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#1510574 02/27/06 04:18 AM
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definitely go with the ones you had on your SHO. in silver.
and if you don't.. tell me what they are so i can get them.


What do you mean, rhetorical question? 1998.5 SVT --> http://www.cardomain.com/ride/2155561/1 #4619 of 6535, born Feb 18, 1998. i'm a smarta$$, don't take it personally
#1510575 02/28/06 01:02 AM
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Originally posted by SteedaSVTââ??¢:
Originally posted by SVTfrog:
The wheels on the SHO look like cheapos.




ya ADR freakin cheap let me tell you



I said they LOOK like cheapos, and it's just my opinion. Though ADR aren't exactly some real expensive wheels.


98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15
#1510576 02/28/06 03:43 AM
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Originally posted by SVTfrog:
Originally posted by SteedaSVTââ??¢:
Originally posted by SVTfrog:
The wheels on the SHO look like cheapos.




ya ADR freakin cheap let me tell you



I said they LOOK like cheapos, and it's just my opinion. Though ADR aren't exactly some real expensive wheels.




You look like a Cheapo Get it!

#1510577 02/28/06 03:59 AM
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i got some lightweight 18's, for sale.


~Alex Ex- SVT Driver627 MUST SELL!!!LOCAL: Pre-98 MOLDED trunk Polk db speakers Corolla parts LED Underbody Kit PM 2000 Green CSVT gone on 2/17/06 2001 Toyota Corolla (SHE RUNS!!!) 1989 Mustang LX 5.0
#1510578 02/28/06 05:01 AM
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supers might be the ugliest wheel ever!

#1510579 02/28/06 05:46 PM
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Originally posted by SteedaSVTââ??¢:
ya 15 pound wheels def preformace robbing!



They are actually and you just don't know it.

Stock E1 = 19.5lbs
225/50 Falkien = 22lbs
Total = 41.5lbs

Your 18" rims = 15lbs
235/35/18 XXX = 25lbs
Total = 40lbs

However the bulk of the weight is where? Exactly, it is at the furthest point out radially from the center. This increases it's moment of inertia exponentially.


The E1 Falkien combo requires 14.48 lb/ft of torque (per tire) to rotate and stop rotating.

The 18" combo requires 16.41 lb/ft of torque (per tire) to rotate and stop rotating.

That is a 13.3% increase in torque required even though the "combo" weighs 1.5lbs less. That will be directly tied to the car's acceleration and braking ability.

How does this apply to acceleration and braking? The car's ability to accelerate & brake (rate of speed change) is a factor in how much difference the change in torque required makes.

For instance using 0-60mph times (in seconds) and comparing it to changes in the total chassis weight.

7 sec = 70lb heavier chassis
6 sec = 80lb heavier chassis
5 sec = 100lb heavier chassis

Now for braking times 60-0.

Stock 132 feet (3 sec) = 165lbs heavier
124 feet (2.8 sec) = 180lbs heavier
116 feet (2.6 sec) = 200lbs heavier

So if I were to run those same "light weight" 18's my car would perform "roughly" as if it were 100lbs heavier when accelerating and 200lbs heavier when it was braking.

So just being lighter means next to nothing at all unless you do the math behind your changes. I stand by my first statement.
This is also the main reason I never went to 17" rims. In order for a 17" rim combo to not hurt my performance the combo would have to weigh about 35lbs.

I used 3150lbs as the vehicle weight (with driver) for all my calculations. A heavier car would slightly raise those results and a lighter one would slightly lower them.


2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.
#1510580 02/28/06 06:12 PM
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Very well put. i think somebody did good in physics, as I have no idea about any of that stuff and the way you presented it made it sound simple!!! Never knew it was that much of a performance rob.


95 LX-with a mind of its own 24v DOHC SVT exhaust and K&N=all thats worth modding Go Fighting Sioux!!!
#1510581 02/28/06 06:20 PM
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Originally posted by DemonSVT:
Originally posted by SteedaSVTââ??¢:
ya 15 pound wheels def preformace robbing!



They are actually and you just don't know it.

Stock E1 = 19.5lbs
225/50 Falkien = 22lbs
Total = 41.5lbs

Your 18" rims = 15lbs
235/35/18 XXX = 25lbs
Total = 40lbs

However the bulk of the weight is where? Exactly, it is at the furthest point out radially from the center. This increases it's moment of inertia exponentially.


The E1 Falkien combo requires 14.48 lb/ft of torque (per tire) to rotate and stop rotating.

The 18" combo requires 16.41 lb/ft of torque (per tire) to rotate and stop rotating.

That is a 13.3% increase in torque required even though the "combo" weighs 1.5lbs less. That will be directly tied to the car's acceleration and braking ability.

How does this apply to acceleration and braking? The car's ability to accelerate & brake (rate of speed change) is a factor in how much difference the change in torque required makes.

For instance using 0-60mph times (in seconds) and comparing it to changes in the total chassis weight.

7 sec = 70lb heavier chassis
6 sec = 80lb heavier chassis
5 sec = 100lb heavier chassis

Now for braking times 60-0.

Stock 132 feet (3 sec) = 165lbs heavier
124 feet (2.8 sec) = 180lbs heavier
116 feet (2.6 sec) = 200lbs heavier

So if I were to run those same "light weight" 18's my car would perform "roughly" as if it were 100lbs heavier when accelerating and 200lbs heavier when it was braking.

So just being lighter means next to nothing at all unless you do the math behind your changes. I stand by my first statement.
This is also the main reason I never went to 17" rims. In order for a 17" rim combo to not hurt my performance the combo would have to weigh about 35lbs.

I used 3150lbs as the vehicle weight (with driver) for all my calculations. A heavier car would slightly raise those results and a lighter one would slightly lower them.




Not in anyway disregarding what was written, but in all probability he's gonna run 225/40/18s on them.

Falken 512's in that size weigh 21.6lbs.

So now the combined weight is 36.6lbs.

Much closer to your "stock" comparison.

The 235/35/18/tire needs a recommended min width of 8" rims, which we've all pretty much decided will rub.

#1510582 02/28/06 08:38 PM
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Good write up demon but what tire brand is Falkien

#1510583 03/01/06 01:15 AM
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Originally posted by Mod-Deth:

The 235/35/18/tire needs a recommended min width of 8" rims, which we've all pretty much decided will rub.



Needs and recommended aren't the same thing.

I'd have no problem fitting 235s to a 7" wheel. I'd prefer 7.5" or 8" but it's plenty doable on 7". And an 8" wheel won't necessarily rub. Offset is important, as are some other things. And you can always trim parts/roll the fenders for whatever rubbing occurs.


98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15
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