Wheel size and performance question.

[luvmonterey]

I want to replace my stock wheels (and tires) but am not sure what size to go with. I am thinking either 18's or 20's but am not sure which. I was set to go with 18's. but then I saw a very clean '98 the other day running 20's and it looked surprizingly good. Does anyone know how much 18's or 20's are going to hurt my low end torque? Is my X going to be totally dog slow from the line? I am running basically a stock OHV with a few mods. I am guessing that both the 18's and 20's are going to have a higher unsprung weight than my stock wheels/tires, but I don't know how performance is going to be affected. They guys at the tire store only whant to sell me a set, so I can't take anything they say seriously. Any input/advice would be appreciated....

 

[Heavymentill]

The more weight / bigger tire you get the harder it is to get going and stop.

 

[BryanB]

You would be taking an already underpowered vehicle and making it a total snail.
I took off my heavy chrome plated aluminum wheels in favor of some light weight forged Welds and I couldn't believe the difference. WAY more nimble and it gave the entire truck a much lighter feel.