My club is hosting a truck show in Omaha, NE on May 18th and want to use some RTI scores to help with the judging. Who knows the formula? Share...

You've got to be kidding me. :rolleyes:

Dallas

Not only is their a search feature for this bulletin board their are a few different search feature options for the whole internet.

Might want to try one of them:flipoff2:

You can use a 5,12,13....5 high,12 long across the ground and 13 long where you'll put the tire...Just figure out the hieght, divide it by 5 then multiply it by the other numbers to get the lengths...
You can also use a 3,4,5 triangle.

Originally posted by kyle
You can use a 5,12,13....5 high,12 long across the ground and 13 long where you'll put the tire...Just figure out the hieght, divide it by 5 then multiply it by the other numbers to get the lengths...
You can also use a 3,4,5 triangle.

I never claimed to be any good at math, but I can hardly believe that you even believe this, much less are confident enough to share it with others. :smokin: :smokin: :confused:
That's sad, really it is.

Now, about the stupid poser ramp truck score thingy, I think it is Cos(30)x(distance traveled on the surface of the ramp)/wheelbase. Multiply the final by 1000. I am not positive, but this makes the most sense to me. I know the 5-12-13, and 3-4-5 stuff is crazy though.

the formula is simple. the farther you drive up the ramp the more :rainbow: you are. :flipoff2:

Originally posted by kyle
You can also use a 3,4,5 triangle.

well Mr. Pythagorus, that would give you a 45°, or a 90°

Originally posted by BornInAJeep


well Mr. Pythagorus, that would give you a 45°, or a 90°

Pick up a geometry book at the local Jr. High...You might learn something :rolleyes:

So if my Daily driver ramps better than your trail rig are you buying the :beer: ? :flipoff2:

Here's the info your are looking for:

http://www.southernhighrollers.com/tech/articles/rti_with_or_without_a_ramp.htm
or here: http://katy.tx4x4.org/tech/rtirampinfo.htm

Originally posted by twistedmetal
My club is hosting a truck show in Omaha, NE on May 18th and want to use some RTI scores to help with the judging. Who knows the formula? Share...

Thanks, Termy! I appreciate it.

Hey, Stinkbug? What's your problem? I noticed you didn't have anything useful to say, so why waste space? Go find some poop to play in, stinkbug.

Oh, and as far as the ramp thing being :rainbow: , that may be so. I never said that was what we were basing our entire descision on. Have you all forgotten that a ramp is a tool? There is only so much gnarly terrain to be found in a parking lot.
You are all arguing with each other about who is smarter, but you haven't figured that much out? Get off my thread, geniuses.

Originally posted by YellowCJ


I never claimed to be any good at math, but I can hardly believe that you even believe this, much less are confident enough to share it with others. :smokin: :smokin: :confused:
That's sad, really it is.

Now, about the stupid poser ramp truck score thingy, I think it is Cos(30)x(distance traveled on the surface of the ramp)/wheelbase. Multiply the final by 1000. I am not positive, but this makes the most sense to me. I know the 5-12-13, and 3-4-5 stuff is crazy though.

5-12-13 and 3-4-5 make a 30*-60*-90* triangle...As long as you use one of those ratios the ramp will be 30*...

What we have here...is a failure to comunicate!

I KNOW how to build the ramp. I am on my 4th one, right now. They are all nice, pull behind ramps for a few of the locals. What I WANTED was the "legitimate" scoring procedure, which Terminator had my back on. And, yeah, bring on the DD, beer's on me! :D

Originally posted by kyle


5-12-13 and 3-4-5 make a 30*-60*-90* triangle...As long as you use one of those ratios the ramp will be 30*...

hehehe..., this is fun. Assuming I want 42" vertical, divide that by 5, multiply by 12 and 13. That gives me dimensions of 42x100.8x109.2. Quick little checking of the answers using the back-up 3-4-5 equation yields the dimensions of 42x56x70. How can it be that 2 entirely unrelated ratios give different relationships? Hmmm...., Maybe we should use Goemetry, like that found in those Jr. High books. Using the 5-12-13 triangle, we get a ramp angle of 22.6*, but the 3-4-5 has a ramp angle of 36.8*. Again, I wonder, how can you believe this, or feel confident enough to pass it on to others. Twistedmetal, sorry for stepping onto your precious bandwidth, but I was really trying to help at first.

Damn now I gotta show up. Never miss free :beer: :D It's the Sherminator now. LOL The real question is: To wax or not to wax.

Originally posted by twistedmetal
What we have here...is a failure to comunicate!

I KNOW how to build the ramp. I am on my 4th one, right now. They are all nice, pull behind ramps for a few of the locals. What I WANTED was the "legitimate" scoring procedure, which Terminator had my back on. And, yeah, bring on the DD, beer's on me! :D

My bad :emb3: The ratio is 1, square root 3, 2...Other stuff was pythagreon triple bs....
again my bad....