[DeTomaso] Alignment for high speed
Charles Engles
cengles at cox.net
Sat Aug 15 11:57:12 EDT 2015
Dear Scientific Julian,
Ah, the answer is that with the combination I have
listed add in the wheel position as you turn into a driveway with a modest
incline even at modest speed. Those things then proceed to have the tire
kiss the outer fender lip in an unpleasant way. Given a world without
driveways then there is about a quarter of an inch of clearance in the worst
case.
Warmest regards, Chuck Engles
From: Julian Kift [mailto:julian_kift at hotmail.com]
Sent: Friday, August 14, 2015 11:58 PM
To: cengles at cox.net; boyd411 at gmail.com
Cc: detomaso at poca.com; teampantera at yahoo.com
Subject: RE: [DeTomaso] Alignment for high speed
I believe the mod that Johnny does and which I also executed moves the
balljoint 3/4 of an inch, providing about 7 degrees of caster; eleven is
probably excessive IMO, especially ona narrow body car. I executed on my GT5
to try and reduce the tendency for tramlining of the 275 wide tires.
I'm also intigued why Charles experienced tire rub in the fender upper front
as the addition of positive caster rotates the wheel rearward over the
center pivot point.
Julian
From: cengles at cox.net
To: boyd411 at gmail.com
Date: Thu, 13 Aug 2015 21:31:16 -0500
Subject: Re: [DeTomaso] Alignment for high speed
CC: detomaso at poca.com; teampantera at yahoo.com
Dear Boyd,
Eleven degrees! Impressive. Do be aware of my sad
experience with five degrees of positive caster plus stock rolled fender
lips plus nine inch wide by seventeen inch wheels with 245 mm wide
tires----at full lock it tends to permit the tire to kiss the front upper
outer fender lip. Following that is a notable blemish and a trip to the
paint and body man for a repair to fix the damage and a recontouring of the
fender flair to prevent future "kisses". The advantages of big positive
caster still outweigh these minor disadvantages.
Positive Caster Ambassador, Chuck
Engles
From: Boyd Casey [mailto:boyd411 at gmail.com]
Sent: Thursday, August 13, 2015 7:39 PM
To: Charles Engles
Cc: mark skwarek; detomaso at poca.com; Mad Dog Antenucci
Subject: Re: [DeTomaso] Alignment for high speed
I sent my front upper A - arms and had them modified in a manner similar to
pat Micals. I used Johnny woods to do the work. His modification is supposed
to obtain around 11 degrees of caster.
Boyd
On Tue, Aug 11, 2015 at 10:56 AM, <cengles at cox.net> wrote:
Dear Mark,
"6.5 to 7 degrees of caster"......Well! I certainly
think that you've just about nailed that issue! Not much more to add
except the puny civilian alignment specs that I have may be of little
use at the speeds you are looking at.
Warmest regards, Chuck Engles
On Tue, Aug 11, 2015 at 8:48 AM, mark skwarek wrote:
I am using Delrin bushings and have 6.5 to 7 degrees of castor.
Mark
On Tuesday, August 11, 2015 9:26 AM, "cengles at cox.net"
<cengles at cox.net> wrote:
Dear Mark,
Off the top of my head, the most positive caster that
you can get is important. I *think* it is paramount and the other
parameters and secondary. I have my alignments specs at home which I
can send you this evening.
Warmest regards, Chuck Engles
On Mon, Aug 10, 2015 at 11:36 PM, mark skwarek via DeTomaso wrote:
> Looking for alignment specs that work best for 145 to 165 mph
driving.
> Mark
>
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-------------- next part --------------
Dear Scientific Julian,
Ah, the answer is that with the combination I
have listed add in the wheel position as you turn into a driveway with
a modest incline even at modest speed. Those things then proceed to
have the tire kiss the outer fender lip in an unpleasant way. Given
a world without driveways then there is about a quarter of an inch of
clearance in the worst case.
Warmest regards, Chuck
Engles
From: Julian Kift [mailto:julian_kift at hotmail.com]
Sent: Friday, August 14, 2015 11:58 PM
To: cengles at cox.net; boyd411 at gmail.com
Cc: detomaso at poca.com; teampantera at yahoo.com
Subject: RE: [DeTomaso] Alignment for high speed
I believe the mod that Johnny does and which I also executed moves the
balljoint 3/4 of an inch, providing about 7 degrees of caster; eleven
is probably excessive IMO, especially ona narrow body car. I executed
on my GT5 to try and reduce the tendency for tramlining of the 275 wide
tires.
I'm also intigued why Charles experienced tire rub in the fender upper
front as the addition of positive caster rotates the wheel rearward
over the center pivot point.
Julian
From: [1]cengles at cox.net
To: [2]boyd411 at gmail.com
Date: Thu, 13 Aug 2015 21:31:16 -0500
Subject: Re: [DeTomaso] Alignment for high speed
CC: [3]detomaso at poca.com; [4]teampantera at yahoo.com
Dear Boyd,
Eleven degrees! Impressive. Do be aware of my sad experienc
e with five degrees of positive caster plus stock rolled fender lips plus nine i
nch wide by seventeen inch wheels with 245 mm wide tires----at full lock it tend
s to permit the tire to kiss the front upper outer fender lip. Following that
is a notable blemish and a trip to the paint and body man for a repair to fix th
e damage and a recontouring of the fender flair to prevent future "kisses".
The advantages of big positive caster still outweigh these minor disadvantages.
Positive Caster Ambassador, Chuck Engles
From: Boyd Casey [[5]mailto:boyd411 at gmail.com]
Sent: Thursday, August 13, 2015 7:39 PM
To: Charles Engles
Cc: mark skwarek; [6]detomaso at poca.com; Mad Dog Antenucci
Subject: Re: [DeTomaso] Alignment for high speed
I sent my front upper A - arms and had them modified in a manner similar to pat
Micals. I used Johnny woods to do the work. His modification is supposed to obta
in around 11 degrees of caster.
Boyd
On Tue, Aug 11, 2015 at 10:56 AM, <[7]cengles at cox.net> wrote:
Dear Mark,
"6.5 to 7 degrees of caster"......Well! I certainly
think that you've just about nailed that issue! Not much more to add
except the puny civilian alignment specs that I have may be of little
use at the speeds you are looking at.
Warmest regards, Chuck Engles
On Tue, Aug 11, 2015 at 8:48 AM, mark skwarek wrote:
I am using Delrin bushings and have 6.5 to 7 degrees of castor.
Mark
On Tuesday, August 11, 2015 9:26 AM, "[8]cengles at cox.net"
<[9]cengles at cox.net> wrote:
Dear Mark,
Off the top of my head, the most positive caster that
you can get is important. I *think* it is paramount and the other
parameters and secondary. I have my alignments specs at home which I
can send you this evening.
Warmest regards, Chuck Engles
On Mon, Aug 10, 2015 at 11:36 PM, mark skwarek via DeTomaso wrote:
> Looking for alignment specs that work best for 145 to 165 mph
driving.
> Mark
>
> ------------------------------
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
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> use the links above.
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