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Help guess my RTI!

koldsimer

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After constant tweaking and fine tuning, I think I have my suspension working pretty well. Since I dont have an RTI ramp, I was wondering what I am ramping in these pics. Any ideas? The wall was probably 18-20* and the back wheel was 52 inches off the ground. Care to take a guess?

flex 014.jpg

flex 016.jpg

flex 017.jpg

flex 009.jpg
 
nice pics! No idea how high, but looks good, i'm going to have some of those later this month probably
 
what is your wheelbase? stock is 115 right? i figured you were a little longer, so with 117 your rti on a 20* ramp would be 1299
 
Thanks for all the input guys. I think the 1299 estimate is off.... I wish I had those kinds bragging rights. I would have guessed it was about 800-900 but I have no real idea. I wonder how much further I could have gone... the truck hit the building.
 
I'm also thinking that ledge was only about 15*, maybe less.
 
with the stock wheelbase of 106.5" and the tire 52" above the ground, the RTI is 1428 on a 20* ramp.

that is some awesome flex, what do you have for suspention?
 
big83chevy4x4 said:
that is some awesome flex, what do you have for suspention?

Thanks Man. I've got 6" BDS springs up front with a zero rate, shackle hanger moved forward, longer shackles (6.25") and furd shock towers with 14" shocks. In the back i have ord's flip (swapped sides) with 4" superlift 56'ers with the overload removed and 6" long shackles.
 
i didnt realize the wheel base was that short:D remember i got/ had a longbed. but yeah the 14XX was definetly right if you were 52" off the ground
 
Not being able to believe the RTI calculator on 4lo, I went back to the ramp with my angle finder and tape to get some measurements. My wheel was 51" off the ground. I pulled a straight line from the bottom of my wheel on a 20* plane. Total length was just over 148". This is within one inch of what it said my amount should be. So, am I to believe that my blazer is capable of 1300+ on an RTI?! Holly sheet if it's true!
 
txfireman110 said:
As long as you now two of the factors, ie: wheelbase, and how high one tire can go off the ground before any other tire loses contact, you can solve for RTI on this site!
http://www.offroaders.com/info/tech-corner/rti.htm
The calculator is near the middle of the page. Enter a degree for a "ramp", and it will give RTI for that particular Degree of slope.

That uses the same formula that 4lo uses. It also told me i was ramping 1350+! Does anybody have an idea what is the max rti they remember being put up by a leaf spring blazer?
 
Remember you're talking about a 1300 on a 20 degree ramp. It will be less on a 30 degree ramp. On a 30 degree ramp you're doing pretty much 1000 on the nose as far as I can calculate.
 
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