235/55/17 on IS350?
10-14-10, 11:17 AM
#3
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Front to rear tire size why not the same??
I was wanting to find out if I could order a set of rear wheels/ tires to replace the fronts so I can rotate the tires and have the same size all the way around.
But from what your saying that will mess up the ABS and or Traction control?? I'm new to this please explain further.
Why/ how does it mess them up??
What else if anything will it mess up??
Last edited by shocker88; 10-14-10 at 11:18 AM. Reason: added more questions
10-14-10, 11:25 AM
#4
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You already have it figured out.
The Lexus engineers set up the ECU (computer), Traction Control, and ABS functioning based on the tire diameters. A vehicles suspension and handling capabilites is fine tuned by the wheels and tires. In other words, for these three things to function correctly and without sacrificing handling, you have to maintain at minimum, the 1/2" tire height stagger.
You can risk running the same size all the way around but this is not what the car was designed for.
Hope this helps.
The Lexus engineers set up the ECU (computer), Traction Control, and ABS functioning based on the tire diameters. A vehicles suspension and handling capabilites is fine tuned by the wheels and tires. In other words, for these three things to function correctly and without sacrificing handling, you have to maintain at minimum, the 1/2" tire height stagger.
You can risk running the same size all the way around but this is not what the car was designed for.
Hope this helps.
10-16-10, 07:57 PM
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You already have it figured out.
The Lexus engineers set up the ECU (computer), Traction Control, and ABS functioning based on the tire diameters. A vehicles suspension and handling capabilites is fine tuned by the wheels and tires. In other words, for these three things to function correctly and without sacrificing handling, you have to maintain at minimum, the 1/2" tire height stagger.
You can risk running the same size all the way around but this is not what the car was designed for.
Hope this helps.
The Lexus engineers set up the ECU (computer), Traction Control, and ABS functioning based on the tire diameters. A vehicles suspension and handling capabilites is fine tuned by the wheels and tires. In other words, for these three things to function correctly and without sacrificing handling, you have to maintain at minimum, the 1/2" tire height stagger.
You can risk running the same size all the way around but this is not what the car was designed for.
Hope this helps.
So now I'm curious what is the differences in the systems you mention from AWD to RWD that the tires are able to be the same size all the way around without issue? Other then AWD & RWD.
I still don't understand the reason or how the 1/2" difference in width from front to back will mess up the TCS or VDIM or what ever systems?
10-18-10, 07:35 AM
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AWD is a completely different animal than RWD since AWD vehicles have power to all four wheels where RWD maintains power to the rear wheels only.
In order to not damge the transfer case, all AWD vehicles need to run the same tire size or diameter rather, front and rear. This means the ECU set up is different on AWD vehicles.
BTW - When did Lexus come out with an AWD IS350? I thought they only offered the IS250 in AWD?
In order to not damge the transfer case, all AWD vehicles need to run the same tire size or diameter rather, front and rear. This means the ECU set up is different on AWD vehicles.
BTW - When did Lexus come out with an AWD IS350? I thought they only offered the IS250 in AWD?
10-18-10, 07:51 AM
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AWD is a completely different animal than RWD since AWD vehicles have power to all four wheels where RWD maintains power to the rear wheels only.
In order to not damge the transfer case, all AWD vehicles need to run the same tire size or diameter rather, front and rear. This means the ECU set up is different on AWD vehicles.
BTW - When did Lexus come out with an AWD IS350? I thought they only offered the IS250 in AWD?
In order to not damge the transfer case, all AWD vehicles need to run the same tire size or diameter rather, front and rear. This means the ECU set up is different on AWD vehicles.
BTW - When did Lexus come out with an AWD IS350? I thought they only offered the IS250 in AWD?
I ordered a Red 2011 IS350 RWD and am waiting for it to come in buy I found a about 3 red 2011 IS350 AWD cars available at different dealers I was thinking of switching to but decided I wanted the Parking assist for my wife more then the AWD here in the Southeast (NC) we don't get that much snow for me to justify the AWD maintenance costs and hump in the drivers foot well.
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