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RC Basics: To Droop Or Not To Droop


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How high should your crawler stand depends on a lot of things. From your driving style and type of shocks you run to the type of terrain your taking your rig on. I run the Boom Racing Type-Gs, which comes stock with a multitude of set-up options. For the informative and select few, understanding your droop vs compression percentages can change your trucks crawling and trail handling ability. Droop and compression can be altered in many different ways from changing your shock mounting points, to different spring compression ratings, shock oil velocities and even quick adjusting shocks.

When it comes to explaining droop and compression percentages, droop or "sag" which its been called before, is the distance between your truck's natural ride height to its full shock reach. Your shock compression is the distance your truck travels from its natural stance or ride height to pushed down to bottoming out. Most 1/1 off-road magazines and top tough truck competitors will recommend running a 60-40 percent compression to droop ratio based upon their experience. But how can you find out what percentage your currently running? You must find out your full travel and droop distances. Once those numbers are achieved you divide your droop to your full travel to find your percentages. To find these numbers first find out your trucks extended measurement, place your truck on a flat level surface and lift your truck up to just before the wheels leave the ground. Then measure the distance between your chassis to the ground and record that number. I used a digital caliper on my truck. Then while on a level surface, let your truck sit at its natural sitting ride height and measure the distance from the same previous measuring point on the chassis to the ground. Again on a smooth surface press down on your truck to full compression and take a measurement from the same spot as before, chassis to the ground. Once this is complete you should have 3 sets of numbers, extended ride height, sitting ride height, and full compression. To find out your droop distance you minus your natural ride height measurement by the full extended measurement. On my Wraith, my truck's extended measurement was 4 inches, my ride height was 3.6 inches, which means my droop is .4 inches. To find out my full travel I measured my full compression to my extended ride height measurement. On my truck my extended ride height was 4 inches and full compression was 2.6 inches, which would make my travel distance 1.4 inches. This also shows us the actual shock compression which in my case was 1 inch. Now divide your droop to your travel.

So 0.4 divided by 1.4 equals 0.285, which would mean my droop is close to 29% and my compression is close to 71% (0.4 ÷ 1.4 = .285). So in my case and maybe yours, some adjustments had to be made to hit that perfect 60-40 balance. Some instant results of the 60-40% will be better traction, reduced roll-overs and steeper climbing for your rig.

Make sure you check out the Boom Racing shocks, whether they're Type I or Type Gs, as they both run droop setups incredibly well. Check out my YouTube Chanenl, Instagram, or Facebook Page!


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ByRC Trailblazr

Tags :RC Trailblazr, Droop setup, shocks, Type G, Boomerang Type G, RC Basics, Tutorials

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