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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

Any downsides to smaller overall tire height from stock?

  • Thread starter Thread starter KrisHorton
  • Start date Start date Sep 21, 2005
K

KrisHorton

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Apr 22, 2005
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Sep 21, 2005
#1
  • Sep 21, 2005
  • #1
I'm planning on ordering my wheels today. I decided on 19's over 20's since the selection of tires for 20's really seems to suck. I want to run at least 255's in the front and 295's in the rear, and if I want to do that on a set of 20's, it means losing about an inch to inch and a half of overall tire height. Is that a bad thing or does it make the car look funny? How hard is it to calibrate the speedo?

I need some opinions ASAP! Thanks!

Kris
 

RandyB

New Member
Feb 20, 2004
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Tx.
Sep 21, 2005
#2
  • Sep 21, 2005
  • #2
KrisHorton said:
I'm planning on ordering my wheels today. I decided on 19's over 20's since the selection of tires for 20's really seems to suck. I want to run at least 255's in the front and 295's in the rear, and if I want to do that on a set of 20's, it means losing about an inch to inch and a half of overall tire height. Is that a bad thing or does it make the car look funny? How hard is it to calibrate the speedo?

I need some opinions ASAP! Thanks!

Kris
Click to expand...

Going to 20s AND losing 1.5" of diameter will make it ride horribly. Stick with 19s, 295/35-19 in the rear and 255/40-19 in front for best results, IMO.
 
K

KrisHorton

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Apr 22, 2005
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Sep 21, 2005
#3
  • Sep 21, 2005
  • #3
Yup! I've decided. Went with 19" Forgeline SP3P's.

Now, which finish should I go with?

http://www.forgeline.com/wheels/sp3p.html
 
C

ctbaker

New Member
Jan 26, 2004
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California
Sep 21, 2005
#4
  • Sep 21, 2005
  • #4
Different tire diameter will mean a different effective rear end gear ratio but you can easily calc it out by knowing the percent difference in tire diameters. Then use a programmer to adjust the speedo and you are golden.
 

RandyB

New Member
Feb 20, 2004
307
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Sep 21, 2005
#5
  • Sep 21, 2005
  • #5
KrisHorton said:
Yup! I've decided. Went with 19" Forgeline SP3P's.

Now, which finish should I go with?

http://www.forgeline.com/wheels/sp3p.html
Click to expand...

I would go with silver, but I'm a little conservative. Fitment is first.
 

DukeOfValencia

Member
Apr 18, 2005
86
3
9
Valencia, CA
Sep 21, 2005
#6
  • Sep 21, 2005
  • #6
personal opinion... don't get anything polished...
You've got chrome and powdercoat choices. They are much easier to maintain. Polished aluminum turns white every few weeks. To get the shine back takes a little effort. Chrome and powdercoat shine up easy.
 
G

gp001

Founding Member
Jun 30, 2001
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Sep 21, 2005
#7
  • Sep 21, 2005
  • #7
RetiredGeneral said:
personal opinion... don't get anything polished...
You've got chrome and powdercoat choices. They are much easier to maintain. Polished aluminum turns white every few weeks. To get the shine back takes a little effort. Chrome and powdercoat shine up easy.
Click to expand...

Or, you could always have your polished aluminum clear powder coated for that ever lasting polished look
 

rickman

Member
Apr 3, 2005
49
0
6
des moines
Sep 21, 2005
#8
  • Sep 21, 2005
  • #8
speedo will be off 3 to 4 mph

i did it and have no problems, didnt even adj the spedo. just compensated for the difference. go 75 insteada 70 and im running 71
firestone 275/40 wide ovals
 

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JTGrant

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Aug 2, 2005
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GA
Sep 22, 2005
#9
  • Sep 22, 2005
  • #9
your odometer will be off, i think?
 
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