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Help with buggy attitude while jumping

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Help with buggy attitude while jumping

Old 07-25-2020, 11:29 AM
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Default Help with buggy attitude while jumping

Hello, I am having an issue where my ebuggy is jumping with a nose high attitude and I constantly have to apply brakes mid air to get the nose to come down. Iím not sure what adjustments I should look at to correct it. Iím looking for suggestions of what to try.

If it matters, I am running an EB48.4. I have had another much better driver run the buggy and he had the same issue, so I donít think it is all driver induced!

Thanks in advance!
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Old 07-25-2020, 11:35 AM
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go with a harder spring in all 4 shocks
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Old 07-26-2020, 06:30 AM
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What is your current setup..
shock weight/cst front and rear
shock position front and rear, arm and tower
Shock spring rate and preload position.
Full droop?
camberlink high or low, long or short?
Camber negative Or positive?

Diff fluid front, center, and rear.

Front kickup angle, rear anti squat.

What seems to help with jumps is shock position and spring rate. Unloading to the rear also helps with thicker fluid in the center and front, it all depends where you are at for setup now either a small amount of change or a reset like I had to do from mid-high bite track to low bite loose track.
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Old 07-26-2020, 07:22 AM
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What's your ride height?

If the front is higher than the rear, then trying leveling out both so they are the same ride height.

Can you adjust the position of the battery? If so, then try moving it forward, or add 20g of weight in front of the battery after adjusting ride height and springs, a softer rear spring can also help, but careful going too soft and you'll quickly run into nose dive issues
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Old 07-29-2020, 12:49 PM
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Originally Posted by Juglenaut View Post
What is your current setup..
shock weight/cst front and rear
shock position front and rear, arm and tower
Shock spring rate and preload position.
Full droop?
camberlink high or low, long or short?
Camber negative Or positive?

Diff fluid front, center, and rear.

Front kickup angle, rear anti squat.

What seems to help with jumps is shock position and spring rate. Unloading to the rear also helps with thicker fluid in the center and front, it all depends where you are at for setup now either a small amount of change or a reset like I had to do from mid-high bite track to low bite loose track.
The Front shocks are 550 wt oil with the stock piston, which I think is a 4x1.9. They are in the 2nd hole from the inside on the top and the inside hole on the arm. Grey spring
Rear are 450 with 4x1.9, in the inner most hole on top and outer whole on the bottom.

Front ride height is 24mm, rear is 26mm. Droop is fairly limited in the front at about 15mm over ride height, rear is full droop.

Camber links in front are in the shortest setting and the top outer hole on the tower. Rear is also shortest setting with the link in the center outer position on the tower.

I am running -2 degrees of camber all around.

Front dif is 12.5k, center is 10k and rear is 7k.

Rear antisquat is 2 degrees. Front kick up is 12 degrees.

Thanks for the help guys!
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Old 07-29-2020, 01:47 PM
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Originally Posted by 0010 View Post
The Front shocks are 550 wt oil with the stock piston, which I think is a 4x1.9. They are in the 2nd hole from the inside on the top and the inside hole on the arm. Grey spring
Rear are 450 with 4x1.9, in the inner most hole on top and outer whole on the bottom.
Move rear shock on tower to second to outside and inside on the arm.


Originally Posted by 0010 View Post
Camber links in front are in the shortest setting and the top outer hole on the tower. Rear is also shortest setting with the link in the center outer position on the tower.
Drop the front link to center on the tower.

The choice on shock oil cst/wt is a little on the stiff side. I use that cst setup depending on bite. However I am currently setup similar to Dakota Phend at silver state 2017. I would go one step lighter on both front and rear to (450-475cst) 35-37.5 in the front and (375-400cst) 30-32.5wt in the rear.

What rate springs you got in the rear.?

Check your drag break setting, if not enough in the air or extended throttle after the front nose leaves the crest of the jump the nose will lift off like a plane.

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Old 07-29-2020, 01:57 PM
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Visiting the tekno forum it seems drivers like FCR.. 7,10,5k, or 7k,5-7k,3-5k
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Old 07-29-2020, 02:44 PM
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Originally Posted by 0010 View Post
Hello, I am having an issue where my ebuggy is jumping with a nose high attitude and I constantly have to apply brakes mid air to get the nose to come down. Iím not sure what adjustments I should look at to correct it. Iím looking for suggestions of what to try.

If it matters, I am running an EB48.4. I have had another much better driver run the buggy and he had the same issue, so I donít think it is all driver induced!

Thanks in advance!
Does it do this off every jump or only certain jumps? Typically, when a car goes hard nose up or nose down off a jump it is because one end of the chassis hit the ground on the way off the jump. If your car is going nose up, the front suspension is too soft.

Originally Posted by Juglenaut View Post

Drop the front link to center on the tower.
How is a change in roll center supposed to help jumping?
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Old 07-29-2020, 03:57 PM
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Front end overall aggressiveness.

Usually raise it for high bite drop it for mid to low bite.
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Old 07-29-2020, 04:04 PM
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A grey EB48 Tekno spring is soft at 3.34lb/in.. if indeed using Tekno springs.
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Old 07-29-2020, 04:08 PM
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I am currently at TLR evo yellow 4.7lb/in. Red evo springs on the rear
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Old 07-29-2020, 05:34 PM
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Originally Posted by Juglenaut View Post
Front end overall aggressiveness.

Usually raise it for high bite drop it for mid to low bite.
Roll center only changes how the car corners. It is kinda like dampening for chassis roll. It changes nothing for how the car jumps.

Raise the link for high bite or raise the roll center?
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Old 07-29-2020, 05:56 PM
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You can line up how ever youíd like my sir.
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Old 07-29-2020, 06:10 PM
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Wording is key here I meant to say for high bite as in track is slippery.. apologies
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Old 07-29-2020, 08:13 PM
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Originally Posted by waitwhat View Post
Does it do this off every jump or only certain jumps? Typically, when a car goes hard nose up or nose down off a jump it is because one end of the chassis hit the ground on the way off the jump. If your car is going nose up, the front suspension is too soft.
It mainly only does it on longer/higher jumps. It seems like if I have to hit the jump hard, thatís when it goes nose high. On the jumps where you have to really take it slow, like rhythm doubles, it seems to take a nice arc in the air. So, is this indicating that it is rebounding too fast, or the spring is too soft, or...?

thanks for the help guys!
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