High speed stability - Toyota Yaris Forums

gnetster · 06-08-2007, 11:23 PM

Hi, I've got a Yaris sedan (not s). I purchased the car new and have had it for two weeks. Overall, I'm happy with the car. However, I'm noticing that at highway speeds of 65mph, the car feels a little rubbery. I've got 15" rims and 185/60 tires, that came with the car. Have any of you experienced this and if so, how have you addressed it?

Kaotic Lazagna · 06-09-2007, 01:22 AM

a lot of people here will probably say that a new set of rims, larger in width, and new, stickier tires will make the most difference. as for me, i went with lowering my car and adding a strut bar.

grampi · 06-09-2007, 12:44 PM

I think some have also said inflating your tires to 5 PSI over what's listed on the driver's door helps.

YarisPR · 06-09-2007, 04:53 PM

Suspension Upgrade. If not Bigger or widder wheels.

flighttekchris · 06-09-2007, 05:03 PM

Quote:

Originally Posted by YarisPR

Suspension Upgrade. If not Bigger or widder wheels.

will "bigger or wider wheels" affect mileage?

Mr.Yaris · 06-09-2007, 06:03 PM

Quote:

Originally Posted by flighttekchris

will "bigger or wider wheels" affect mileage?

If they're heavier, yes. By how much? That's the real question.

IMO, "high-speed stability" is relative to what you're considering "high-speed" to be. I've had my Yaris @ around 100 mph, but IMO, that's not really all that "high-speed". I've been ~170 mph in my Camaro Z28. To be honest, if 100-120 is what you're referring to, your stock tires should be fine. Any faster than that, and you'll need to start buying the appropriate speed-rated tires, and maybe wider tires for cornering...

churp · 06-09-2007, 11:55 PM

Quote:

Originally Posted by flighttekchris

will "bigger or wider wheels" affect mileage?

Theoretically rolling resistance may increase, especially in rain/snow because you have to displace more liquid.....in real life probably not.

gnetster · 06-10-2007, 12:32 AM

Thanks for the replies :-)

thomasward00 · 06-10-2007, 03:47 PM

I've just installed my new rims and tires, I went from the stock 15 inch steel rims to 16x7 with 205/50/16's and the difference when on the Interstate at 70mph is amazing, it isn't as darty in the wind, its a much more stable car now at speed. With the old rims and tires I didn't feel comfrortable in the Yaris when commuting, this upgrade has made all the difference in the world.

brickhardmeat · 06-10-2007, 03:50 PM

06-08-2007, 11:23 PM	#1
gnetster Drives: Yaris Sedan Join Date: Jun 2007 Location: East Coast Posts: 2	High speed stability Hi, I've got a Yaris sedan (not s). I purchased the car new and have had it for two weeks. Overall, I'm happy with the car. However, I'm noticing that at highway speeds of 65mph, the car feels a little rubbery. I've got 15" rims and 185/60 tires, that came with the car. Have any of you experienced this and if so, how have you addressed it?

06-09-2007, 04:53 PM	#4
YarisPR Drives: Yaris Sedan Join Date: Sep 2006 Location: MayaWest, Puerto Rico Posts: 1,574	Suspension Upgrade. If not Bigger or widder wheels. __________________ I Drive a 129whp Yaris ;)

06-10-2007, 03:50 PM	#10
brickhardmeat Lonesome Cowboy View User's Garage Drives: 2007 WHITE HATCHBACK Join Date: Feb 2007 Location: Inner City, Dallas Posts: 2,995	__________________ SPONSORED BY

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06-09-2007, 01:22 AM	#2
Kaotic Lazagna View User's Garage Drives: '14 GT86, '08 Vitz Join Date: Dec 2006 Location: Central Valley, CA Posts: 9,873	a lot of people here will probably say that a new set of rims, larger in width, and new, stickier tires will make the most difference. as for me, i went with lowering my car and adding a strut bar.

06-09-2007, 12:44 PM	#3
grampi Drives: Corolla Join Date: May 2007 Location: Ohio Posts: 325	I think some have also said inflating your tires to 5 PSI over what's listed on the driver's door helps.

06-10-2007, 12:32 AM	#8
gnetster Drives: Yaris Sedan Join Date: Jun 2007 Location: East Coast Posts: 2	Thanks for the replies :-)

06-10-2007, 03:47 PM	#9
thomasward00 View User's Garage Drives: 2007 Yaris Sedan Join Date: Apr 2007 Location: New Orleans, La Posts: 100	I've just installed my new rims and tires, I went from the stock 15 inch steel rims to 16x7 with 205/50/16's and the difference when on the Interstate at 70mph is amazing, it isn't as darty in the wind, its a much more stable car now at speed. With the old rims and tires I didn't feel comfrortable in the Yaris when commuting, this upgrade has made all the difference in the world.