---
title: DeepSeek#\x3A Compare horsepower and torque of a 2006 VFR800 versus 2025 CBR650R
tags: notes
---

# DeepSeek: Compare horsepower and torque of a 2006 VFR800 versus 2025 CBR650R

Answer via [DeepSeek-v3](https://www.deepseek.com/en)

Here’s a detailed comparison of the **2006 Honda VFR800 (6th gen, VTEC model)** and the **2025 Honda CBR650R** in terms of **horsepower (HP) and torque**, along with performance characteristics:

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### **Engine Specifications**
| **Spec** | **2006 Honda VFR800** | **2025 Honda CBR650R** |
|---------------------|----------------------|-----------------------|
| **Engine Type** | 782cc, 90° V4 (VTEC) | 649cc, inline-four |
| **Horsepower (HP)** | ≈108–112 HP @ 10,500 RPM | ≈94–95 HP @ 12,000 RPM |
| **Torque** | ≈58–60 lb-ft (79–81 Nm) @ 8,750 RPM | ≈47–49 lb-ft (64–66 Nm) @ 8,500 RPM |
| **Redline** | ~11,500 RPM | ~12,500 RPM |
| **Compression Ratio** | 11.6:1 | 11.6:1 |

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### **Performance Comparison**
1. **Power Delivery:**
- **VFR800 (V4):**
- Strong **mid-range torque** thanks to the V4 configuration.
- VTEC engagement (~6,800 RPM) can feel abrupt but improves top-end power.
- **CBR650R (Inline-4):**
- Smoother, more linear powerband with a focus on **high-RPM performance**.
- Less low-end torque but revs higher.

2. **Torque Curve:**
- The **VFR800** has a clear advantage in torque (≈10–12 lb-ft more), making it feel **stronger at lower RPMs** (better for street/touring).
- The **CBR650R** needs to be revved harder to access peak power but is more refined in its delivery.

3. **Top Speed & Acceleration:**
- **VFR800:** ~140–145 mph (electronically limited); **0–60 mph in ~3.5 sec**.
- **CBR650R:** ~135–140 mph; **0–60 mph in ~3.6–3.8 sec** (slightly slower due to lower torque).

4. **Weight & Gearing:**
- **VFR800:** Heavier (~485 lbs wet) but more stable at high speeds.
- **CBR650R:** Lighter (~450 lbs wet) with quicker-revving engine.

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### **Which One Is Faster?**
- **Straight-Line Speed:** The **VFR800** has a slight edge due to its **higher torque and displacement**.
- **Track/Agility:** The **CBR650R** feels nimbler and benefits from modern suspension/electronics.

### **Best For?**
- **VFR800:** Sport-touring, long-distance comfort, and V4 character.
- **CBR650R:** Sportier riding, newer tech, and a rev-happy inline-four.

Would you like a dyno chart comparison or real-world riding impressions?

> DYNO

Here’s a **dyno chart comparison** (simplified) of the **2006 Honda VFR800 VTEC** vs. the **2025 Honda CBR650R**, based on typical real-world dyno results:

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### **Horsepower (HP) Curve**
| **RPM** | **VFR800 (HP)** | **CBR650R (HP)** |
|----------|-----------------|------------------|
| 4,000 | ~45 HP | ~35 HP |
| 6,000 | ~75 HP | ~55 HP |
| 8,000 | ~95 HP | ~75 HP |
| 10,000 | ~108 HP | ~90 HP |
| 12,000 | ~105 HP (fall-off) | **94 HP** (peak) |

**Key Takeaway:**
- The **VFR800 dominates mid-range (6K–10K RPM)** thanks to its V4 torque.
- The **CBR650R catches up at high RPMs** but lacks low-end grunt.

---

### **Torque (lb-ft) Curve**
| **RPM** | **VFR800 (lb-ft)** | **CBR650R (lb-ft)** |
|----------|--------------------|---------------------|
| 4,000 | ~45 | ~30 |
| 6,000 | ~55 | ~40 |
| 8,000 | **58 (peak)** | **48 (peak)** |
| 10,000 | ~52 | ~45 |

**Key Takeaway:**
- The **VFR800 delivers ~20% more torque** across most of the rev range.
- The **CBR650R needs revs** to stay in its powerband.

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### **Visual Dyno Trends**
1. **VFR800:**
- Broad, flat torque curve (ideal for street riding).
- Power plateaus early (~10K RPM) due to VTEC’s 2-valve mode at low RPM.

2. **CBR650R:**
- Steep, linear power climb—best above **8,000 RPM**.
- Feels anemic below 6K RPM compared to the VFR.

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### **Real-World Implications**
- **VFR800:** Easier to ride briskly without downshifting (better roll-on acceleration).
- **CBR650R:** More fun when kept above 8K RPM (track-focused).

#### **Mod Potential?**
- **VFR800:** Exhaust + ECU tune can unlock **~115 HP**.
- **CBR650R:** Full system + tune might hit **~100–102 HP**.

Would you like actual dyno graphs (I can describe them in detail)? Or a comparison to another bike (e.g., Yamaha MT-07)?