[Fot] Hoosier radial slicks

[Mike Harmuth]

Chris, I know there might be some problems for you to contact Hoosier in
the US but I've spoken to their support engineers a couple of times. They
had good information for setup and starting pressures/ending temps. The
contact link below also has email info

Oops, never mind the time difference, I see they have a German support
office in Hanover as well.

https://www.hoosiertire.com/contact/

mike h

On Sun, Jul 9, 2023 at 5:34 PM Chris Marx via Fot <fot at autox.team.net>
wrote:

> I need to add…fastest lap with low tire pressure was in lap 2.
>
> Means….going lower to move the fastest lap to lap 10.
>
>
>
> Cheers
>
> Chris
>
>
>
>
>
> *From:* tr4racing at googlemail.com <tr4racing at googlemail.com>
> *Sent:* Sunday, July 9, 2023 10:40 PM
> *To:* 'Ken Knight' <kknight at klaenv.com>; 'Christian Marx' <
> tr4racing at googlemail.com>; 'fot at autox. team. net' <fot at autox.team.net>
> *Subject:* RE: [Fot] Hoosier radial slicks
>
>
>
> Dear Ken,
>
>
>
> When I got the tires made little changes like camber, ride height, sway
> bar settings.
>
>
>
> For sure the high pressure on the tires make them feel nice to ride….but
> the laptime says -> SLOW.
>
>
>
> Interestingly the low tire pressure felt even better, and the tops speed
> chart is also interesting:
>
> 32psi – 194kph
>
> 30psi – 208kph
>
> 34psi – 197kph
>
> 27psi – 216kph – 5th fastest  car in that race.
>
>
>
> Means, low pressure is the way to go.
>
> But I’ll get a softer compound for the back end. The tire man said, the
> rear tires don’t reach the necessary temperature.
>
>
>
>
>
> Cheers
>
> Chris
>
>
>
>
>
> *From:* Ken Knight <kknight at klaenv.com>
> *Sent:* Sunday, July 9, 2023 7:58 PM
> *To:* Christian Marx <tr4racing at googlemail.com>; fot at autox. team. net <
> fot at autox.team.net>
> *Subject:* RE: [Fot] Hoosier radial slicks
>
>
>
> It is a *setup* and may require changes in spring rates, sway bar
> settings, camber and toe to get the most out of the tire.  The way the car
> is driven on the new tires; braking points, turn in, power out can also be
> a learning curve.  The “feel” of these tires is going to be different than
> the old tire and possible as you get to the edge more subtle before losing
> all grip.  Just takes a bit of track time and you will no doubt get it.  Ken
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows
>
>
>
> *From: *Christian Marx via Fot <fot at autox.team.net>
> *Sent: *Sunday, July 9, 2023 8:11 AM
> *To: *fot at autox. team. net <fot at autox.team.net>
> *Subject: *Re: [Fot] Hoosier radial slicks
>
>
>
> I first tried high pressure.
>
> Again 5 secon slower in total 10 seconds.
>
>
>
> Then I tried low pressure....faster then my other tries.
>
> Only 3 seconds slower than the Avon Times.
>
>
>
> Cheers
>
> Chris
>
>
>
> Brian Dolan <bdolan1776 at gmail.com> schrieb am So., 9. Juli 2023, 12:08:
>
> 27 is my bet.
>
>
>
> The radials will be a few seconds slower than slicks because less grip
>
>
>
> On Sun, Jul 9, 2023 at 12:08 AM Christian Marx via Fot <fot at autox.team.net>
> wrote:
>
> Thanks guys,
>
>
>
> Wit AVON I started with 14psi cold and got up to 22psi hot. Biasply
> slicks.
>
>
>
> The Hoosiers are radials.
>
> I'm currently 5 seconds slower using 32psi hot and was 6 seconds slower
> with 30 psi hot.
>
>
>
> Not sure which direction to go?
>
> 34psi or 27psi hot?
>
>
>
> Cheers Chris
>
>
>
> Christian Marx <tr4racing at googlemail.com> schrieb am Sa., 8. Juli 2023,
> 21:34:
>
> Hi guys,
>
>
>
> Anyone has some input about the target pressure on these slicks?
>
>
>
> Cheers
>
> Chris
>
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