Setups
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Gearing
Stock gearing for the Kyosho Inferno MP9e Evo, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 12T | 3.83 | 12.68 |
| 13T | 3.54 | 11.71 |
| 14T | 3.29 | 10.87 |
| 15T | 3.07 | 10.14 |
| 16T | 2.88 | 9.51 |
| 17T | 2.71 | 8.95 |
| 18T | 2.56 | 8.45 |
| 19T | 2.42 | 8.01 |
Shaded rows are the pinions most 1/8 4WD buggy setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Kyosho Inferno MP9e Evo, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Kyosho Inferno MP9e Evo?
It depends on your motor and the track. In the 1/8 4WD buggy class, racers gear by final drive ratio: 1800–2300 kV near 10.06. On the Inferno MP9e Evo's stock 46T spur that is about 15T for 1800–2300 kV. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the Inferno MP9e Evo selected.
What is the internal ratio (transmission ratio) of the Kyosho Inferno MP9e Evo?
The Inferno MP9e Evo has an internal ratio of 3.308:1. Final drive ratio = spur ÷ pinion × 3.308. With the stock 46T spur, a 12T pinion gives an FDR of 12.68 and a 19T gives 8.01.
How many teeth is the stock spur gear on the Kyosho Inferno MP9e Evo?
46 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
Kit setup
Kit shock setup. Part numbers link to AMain.
- Front
- 70mm Grey #IF350-6514 →
- Rear
- 84mm Purple #IS106-814 →
- Front
- 8 x 1.2mm #IF347-128 →
- Rear
- 8 x 1.3mm #IF347-138 →
- Front
- 5,000 cst
- Center
- 5,000 cst
- Rear
- 3,000 cst
What springs does the Kyosho Inferno MP9e Evo come with?
The kit springs are 70mm Grey (#IF350-6514) front, 84mm Purple (#IS106-814) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
What diff fluid does the Kyosho Inferno MP9e Evo come with?
The kit diff fluid is 5,000 cst front, 5,000 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.
Setup Help
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