Hi. I am in the mist to change from a 16inch rim to a 18inch rim for a Mitsubishi Triton 2.5. I heard from a rim dealer telling me that:

1. Once I changed to 18inch (tyre 285/60/18), my 4wd triton will not feel as powerful as when it is with the original 16inch (tyre 245/70/16) is this true!

2. 285/60/18 tyre will make tyre pop out, making the car look slightly ugly (not align with the body frame)

Pls share your opinion as I am undecided on the choices. I like ganas rim, but not if it's at the expense of sacrificing power..

The car is still powerful. It's just that it needed to more power to roll that bigass wheels. Unless if you get those lightweight rims.

Yup, bigger rim needs more power to spin it.

1. Yes, True, Bigger rim will reduce your acceleration and also ur accelerometer will not be that accurate by around 10-20%. but no worries, power still there. max speed still same. the term "not feel as powerful" shud not be used in this case. edit: rarely i see ppl floord their gas on the road to achieve max acceleration. for me acceleration does not come in concept of driving here. come to traffic lite have to stop also.

2. Depends on user. original width of ur tyre is 245 (stil inside body line). your wider tyre 285 will popout abit thus, when drive tru mud - expect mud on ur windows. advantage is ur cornering will be much more stable and rigid.

Conclusion: your car power will not be affected. only your acceleration. tq.

This post has been edited by xplodingplastix: Jan 25 2011, 05:06 PM

rim can lightweight but the bigger rubber is much heavier than 16"

don't think the stock tyres is any lighter than the new set that he's gonna change. unless if he goes for AT ot MT tyres.

Bigger rim means bigger rolling resistance. It needs more power to start moving.
Only your acceleration will be decreased a bit

Whoa,Triton got accelerometer??

Fren,

sure got ar....he is refering to speed meter in lay man term ler.....

Fuuu bro... Running 285? That's hell damn wide... Mine 265 front and back only.

Bigger rims / tyres cost slower acceleration and top speed..

Love ganas rim but don't want sacrifice power that much? Get a tuning kit from me

link

if you try the calculator using the measurements that u gave, the diameter difference will be 6.24%

slower pickup but the rest all same + better handling and cornering.

245/70/16 = 265/55/18 same height but wider(better traction).

its called speedometer...

accelerometer is for measuring acceleration.
its odometer.
speedometer is for speed.

Hi. I see. From all the replies i can summarize that:


Pros
1. Ganas beautiful 18' rims
2. Better cornering and stability with 285/60/18 or 265/60/18 low profile tyres

Cons
1. While max power remains the same, the acceleration decreases (by 10~20%?) << Really potong stim!
2. Accelerometer inaccurate by 10~20% (In highway 100kmph would actually roughly be 110kmph)
3. Brake efficiency will be affected slightly.

This post has been edited by Poodlepaddly: Jan 26 2011, 06:37 AM

my uncle using 22"..n lowered sumore..
and my dad change 18" not lowered but nice..

Change to a performance air filter, reflash ur ecu, change ur exhaust manifolds system, should give u extra power =D

Bro, we are talking about diesel la... Performance air filter doesn't give much improvement (or shall i say u can hardly feel the difference). Reflash ECU only when u get into serious mod on diesel engine. Diesel engine are not the same with petrol engine.. No extractor or exhaust manifold
Diesel = EGR > Turbo > Outlet (Waste gas) Go for High Flow / Free Flow filter when your truck is chipped, that only help because the tuning kit will remap the mass air flow to allow more air sucking, fuel mapping to let the commonrail inject more diesel. There's huge difference after chipping your turbodiesel. That's why chipped turbodiesel tends to smoke alot. Smoke alot in diesel = fuel and air is enough.



This post has been edited by victor87: Jan 25 2011, 08:42 PM

one more thing very important....18" tyre price is sky high