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20 inch Wheels with high horsepower

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20 inch Wheels with high horsepower
Old December 21st, 2015, 07:18 AM   #1
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20 inch Wheels with high horsepower

I'd like to do a 19 & 20 inch combo on my 99 as it looks great.

At what hp am I going to struggle with traction?
My car is FI and I will be increasing the power again soon.

Is this a mistake to go with 20s or are there some good tires out there that will make up for it?

Thank you.
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Old December 21st, 2015, 07:35 AM   #2
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Since when did the diameter of the wheel dictate traction? Compound and tread are more likely.
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Old December 21st, 2015, 07:38 AM   #3
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The thin sidewall and limited tire choices is what I was thinking.

What size would you suggest for a 20x13?

Thanks for the help Dave
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Old December 21st, 2015, 07:40 AM   #4
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My 20" rears are PS2's. Traction sucks lol.
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Old December 21st, 2015, 07:45 AM   #5
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Ok I'll do some research.
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Old December 21st, 2015, 07:49 AM   #6
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The oldest tire date codes are my rears, at a whopping 3 years old. Not 20s, and factory spec, my point is; I don't think its a size thing. Mine spin and feel greasy in every gear. I think it's a power management issue. I'd spin and whip my rear end out almost every basic corner in the neighborhood until I just drive it differently than my wife's Hyundai.
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Old December 21st, 2015, 07:59 AM   #7
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my wife's Hyundai.
Quoted for reference.
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Old December 21st, 2015, 08:12 AM   #8
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I'll have to hire a translator to see if there's any useful info in any post so far lol
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Old December 21st, 2015, 08:13 AM   #9
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Wut
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Old December 21st, 2015, 08:36 AM   #10
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I cant even find a wheel design I like. If I do I'll be broke and will have no traction. Time to quit and sell the car
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Old December 21st, 2015, 09:01 AM   #11
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Since when did the diameter of the wheel dictate traction? Compound and tread are more likely.
Do you think people run 15" and 16" drag wheels on the rear to look cool?

Less tire sidewall = more stiffness = less flex = less traction.
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Old December 21st, 2015, 09:04 AM   #12
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I cant even find a wheel design I like. If I do I'll be broke and will have no traction. Time to quit and sell the car
20" tire options are terrible for anything with straightline grip.

If you want any traction, at least go 19" on the rear so you can run an NT05R drag radial. They still won't do well at the drag strip but it's a better compromise than a 20".

If you are set on 19/20, but still want to go fast, just pickup a drag pack for the rear and throw them on when you want to get serious.
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Old December 21st, 2015, 09:14 AM   #13
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The 20" Nitto Invos are the best option for a non drag radial tire. When you heat them up a bit, they are Ok on the street. But you will still spin, especially with an FI set up. Good traction control is your friend, as my last car was much more drivable/fun with TC vs. without.
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Old December 21st, 2015, 09:16 AM   #14
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Quote:
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Do you think people run 15" and 16" drag wheels on the rear to look cool?

Less tire sidewall = more stiffness = less flex = less traction.
I'm pretty sure he was being sarcastic
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Old December 21st, 2015, 09:20 AM   #15
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Lots of high hp Vipers on the street running 20" Invo's. They are your best choice for 20's IMHO.
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Old December 21st, 2015, 09:22 AM   #16
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Thanks a lot so I guess Nitto Invo it is.

Will I have no traction at all with say 800rwhp?

I'm not looking to run fast times in the 1/4 mile. Looking to drive on the street and not be completely out of control
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Old December 21st, 2015, 09:29 AM   #17
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I have 700 ftlbs of torque and i manage just fine with Invo's. I have had several people very surprised at how well they hook. As previously mentioned, just gotta heat them up and use common sense with the right foot.

If 1500 rwhp TT cars manage with them, you should be fine with them also.
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Old December 21st, 2015, 10:56 AM   #18
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Sounds great thanks a lot.

I am shooting for high hp also.

What's the proper size to go with on a 20x13?
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Old December 21st, 2015, 11:06 AM   #19
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Quote:
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Do you think people run 15" and 16" drag wheels on the rear to look cool?
Negative. They run them because the tire manufacturers make the tires in those sizes lol.
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Old December 21st, 2015, 11:56 AM   #20
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Not sure if serious Dave...

The taller the side wall and the lower the air pressure the larger the contact patch...
This is of course only true for the same overall tire diameter.


Tire material (and age) does have more of an impact, along with temperature on overall traction.
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