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06-20-2016, 07:12 PM | #21 |
Newbie Join Date: May 2016 Location: Boiling Springs
Posts: 40
| Re: Bomber bounces from drop!? Im getting somewhere! I refilled the shocks and they rebound an 1/8". Put the wheels back on and did a drop test of 2ft. Bounces up but only 2 inches. Here's what I did. I put a stack of magazines in the chassis( a couple of lbs) and did a drop test again, and no bounce! So what's different? Without the magazines when I am holding the car and then rest on the ground, the shocks do not shrink in. With the couple extra lbs, holding the car then resting it on ground, the shocks shrink. The chassis moves a little closer to the ground level. I am guessing this is what you want. So the question is do I change my oil from 35 to 15 or lower, or do I change the springs to softer or both? I have proline mediums for bottom and greens for tops on the shocks.
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06-20-2016, 07:34 PM | #22 |
Rock Crawler Join Date: Aug 2015 Location: Big Island
Posts: 863
| Re: Bomber bounces from drop!?
Right now you're oversprung so change to softer springs first. You want the shocks to be at least slightly compressed when sitting level, how much really depends on your preference. Again, look at NitritedCarbide's video and you can see the body lift up before the wheels. A spring assortment is would be a good investment if you think you're going to keep these shocks.
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06-20-2016, 07:54 PM | #23 |
Newbie Join Date: May 2016 Location: Boiling Springs
Posts: 40
| Re: Bomber bounces from drop!?
I will buy some most definitely. So changing oil weight only affects rebound speed not actually adding or taking away resistance force.
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06-20-2016, 08:15 PM | #24 |
Rock Crawler Join Date: Aug 2015 Location: Big Island
Posts: 863
| Re: Bomber bounces from drop!?
Sounds like you've got the right idea. The springs support the weight of the car and allow the axle to travel up and down. Springs alone would continue to oscillate after each compression so shocks filled with oil are use to dampen that motion. Here's a YouTube video on how engineers first solved the problem of springs and shocks. I remember having watched this or something similar in my engineering dynamics class in college. It's old and corny but helped me better understand how the two work together. And no, it wasn't a new release at the time I was in college.
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06-20-2016, 09:00 PM | #25 |
Rock Crawler Join Date: Mar 2016 Location: HB
Posts: 946
| Re: Bomber bounces from drop!?
That's a great video.
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06-21-2016, 07:14 AM | #26 | |
Rock Stacker Join Date: Feb 2016 Location: Under Your Hood
Posts: 88
| Re: Bomber bounces from drop!? Quote:
Shocks are ProLine- Slash front, XL rear. Off the top of my head I dont remember the spring combo. Played around with different combinations until I got the droop that I was after. Oils are 17wt rear and 10wt in the front. At first I had 30wt all around, with the dual setup it was too much. My thinking was double the dampening capability so cut the wt in half basically. My rig is on the heavy side (atleast 9 pounds min.) lots of VP aluminum, 2-speed, brushless, beeftubes, mip driveshafts, etc etc etc. I am no longer running vented wheels (VP methods) I will do another drop vid with the current setup (with specs) soon as I find time to finish rebuilding my axles. | |
06-22-2016, 05:37 PM | #27 |
Newbie Join Date: May 2016 Location: Boiling Springs
Posts: 40
| Re: Bomber bounces from drop!?
Sounds good.
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Tags |
bounce, landing, shocks, suspension |
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