98 GT vs. charger

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#31

02-13-2006, 09:58 AM

GREG@94GT

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[QUOTE=FritoBandito]

Quote:

Originally Posted by GREG@94GT

the tires will make almost no difference...

ya know what figure it out for yer selves

Good Idea! I gonna go get a tumor if I keep trying to figure on this one.

What was this thread about again???????

BTW... i'm going to NJIT for mechanical engineering... i took honors physics classes in highschool and have aced the physics classes in NJIT...

physics is 1 of my strong points... how bout ya just take my word for it... it can get very complicated to try and explain it...

#32

02-13-2006, 10:33 AM

whitethunder46

Always Detailin'

Join Date: Oct 2005

Location: Dayton, OH

Posts: 3,556

Here: 17x10.5 bullit DD = 27lbs.
Tire choice is BFG KD: 315/35/17 weight: 32lbs.
For both wheels in rear with tires = 118lbs
Overall Diameter is 25.7"

18x10 bullit = 30lbs
Tire choice BFG KD: 295/35/18: 30lbs.
For both wheels in rear with tires = 120lbs
Overall Diameter: 26.1"

That's hardcore facts. Theres ONLY 2 lbs difference in the rear wheels WITH tires, there goes the argument for weight. The diameter difference is 0.4". With this all in mind, the 17 inch wheel will run about, IDK, about 0.03 secs less than the 18's theoretically.

Basically, if you evenly match the wheels and tires with same products, the size doesnt really matter, its 99% driver.

Also, you could make a slight argument that the 17inch could get better traction since it is 315 width and 18 is 295. BUT can you honestly tell that big of a differance with THESE tires?

#33

02-13-2006, 10:41 AM

04DarkShadowGT

Senior Member

Join Date: Sep 2004

Location: Ft Wayne, IN

Posts: 1,095

Quote:

Originally Posted by CCM

It has nothing to do with the weight of the wheels, it's the circumference. The smaller your tire's circumference, the better you'll be off the line.

Yes but that has very little to do with 18" or 17" wheels.

The right size 18" tire will be the same diameter as the original 245/45/17 if you get the right sized 18" tire.

On the other hand a 245/45/17 will be shorter than a 255/45/17. So the size of the wheel only has a small part of the equation.

Just get the right size tire and the diameter will not change.

The biggest difference is weight and that is usually due to going to a wider tire. If you go from a 245/45 stock tire to a 315/35/17 you get more weight too. If you go from a 245/45/17 to a 295/30/18 or whatever you will also gain weight on the tire and wheel.

#34

02-13-2006, 10:48 AM

whitethunder46

Always Detailin'

Join Date: Oct 2005

Location: Dayton, OH

Posts: 3,556

Quote:

Originally Posted by 04DarkShadowGT

Yes but that has very little to do with 18" or 17" wheels.

The right size 18" tire will be the same diameter as the original 245/45/17 if you get the right sized 18" tire.

On the other hand a 245/45/17 will be shorter than a 255/45/17. So the size of the wheel only has a small part of the equation.

Just get the right size tire and the diameter will not change.

The biggest difference is weight and that is usually due to going to a wider tire. If you go from a 245/45 stock tire to a 315/35/17 you get more weight too. If you go from a 245/45/17 to a 295/30/18 or whatever you will also gain weight on the tire and wheel.

You're also gonna gain weight by going to a DD 17 to hold that 315/35/17

#35

02-13-2006, 11:01 AM

04DarkShadowGT

Senior Member

Join Date: Sep 2004

Location: Ft Wayne, IN

Posts: 1,095

Quote:

Originally Posted by whitethunder46

You're also gonna gain weight by going to a DD 17 to hold that 315/35/17

I understand that but the biggest difference is the tire. I have done this, believe me I know. The 10.5" wheels themselves arent a whole lot more than OEM 8". On my DD bulltis the shipping weight was 25lbs, so the wheel is less than that.

On the other hand, 315 tires are quite a bit heavier than the 245 stocker.

#36

02-13-2006, 11:06 AM

whitethunder46

Always Detailin'

Join Date: Oct 2005

Location: Dayton, OH

Posts: 3,556

So whats your argument because the 295/35/18 tire is LESS weight than a 315/35/17 tire

#37

02-13-2006, 11:27 AM

GREG@94GT

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i really dont think that there would be a HUGE difference... but... 17" wheels have less rotating (rotating not linear) weight than 18's...

though that is true... i really dont think that they would slow you down that much... like white thunder said... 18s probably would not add any where near 1/10 a sec... i cant imagine that you would notice anything...

__________________________________________________ _______________

HAVE ANY OF YOU EVER WATCHED DRAGRACING.... FUNNY CAR OR WHATEVR.... EVER NOTICE THAT THEY RUN LIKE 13-15 inch WHEELS??? THEY RUN THEM BECAUSE THERE IS LESS ROTATING WEIGHT!!