LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

will 255 tires fit the front

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Old 12-09-07, 02:11 AM
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blkstealthpaid4
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Default will 255 tires fit the front

This will be on my 95 and the tire size will be 255/45/20.
My previous 90 took 245 all around easily and so I know 255 is no problem in the back.I hope I wouldn't have to go shaving off stuff.
Old 12-09-07, 03:45 AM
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why?
larger tires dont equal better handling, it actually makes it worseq
Old 12-09-07, 05:30 AM
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ummm no.

wide tires are GOOD for handling, running Staggered setups (with the way our suspensions are set up from the factory (alignment wise)) causes additional understeer. this person is balancing that by putting wider tires ont he front as well.

bigger wheels (HEAVY WHEELS) will make handling worse. size is less important than weight.

thats why most open-air cars/proto cars run ~18" or larger wheels.


OP:
if you're using the 2IS fronts then yes, there shouldnt be a problem. as long as the offset is conservative it most likely wont be an issue. worst case i would think is a light light fender roll but i doubt you're going to need it.
Old 12-09-07, 06:59 AM
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255 45 20 is a big overall diameter though. larger than it should be unless you're trying to increase ground clearance too.

i'd use the 255 but make it 255 30 20 front and 275 35 20 in rear.
Old 12-09-07, 08:28 AM
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Default my mistake

I am not sure what I had on the other Lexus when I sold it.I may have had 245/35/20 all round and not 245/45/20.
I am curious about the 255/35/20 for the front.It cost much more when they have to order rims for this car without having it on the shelves.This is something I have to deal with.Big calipers...ouch!!
Old 12-09-07, 12:26 PM
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Originally Posted by PureDrifter
ummm no.

wide tires are GOOD for handling, running Staggered setups (with the way our suspensions are set up from the factory (alignment wise)) causes additional understeer. this person is balancing that by putting wider tires ont he front as well.

bigger wheels (HEAVY WHEELS) will make handling worse. size is less important than weight.

thats why most open-air cars/proto cars run ~18" or larger wheels.


OP:
if you're using the 2IS fronts then yes, there shouldnt be a problem. as long as the offset is conservative it most likely wont be an issue. worst case i would think is a light light fender roll but i doubt you're going to need it.
no incorrect
completely and utterly
If you put a 245/40 on a 17x8 vs a 225/40 on a 17x8 in the front of your car, i GUARANTEE you there will be a better handling on teh 225/40. Less sidewall flex as your turning in will create a crisper, faster turn in than the 245.

While i may not know much about LS, wheel and tires adn suspension are something i know quite a bit about.
Old 12-09-07, 12:27 PM
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Originally Posted by blkstealthpaid4
I am not sure what I had on the other Lexus when I sold it.I may have had 245/35/20 all round and not 245/45/20.
I am curious about the 255/35/20 for the front.It cost much more when they have to order rims for this car without having it on the shelves.This is something I have to deal with.Big calipers...ouch!!
what do big calipers have to do with anything? yous hould be ordering wheels anyways if your smart!
always better to order than buy off the shelf, you can get exactly what you want!
Old 12-10-07, 04:05 AM
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Originally Posted by Balling
no incorrect
completely and utterly
If you put a 245/40 on a 17x8 vs a 225/40 on a 17x8 in the front of your car, i GUARANTEE you there will be a better handling on teh 225/40. Less sidewall flex as your turning in will create a crisper, faster turn in than the 245.

While i may not know much about LS, wheel and tires adn suspension are something i know quite a bit about.
do you really think the tiny bit of difference in sidewall height between a 225 40 and a 245 40 is going to make that much difference? it' s not.

there's a 8 mm difference in sidewall height. anyway, he's talking about a 255. if he uses a 255 35 like i recommended, it will actually be less than 1mm SHORTER in sidewall height than a 225 40. going by your theory of sidewall flex, he'd be better off running the 255 35.


that's not going to chance the characteristics of turn in that dramatically. a 245 will also be more gradual in it's loss of adhesion and will give more warning before it breaks loose.
there is also more to handling that turn in. what about contact patch? a 245 will stick to the road a lot more than a 225.
Old 12-10-07, 04:07 AM
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Originally Posted by blkstealthpaid4
I am not sure what I had on the other Lexus when I sold it.I may have had 245/35/20 all round and not 245/45/20.
I am curious about the 255/35/20 for the front.It cost much more when they have to order rims for this car without having it on the shelves.This is something I have to deal with.Big calipers...ouch!!
with your calipers, there won't be much available on the shelf that will work.
i'd look for specific wheel specs that DO work with your calipers and try to find something online.
Old 12-10-07, 04:17 AM
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Originally Posted by 19psi
do you really think the tiny bit of difference in sidewall height between a 225 40 and a 245 40 is going to make that much difference? it' s not.

there's a 8 mm difference in sidewall height. anyway, he's talking about a 255. if he uses a 255 35 like i recommended, it will actually be less than 1mm SHORTER in sidewall height than a 225 40. going by your theory of sidewall flex, he'd be better off running the 255 35.


that's not going to chance the characteristics of turn in that dramatically. a 245 will also be more gradual in it's loss of adhesion and will give more warning before it breaks loose.
there is also more to handling that turn in. what about contact patch? a 245 will stick to the road a lot more than a 225.
its not the sidewall height
you do realize, that with a 225/40 vs a 255./35 the tire will be slightly stretched, adding to to the reduction of sidewall flex correct?
yes it will.

and contact patch isnt everything, if you have a full contact patch with a crappy tire, or a slightly less due to a mild stretch, with a NICE tire, you will have better handling with the less wide tire

im telling you man, race teams do it, drifters do it, I do it. I know it works, ive gone through a CRAP ton of tire combinations. believe me...you will be able to tell if you know what youre feeling for

maybe i should put my entire mod list in my sig....so you take me seriously?
Old 12-10-07, 05:50 AM
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Originally Posted by Balling
its not the sidewall height
you do realize, that with a 225/40 vs a 255./35 the tire will be slightly stretched, adding to to the reduction of sidewall flex correct?
yes it will.

and contact patch isnt everything, if you have a full contact patch with a crappy tire, or a slightly less due to a mild stretch, with a NICE tire, you will have better handling with the less wide tire

im telling you man, race teams do it, drifters do it, I do it. I know it works, ive gone through a CRAP ton of tire combinations. believe me...you will be able to tell if you know what youre feeling for

maybe i should put my entire mod list in my sig....so you take me seriously?
he didn't say anything about a crappy tire or nice tire, we have no idea what kind of tire he's going to use. if he buys a good quality 255 tire, it's going to stick better than any 225 tire.
yes i know about stretching and it's effects on driveability, i have 225's on 9" front wheels. a 225 is barely a stretch on an 8" anyway, hell it barely looks stretched on my 9's.

besides, he's not going for performance, he's running 20's for god's sake! he asked if a 255 will work because he wants a good looking wide tire. the answer is yes; a 255 will work.
Old 12-10-07, 10:07 AM
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Default Never 225

I wouldn't even go for a 225 in the front for an LS.I am trying to fill up the wheel well if I can and not see any space there.I even tried going 21 but that seems hard.I am sticking with 255 and nothing else.Which site can I order some rims that are made for the 2 gen LS without settling for the universal?I am not also doing the 3 piece.Can I lso get some recommendations?
Old 12-10-07, 11:36 AM
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here you go to start.
http://www.tirerack.com/wheels/resul...ar=&sort=Brand

i'd go for these:


there are more choices out there too, you just have to look.
Old 12-10-07, 11:37 AM
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if you want to fill up the gap, lower the car. you can't fill the gap just with wheel and tire or you'll end up lifting the car higher off the ground than stock and it will look like a 4x4.
Old 12-10-07, 12:42 PM
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yeah, tires arent the way to fill up the gap no matter what.


ANd For what its worth, i have 225 in the front of my Celsior :P


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