VehiclesHPI Racing WR8 Flux 1996 Ford Escort RS Cosworth
HPI Racing WR8 Flux 1996 Ford Escort RS Cosworth
1/8 scale · 160558
- Top speed
- 46mphcalculated
- Final drive
- 8.33:1
- Tire
- 80mm
Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | 17TStock | Stock |
| Spur | 46TStock | Stock |
| Transmission & axle | 3.08:1Derived | Derived |
| Spur ÷ pinion | 2.706:1Calculated | Calculated |
| Final drive | 8.33:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | 80mmStock | Stock |
| Rollout | 30.2mm per motor turnCalculated | Calculated |
| Wheel hex | 12 mmStock | Stock |
| Power | ||
| Motor | 3700KVStock | Stock |
| Motor shaft | 5 mmStock | Stock |
| Battery | Up to 3SLiPoStock | Stock |
| Stock motor | FLX10-3660-3700KV Brushless MotorStock | Stock |
| Stock ESC | FLX-10 3S802 Flux ESCStock | Stock |
| Battery connector | XT-60Stock | Stock |
| Performance | ||
| Theoretical top speed | 46.2mph on 3SCalculated | Calculated |
| Motor speed | 41,070rpm, no loadCalculated | Calculated |
| Chassis | ||
| Length | 485 mm19.1 inStock | Stock |
| Width | 227 mm8.9 inStock | Stock |
| Height | 172 mm6.8 inStock | Stock |
| Wheelbase | 300 mm11.8 inStock | Stock |
| Diff oil, center | 100KStock | Stock |
| Shock oil, front | 50 wtStock | Stock |
| Shock oil, rear | 50 wtStock | Stock |
| Vehicle | ||
| Part number | 160558 | |
| Scale | 1/8 | |
Stock is as the vehicle ships. Calculated is worked from the stock figures on this page rather than stored beside them, so the two cannot drift apart. Derived is worked out from gear tooth counts the maker publishes rather than printed as a ratio; the notes below say how. The top speed is kinematic: an ideal no-load RPM with no slip and no loss under load, so a real car is slower.
Gearing parts
| Component | Teeth | Pitch | Bore | Part number |
|---|---|---|---|---|
| Fitted at the factory | ||||
| Pinion | 17T | Mod 1 | 5 mm | 100916 (opens in a new tab) |
| Spur | 46T | Not published | Not applicable | 66654 (opens in a new tab)Hot Bodies |
Tooth counts are the ones in the specifications above. Pitch is given as metric module (Mod 1, Mod 0.8) or diametral pitch (32P, 48P). They are different standards and are not interchangeable, even where the numbers look close. Bore is the pinion’s hole, listed separately from the motor shaft (5 mm on the stock motor). Linked part numbers go to the maker's or official distributor's page for that part.
How these numbers were settled
Same chassis, 46T spur, 40T/13T diff bevel pair and 57x80mm tarmac tires as the WR8 Flux (107113), with a newer power system: a FLX10-3660 3700KV motor, an FLX-10 3S802 ESC with XT-60, and a 17T 1M pinion.
- The manual's pinion page (p. 23) marks 17T as standard, and its parts list and HPI's standard parts list name the same 17T pinion (100916), 46T spur (66654) and bevel gears (101215, 101216).
- The total works out at 46/17 x 40/13 = 8.33:1.
- At 3.7V per cell on 3S that gives about 46 mph in theory, so the product page headline of 60+ mph does not fit the stock setup and is not shown here.
- The ESC's part page rates it for 2-3S LiPo.
Documents
- ManualWR8 Flux TF-51 instruction manual (HPI PDF) (opens in a new tab)Replace pinion gear, p. 23
- Parts listWR8 Flux parts list (HPI PDF) (opens in a new tab)p. 39
- Exploded viewWR8 Flux exploded view, in the manual (HPI PDF) (opens in a new tab)pp. 40-41
Sources
- 160558hpiracing.com (opens in a new tab)
- stdhpiracing.com (opens in a new tab)
- Manual (PDF)hpiracing.com (opens in a new tab)
- 100916hpiracing.com (opens in a new tab)
- 66654hpiracing.com (opens in a new tab)
- 108076hpiracing.com (opens in a new tab)
- 160940hpiracing.com (opens in a new tab)
- 160942hpiracing.com (opens in a new tab)
- 107876hpiracing.com (opens in a new tab)
Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.