275/35/19 Rear - 245/40/19 Front Upgrade Tire Sizes for Stock 19's = Car Slower?
03-10-2012, 11:28 AM
#16
I was wondering if changing the stock size tires for the factory 19's from 245/40/10 & 225/45/19 to 275/35/19 & 245/40/19 would cause a decrease (even just slightly) in the performance of the car.
I know when you upgrade your wheels plus one to a heavier wheel, the higher rotational mass will cause your car to work harder with the added weight/mass, and since the larger tire sizes above would add weight, would performance suffer as a result?
I just bought my g coupe and coming from an IS350, the the car is already slower, so I didn't want to negatively affect the performance of the vehicle in any way, even if it is just slightly. Which is probably in estimation the affect it would have on the car.
What do you think? Those that have upgraded to meatier tires on the stock wheels, have you noticed any decrease of performance? Preferably hard proof like track times before and after?
I know when you upgrade your wheels plus one to a heavier wheel, the higher rotational mass will cause your car to work harder with the added weight/mass, and since the larger tire sizes above would add weight, would performance suffer as a result?
I just bought my g coupe and coming from an IS350, the the car is already slower, so I didn't want to negatively affect the performance of the vehicle in any way, even if it is just slightly. Which is probably in estimation the affect it would have on the car.
What do you think? Those that have upgraded to meatier tires on the stock wheels, have you noticed any decrease of performance? Preferably hard proof like track times before and after?
10 oz per tire, I dont think that would negatively affect performance!!
.
03-10-2012, 11:43 AM
#17
03-10-2012, 11:47 AM
#18
With our Gs you wont notice much of a difference. HOWEVER if you want more power to the ground get a fully forged wheel. they will be a lot lighter then stock and will make you G faster. Its called unsprung weight. Rule of thumb, every pound lost from your wheels is like taking 10 pounds off your car. Also every 10 pounds off your car is equivlent to 1 hp power difference. Most forged wheels are around 5-8 lbs lightier then stock. Our cars being rwd thats a total of 10-16 or 100-160 lbs from your car. Thats a pretty substantial power increase. So go forged, they are definitly worth the extra $$$.
03-10-2012, 11:53 AM
#20
I was wondering if changing the stock size tires for the factory 19's from 245/40/10 & 225/45/19 to 275/35/19 & 245/40/19 would cause a decrease (even just slightly) in the performance of the car.
I know when you upgrade your wheels plus one to a heavier wheel, the higher rotational mass will cause your car to work harder with the added weight/mass, and since the larger tire sizes above would add weight, would performance suffer as a result?
I just bought my g coupe and coming from an IS350, the the car is already slower, so I didn't want to negatively affect the performance of the vehicle in any way, even if it is just slightly. Which is probably in estimation the affect it would have on the car.
What do you think? Those that have upgraded to meatier tires on the stock wheels, have you noticed any decrease of performance? Preferably hard proof like track times before and after?
I know when you upgrade your wheels plus one to a heavier wheel, the higher rotational mass will cause your car to work harder with the added weight/mass, and since the larger tire sizes above would add weight, would performance suffer as a result?
I just bought my g coupe and coming from an IS350, the the car is already slower, so I didn't want to negatively affect the performance of the vehicle in any way, even if it is just slightly. Which is probably in estimation the affect it would have on the car.
What do you think? Those that have upgraded to meatier tires on the stock wheels, have you noticed any decrease of performance? Preferably hard proof like track times before and after?
03-10-2012, 01:07 PM
#21
I told you from my personal experience that it's not going to make any difference. So did another member. Dozens have made the change. Most are probably ignoring your thread because of your confrontational and rude demeanor. You have your answer and this thread will now be closed because at this point it will only spiral downward.
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