Tyre sizes front to rear
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Tyre sizes front to rear
I just got a 97 Liberty LX Awd WOOT! But it needs front tyres.
They are 205/55R16 and i got some other tyres that are 205/60R16 that i want to put on. Im having a mental blank and cant work out if that will all sweet with the awd system. It doesnt have LSDs as far as i am aware (i only just got it yesterday!) and im not familiar with the drivetrain yet. Is it the same-ish to an L series but constant AWD?
They are 205/55R16 and i got some other tyres that are 205/60R16 that i want to put on. Im having a mental blank and cant work out if that will all sweet with the awd system. It doesnt have LSDs as far as i am aware (i only just got it yesterday!) and im not familiar with the drivetrain yet. Is it the same-ish to an L series but constant AWD?
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- Gannon
- Senior Member
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- Joined: Sat Nov 05, 2005 10:00 am
- Location: Bowraville, Mid Nth Coast, NSW
Running those different sized tyres will kill your centre diff (which is an LSD) in a short amount of time.
Current rides: 2016 Mitsubishi Triton GLS & 2004 Forester X
Ongoing Project/Toy: 1987 RX Turbo EA82T, Speeduino ECU, Coil-pack ignition, 440cc Injectors, KONI adjustale front struts, Hybrid L Series/ Liberty AWD 5sp
Past rides: 92 L series turbo converted wagon, 83 Leone GL Sedan, 2004 Liberty GT Sedan & 2001 Outback
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Ongoing Project/Toy: 1987 RX Turbo EA82T, Speeduino ECU, Coil-pack ignition, 440cc Injectors, KONI adjustale front struts, Hybrid L Series/ Liberty AWD 5sp
Past rides: 92 L series turbo converted wagon, 83 Leone GL Sedan, 2004 Liberty GT Sedan & 2001 Outback
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Gidday WM
Congrats.
Make that "kill your centre diff in a VERY short amount of time" ...
Probably within around 50 to 200 kms, max.
Subaru even specifically instruct us not to run different makes of tyres, or the same makes with different wear patterns ...
Our AWD vehicles might look much like any other, but connect all four wheels together as a driving set, and it makes for very specific requirements as regards taking good care of them ...
Same with 4WD vehicles, except different (i.e. those with a transfer case in the middle, rather than having a diff in the middle) - if you drive these on hard surfaced roads in 4WD high or low range, whether on dirt or bitumen, you will either throw a drive shaft (usually the front one ... ), or break your transfer case.
Congrats.
Make that "kill your centre diff in a VERY short amount of time" ...
Probably within around 50 to 200 kms, max.
Subaru even specifically instruct us not to run different makes of tyres, or the same makes with different wear patterns ...
Our AWD vehicles might look much like any other, but connect all four wheels together as a driving set, and it makes for very specific requirements as regards taking good care of them ...
Same with 4WD vehicles, except different (i.e. those with a transfer case in the middle, rather than having a diff in the middle) - if you drive these on hard surfaced roads in 4WD high or low range, whether on dirt or bitumen, you will either throw a drive shaft (usually the front one ... ), or break your transfer case.
-
Regards, Ratbag
MY06 2006 XS Fox 5MT/DR, aka Roo2 (mine ... )
MY10 2009 XS Fox Sports Auto, aka RonnyRoo (SWMBO)
Previously:
1993 Impreza 5MT, aka Roo1, traded in on Roo2 in Dec 2011 at nearly 18 y.o. and 234K Kms.
And a dreaded Camry that had seriously expensive oil leaks, traded in on RonnyRoo June 2012 at 18 y.o. and 168K Kms.
SWMBO & I have each driven more than a million miles, so far ...
Regards, Ratbag
MY06 2006 XS Fox 5MT/DR, aka Roo2 (mine ... )
MY10 2009 XS Fox Sports Auto, aka RonnyRoo (SWMBO)
Previously:
1993 Impreza 5MT, aka Roo1, traded in on Roo2 in Dec 2011 at nearly 18 y.o. and 234K Kms.
And a dreaded Camry that had seriously expensive oil leaks, traded in on RonnyRoo June 2012 at 18 y.o. and 168K Kms.
SWMBO & I have each driven more than a million miles, so far ...
testing posting from IE
now is the time ..
-
Regards, Ratbag
MY06 2006 XS Fox 5MT/DR, aka Roo2 (mine ... )
MY10 2009 XS Fox Sports Auto, aka RonnyRoo (SWMBO)
Previously:
1993 Impreza 5MT, aka Roo1, traded in on Roo2 in Dec 2011 at nearly 18 y.o. and 234K Kms.
And a dreaded Camry that had seriously expensive oil leaks, traded in on RonnyRoo June 2012 at 18 y.o. and 168K Kms.
SWMBO & I have each driven more than a million miles, so far ...
Regards, Ratbag
MY06 2006 XS Fox 5MT/DR, aka Roo2 (mine ... )
MY10 2009 XS Fox Sports Auto, aka RonnyRoo (SWMBO)
Previously:
1993 Impreza 5MT, aka Roo1, traded in on Roo2 in Dec 2011 at nearly 18 y.o. and 234K Kms.
And a dreaded Camry that had seriously expensive oil leaks, traded in on RonnyRoo June 2012 at 18 y.o. and 168K Kms.
SWMBO & I have each driven more than a million miles, so far ...
- RSR 555
- Elder Member
- Posts: 6951
- Joined: Sat Nov 10, 2007 10:42 am
- Location: ATM... stuck in Rockingham
Pretty much what these guys said Johnny.. Try and buy all 4 tyres and rotate them as much as possible to give you an even wear pattern.
Just checking but are you 100% sure it's AWD? as not to many LX models were.
Just checking but are you 100% sure it's AWD? as not to many LX models were.
You know you are getting old when the candles on your birthday cake start to cost more than the cake itself.
RSR Performance
Home of the 'MURTAYA' in Oz
Subaru Impreza WRX based Sportscar
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Disclaimer: Not my website but hyperlink here to Subaru workshop manuals
RSR Performance
Home of the 'MURTAYA' in Oz
Subaru Impreza WRX based Sportscar
[SIGPIC][/SIGPIC]
Disclaimer: Not my website but hyperlink here to Subaru workshop manuals
Hahaha, More money to spend. and no sry i don't have a set....
The project, EJ22 --->>> EJ25 Quad CAM:D touring wagon
Thinking of going on holidays on a little paradise island, Check out http://www.dodolidays.com
Thinking of going on holidays on a little paradise island, Check out http://www.dodolidays.com
DO IT, DO IT, Don't worry, i've got a few diff's and gearbox i can sell you when you break yours:D HAHAHAHAHAHAHAtaza wrote:I ran an odd size spare on my Forester for about 20-30km and there wasn't even much difference in the size. Caused the centre diff to whine like a bitch in my old gearbox. Never do it with an AWD unless your loaded with $$..
Or they bought a badge off ebay, or a boot from the wreakers:)Wagonman wrote:Lol shut up Guy!! Yeah its a LX but i have a feeling it has been converted from an auto to manual at the very least. Or its imported?? Has legacy written on the boot..
If it was auto on the driver side shock tower, in the engine bay, if you see and little black fuse close to the top of the shock hat then you know if was auto.
The project, EJ22 --->>> EJ25 Quad CAM:D touring wagon
Thinking of going on holidays on a little paradise island, Check out http://www.dodolidays.com
Thinking of going on holidays on a little paradise island, Check out http://www.dodolidays.com
- RSR 555
- Elder Member
- Posts: 6951
- Joined: Sat Nov 10, 2007 10:42 am
- Location: ATM... stuck in Rockingham
Only if the car was an AWD auto.guyph_01 wrote:If it was auto on the driver side shock tower, in the engine bay, if you see and little black fuse close to the top of the shock hat then you know if was auto.
Johnny... can you take some pics of the compliance plates under the bonnet and PM me them.
You know you are getting old when the candles on your birthday cake start to cost more than the cake itself.
RSR Performance
Home of the 'MURTAYA' in Oz
Subaru Impreza WRX based Sportscar
[SIGPIC][/SIGPIC]
Disclaimer: Not my website but hyperlink here to Subaru workshop manuals
RSR Performance
Home of the 'MURTAYA' in Oz
Subaru Impreza WRX based Sportscar
[SIGPIC][/SIGPIC]
Disclaimer: Not my website but hyperlink here to Subaru workshop manuals
- Brumby Kid
- General Member
- Posts: 1297
- Joined: Sun Jul 17, 2011 9:19 pm
- Location: Belair S.A.
The different size of tyres you have.
I thought it was the width that was different, not the height or rolling size.
205/55 rim 16"
205/60 rim 16"
Shouldn't this be ok?
I thought it was the width that was different, not the height or rolling size.
205/55 rim 16"
205/60 rim 16"
Shouldn't this be ok?
When life gives you a corner, drop a gear, pitch, and stomp the loud pedal
Bianca: 1991 Subaru Brumby
My First / Project car
EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
Mums Car 08 Liberty Wagon
Bianca: 1991 Subaru Brumby
My First / Project car
EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
"Bianca"
[SIGPIC][/SIGPIC]
Dads Car: 02 Impreza WRX STi[SIGPIC][/SIGPIC]
Mums Car 08 Liberty Wagon
205 is the width and 55 is a pencentage of the width. This will effect the overall diametre and cause damage..
Does anyone know how much you can get away with before it becomes an issue for the gearbox?
Theres about 10mm difference between those two sets of tyres (if ive done my rough calculations right). Then instead you have slightly bald tyres on the front and tyres with 5mm tread on the rear, would that be an issue when theres only 5mm difference between those two scenarios?? Hypotheticly speaking..
Does anyone know how much you can get away with before it becomes an issue for the gearbox?
Theres about 10mm difference between those two sets of tyres (if ive done my rough calculations right). Then instead you have slightly bald tyres on the front and tyres with 5mm tread on the rear, would that be an issue when theres only 5mm difference between those two scenarios?? Hypotheticly speaking..
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Check out this thread Wagonman:Wagonman wrote:205 is the width and 55 is a pencentage of the width. This will effect the overall diametre and cause damage..
Does anyone know how much you can get away with before it becomes an issue for the gearbox?
Theres about 10mm difference between those two sets of tyres (if ive done my rough calculations right). Then instead you have slightly bald tyres on the front and tyres with 5mm tread on the rear, would that be an issue when theres only 5mm difference between those two scenarios?? Hypotheticly speaking..
showthread.php?t=21272&highlight=tyres
Peter
Cheers Subyroo, that was very helpful.
In the end i think it was decided that up to 4% difference of the tyre circumference between each tyre is acceptable to keep your drivetrain in good condition.
As in;
If the rolling distance of tyre 1 is 100cm then the rolling distance of tyres 2,3,4 should be within 4cm of each other.
In the end i think it was decided that up to 4% difference of the tyre circumference between each tyre is acceptable to keep your drivetrain in good condition.
As in;
If the rolling distance of tyre 1 is 100cm then the rolling distance of tyres 2,3,4 should be within 4cm of each other.
[SIGPIC][/SIGPIC]
It's not worth the risk imho. Tyres are way cheaper than gearboxes and diffs
Sent from my HTC Velocity 4G using Tapatalk 2
Sent from my HTC Velocity 4G using Tapatalk 2
my07 Outback
my13 Hyundai i45(shhhh)
my02 Gen3 Liberty limited ed.
previously
L-series wagon, LSD, EJ20turbo, 29in tyres, 'wanky wagon'
2000 gen3 outback, lifted, otherwise stock.
my13 Hyundai i45(shhhh)
my02 Gen3 Liberty limited ed.
previously
L-series wagon, LSD, EJ20turbo, 29in tyres, 'wanky wagon'
2000 gen3 outback, lifted, otherwise stock.
- Brumby Kid
- General Member
- Posts: 1297
- Joined: Sun Jul 17, 2011 9:19 pm
- Location: Belair S.A.
So if my tyres are
175/75/13
What does this mean?
I thought it was
Overall diameter(often in inches) / width / rim size.
Cheers Cam
175/75/13
What does this mean?
I thought it was
Overall diameter(often in inches) / width / rim size.
Cheers Cam
When life gives you a corner, drop a gear, pitch, and stomp the loud pedal
Bianca: 1991 Subaru Brumby
My First / Project car
EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
Mums Car 08 Liberty Wagon
Bianca: 1991 Subaru Brumby
My First / Project car
EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
"Bianca"
[SIGPIC][/SIGPIC]
Dads Car: 02 Impreza WRX STi[SIGPIC][/SIGPIC]
Mums Car 08 Liberty Wagon
That's tyre width/profile/rim diameter ...Brumby Kid wrote:So if my tyres are
175/75/13
What does this mean?
I thought it was
Overall diameter(often in inches) / width / rim size.
Cheers Cam
From my Batphone
-
Regards, Ratbag
MY06 2006 XS Fox 5MT/DR, aka Roo2 (mine ... )
MY10 2009 XS Fox Sports Auto, aka RonnyRoo (SWMBO)
Previously:
1993 Impreza 5MT, aka Roo1, traded in on Roo2 in Dec 2011 at nearly 18 y.o. and 234K Kms.
And a dreaded Camry that had seriously expensive oil leaks, traded in on RonnyRoo June 2012 at 18 y.o. and 168K Kms.
SWMBO & I have each driven more than a million miles, so far ...
Regards, Ratbag
MY06 2006 XS Fox 5MT/DR, aka Roo2 (mine ... )
MY10 2009 XS Fox Sports Auto, aka RonnyRoo (SWMBO)
Previously:
1993 Impreza 5MT, aka Roo1, traded in on Roo2 in Dec 2011 at nearly 18 y.o. and 234K Kms.
And a dreaded Camry that had seriously expensive oil leaks, traded in on RonnyRoo June 2012 at 18 y.o. and 168K Kms.
SWMBO & I have each driven more than a million miles, so far ...
- Brumby Kid
- General Member
- Posts: 1297
- Joined: Sun Jul 17, 2011 9:19 pm
- Location: Belair S.A.
Picture showing whys what?
Just to clarify we're talking about the same things.
Cheers Cam
Just to clarify we're talking about the same things.
Cheers Cam
When life gives you a corner, drop a gear, pitch, and stomp the loud pedal
Bianca: 1991 Subaru Brumby
My First / Project car
EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
Mums Car 08 Liberty Wagon
Bianca: 1991 Subaru Brumby
My First / Project car
EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
"Bianca"
[SIGPIC][/SIGPIC]
Dads Car: 02 Impreza WRX STi[SIGPIC][/SIGPIC]
Mums Car 08 Liberty Wagon
- RSR 555
- Elder Member
- Posts: 6951
- Joined: Sat Nov 10, 2007 10:42 am
- Location: ATM... stuck in Rockingham
175 = 175mm - this is the 'width of the thread', width of the tyre from inside to outside (sidewall to sidewall)Brumby Kid wrote:So if my tyres are
175/75/13
What does this mean?
I thought it was
Overall diameter(often in inches) / width / rim size.
Cheers Cam
75 = 75% -this is height of the tyre. It's a percentage of the width (i.e. 175 x 75% = 131.25mm)
13 = 13 inch - this is the size of the rim
Here is a good calculator for when fitting larger rims. It allows you to keep your speedo in check.
http://www.miata.net/garage/tirecalc.html
You know you are getting old when the candles on your birthday cake start to cost more than the cake itself.
RSR Performance
Home of the 'MURTAYA' in Oz
Subaru Impreza WRX based Sportscar
[SIGPIC][/SIGPIC]
Disclaimer: Not my website but hyperlink here to Subaru workshop manuals
RSR Performance
Home of the 'MURTAYA' in Oz
Subaru Impreza WRX based Sportscar
[SIGPIC][/SIGPIC]
Disclaimer: Not my website but hyperlink here to Subaru workshop manuals