[DeTomaso] Tires for track days

Dave Londry davel at emspace.com
Tue May 18 14:58:54 EDT 2010


73 L, same wheels, same measurement, 235/40 -17 PS2s, same result.
dave

STEVEN BLUM wrote:
> I have a related question. On my 74 L I am running 245/40 17 on the 10 spoke aluminum wheel. On a full lock left turn I get rubbing on the front right side wheel well but not on a full right turn. I measured and it appears the right wheel is about 1/2 inch closer to the front fendr than the left side. I have the Pat Michals suspension modification and the alignment was done and is good.  Any suggestions on how to stop the rubbing or should I just put in a stop on the turning radius? 
>
> Steven Blum
> P.O. Box 81 
> Shoreham, N.Y. 11786 
> H (631) 744-6118 
> C (631) 235-1905
>
>
>
>  
>   
>> From: JDeRyke at aol.com
>> Date: Tue, 18 May 2010 14:27:24 -0400
>> To: ehpantera at yahoo.com
>> CC: detomaso at realbig.com
>> Subject: Re: [DeTomaso] Tires for track days
>>
>> In a message dated 5/18/10 8:41:35 AM, ehpantera at yahoo.com writes:
>>
>>     
>>> I have the brake rotors mounted on outside hats, pushing the wheels out 
>>> a bit. My 285's are pretty close to the fender. If I go to 18" wheels can I 
>>> get more backspace?
>>>
>>>       
>> Yes- by choosing wheels that have compensating backspace for the extra 
>> 1/4"-5/16" from those outside mounted brake discs. Of course, then the front 
>> scrub radius can become significant and steering effort & tire wear goes up.... 
>> Be sure to carefully check both sides as many Panteras are asymmetric. What 
>> is ideal on the left side might stick out 1/2" on the right side. Some 
>> aftermarket aluminum wheels have thick enough mounting flanges that a bit can be 
>> machined off the backsides of the flange without seriously weakening them, 
>> but others do not. You may simply have manuvered into a corner where you 
>> CANNOT maximize front tire widths beyond about 245-50 x any wheel diameter. 
>> Good luck- J DeRyke
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