[DeTomaso] Tire question
Mike Drew
mikeldrew at aol.com
Mon Feb 28 21:29:57 EST 2022
Chris,
You ‘need’ ZR rated tires? That’s a ridiculous assertion.
First of all, you are driving your car on the STREET so you want street tires. Not race tires. Race tires come with loads of compromises, chief among them being severe unsuitability for driving in wet weather conditions. You live in Seattle!
Secondly, ZR-rated tires are certified for 2 hours of continuous running at speeds above 149 mph. Do you truly believe you will be driving like that?
ZR tires can come with either W (168 mph) or Y (168 mph) speed ratings. So strictly speaking, there is no Z speed rating. ZR just means ‘fast radial’ and the speed rating is either W or Y.
BFG radial T/A tires are only S-rated (112 mph). Does that mean they will explode at 113 mph? Of course not. You can easily exceed the speed rating with perfect safety, in short durations of a few minutes at a time.
If you think you will be running for 30-40 minutes straight above 112 mph you may want to consider different options. However for the type of use I think your car will see, if you stick to the 15-inch wheels, you would probably be best served with the BFGs in appropriate sizes.
Good luck!
Mike
Sent from my iPad
> On Feb 28, 2022, at 17:00, Christopher Kimball <chrisvkimball at msn.com> wrote:
>
> Thanks for the info--I don't use my car on the track, but I have been
> known to drive it thousands of miles across the country to Fun Rallys,
> so I need tires that are Z rated since I might hypothetically drive
> rapidly.
>
> Aren't Hoosiers lower-speed tires?
>
> Sincerely,
>
> Chris
> __________________________________________________________________
>
> From: Steve Lisa <stevelisa at patentit.com>
> Sent: Monday, February 28, 2022 4:41 PM
> To: Christopher Kimball <ChrisVKimball at msn.com>
> Cc: Jeff Detrich <jjdetrich at gmail.com>; Julian Kift
> <julian_kift at hotmail.com>; Pantera Owners Club of America
> <detomaso at server.detomasolist.com>
> Subject: Re: [DeTomaso] Tire question
>
> I use Hoosier R7's. 225/50 in front and 275/50 in rear. They work
> great for racing and so far have no complaints at all and are turning
> very competitive lap times.
> Presently, you won't be able to buy Avon's due to supply issues ...at
> least we can't. Roger Krause says they hard to get and he is only
> supplying his best customers.
> The R7's are much cheaper, last forever with little lap time def, and
> are easy to get.
> Anyway, that's what we use.
> On Mon, Feb 28, 2022, 5:03 PM Christopher Kimball
> <[1]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 <[2]jjdetrich at gmail.com>
> Sent: Saturday, February 26, 2022 11:26 AM
> To: Julian Kift <[3]julian_kift at hotmail.com>
> Cc: Christopher Kimball <[4]chrisvkimball at msn.com>; Pantera
> Owners Club of
> America <[5]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
> <[1][6]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
> <[2][7]detomaso-bounces at server.detomasolist.com> on
> behalf of
> Christopher Kimball <[3][8]chrisvkimball at msn.com>
> Sent: Saturday, February 26, 2022 10:04 AM
> To: Pantera Owners Club of America
> <[4][9]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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