skyline26

i just switched from 16" to 18" ..and i notice that the car seems a little sluggish accelerating, seems as if the bigger tires requires more work for the car to move lol i went stock size of the SS to not throw off the speedo ..so is this normal?

slinger569

Yes, definitely requires more power to turn the bigger wheels..

SS fan

Better get an SS to turn them wheels.....

I really didn't notice any loss when I put the 18's on the panel. But mine was 17 to 18, smaller change.

skyline26

ya its really noticeable..wasnt expecting that much of a change

skyline26

18" SS rims with Michelin Pilot Sport A/S +
shes dirty and still needs to be lowered but its a start..hopefully new front fascia will be put on tomorrow

skyline26

starting to wonder if i should powder coat them gloss black or leave them

sleeper

Bigger rims weigh more, start out in "I" gear if you feel the need.

07azhhr

When the overall diameter of the tire is the same as before then the upsizing is not to blame for a loss of acceleration. Tread pattern can cause a loss of acceleration. Added weight of the rim and tire can also cause losses. On the flip side the tread design of a given tire can also give you better acceleration and if the new wheels are lighter then they too can give you better acceleration.

It sounds like either the tread pattern of the new tires or the weight of the wheels/tires or a combo of the two are causing your loss.

I can't imagine that the SS rims would be too much heavier then the stockers but they could and tires do vary in weight just like rims do to. Tread design will influence rotational friction and might be your cause. My 20's actually gave me better acceleration over my aftermarket 16's that cam with my car. The tread design was probably the biggest cause but even the over all weight of the 16's (with the tires on) were heavier then my 20's.

THE BATMAN

Looks nice .
Plasi-dip them and see if you like the change in color.

SpaceCowboy

When I put my 18s on from the stock 16s there is for sure a noticeable difference. The rims are bigger and wider so they weigh more and my fuel mileage suffered for sure. Tread design is important but does not weigh in as much rotational mass. I would be willing to bet anyone with a 2.2 or a 2.4 would post a slower 1/4 mile time going from a stock size (LS and LT) to a 20 inch tire.