Good tires for 1/2 pavement / 1/2 dirt event?

curious what would be the best choice of tire for an event is 1/2 on pavement and 1/2 on dirt alternating. Or what grooving to an existing tire would be good? This is for an Rx7 application w/ 14 or 15 tires

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~A.M.S.

"Some people are afraid of heights, not me. I'm afraid of widths"



Edited 1 time(s). Last edit at 11/03/2008 10:58PM by low impedance.

1/2 dirt & 1/2 paved + Colorado Springs = hmmmm....

Pikes peak?

Monster was running these on the XL-7
http://www.discounttiredirect.com/direct/tires/falken/product/submitProductSize.do?pc=28886&typ=Truck%2FSUV&tmn=Ziex+S%2FTZ-04

With NO cuts. But it's more of a truck tire. 285/60/18

The VW toureg boys were running Michelin? all season tires with 1/4" diagonal sipes across the outside edges.

Lots of others ran pretty much slicks with wide deep cuts.

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Michael LeCompte

It depends on how much faster the tarmac areas are. The faster those areas are the bigger the advantage is going with a tire that is closer to an all out asphalt time. And what is the dirt condition. Back when I was rallyxing the focus I ran Z rated Kumho 712s at the rallyxs that had a very firm clay base. They were useless in the wet but in the dry they had fairly good traction.

Dave Kern ran and liked the Yoko mixed rally tire. Record holder for AWD Time Attack currently. Ordered from Canada.

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Grant Hughes

Are there any actual tire rules? Something like a McCreary dirt tire might work. Prolly not great on loose gravel, but they are incredable on packed stuff and asphalt.

I *think* it has to be DOT legal....the site isnt loading for me at the moment to check the rulebook.

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~A.M.S.

"Some people are afraid of heights, not me. I'm afraid of widths"

Hey, I was going to ask this question, Alex... I'm going to be hardcore into the SuperMoto RallyX series next year in Flint. I was at the test and tune last month and it fairly rocked.

I am not withheld by any tire rules (it has to hold air, that's about it) but I'd kinda prefer something I can drive on the street, so I am leaning towards the chunkiest high performance street tire I can locate.

I do know that with crap suspension that both understeered in corners and couldn't put power down worth a damn coming out of them because it was unweighting the inside rear so much, I was still less than a second off of much, much better equipment/drivers on a 54-sec course. (This new engine is awesome!)

I'm running my good ol' BFG G-Force Sports, which do have the advantage of being cheap street tires. I have not had opportunity to see how they do on dirt, yet. I don't expect to fare well against the AWD guys since we're all lumped into one big run-whatcha-brung class.

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.



Edited 2 time(s). Last edit at 11/04/2008 04:41PM by Pete.

I can test out a few tires choices on some back road areas that switch up

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~A.M.S.

"Some people are afraid of heights, not me. I'm afraid of widths"

I am not sure where you are running but I have found rally tires to work very well on tarmac and I would lean to using a good rally tire for the whole event.

Some very hard packed dirt is suitable for good tarmac tires.

I have even auto-x'ed on rally tires... use up worn down ones.

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In the long run reality always wins.

most of the course is asphalt and is where most of the time is made up for the dirt sections. The dirt is usually pretty packed and well maintained from the people who drive on it daily for the tourism aspects.

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~A.M.S.

"Some people are afraid of heights, not me. I'm afraid of widths"

What rally tires? Gravel or mud or tarmac? (Some of the guys were running tarmac rally tires)

I saw Evan Moen go from all-seasons to his gravel tires (Silverstones IIRC) for a couple runs and then he went right back to all seasons.
(Maybe Silverstones just suck?)

He was the only one who experimented with different tires.

I run Hankooks, I don't know if they'd do well given that they overheat on dirt.

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Pete Remner
Cleveland, Ohio

1984 RX-7 (rallycross thing)
1978
Silence is golden, but duct tape is silver.



Edited 1 time(s). Last edit at 11/06/2008 07:58AM by Pete.

I seem to remember something about kyle sarasin setting a record up brockway this year, on gravel tires...