Just put on my new wheels (DPE Variant S - 19x9 and 19x10). The car is accelerating ALOT slower and braking is ALOT harder(minor squeek). Seems like my car is struggling to brake and struggling to accelerate. The ride isnt bad, no shaking or handlng issues. What do I need to fix this problem? I know most of you are saying get rid of the wheels. ... I may have to. But I just had to see how the rest of you guys got around this problem and what you did to fix it. Do I need sway bars or something with the suspension? BTW I havent done any engine work, YET....
BTW... I have seen a previous thread abt this but no one offered a solution.

 

What size tires do you have on? If the overall diameter of the wheels are larger, then you decreased your gear reduction and thus makes it harder to brake and accelerate. Also, if they're wider, then you added rotational mass and that too will affect performance.

Gaining them back will require bigger brakes and more power.

 

I have 275-35 and 245-35, i believe... Also my offsets are a little off if that makes a difference

 

those size tires wont cause any problems,but what do the wheels weigh.if they are a lot heavier then stock theres your problem.

 

DPE wheels should be same weight as stock if I'm not mistaken.

Dude, you gotta post up some pics of those sweet azz wheels!

 

They are definately heavier than my stocks...

 

I will as soon as the weather clears up in NY. Its been raining for almost a week, here

 

Can I help braking by changing my rotors or pads? Currently I have stock rotors and pads. No Brembo. BBK is too expensive.

 

depending on where the majority of the weight is located on the new wheels vs the old wheels, it would def be a wise decision to upgrade the brakes for two reasons...

usually larger wheels, and lower profile tires give more weight.

larger brakes will obviously help stopping efficiency, and depending on the size of the brake rotor, a 2 piece can end up lowering overall rotating mass.


if possible, i;d weigh a stock one you had and then weigh a new one you have (wheel and tire) and then go from there.

not sure if you had 17 stock, but doing a plus 2 can do a definate change in performance.

 

So do I have to buy a BBK or can I just upgrade the pads and rotors(maybe slotted)... Any suggestions?

 

Any change in weight of rotational mass effects handling, braking, and power. More weight = more weight to rotate. Just like if you had 4 or 5 people in your car it'd be harder. Its even worse with wheels because of the number of rotations needed to go say so far, its an issue of inertia.

 

a pad and rotor upgrade can give decent results. for example in autoX many people just choose a different compound pad and a slightly thicker rotor over OEM stuff in most all cars...

however a larger brake upgrade will be more efficient.

choice is yours. obviously a pad a rotor change is the cheaper method if you would wanna try that initially... that might work, but over time you might feel the need to upgrade to a larger rotor and caliper.

 

its worth it considering how sick those wheels are

 

Thanx guys

 

Yeah rotating weight is a bitch.

I mountain bike a lot and the best place to save weight is in the wheels. Saving 1 pound in your wheels feels like you saved 3 puonds because it becomes so much easier to pedal.