Does your rear tires worn down fast?
01-09-02, 09:21 AM
#16
Lexus Champion
Thread Starter
Original tire size 225-55-16.
225 is the width of the tire: 225 mm
55 is the aspect ratio of the profile from the width: 0.55 X 225 mm = 123.75 mm
16 =16 in. X 25.4 = 406.4 mm
So, the over all dia. of the tire is: 406.4 + 2(123.75) = 653.9 mm
245-50-16 = 2(.50(245)) + 406.4 = 651.4mm
225-50-16 = 2(0.50(225)) + 406.4 = 225 + 406.4 = 631.4 mm
as you can see, the overall dia. of your tire is smaller than the original tire. The calibration (gear cable connected to the trans. was set up for the ratation of the tire). Your odometer has been counting faster than the actual miles driven.
Check with Steve Ganz 800-908-6968 (Carson Toyota) next time for cheaper OEM parts. Be carefful, they sometime gave off the wall price too. I just paid $260 for the right head light housing.
Between my two SC400s, I have replaced P/S pump, alternator, front brake rotors, brake sliding pins, pads, Main O2 sensors, power mirrors ECU, Brake master cylinder (was trying to figure out what wrong with the soft brake feel, turned out it wasn't the problem
)
225 is the width of the tire: 225 mm
55 is the aspect ratio of the profile from the width: 0.55 X 225 mm = 123.75 mm
16 =16 in. X 25.4 = 406.4 mm
So, the over all dia. of the tire is: 406.4 + 2(123.75) = 653.9 mm
245-50-16 = 2(.50(245)) + 406.4 = 651.4mm
225-50-16 = 2(0.50(225)) + 406.4 = 225 + 406.4 = 631.4 mm
as you can see, the overall dia. of your tire is smaller than the original tire. The calibration (gear cable connected to the trans. was set up for the ratation of the tire). Your odometer has been counting faster than the actual miles driven.
Check with Steve Ganz 800-908-6968 (Carson Toyota) next time for cheaper OEM parts. Be carefful, they sometime gave off the wall price too. I just paid $260 for the right head light housing.
Between my two SC400s, I have replaced P/S pump, alternator, front brake rotors, brake sliding pins, pads, Main O2 sensors, power mirrors ECU, Brake master cylinder (was trying to figure out what wrong with the soft brake feel, turned out it wasn't the problem
)
Originally posted by 928owner
VQT,
245/50 series? How will the width afect the diameter. If a 245/50 is the same as the 225/55's I will definetly get that size, but my understanding is the diameter is determined by the series number.
Actually, I live in Dana Point, only work in SD county. This is a great place to live though and I can see why you would want to come back.
BTW, I have also replaced the mirror computer, the heater valve, the alternator, the PS pump, headlights, and other $$ odds and ends which I believed should have not failed so quickly (at about 55k miles). You would expect better from a name which is supposed to be recongnized as Quality. Perhaps their definition of quality is differnt than mine.
VQT,
245/50 series? How will the width afect the diameter. If a 245/50 is the same as the 225/55's I will definetly get that size, but my understanding is the diameter is determined by the series number.
Actually, I live in Dana Point, only work in SD county. This is a great place to live though and I can see why you would want to come back.
BTW, I have also replaced the mirror computer, the heater valve, the alternator, the PS pump, headlights, and other $$ odds and ends which I believed should have not failed so quickly (at about 55k miles). You would expect better from a name which is supposed to be recongnized as Quality. Perhaps their definition of quality is differnt than mine.
01-09-02, 11:54 AM
#17
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VQT,
Thanks for the info.... it was the aspect ratio I was misunderstanding. Now have that "straightened out". Longo sounds like they "knew what they were doing" as more miles = more service for them... they didn't count on me doing most of the work.
I do have more stuff I replaced, but can't remember all of it. I will give Carson next shot at stuff, good tip. Parts on this car are more than the Porsche in most cases, and that pays for all that marble around the dealerships I'm sure.
Thanks Again!
B-
Thanks for the info.... it was the aspect ratio I was misunderstanding. Now have that "straightened out". Longo sounds like they "knew what they were doing" as more miles = more service for them... they didn't count on me doing most of the work.
I do have more stuff I replaced, but can't remember all of it. I will give Carson next shot at stuff, good tip. Parts on this car are more than the Porsche in most cases, and that pays for all that marble around the dealerships I'm sure.
Thanks Again!
B-
01-09-02, 01:16 PM
#18
Lexus Champion
Thread Starter
01-09-02, 01:20 PM
#19
Lexus Champion
Thread Starter
Re: Well.....
LX450,
You need to go for an alignment ASAP
You need to go for an alignment ASAP
Originally posted by Francis K
I got a LX450 and my front tires appear new and the rear ones almost need to be replaced! Maybe it has somthing to do with my horrible alignment, how I have to turn the wheel a 1/8th of the way to the left to go straight and it vibrates like a bed at a cheap motel above 70.
I got a LX450 and my front tires appear new and the rear ones almost need to be replaced! Maybe it has somthing to do with my horrible alignment, how I have to turn the wheel a 1/8th of the way to the left to go straight and it vibrates like a bed at a cheap motel above 70.
01-09-02, 03:32 PM
#21
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VQT,
PS, I need to replace a sub-sensor as the check engine light will come on sometimes after real hard acelerations, but I just remove and replacethe fuse under the hood for acouple of seconds, an the code clears for about a week. It became more prominent when I went to the cold air intake, and with the Purple Dragon, I tend to be a little more lead-footed on line take-off's.
I have the two set shop manual, so it helps identifiy the problems like pulling the codes. The schematics for the radios helped when I converted from the Premium system to the Nak.... had to re-route the sub-woofer cable from the discrete sub amp to the Nak integrated amp. Also needed to beef up the power cable to the amp. The Pioneer wring does not have enough current capability and will cause the amp to distort under load.
I hope the 245's will not be too wide for the GS rims I am using. I really like the info. on the Kuhmos on the Tire Rack site and will probably get them soon.
Take care & Thanks Again!
B-
PS, I need to replace a sub-sensor as the check engine light will come on sometimes after real hard acelerations, but I just remove and replacethe fuse under the hood for acouple of seconds, an the code clears for about a week. It became more prominent when I went to the cold air intake, and with the Purple Dragon, I tend to be a little more lead-footed on line take-off's.
I have the two set shop manual, so it helps identifiy the problems like pulling the codes. The schematics for the radios helped when I converted from the Premium system to the Nak.... had to re-route the sub-woofer cable from the discrete sub amp to the Nak integrated amp. Also needed to beef up the power cable to the amp. The Pioneer wring does not have enough current capability and will cause the amp to distort under load.
I hope the 245's will not be too wide for the GS rims I am using. I really like the info. on the Kuhmos on the Tire Rack site and will probably get them soon.
Take care & Thanks Again!
B-
01-10-02, 07:12 AM
#22
Lexus Champion
Thread Starter
[QUOTE]Originally posted by 928owner
[B]VQT,
1) I need to replace a sub-sensor as the check engine light will come on sometimes after real hard acelerations, but I just remove and replacethe fuse under the hood for acouple of seconds, an the code clears for about a week. It became more prominent when I went to the cold air intake, and with the Purple Dragon, I tend to be a little more lead-footed on line take-off's.
-- Follow the procedure on testing the Main O2 sensor and the trouble code procedure. You can tell from the test which sensor is faulty. I think my left one was bad, but my brother told me to replace both he said usually when one goes, the other will follow soon. I paid ~$124 each sensor, ~$250 total for two (OEM part). Some member here said he paid less than $40 each (Borsch I think) at a local auto part store (Autozone, pepboy...). If I knew this before, I would of go for the borsch instead of OEM.
2) I have the two set shop manual, so it helps identifiy the problems like pulling the codes. The schematics for the radios helped when I converted from the Premium system to the Nak.... had to re-route the sub-woofer cable from the discrete sub amp to the Nak integrated amp. Also needed to beef up the power cable to the amp. The Pioneer wring does not have enough current capability and will cause the amp to distort under load.
-- I have the manual and still don't understand the schematics:eek: so I order the electrical manual hoping that it will help. Haven't read it up yet
Will need your help for sure when I do any of this stereo stuff
3) I hope the 245's will not be too wide for the GS rims I am using. I really like the info. on the Kuhmos on the Tire Rack site and will probably get them soon.
-- If the GS rims are the same width or wider then you don't have any problem. 245-50-16 will bulge out a little more than the 225-55-16. It is not that bad I like it more than the 225 tires.
[B]VQT,
1) I need to replace a sub-sensor as the check engine light will come on sometimes after real hard acelerations, but I just remove and replacethe fuse under the hood for acouple of seconds, an the code clears for about a week. It became more prominent when I went to the cold air intake, and with the Purple Dragon, I tend to be a little more lead-footed on line take-off's.
-- Follow the procedure on testing the Main O2 sensor and the trouble code procedure. You can tell from the test which sensor is faulty. I think my left one was bad, but my brother told me to replace both he said usually when one goes, the other will follow soon. I paid ~$124 each sensor, ~$250 total for two (OEM part). Some member here said he paid less than $40 each (Borsch I think) at a local auto part store (Autozone, pepboy...). If I knew this before, I would of go for the borsch instead of OEM.
2) I have the two set shop manual, so it helps identifiy the problems like pulling the codes. The schematics for the radios helped when I converted from the Premium system to the Nak.... had to re-route the sub-woofer cable from the discrete sub amp to the Nak integrated amp. Also needed to beef up the power cable to the amp. The Pioneer wring does not have enough current capability and will cause the amp to distort under load.
-- I have the manual and still don't understand the schematics:eek: so I order the electrical manual hoping that it will help. Haven't read it up yet
Will need your help for sure when I do any of this stereo stuff3) I hope the 245's will not be too wide for the GS rims I am using. I really like the info. on the Kuhmos on the Tire Rack site and will probably get them soon.
-- If the GS rims are the same width or wider then you don't have any problem. 245-50-16 will bulge out a little more than the 225-55-16. It is not that bad I like it more than the 225 tires.
01-10-02, 05:43 PM
#24
I think there was a service bulletin regarding the rear toe-in;it should be less than 1/8",I think it was way more before,and some books may still reflect this.I'll set my rear toe as slight as possible(1/32")when the new tires go on.Some of the Supra guys set the rear to 0 toe,and that can be a pain if the car gets into a toe out situation,as it will handle kind of scary when a slight toe out is created.
This will affect tire wear.
This will affect tire wear.
Last edited by SCV8; 01-10-02 at 05:45 PM.
01-10-02, 05:58 PM
#25
Lexus Champion
Thread Starter
SCV8,
Can you find out exactly the service bulletin or make sure it is that setting the rear toe-in at less than 1/8".
Thank you so much for this information. I didn't think that Lexus could design a car that eat up expesive tires like that
Can you find out exactly the service bulletin or make sure it is that setting the rear toe-in at less than 1/8".
Thank you so much for this information. I didn't think that Lexus could design a car that eat up expesive tires like that
Originally posted by SCV8
I think there was a service bulletin regarding the rear toe-in;it should be less than 1/8",I think it was way more before,and some books may still reflect this.I'll set my rear toe as slight as possible(1/32")when the new tires go on.Some of the Supra guys set the rear to 0 toe,and that can be a pain if the car gets into a toe out situation,as it will handle kind of scary when a slight toe out is created.
This will affect tire wear.
I think there was a service bulletin regarding the rear toe-in;it should be less than 1/8",I think it was way more before,and some books may still reflect this.I'll set my rear toe as slight as possible(1/32")when the new tires go on.Some of the Supra guys set the rear to 0 toe,and that can be a pain if the car gets into a toe out situation,as it will handle kind of scary when a slight toe out is created.
This will affect tire wear.
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