What are you getting 0-60. stock and moded.
http://www.youtube.com/watch?v=iu_t1-3WxMc. bad quality i took it with my phone and there is a lag.
im hitting zero to sixty in the high 6's. anyone know how much time putting 17's on will knock off?

 

The benefit of running 17s is nothing, if you're using the same, fatory tire height.

The 20's vs 17's is only an elimination of some tire sidewall, replaced with more rim. The total, overall height comes out to be the same, (factory equipment) unless you put on smaller tires, to increase your "pull-out" ability, by reducing your gear ratio at the wheels.

Not sure what the weight difference is between the two, as the 20's have more rim, but the 17's are inherantly heavier tires, due to a heavier lug pattern... Eliminating rotating mass from the wheels will help you accelerate faster, as well as increase braking performance.....

 

ya u wont gain a thing changing tires unless u went to a 17" tire with low pro tires maybe.... do remember u are driving a truck, not a race car your not gonna have amazing times unless u do crazy **** like supercharge it or something like that

 

Ohhhh, You are in Sooo much trouble! HankL is gonnaget you.

 

Now that is funny...

 

My 0-60 at the track is 5.2 seconds.

Putting on 17's will drop quite a bit of time, depending on wheel and tire combo you can drop as much as .5 off your 1/4 mile time.

As a general rule of thumb 1 lb of rotating weight = 7 lbs of static weight.

With that being said my 20's weigh 92 lbs a piece while my 17's weigh 42 lbs a piece for a difference of 50 lbs per tire.

50lbs x 4 tires = 200 lbs

200 lbs of rotating mass = 1400 lbs of static weight.

That's like putting on 17's and driving around with an extra 1000 lbs in the bed of your truck.

Now that 1:7 ratio is a very generic number and not based off of any vehicle but it will give you an idea of how much changing out tires can help out.