[DeTomaso] Tire question
jderyke at aol.com
jderyke at aol.com
Mon Feb 28 21:26:11 EST 2022
The 245 fits an 8" Campy wheel better than a 7" and also corrects most of the scrub-radius mismatch. A 215 or a 225-50 is stretched slightly on an 8" but fits a 7". From my experience, a 245-50 on an 8" may touch here and there at full lock, with all possible shock spacers gone and the car set slightly lower in front than stock. The amount of caster you run also influences since extra caster pulls the whole suspension- with the wheel & tire- backwards.
On my '72 L, a pair of 245s touched the left front cowl drain pipe on the firewall, the extreme edge of the wiper motor shield and the fwd lower edge of the right wheel opening. Nothing serious- 5 minutes with a ball peen hammer fixed all the contact spots. IMHO a 245 in 15, 16, 17 or 18" size is the widest possible tire that fits in front without far more hammer work or flares.
-----Original Message-----
From: Christopher Kimball <ChrisVKimball at msn.com>
To: Julian Kift <julian_kift at hotmail.com>; Jeff Detrich <jjdetrich at gmail.com>
Cc: Pantera Owners Club of America <detomaso at server.detomasolist.com>
Sent: Mon, Feb 28, 2022 5:01 pm
Subject: Re: [DeTomaso] Tire question
So it sounds as if the 245 would be slightly lower profile, which I
like, but would it be too wide to turn sharply without scraping?
__________________________________________________________________
From: Julian Kift <julian_kift at hotmail.com>
Sent: Monday, February 28, 2022 4:53 PM
To: Jeff Detrich <jjdetrich at gmail.com>; Christopher Kimball
<ChrisVKimball at msn.com>
Cc: Pantera Owners Club of America <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Tire question
More specifically a 245/50 tire is 245*50% = 122.5mm tire wall height
or 4.8" therefore 15 + 2x4.8 = 24.65" total dia.
Whereas 215/60 = 129mm tire wall height or 5.08" therefore 15 = 2x5.08
= 25.2" total dia.
Julian
__________________________________________________________________
From: Jeff Detrich <jjdetrich at gmail.com>
Sent: Monday, February 28, 2022 4:40 PM
To: Christopher Kimball <ChrisVKimball at msn.com>
Cc: Julian Kift <julian_kift at hotmail.com>; Pantera Owners Club of
America <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Tire question
Chris, these are not very intuitive. Of the numbers, the 60 and 50 are
more significant. They are the aspect ratio, height vs width. The 215
and 245 are the section width. So the 60 number is the important
number.
Jeff
[1]https://www.tirerack.com/tires/tiretech/techpage.jsp?gclid=CjwKCAiAg
vKQBhBbEiwAaPQw3HBthKm5yIVo6aQU7Uiy8HWl2NUheMUMI40Zwn8YEmXqJ-70qin6KRoC
MzMQAvD_BwE&techid=7&ef_id=CjwKCAiAgvKQBhBbEiwAaPQw3HBthKm5yIVo6aQU7Uiy
8HWl2NUheMUMI40Zwn8YEmXqJ-70qin6KRoCMzMQAvD_BwE:G:s&s_kwcid=AL!3756!3!3
51458717475!e!!g!!aspect%20ratio%20tire&gclsrc=aw.ds
On Mon, Feb 28, 2022 at 6:03 PM Christopher Kimball
<[2]ChrisVKimball at msn.com> wrote:
Hi Jeff,
Roger Kraus recommended the same setup you describe with the 215 60 on
the front. You said you went with a 245 50 on the front, but isn't
that taller than a 215 60?
Thanks,
Chris
__________________________________________________________________
From: Jeff Detrich <[3]jjdetrich at gmail.com>
Sent: Saturday, February 26, 2022 11:26 AM
To: Julian Kift <[4]julian_kift at hotmail.com>
Cc: Christopher Kimball <[5]chrisvkimball at msn.com>; Pantera Owners Club
of America <[6]detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Tire question
When I upgraded, there were no matching speed rated tires except
Avons.
BACK: Avon 15" CR6ZZ are 295/50 are high speed rated - R IIRC. Look
and handle great.
FRONT: Avon 15" CR6ZZ 215/60 same as above. I mounted them but they
look somewhat out of proportion to my eye. /60 is too thin and too
tall. I switched to a Michelin speed rated tire 245/50R15 - sorry,
don't remember the model, car is in the shop. Car looks balanced and is
balanced on the track.
Pirelli Cinturato Classics are new to me. Would like hear more
details.
Good to hear car coming along.
Jeff
6559
On Sat, Feb 26, 2022 at 12:34 PM Julian Kift
<[7]julian_kift at hotmail.com> wrote:
I think the 15" tires of choice are the Avon CR6ZZ or a Pirelli
Cinturato P7 classic, but even the Pirelli 345/35/15 replacement
now
has a VR designation with conflicting information on speed rating
quoted as Z or Y.
Julian
__________________________________________________________________
From: DeTomaso <[8]detomaso-bounces at server.detomasolist.com> on
behalf of
Christopher Kimball <[9]chrisvkimball at msn.com>
Sent: Saturday, February 26, 2022 10:04 AM
To: Pantera Owners Club of America
<[10]detomaso at server.detomasolist.com>
Subject: [DeTomaso] Tire question
Hi everyone,
I haven't been contributing much to the Pantera community for a
long
while because my car has been undergoing an extensive
restoration.
Thanks for understanding; once I get my car back I'll return once
again
to the realm of the Pantera faithful.
At this point the light at the end of the tunnel is shining
brightly,
and it appears my car should be done very soon.
However, the tech who has been working on it told me when he took
it
for a test drive recently the tires were so hard it was almost
dangerous to corner!
I know there have been a lot of tire discussions over the years,
and
now I'm hoping someone will remember the solution to my tire
question,
which I'm sure has been dealt with already: Is it possible for
me to
find new tires which are Z, W, or Y rated in the sizes 225 50 15
(front), and either 295 50 15 or 285 50 15 (rear)?
I'm not overly concerned with the price if I can get the sizes I
need,
but obviously if I can find something reasonably priced, that
would be
good.
Thanks, I appreciate your help!
Sincerely,
Chris
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2. mailto:ChrisVKimball at msn.com
3. mailto:jjdetrich at gmail.com
4. mailto:julian_kift at hotmail.com
5. mailto:chrisvkimball at msn.com
6. mailto:detomaso at server.detomasolist.com
7. mailto:julian_kift at hotmail.com
8. mailto:detomaso-bounces at server.detomasolist.com
9. mailto:chrisvkimball at msn.com
10. mailto:detomaso at server.detomasolist.com
11. mailto:DeTomaso at server.detomasolist.com
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-------------- next part --------------
The 245 fits an 8" Campy wheel better than a 7" and also corrects most
of the scrub-radius mismatch. A 215 or a 225-50 is stretched slightly
on an 8" but fits a 7". From my experience, a 245-50 on an 8" may touch
here and there at full lock, with all possible shock spacers gone and
the car set slightly lower in front than stock. The amount of caster
you run also influences since extra caster pulls the whole suspension-
with the wheel & tire- backwards.
On my '72 L, a pair of 245s touched the left front cowl drain pipe on
the firewall, the extreme edge of the wiper motor shield and the fwd
lower edge of the right wheel opening. Nothing serious- 5 minutes with
a ball peen hammer fixed all the contact spots. IMHO a 245 in 15, 16,
17 or 18" size is the widest possible tire that fits in front without
far more hammer work or flares.
-----Original Message-----
From: Christopher Kimball <ChrisVKimball at msn.com>
To: Julian Kift <julian_kift at hotmail.com>; Jeff Detrich
<jjdetrich at gmail.com>
Cc: Pantera Owners Club of America <detomaso at server.detomasolist.com>
Sent: Mon, Feb 28, 2022 5:01 pm
Subject: Re: [DeTomaso] Tire question
So it sounds as if the 245 would be slightly lower profile, which I
like, but would it be too wide to turn sharply without scraping?
__________________________________________________________________
From: Julian Kift <[1]julian_kift at hotmail.com>
Sent: Monday, February 28, 2022 4:53 PM
To: Jeff Detrich <[2]jjdetrich at gmail.com>; Christopher Kimball
<[3]ChrisVKimball at msn.com>
Cc: Pantera Owners Club of America
<[4]detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Tire question
More specifically a 245/50 tire is 245*50% = 122.5mm tire wall height
or 4.8" therefore 15 + 2x4.8 = 24.65" total dia.
Whereas 215/60 = 129mm tire wall height or 5.08" therefore 15 =
2x5.08
= 25.2" total dia.
Julian
__________________________________________________________________
From: Jeff Detrich <[5]jjdetrich at gmail.com>
Sent: Monday, February 28, 2022 4:40 PM
To: Christopher Kimball <[6]ChrisVKimball at msn.com>
Cc: Julian Kift <[7]julian_kift at hotmail.com>; Pantera Owners Club of
America <[8]detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Tire question
Chris, these are not very intuitive. Of the numbers, the 60 and 50
are
more significant. They are the aspect ratio, height vs width. The 215
and 245 are the section width. So the 60 number is the important
number.
Jeff
[1][9]https://www.tirerack.com/tires/tiretech/techpage.jsp?gclid=CjwKCA
iAg
vKQBhBbEiwAaPQw3HBthKm5yIVo6aQU7Uiy8HWl2NUheMUMI40Zwn8YEmXqJ-70qin6KRoC
MzMQAvD_BwE&techid=7&ef_id=CjwKCAiAgvKQBhBbEiwAaPQw3HBthKm5yIVo6aQU7Uiy
8HWl2NUheMUMI40Zwn8YEmXqJ-70qin6KRoCMzMQAvD_BwE:G:s&s_kwcid=AL!3756!3!3
51458717475!e!!g!!aspect%20ratio%20tire&gclsrc=aw.ds
On Mon, Feb 28, 2022 at 6:03 PM Christopher Kimball
<[2][10]ChrisVKimball at msn.com> wrote:
Hi Jeff,
Roger Kraus recommended the same setup you describe with the 215 60
on
the front. You said you went with a 245 50 on the front, but isn't
that taller than a 215 60?
Thanks,
Chris
__________________________________________________________________
From: Jeff Detrich <[3][11]jjdetrich at gmail.com>
Sent: Saturday, February 26, 2022 11:26 AM
To: Julian Kift <[4][12]julian_kift at hotmail.com>
Cc: Christopher Kimball <[5][13]chrisvkimball at msn.com>; Pantera
Owners Club
of America <[6][14]detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Tire question
When I upgraded, there were no matching speed rated tires except
Avons.
BACK: Avon 15" CR6ZZ are 295/50 are high speed rated - R IIRC. Look
and handle great.
FRONT: Avon 15" CR6ZZ 215/60 same as above. I mounted them but they
look somewhat out of proportion to my eye. /60 is too thin and too
tall. I switched to a Michelin speed rated tire 245/50R15 - sorry,
don't remember the model, car is in the shop. Car looks balanced and
is
balanced on the track.
Pirelli Cinturato Classics are new to me. Would like hear more
details.
Good to hear car coming along.
Jeff
6559
On Sat, Feb 26, 2022 at 12:34 PM Julian Kift
<[7][15]julian_kift at hotmail.com> wrote:
I think the 15" tires of choice are the Avon CR6ZZ or a Pirelli
Cinturato P7 classic, but even the Pirelli 345/35/15
replacement
now
has a VR designation with conflicting information on speed
rating
quoted as Z or Y.
Julian
__________________________________________________________________
From: DeTomaso
<[8][16]detomaso-bounces at server.detomasolist.com> on
behalf of
Christopher Kimball <[9][17]chrisvkimball at msn.com>
Sent: Saturday, February 26, 2022 10:04 AM
To: Pantera Owners Club of America
<[10][18]detomaso at server.detomasolist.com>
Subject: [DeTomaso] Tire question
Hi everyone,
I haven't been contributing much to the Pantera community for a
long
while because my car has been undergoing an extensive
restoration.
Thanks for understanding; once I get my car back I'll return
once
again
to the realm of the Pantera faithful.
At this point the light at the end of the tunnel is shining
brightly,
and it appears my car should be done very soon.
However, the tech who has been working on it told me when he
took
it
for a test drive recently the tires were so hard it was almost
dangerous to corner!
I know there have been a lot of tire discussions over the
years,
and
now I'm hoping someone will remember the solution to my tire
question,
which I'm sure has been dealt with already: Is it possible for
me to
find new tires which are Z, W, or Y rated in the sizes 225 50
15
(front), and either 295 50 15 or 285 50 15 (rear)?
I'm not overly concerned with the price if I can get the sizes
I
need,
but obviously if I can find something reasonably priced, that
would be
good.
Thanks, I appreciate your help!
Sincerely,
Chris
_______________________________________________
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9. https://www.tirerack.com/tires/tiretech/techpage.jsp?gclid=CjwKCAiAg
10. mailto:ChrisVKimball at msn.com
11. mailto:jjdetrich at gmail.com
12. mailto:julian_kift at hotmail.com
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