Ask Miles, our Setup AI that’s been trained on the IF14-II FWD.
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Gearing
Stock gearing for the Infinity IF14-II FWD, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 36T | 2.17 | 3.92 |
| 37T | 2.11 | 3.82 |
| 38T | 2.05 | 3.72 |
| 39T | 2.00 | 3.62 |
| 40T | 1.95 | 3.53 |
| 41T | 1.90 | 3.44 |
| 42T | 1.86 | 3.36 |
| 43T | 1.81 | 3.28 |
| 44T | 1.77 | 3.21 |
| 45T | 1.73 | 3.14 |
| 46T | 1.70 | 3.07 |
| 47T | 1.66 | 3.00 |
Shaded rows are the pinions most 1/10 FWD touring/gt setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Infinity IF14-II FWD, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Infinity IF14-II FWD?
It depends on your motor and the track. In the 1/10 FWD touring/gt class, racers gear by final drive ratio: 17.5T near 4.51. On the IF14-II FWD's stock 78T spur that is about 31T for 17.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the IF14-II FWD selected.
What is the internal ratio (transmission ratio) of the Infinity IF14-II FWD?
The IF14-II FWD has an internal ratio of 1.81:1. Final drive ratio = spur ÷ pinion × 1.81. With the stock 78T spur, a 36T pinion gives an FDR of 3.92 and a 47T gives 3.00.
How many teeth is the stock spur gear on the Infinity IF14-II FWD?
78 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 (Asphalt). Part numbers link to AMain.
- Front
- 550 cst
- Rear
- 550 cst
- Front
- Silver line 2.5-3.0 Purple #SMJ1008 →
- Rear
- Silver line 3.2 Pink #SMJ1003 →
- Front
- 4 x 1.1mm
- Rear
- 4 x 1.1mm
- Front
- 500,000 cst
What shock oil does the Infinity IF14-II FWD come with?
Out of the box the IF14-II FWD runs 550 cst front, 550 cst rear, on 4 x 1.1mm front, 4 x 1.1mm 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 Infinity IF14-II FWD come with?
The kit springs are Silver line 2.5-3.0 Purple (#SMJ1008) front, Silver line 3.2 Pink (#SMJ1003) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
What diff fluid does the Infinity IF14-II FWD come with?
The kit diff fluid is 500,000 cst front. 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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Setup App & Race Log
Your Infinity IF14-II FWD is in the RC Setup App
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