I have 22" Boss 313s on my truck. Just wondering how much a heavy wheel like this really affects performance, and does it affect performance enough for me to spend the money on lighter wheels?

 

I run with 22s on a daily and at the track and I'm sure they slow me down a little bit but for now there fine for me. I'm 4x4 so traction with them is not a prob for now and I think my truck makes enough torque to move them. I will eventually go to a smaller wheel so I can put some slicks all the way around when power goes up.

 

Depends on many factors. If you have gears to help offset them, how fast/slow you are, what mods you have.

I would say a fair guess not knowing anything about your truck is that you are probably loosing .3-.6 in the quarter mile.

There is no real solidification for this info but it is commonly agreed that 100 lbs. is about .1 in the 1/4. Also rotational weight is approximately 4 times more effective then static weight. So if you take 25 lbs. off each wheel/tire it has a good chance to effect your time by .4 total. Because it is like taking 400 lbs. off the truck. Again each situation is different and this isn't scientific data. Just a good rule of thumb to start with.

So if they save you .4 then similar mods will be cam or stall or custom tune, or a 50 shot of nitrous. Traction is a big factor to look at too because as your truck get's faster you will need traction and it is hard to get traction with a 22" tire.

 

my truck hooks better on a 275/45/20 than it did on the stockers, went 14.80s on the 20s with a 2.17 60', stockers i couldnt get it to 60' worth a ****(2.60ish) and went 15.30s @ 96

 

As far as mods go, the truck has full bolt ons and a dyno tune, and 4.10 gears. The truck is an rcsb as well.

 

I would think you would be on the high side since you are fairly powerful but fairly light. So the physical weight is a larger percentage of your total Weight. Still no science to solidify guesses. Also what engine do you have? 4.8 and the whole convo should change to an engine swap, of 5.3 or 6.0 them let's continue.

I would stall or cam before tires if you aren't having traction issues yet. Only downside is your will probably have traction issues after a cam or stall with current tires. Just like everything ups and downs and you have to choose the path.

 

All factors aside, on my truck, my 18x8.5" American racing wheels with 265/60 tires are .15 faster in the 1/8 mile than my 20x8" Centerline wheels with 285/50 tires.

 

The truck has a 5.3, and with the current mods and the wheels and tires it has now, it gets traction. The wheels were on the truck when I bought it, and they are like 47 lbs a piece without tires. I was thinking about picking up some stock steel wheels that are 22lbs each, so that would be like 112 lbs lighter, but I'm sure the tires for a 16inch wheel are going to be considerably heavier than a 22 inch tire, but I could be wrong.

 

Yea it will make a big difference. Half a second in the long run would be a conservative estimate I'd say.

 

If you get bias slicks and skinnies the tires are very light. You would be foolish to get stock steels. You can get stock aluminum for cheap in 16" and save more lbs per corner.

Black your data solidifies the info from above as it should be .3-.4 in a 1/4. I would guess the 18 vs the 20 allows for over twice the weigh as 16" vs 22" and that much more if you go bias 28" slicks. My 28x11.5-16 E.T. Streets are 24 lbs each according to MT Web site.