1. What Is This Calculation?

This calculator estimates the 0-60 mph acceleration time for a Mazda Miata with approximately 230 horsepower, based on its weight and a performance constant.

2. How The Formula Works

The calculator uses the performance equation:

Where:

• \( T \) — 0-60 time in seconds
• \( W \) — Vehicle weight in pounds
• 230 — Base horsepower value
• \( C \) — Performance constant (typically ~5.825)

Explanation: The formula accounts for the cubic relationship between power-to-weight ratio and acceleration time.

3. Importance Of Weight In Performance

Details: Weight is a critical factor in acceleration performance. Reducing weight improves acceleration more significantly than modest power increases.

4. Using The Calculator

Tips: Enter your Miata's current weight in pounds and adjust the performance constant if you have more precise data. The default constant (5.825) works well for most street Miatas.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this estimate?
A: This provides a reasonable estimate for a 230hp Miata, but actual times depend on tires, gearing, traction, and driving technique.

Q2: What's a typical weight for a modified Miata?
A: Stock NAs weigh ~2300 lbs. Modified street cars range 2100-2500 lbs depending on modifications.

Q3: How does horsepower affect the calculation?
A: The formula assumes 230hp. For different power levels, adjust the denominator (230) to match your actual horsepower.

Q4: What modifications improve 0-60 times?
A: Lightweight wheels, sticky tires, proper gearing, and weight reduction help most. Power adds help but with diminishing returns.

Q5: What's a good 0-60 time for a 230hp Miata?
A: Depending on weight, expect 4.5-6.5 seconds. Lighter cars (2100 lbs) can achieve low 4s with optimal setup.