VehiclesHPI Racing Vorza Nitro Truggy
HPI Racing Vorza Nitro Truggy
1/8 scale · truggy · 160180
- Final drive
- 14.33:1
- Tire
- 143mm
Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | 15TStock | Stock |
| Spur | 50TStock | Stock |
| Transmission & axle | 4.30:1Derived | Derived |
| Spur ÷ pinion | 3.333:1Calculated | Calculated |
| Final drive | 14.33:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | 143mmStock | Stock |
| Rollout | 31.3mm per motor turnCalculated | Calculated |
| Wheel hex | 17 mmStock | Stock |
| Power | ||
| Motor | Not applicable | |
| Motor shaft | Not applicable | |
| Battery | Not applicable | |
| Performance | ||
| Theoretical top speed | Not applicable | |
| Chassis | ||
| Length | 580 mm22.8 inStock | Stock |
| Width | 408 mm16.1 inStock | Stock |
| Height | 200 mm7.9 inStock | Stock |
| Wheelbase | 375 mm14.8 inStock | Stock |
| Shock oil, front | 500 cStStock | Stock |
| Shock oil, rear | 500 cStStock | Stock |
| Vehicle | ||
| Part number | 160180 | |
| Scale | 1/8 | |
| Class | Truggy | |
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. Not applicable means the vehicle does not come with it, like the motor on a roller or the tires on a race kit, or does not have one, like a KV rating on a brushed motor.
Gearing parts
| Component | Teeth | Pitch | Bore | Part number |
|---|---|---|---|---|
| Fitted at the factory | ||||
| Pinion | 15T | Mod 1 | Not applicable | A990 (opens in a new tab) |
| Spur | 50T | Not published | Not applicable | 101188 (opens in a new tab) |
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. Linked part numbers go to the maker's or official distributor's page for that part.
How these numbers were settled
Nitro Vorza truggy with the Nitro Star F4.6 V2 engine.
- The manual's parts list (p. 44) and HPI's standard parts list both name a 15T heavy-duty 1M clutch bell (A990), a 50T center spur (101188), and 10T spiral pinions (67499) driving 43T spiral diff gears (101192), so the ratio after the spur is 4.3 and the total is 50/15 x 4.3 = 14.33:1.
- Tires are Voodoo truggy tires, 143mm outer diameter by 60mm wide (160292).
Documents
- ManualVorza Nitro Truggy instruction manual (HPI PDF) (opens in a new tab)Clutch and spur gear mesh, p. 25
- Parts listVorza Nitro Truggy parts list (HPI PDF) (opens in a new tab)p. 44; option parts p. 45
- Exploded viewVorza Nitro Truggy exploded view (HPI PDF) (opens in a new tab)
Sources
- 160180hpiracing.com (opens in a new tab)
- stdhpiracing.com (opens in a new tab)
- Manual (PDF)hpiracing.com (opens in a new tab)
- A990hpiracing.com (opens in a new tab)
- 101188hpiracing.com (opens in a new tab)
- 160292hpiracing.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.