like the long
> straight aways....so clearly this is alignment settings.
>
> On Monday, September 23, 2024 at 01:42:41 PM PDT, Larry Stock
> <larrys at panteraparts.com> wrote:
>
> I generally set up with spring rates in the 400 pound range +/-50
> lbs., with rear springs 25 pounds (+/-25 pounds) more than the front
> springs.
>
> A-Arms need to be adjusted flat and parallel with the road surface
> front and rear
>
> TOE-IN @ 1/16” on each corner making .125” total front and rear. NOTE
> any rear toe out is loose and squirrely, Front toe out wants to
> initiate turns quickly and dart
>
> CAMBER with 15” tires negative ½ degree +/-1/4 degree on all 4 corners
>
> CAMBER with 17”-18” tires negative 0-1/4 degree on all 4 corners, with
> 37PSI Front, 35PSI rear tire pressure
>
> CASTER MAX stock is 2-2-1/2 degrees, Pantera’s wants more with 17”+
> tires. I get 4-4-1/2 degrees with offset bushings and shaved upper
> Ball joints. Modified or Aluminum A-Arms should give you up to 8
> degrees, I’d try 6 degrees and make sure the steering wheel doesn’t
> want to cut your hands off at the wrist after making a turn. More
> caster will make the Pantera more stable at speed, too much will be a
> handful when turning.
>
> Larry Stock
>
>
> Pantera Parts Connection LC
> 550 Mallory Way
> Carson City NV 89701
>
>
> www.PanteraParts.com
> PH 775-283-4411
> Fax 775-283-4410
> Cell 1-800-DeTomaso 800-338-6627
>
> *From: *TPR <tpr-bounces at teampanteraracing.com> on behalf of Owen Lee
> Green via TPR <tpr at teampanteraracing.com>
> *Reply-To: *Owen Lee Green <oneeyez4263 at gmail.com>
> *Date: *Monday, September 23, 2024 at 12:41 PM
> *To: *Mad Dog Antenucci <teampantera at yahoo.com>
> *Cc: *Team Racing <tpr at teampanteraracing.com>, Jim Wallace
> <j.wallace at boston-group.com>, Patrick Mical <pmical at patsauto.com>
> *Subject: *Re: [TPR] Pantera Alignment
>
> Slightly softer spring rate in the front might help. Was the front
> feeling like it was bucking at speed? Eg bouncing hard but aero
> downforce keeping the nose down.
>
> On Mon, Sep 23, 2024, 12:36 PM Mad Dog Antenucci via TPR
> <tpr at teampanteraracing.com> wrote:
>
> I am coming out of my latest COVID Fog but recall Mark and I and
> some of you had discussions on while his Z06 this year and my C8
> last year handling was no better then how well our Pantera's
> alignment was set up. Except my Pantera in 2022 and again this
> year (2024) just did not track as well as it did in 2021 with 17"
> front tires.
>
> Bare with me as I know some of you will have different views here
> but what changed on my Pantera. One was going to 18" front wheels
> and the other big change was adding the extended A arms that Asa
> put on from Johnny woods.
>
> Asa suggested the road surface may have been the problem but Mark
> and I have seen just bad road conditions in previous years at
> 140-160+ speeds. So I am leaning now on suspension settings
> first....and it was suggested adding toe in or out may be the problem.
>
> When I got the Pantera back from As after he had a local alignment
> shop reset suspension the Pantera felt fine at speeds up to a 100
> or so but unfortunately the only thing that matters is real road
> conditions at 150+. I only average 134 this year and not sure I
> would have wanted to handle much more then 140
> comfortably.....that sweet spot for me....a 140-150 Average....but
> again something is off.
>
> Others suggested the wheels might have been off but they were so
> well balanced from the factory only one wheel needed a corrected
> weight. Much better then I ever saw with other vendors wheels. So
> let me know your thoughts but what I hope is that Jim and Pat will
> come up with what settings they are using or others are using on
> Pantera's running endurance speeds.
>
> Dawg, with flame suit on
>
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