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Re: effects of switching from 245/45/17 to 235/40/17??

To: Toy4speed@aol.com, ba-autox@autox.team.net
Subject: Re: effects of switching from 245/45/17 to 235/40/17??
From: james creasy <Black94PGT@pacbell.net>
Date: Tue, 29 Jan 2002 11:01:25 -0500
>How is your front handling ?  Understeer or good bite ?

AWFUL!  my car was pushing like crazy under power on sunday- could almost
never get to full throttle.  it seems worse than ever.  turns ok under trail
braking and mid corner, get on the gas and it goes (almost) straight.  if i
load the rear too much the suspension binds up so i have to take it easy.
(hoping to fix this problem soon)

pressure: im already at 20 lbs front.  can i go lower even?

my theory is warmer, smaller front tires are better than larger, cooler ones.
right, wrong?

>You would get 10" wheels for front too ?

i would need tubular lower a-arms (currently have the mustang ones).  someday!
i dont care much about rotating- tires wear evenly and get hard long before
the rubber wears off anyway.

-james



  ----- Original Message -----
  From: Toy4speed@aol.com
  To: Black94PGT@pacbell.net ; ba-autox@autox.team.net
  Sent: Tuesday, January 29, 2002 1:49 PM
  Subject: Re: effects of switching from 245/45/17 to 235/40/17??


  In a message dated 1/29/2002 10:31:47 AM Pacific Standard Time,
Black94PGT@pacbell.net writes:



    other than ride height, what differences can i expect?  this is on a 17x9
    wheel.  the rear tires will remain a 275/40/17 on a 17x10 wheel.



        I'm sure you have a pretty good grasp of the effects of this change
but my .02 worth:  How is your front handling ?  Understeer or good bite ?
Lower tire ht could upset front/rear weight balance, should result in more
tendency for pushing.  The 235 tires would be stretched nicely on 9' rims, so
initial response may improve, and maybe even allow you to run lower tire
pressure as less likely to have tire rollover.


    the new kumho ECSTA V700 tire isnt available in 245/45/17, however my
front
    tire temps have been 20 or so degrees lower than the rears.  the smaller
    width and smaller circumference should raise the temp, correct?


        I would expect the smaller width to raise tire temp, all other things
being equal.
  Look at if tire temp is fairly even across the tread.  Just having a lower
tire temp in front vs back just indicates to me with you hp, the rears are
heating up from the power.  You never spin those rear tires, right ?


    borden went fast on 275/40/17 front and rear, thats my other option.
    comments?



        Ok, I'm biased.  I like wide tires, same size front and rear.
Financially good with ability to rotate.  Yeah, I like the 275 all around
idea, just gotta figure out good tire pressure for your weight car.  You would
get 10" wheels for front too ?

  Looks like a fun time in OSP this year !

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