Celica Forums General Discussion Exterior do 18"s slow down your car

I already got 17"s. The entire wheel size is the exact same as the factory wheels - so, it wont slow down my acceleration, and wont be harder on my brakes - however, if you get the correct 18" wheel tire combination, can you still maintain the over all factory wheel size? and if you can't does the extra inch or so worth of wheel make a big difference to braking/acceleration?

your thaughts please...

Hey I just got 18"s on my car wheel size exactly as factory wheels and I don't feel much. Except it felt a little heavier taking off and I quess I can feel more bumps but thats because there is less tire. I think what might affect it a little is the abs other then that your good to go.

i just got some tires 225/40/18 for 18" rims(rims arent here yet) and i put them up next to my gts rims 205/50/16 and the 18", and theres barely a difference between the two (i know thats not a very accurate comparison, but it gives me an idea). it would also depend on the type/weight of the rim you get (e.g. an 18lb 18" rim vs. a 25lb 18" rim). i was going to get 18" falken torque 5's (24lbs each ) but decided to get 18" 5zigen fno1r-c's (18lbs each ). dont know the dif between cast and forged though...i think forged wheels are lighter but im not sure...

just make sure the weight and the overall size are the same ( or very close) more weight = more rotational mass = harder to stop. 7 lbs a wheel might not be much but remember you have 4 of em.

how much do stock wheels weigh

yeah they slow it down a lot

no matter what it will slow you down. any 18" wheel will weigh more than the stock 16" wheels on the celica. Furthermore, just beacause it is the same overal size doesn't meen jack. Take physics! With 18" wheels it puts more of the weight on the outside of the wheels. More weight on the outside takes more work to spin then if it were in the inside of the wheel. I tried to explain that in the simplest terms possible...

when you guys say this:
The entire wheel size is the exact same as the factory wheels

wut do you mean by it?
how can a 17" wheel be the same size as the 16? can you gimme an example?
i got 17" chrome and damn that thing slows me down like crazy, i had another gts with 15" and that thing flew.

you take into account the 17 inch wheel with a 35 series or 40 series profile

or a 16 inch with a 45 or 50 series sidewall and it is about the same overall diameter...

18's will slow down your car 0-60, because of weight and size...

if you get some forged lightweight rims it wont be as noticeable...

Yeah what about forged rims? I'm under the impression that they are stronger and lighter. If i would get 18" forged with 35 or 40 series tire would i notice much of a difference?

It would have to be about 16lbs for you not to notice a difference. Good luck finding one that light!

BTW i have an extra factory 16" GTS wheel...i just weighed it and on my scale i got 18.0lbs. When i was looking around at some forged 18" i found some that were ~18lbs...so i'm thinking maybe with a lower profile tire, the tire itself would weigh less...assuming you can keep the overall outside diameter the same as stock...

the larger tire with a lower profile will weigh more- i check edgeracing.com- they list weights of tires. and i did take physics. i know the rotational mass is further from the center and will take more power to turn yada yada yada. and yes ive done that "experiment" where you sit on a spinning chair with weights and hold them out then pull them in to your chest. i still think a six pound dif in the weight of the wheel itself would make a difference though, wouldnt you, being part of the mass that is to be rotated?

Yeah, I knew that to - thats part of the reason I chose the wheels I did - because they have less material on the outside edge of the wheel, and that means less rotating mass..

18 or 19" tires on a new celica are old school, a waste of money unless you have money, and no matter how you justify it won't perform better than a 16 or 17" wheel and tire combo and that same 16 or 17 wheel and tire combo can not only get you better results for drag/track, but will cost you less/and weigh less for better tires and wheels.
This is including the looking good factor also.
The only 18's or above I can think of to prove me wrong are the Volk's TE/37 in magnesium blue that I would never race in anyways.

it depends on what rims you get. some are lighter then others. you can do a search for wheel weights to determine the weight of the wheels your looking at. you can also get lightweight lug nuts to help offset the increase in weight.

I think if it heavy then yes but if it 18 and light then no

how about 225/40/18 ..will this slow the car alot?