bigsupra Posted August 21, 2010 Share Posted August 21, 2010 18x8.5 = 12.20 18x9.5 = about 13kg stock 16" supra non-turbo wheel weight: 16x8 = 7.89kg 16x9 = 9.07kg I have a 1994 j-spec non-turbo, so does it being heaver really matter that much ? Quote Link to comment Share on other sites More sharing options...
Havard Posted August 21, 2010 Share Posted August 21, 2010 On an NA......no..!! I am not sure if this puts more wear and tear on wheel bearings but most cars have aftermarket wheels without any noticable advancement in bearing wear. H. Quote Link to comment Share on other sites More sharing options...
bigsupra Posted August 21, 2010 Author Share Posted August 21, 2010 I have no idea what you're talking about lol ^ I'm just basically asking will the weight really affect the mileage or performance that much. My frien has 19" stern st8 rims on his supra and they weigh about 35 pounds each, and he said he didn't notice any change in mileage or performance. I'm just asking for curiosity. Quote Link to comment Share on other sites More sharing options...
Purity14 Posted August 21, 2010 Share Posted August 21, 2010 I have no idea what you're talking about lol ^ I'm just basically asking will the weight really affect the mileage or performance that much. My frien has 19" stern st8 rims on his supra and they weigh about 35 pounds each, and he said he didn't notice any change in mileage ? or performance. I'm just asking for curiosity. If you replace your wheels for heavier ones you need to roll your odometer back because your milage will be out. Also, if your odometer is out and your need to change your alloys for heavier ones, you will have to roll your car backwards before fitting them. Worst of all, if your wheels is out and your odometer needs to be replaced for a heavier one, you will need to roll the car over yourself before fitting them or else your tracking will be out. Quote Link to comment Share on other sites More sharing options...
JustGav Posted August 21, 2010 Share Posted August 21, 2010 If you replace your wheels for heavier ones you need to roll your odometer back because your milage will be out. Also, if your odometer is out and your need to change your alloys for heavier ones, you will have to roll your car backwards before fitting them. Worst of all, if your wheels is out and your odometer needs to be replaced for a heavier one, you will need to roll the car over yourself before fitting them or else your tracking will be out. What?? A heavier allow with the same rolling radius won't make any difference.... Ooooh... wait Quote Link to comment Share on other sites More sharing options...
bigsupra Posted August 22, 2010 Author Share Posted August 22, 2010 not the first time I've gotten tires for cars, I have an RX7 and went through three rims on that car. and interms of mileage I ment the gas consumption. different cars react in different ways to different wheel weights. I've talked to several MKIV owners with heavy wheels and they've said they haven't noticed much of a difference, maybe just a difference in ride feel obviously. Quote Link to comment Share on other sites More sharing options...
David Reid Posted August 22, 2010 Share Posted August 22, 2010 It more the rolling resistance which is important for fuel economy, this prportional to tyre width (your going wider so fuel economy will get worse). I soupy you will be able to notice any effect due to "weight" of the wheels Quote Link to comment Share on other sites More sharing options...
madwoody1 Posted August 22, 2010 Share Posted August 22, 2010 heavier the wheel the slower it accelerates or the more power you need to make the heavier wheel to move the same or something like that also if anyone wants to know 225/50/16 standard 16" wheel front = 17.75kg with tyre 245/50/16 standard 16" wheel rear = 20.00kg with tyre 235/45/17 standard 17" lexus wheels 5 spoke = 19.25kg with tyre was bored at work the other day so weighed the standard wheels before i took the tyres off and sent them to the scrap man Quote Link to comment Share on other sites More sharing options...
David Reid Posted August 22, 2010 Share Posted August 22, 2010 heavier the wheel the slower it accelerates or the more power you need to make the heavier wheel to move the same or something like that also if anyone wants to know 225/50/16 standard 16" wheel front = 17.75kg with tyre 245/50/16 standard 16" wheel rear = 20.00kg with tyre 235/45/17 standard 17" lexus wheels 5 spoke = 19.25kg with tyre was bored at work the other day so weighed the standard wheels before i took the tyres off and sent them to the scrap man But in real life peformance it will make no difference. You would see far more effect removing 0.5kg from the flywheel. Quote Link to comment Share on other sites More sharing options...
Guest initial_j Posted August 22, 2010 Share Posted August 22, 2010 youll be fine. sounds like your thinking waaaaaaay too much about it! you wont notice the difference. i mean, how many people actually run stock wheels? not many! Quote Link to comment Share on other sites More sharing options...
Chiefgroover Posted August 22, 2010 Share Posted August 22, 2010 16 kilos of rotating mass, will count for a small difference in performance and will work your brakes harder too. Quote Link to comment Share on other sites More sharing options...
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