Summer tires mess up handling

[Ed Kellock]

I have some of the Kumho 711's on some urS4 wheels and they aren't too bad.

I have a fairly worn set of SP5000's in 235/50-16 that I may put back on the
A6 wheels to put on the 93 V8.  

When I got the 93 V8, it had some 17x8 et35 Modas with Michelin 245/40-17's
and it tramlined a good bit.  I mounted up my 17x9 Cup 1 replicas with
255/40's and yikes.  But that has been true with any car I've put those on.
Hopefully the 16x8 BBS with SP8000'd will tame it down for now.

I'm definitely pulling the H&R's.  I checked ETKA and the only diff among
springs for the V8's are between automatic and manual cars.  So I could use
any displaced stock oem springs from an automatic V8.  

Ed

> -----Original Message-----
> From: Tony Hoffman [mailto:auditony at gmail.com] 
> Sent: Saturday, April 21, 2007 6:22 PM
> To: Ed Kellock
> Cc: Quattro List
> Subject: Re: Summer tires mess up handling
> 
> 
> I've had tramlining problems on several cars, so here's what 
> I"ve found.
> 
> It started with a 1981 Audi 4000 5+5 with 14's on it. With 
> the old worn out tires, it was very bad. With the new (don't 
> remember)tires on it, the problem was solved.
> 
> My 1998 Mustang was so bad it was downright scary when the 
> "Gatorbacks" in size 245/45-17 were worn to their limits. To 
> be honest, it wasn't that great when they were new. I had the 
> alignment checked three times by different shops because it 
> was so severe, and they all said it was within specs. Some 
> new Summitomo HTR+'s fixed it completely.
> 
> My 1991 V8Q (current) Came with 235/45-17's on S4 wheels, and 
> tramlining was pretty bad. It had brand new Summitomo HTR2's 
> on it. With snows, none whatsoever. When I replaced the 17's 
> with 16's, I put Kumho 711's size 225/50-16 on the car. No 
> tramlining, which somewhat surprised me. The car has over 
> 300K and worn suspension will definately make it worse. 
> Anyhow, now the tires are pretty worn (about
> 35K) and it definately tramlines again.
> 
> So, different tires, even from the same manufacturer can 
> definately make a difference. I guess I'd probably try the 
> HTR+'s or Kumho ASX's and possible the SP 5000's if they are 
> still available, as they are all season HP tires and may hove 
> more give in them to help. This is just an SWAG, though.
> 
> Just my .02,
> Tony Hoffman
> 
> 
> On 4/21/07, Ed Kellock <ekellock at gmail.com> wrote:
> > Correction... the tire size is 225/50-16 not 60 series.  
> I'm sure most 
> > just assumed it was a mistake but wanted to be sure.> >
> > > I believe it's a function of width and tread compound and 
> design.  
> > > On my Avant I'm pretty well limited to 16's or bigger due to the 
> > > brakes.  It came with 16x7 Dunlop SP8000's 225/60-15's 
> which tend to 
> > > run fairly large for that size, so they tramline pretty 
> > > significantly also due to their large longitudinal grooves.
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