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Old 04-15-2007, 08:01 PM   #1
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Default Off-road buggy question

I just started off-road 1/8 buggy <was running all on-road> and I have a question on springs, and oil.
I have a Mugen MBX5 and when I jump the buggy over a triple, the nose of the buggy dips way down. Almost to where when I throttle up it will not raise the front back up enough to land correctly.
Do I need to change front/rear springs, and oil?
I have 40 wt/ in the front, and 35 wt/ in the rear with gray springs in front, and white in the rear.

appreciate the help
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Old 04-15-2007, 08:45 PM   #2
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when you say dips way down. Do you mean in the air, landing or on the face of the jump?
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Old 04-15-2007, 08:49 PM   #3
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Default Off road buggy

Sorry bout that,
After I take the jump, the front of the buggy will nose down while it is in the air.
I throttle it up, but the nose is so far down, the throttle will not raise the front of the buggy
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Old 04-15-2007, 08:50 PM   #4
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Could be a rear ride height issue. If the rear of the car is bottoming out on the face of the jump then it will 'kick' the rear of the car up like you describe. Raise the ride height a little and see how that goes.
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Old 04-15-2007, 08:51 PM   #5
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well, it can be 2 things..

1) Stiffen up the front.
2) The rear is bottoming out on the jump and throwing the rear up and nose down. In this case stiffen the rear.
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Old 04-15-2007, 09:36 PM   #6
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Default Off -road buggy

Thanks for the tips.
I will try these out and see how it does.


thanks again
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Old 04-18-2007, 03:06 AM   #7
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I had that problem once and found out my front wheel bearings were wasted. Once I let off the throttle, the bad bearings would slow the drive shafts down as if I was applying my brakes. It kinda had the effect of using drag brakes. I changed the wheel bearings, and the problem was solved. (Just something else you can check if it's not your ride height).
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Old 04-18-2007, 05:10 AM   #8
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Make sure you have no brake drag or any drag in the drive line first off. Sounds like the rear of your chassis could be slapping the ground as you take off. Try gray springs all around with Mugen 400wt 5mm spacer front (CV's slightly above level) and Mugen 350wt 8mm spacer back (CV's level). If you wanna see the car really launch try the same spacers and oils with the blue springs. Hope this helps.
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