MBX7R ECO

Mugen Seiki MBX7R ECO

Q&A, kit settings, and guides

Off-road•Buggy•1/8 scale•4WD

Ask Miles, our Setup AI that’s been trained on the MBX7R ECO.

AI Feedback on Your Setup

Talk with an AI Mechanic that actually knows your car's exact setup, anytime, anywhere.

Get App

Setups

Get MBX7R ECO alerts
Be the first to share a setup for the MBX7R ECO
Upload your sheet, we fill in the details
Add your setup

Kit setup

Kit shock setup. Part numbers link to AMain.

Shock oil
Front
550 cst
Rear
550 cst
Mugen Seiki oil
Springs
Front
75mm 1.5mm x 7.75T #E0573 →
Rear
86mm 1.5mm x 8.0T #E0577 →
Pistons
Front
8 x 1.3mm #E2525 →
Rear
8 x 1.3mm #E2525 →
Diff fluid
Front
7,000 cst
Center
7,000 cst
Rear
3,000 cst

What shock oil does the Mugen Seiki MBX7R ECO come with?

Out of the box the MBX7R ECO runs 550 cst front, 550 cst rear (Mugen Seiki oil), on 8 x 1.3mm (#E2525) front, 8 x 1.3mm (#E2525) rear pistons. That is the kit setup; you will need to adjust it for your track conditions. The RC Setup App can help dial it in.

What springs does the Mugen Seiki MBX7R ECO come with?

The kit springs are 75mm 1.5mm x 7.75T (#E0573) front, 86mm 1.5mm x 8.0T (#E0577) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.

What diff fluid does the Mugen Seiki MBX7R ECO come with?

The kit diff fluid is 7,000 cst front, 7,000 cst center, 3,000 cst rear. Thicker front adds steering on power; thicker center sends more drive rearward; thicker rear stabilizes the car under throttle.

RC Setup App icon

Free to start · iOS & Android

Setup App & Race Log

Your Mugen Seiki MBX7R ECO is in the RC Setup App

Save every setup change you make to your Mugen Seiki MBX7R ECO, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.

  • Setup Tracking
  • AI Mechanic answers
  • Find & Share Setups
  • Race Log
  • Gear Ratio Calculator
  • Free to use