Can you feel 5-7 pounds of wheel weight per corner? 20 lbs total - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

leevanf · 12-25-2018, 02:22 AM

How does 5-7 pounds per corner less of wheel and tire weight savings really feel like? I mean i am sensitive to an empty gas tank. So would i feel it especially over potholes and bumpy roads?

FR-Sky · 12-25-2018, 04:56 AM

It is a different perspective.
I felt much different when I changed to Enkei rpf1, but not much different taking out all the stuff from the trunk. (my trunk was stripped.)

chaoskaze · 12-25-2018, 06:01 AM

You should go test drive a fellow 86 owner's car with lighter wheel/tires.

TommyW · 12-25-2018, 06:04 AM

It's not the overall weight that it affects it's the unsprung weight. You feel it in the brakes, steering and suspension for the most part

Maxxturbo · 12-26-2018, 12:50 AM

Quote:

Originally Posted by TommyW

It's not the overall weight that it affects it's the unsprung weight. You feel it in the brakes, steering and suspension for the most part

Also under acceleration.......

Impureclient · 12-26-2018, 01:03 AM

I felt a 4.5 lb drop for sure changing wheels but got used to it pretty quick after a couple times driving it.

Decep · 12-26-2018, 01:12 AM

TBH i felt nothing going from stock wheels to 17x8 RPF1s which are super light. i didnt upsize tires either.

jflogerzi · 12-26-2018, 01:13 AM

That's quite a bit. What wheel and tire combo did u get? You will notice.. but more on canyon and track days vs DD.

Sent from my ONEPLUS A5010 using Tapatalk

StraightOuttaCanadaEh · 12-26-2018, 01:44 AM

I notice a difference in acceleration and ride quality changing from summer to winter tires on the same rim

Adam_L · 12-26-2018, 02:20 AM

Outer wheel weight (tire) is more significant of a weight issue then alloy wheels. However, trying to reduce tire weight by 1-3 pounds can /is difficult.

Doing both at the same time (new alloys shaving 3-7 lbs per corner) and new tires.... 215 /40- 17" , you'd probably notice a difference. Or , if you'd be willing to go 16" wheel, you for sure can reduce down wheel weight that way fast, but tire weight could still be similar to a 17" wheel ( due to the fact most 16" tires tend to have a higher profile , like a 205- 55- 16" )

If you live where it rains a lot, don't skimp... get a quality rain tire (not all season)

leevanf · 12-26-2018, 03:53 AM

Quote:

Originally Posted by Adam_L

Outer wheel weight (tire) is more significant of a weight issue then alloy wheels. However, trying to reduce tire weight by 1-3 pounds can /is difficult.

Doing both at the same time (new alloys shaving 3-7 lbs per corner) and new tires.... 215 /40- 17" , you'd probably notice a difference. Or , if you'd be willing to go 16" wheel, you for sure can reduce down wheel weight that way fast, but tire weight could still be similar to a 17" wheel ( due to the fact most 16" tires tend to have a higher profile , like a 205- 55- 16" )

If you live where it rains a lot, don't skimp... get a quality rain tire (not all season)

Hey adam, problem is this. I want the tws t66f in 16x7. That alone is a 10 lb savings. Problem is, tires are on the heavier side, likely 22-23lbs. Thats 2-3 more than stock primacy. So i net out about 7 lbs.

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leevanf · 12-26-2018, 03:55 AM

Quote:

Originally Posted by jflogerzi

That's quite a bit. What wheel and tire combo did u get? You will notice.. but more on canyon and track days vs DD.

Sent from my ONEPLUS A5010 using Tapatalk

Looking at the TWS T66F 16x7, on 225/50 or 205/55 tires. Wheel is already 10lb savings vs stock. But tired are nearly 3 lbs heavier so its about 7 lbs net

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new2subaru · 12-26-2018, 07:47 AM

Quote:

Originally Posted by leevanf

Looking at the TWS T66F 16x7, on 225/50 or 205/55 tires. Wheel is already 10lb savings vs stock. But tired are nearly 3 lbs heavier so its about 7 lbs net

You can go 205/50 R16. From what I read this is a very capable tire and you'll lose a pound or two.

https://www.tirerack.com/tires/tires...omCompare1=yes

SuperTom · 12-26-2018, 10:20 AM

Quote:

Originally Posted by leevanf

Hey adam, problem is this. I want the tws t66f in 16x7. That alone is a 10 lb savings. Problem is, tires are on the heavier side, likely 22-23lbs. Thats 2-3 more than stock primacy. So i net out about 7 lbs.

Sent from my iPhone using Tapatalk

That's the issue I can up with when looking at the t66f plus the offset is high so they will be really tucked in as well meaning you might have to add spacers for either brake kit or just for looks.

Went with lightweight Konig Hypergrams 17x8 at 16.5lbs and stock size tires in Hankook Evo's at 19 lbs . So saved about 6lbs total for a lot less money then the t66f setup

As for your question its similar to the lightweight pulleys where you can feel some acceleration gains in 1st and second. Suspension wise the wheels will be able respond to bumps better and easier on the brakes to stop a lighter wheel

12-25-2018, 02:22 AM	#1
leevanf Senior Member Join Date: May 2017 Drives: 2014 BRZ Limited A/T Location: Philippines Posts: 313 Thanks: 15 Thanked 97 Times in 47 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Can you feel 5-7 pounds of wheel weight per corner? 20 lbs total How does 5-7 pounds per corner less of wheel and tire weight savings really feel like? I mean i am sensitive to an empty gas tank. So would i feel it especially over potholes and bumpy roads? Last edited by leevanf; 12-25-2018 at 02:40 AM.

12-26-2018, 01:44 AM	#9
StraightOuttaCanadaEh Wes Join Date: Feb 2017 Drives: Artisan Spirits '17 86 Location: Toronto Posts: 2,871 Thanks: 1,255 Thanked 1,734 Times in 1,025 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	I notice a difference in acceleration and ride quality changing from summer to winter tires on the same rim __________________ Instagram: @gt86ws

12-26-2018, 02:20 AM	#10
Adam_L Senior Member Join Date: May 2016 Drives: '16 FR-S RS2 MT, '06 xA Polar MT Location: Central Coast California Posts: 666 Thanks: 1,133 Thanked 159 Times in 118 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Outer wheel weight (tire) is more significant of a weight issue then alloy wheels. However, trying to reduce tire weight by 1-3 pounds can /is difficult. Doing both at the same time (new alloys shaving 3-7 lbs per corner) and new tires.... 215 /40- 17" , you'd probably notice a difference. Or , if you'd be willing to go 16" wheel, you for sure can reduce down wheel weight that way fast, but tire weight could still be similar to a 17" wheel ( due to the fact most 16" tires tend to have a higher profile , like a 205- 55- 16" ) If you live where it rains a lot, don't skimp... get a quality rain tire (not all season) __________________ Math is like Love, simple idea at first that quickly gets complicated

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12-25-2018, 04:56 AM	#2
FR-Sky Senior Member Join Date: Dec 2015 Drives: 2013 FR-S 10 series [755] Location: Bay Area, CA Posts: 1,189 Thanks: 385 Thanked 390 Times in 264 Posts Mentioned: 7 Post(s) Tagged: 2 Thread(s)	It is a different perspective. I felt much different when I changed to Enkei rpf1, but not much different taking out all the stuff from the trunk. (my trunk was stripped.)

12-25-2018, 06:01 AM	#3
chaoskaze The Fail Boat Join Date: Aug 2011 Drives: CWP S.B. Location: LasVegas Posts: 3,028 Thanks: 4,720 Thanked 1,294 Times in 874 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	You should go test drive a fellow 86 owner's car with lighter wheel/tires.

12-25-2018, 06:04 AM	#4
TommyW Senior Member Join Date: Feb 2017 Drives: '13 Whiteout Location: San Clemente Posts: 1,493 Thanks: 496 Thanked 1,245 Times in 674 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	It's not the overall weight that it affects it's the unsprung weight. You feel it in the brakes, steering and suspension for the most part

12-26-2018, 01:03 AM	#6
Impureclient Banned Join Date: May 2015 Drives: 2015 FR-S Location: NPR, Florida Posts: 2,404 Thanks: 1,802 Thanked 2,903 Times in 1,282 Posts Mentioned: 25 Post(s) Tagged: 2 Thread(s)	I felt a 4.5 lb drop for sure changing wheels but got used to it pretty quick after a couple times driving it.

12-26-2018, 01:12 AM	#7
Decep Senior Member Join Date: May 2017 Drives: 2013 FR-S Series 10 Location: CA Posts: 1,073 Thanks: 172 Thanked 497 Times in 326 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	TBH i felt nothing going from stock wheels to 17x8 RPF1s which are super light. i didnt upsize tires either.

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