--===============7074748334828238740==
boundary="Apple-Mail=_56E5260D-6818-47BC-92AB-37D9ACFC5344"
--Apple-Mail=_56E5260D-6818-47BC-92AB-37D9ACFC5344
Content-Transfer-Encoding: quoted-printable
charset=utf-8
I can tell you what my GT6 has. What you run I=E2=80=99m sure depends =
to some extent on tires.
I run Toyo R888Rs - radials. They like negative camber. =20
Fronts - 2.6 degrees negative camber, 1/16=E2=80=9D toe in, castor 6 =
degrees. Stock is 4, +/- 1. I have to admit I have never tried to =
adjust this up or down. With more castor, I think the camber gets a =
little more negative with turn-in, which is probably good as it counters =
body roll on the outside wheel. However, now you=E2=80=99ve got me =
thinking, and I may dial it back to stock to see if I notice the =
difference.
Rears - 2.5 degrees negative camber, slight toe in to counter =
suspension flex.
Hoosier bias plies (like the TD, which comes in 13=E2=80=9D sizes) =
don=E2=80=99t like negative camber, so they are not interchangeable with =
these camber settings.
You can also adjust the castor by playing with the amount of shims front =
and rear on the lower a-arm, which will move the trunnion end of the =
A-arm front and rear. Of course, that effects the camber, iterative =
process. =20
I inherited my car with work done to reduce bump steer - mainly by =
bending the steering links down. Very little bump steer within the =
normal operating range.
Be curious to hear what settings you end up with, or others use.
Scott Janzen,
=E2=80=9968 GT6, but with inner and outer u-joints at the rear and =
spicer sliding halfshafts.
On Jul 2, 2021, at 5:32 AM, Enquiries Road & Track via Fot =
<fot@autox.team.net> wrote:
could anyone racing a GT6 (or even a Spitfire) please offer some comment =
on front alignment "settings". In particular, have you made engineering =
changes to increase the static caster?=20
The most obvious option is to change to the trunnionless vertical links =
used on various clubman type race cars ., eg Caterham or Birkin. I have =
a set of Birkin alloy uprights , but i'll have to make suitable =
wishbones .=20
I'm trying to recommission our Mk2 GT6 racer which we have not used for =
many years, and my memory was the "stock" front end was not good with =
"modern" slicks and particularly mid-corner indecision.=20
Any comments gladly accepted
thanks
Terry=20
Australia
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
http://autox.team.net/mailman/options/fot/sjanzen@me.com
--Apple-Mail=_56E5260D-6818-47BC-92AB-37D9ACFC5344
Content-Transfer-Encoding: quoted-printable
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><div =
dir=3D"auto" style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
line-break: after-white-space;" class=3D"">I can tell you what my GT6 =
has. What you run I=E2=80=99m sure depends to some extent on =
tires.<div class=3D"">I run Toyo R888Rs - radials. They like =
negative camber. </div><div class=3D""><br class=3D""></div><div =
class=3D"">Fronts - 2.6 degrees negative camber, 1/16=E2=80=9D toe in, =
castor 6 degrees. Stock is 4, +/- 1. I have to admit I have =
never tried to adjust this up or down. With more castor, I think =
the camber gets a little more negative with turn-in, which is probably =
good as it counters body roll on the outside wheel. However, now =
you=E2=80=99ve got me thinking, and I may dial it back to stock to see =
if I notice the difference.</div><div class=3D""><br class=3D""></div><div=
class=3D"">Rears - 2.5 degrees negative camber, slight toe in to =
counter suspension flex.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Hoosier bias plies (like the TD, which comes in 13=E2=80=9D =
sizes) don=E2=80=99t like negative camber, so they are not =
interchangeable with these camber settings.</div><div class=3D""><br =
class=3D""></div><div class=3D"">You can also adjust the castor by =
playing with the amount of shims front and rear on the lower a-arm, =
which will move the trunnion end of the A-arm front and rear. Of =
course, that effects the camber, iterative process. </div><div =
class=3D""><br class=3D""></div><div class=3D"">I inherited my car with =
work done to reduce bump steer - mainly by bending the steering links =
down. Very little bump steer within the normal operating =
range.</div><div class=3D""><br class=3D""></div><div class=3D"">Be =
curious to hear what settings you end up with, or others use.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Scott Janzen,</div><div =
class=3D"">=E2=80=9968 GT6, but with inner and outer u-joints at the =
rear and spicer sliding halfshafts.<br class=3D""><div><br class=3D""><div=
class=3D"">On Jul 2, 2021, at 5:32 AM, Enquiries Road & Track via =
Fot <<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div dir=3D"ltr" =
class=3D"">could anyone racing a GT6 (or even a Spitfire) please offer =
some comment on front alignment "settings". In particular, have you made =
engineering changes to increase the static caster? <div =
class=3D""><br class=3D""></div><div class=3D"">The most obvious option =
is to change to the trunnionless vertical links used on various clubman =
type race cars ., eg Caterham or Birkin. I have a set of Birkin alloy =
uprights , but i'll have to make suitable wishbones . <div =
class=3D""><br class=3D""></div><div class=3D"">I'm trying to =
recommission our Mk2 GT6 racer which we have not used for many years, =
and my memory was the "stock" front end was not good with "modern" =
slicks and particularly mid-corner indecision. </div><div =
class=3D""><br class=3D""></div><div class=3D"">Any comments gladly =
accepted</div><div class=3D""><br class=3D""></div><div =
class=3D"">thanks</div><div class=3D""><br class=3D""></div><div =
class=3D"">Terry </div><div class=3D"">Australia</div></div></div>
_______________________________________________<br class=3D""><a =
href=3D"mailto:fot@autox.team.net"; class=3D"">fot@autox.team.net</a><br =
class=3D""><br class=3D"">http://www.fot-racing.com<br class=3D""><br =
class=3D"">Donate: http://www.team.net/donate.html<br class=3D"">Archive: =
http://autox.team.net/archive http://www.team.net/pipermail/fot<br =
class=3D"">Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/sjanzen@me.com<br class=3D""><br=
class=3D""><br class=3D""></div></div><br =
class=3D""></div></div></body></html>=
--Apple-Mail=_56E5260D-6818-47BC-92AB-37D9ACFC5344--
--===============7074748334828238740==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
--===============7074748334828238740==--
|