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

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

---

### **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)?