Lift/Weight/Spring Calculator?? Anyone??

[EDIT: Good points made below. Admins, feel free to delete.]

Wouldn't it be great if there was a calculator or a chart or something that could give me an idea of how much lift I'd end up with given X spring, X shock, and X added weight (say from bumper or skids)?!

Yeah, that'd be great.

Maybe some of the vendors could contribute! Even better!!

 

For instance, my 2011 TRD/OR has 100# of rock sliders.

I switched to 5100's at 1.75 on stock springs resulting in 1.5" of front lift.

I upgraded to TSB rear leaves and added .5". (They were used, so already "settled".)

But, I'm about to add about 60# of gear to the front. Soooo.... Will I lose a 1/2 inch? More? What if I add a 100# front bumper? What if I switch my springs to 884's... or 886's??? Nobody knows!

 

Your stock coils are 540lbs, so it takes that much weight to compress the 1”. So it’s pretty easy to calculate from there as you add weight.

 

Too many variables involved to be accurate.

 

Every vehicle and install is different..so there's that.

 

Fair enough.

When I was thinking about it, I was reminded of this height/weight image chart from ages ago: http://www.height-weight-chart.com/heightweight.html

How cool would it be to do something similar with lifts.

 

All the different combinations of armour, tires, wheels, lifts, etc. would be mindboggling to say the least.

 

Factoring in just the types of material each vendor uses for armor (bumper/sliders/skids) and taking into account weight, material used, steel, aluminum, thickness, gusseted, non-gusseted, etc etc there are hundreds of possibilities already.

Not to mention accessories such as winches, brands types, weight, cable winch line, synthetic line, light bars, dimensions, weight, material used, bracket styles, bracket materials bracket weights etc. Then you have wheels, alloy or steel, width, height etc and then tires such as rating (sidewall plys), sizes, and also PSI; you have almost a thousand possibilities there alone and you haven't even scratched the surface if you really want to go in depth with it..

 

Wheels and tires do not affect lift heights, unless you’re measuring from the ground and not hub to fender. I think this is less complicated than you guys think. If you know your spring rate and the additional weight you’re adding then you can figure approximate height or sag. I say approximate because it’s not going to be exact. But it should get you close enough to be able to figure out what you need to for say spacers to fine tune.

 

My referral to tires/wheels was under the assumption that some people might want to know ground clearance numbers with different tire/wheel combos if they were looking to get real granular with it..

 

So my thinking is that let’s say you have a 600lb coil spring. It takes 600lbs to compress that coil an inch. So add 150lbs to the front end and that coil should compress .25”. The only thing I don’t know about is whether that would be like a spacer and equal .5” lift, similar to how a .25” spacers gives you .5” actual lift. Also let’s say that 150lbs is a bumper, so that weight is spread out over the front end. Does this mean you would only use half that weight and the coil would compress an 1/8” because of 75lbs vs 150lbs.

 

I know I probably just proved more of your point @geekhouse23, but my point is that you could use the weight and spring rate to figure sag in the spring. This will give you approximate numbers to go by.

 

Yeah, but what I meant was just a general weight.

Yes. That.

But, as has been said, there are still a million different combinations of lift. Spacers. Spring weight/length. Adjustable shocks. Coil-overs with adjustable pressures. So yeah. It's a cool idea, but would be tough to chart out. I get that.