## What is a fast trap speed?

The trap speed is how fast you’re going at the end of the quarter. Your ET is how long it took you to get there. Speed = distance / time. Increase speed. Keep distance constant.

## What is a trap speed in 1/4 mile?

Calculate ¼-mile ET and trap speed For example, a 2,400 pound vehicle with 300 horsepower should make it through the quarter-mile in 11.65 seconds, with a trap speed of 117.08 miles-per-hour.

**What does trap speed mean in drag racing?**

Also known as the speed trap, this timer is located 66 feet before the finish line. It records the car’s average speed between it and the finish line. This is the mile per hour figure on your time slip.

**What is the formula for calculating the speed of a trap?**

TRAP SPEED (mph): The formula for ET involves the cube root of the weight-to-power ratio multiplied by a constant of 5.825, while the formula for Terminal MPH calls for the cube root of the power-to-weight ratio multiplied by a constant of 234.

### How can I increase my trap speed?

As you increase vehicle power output, Trap speed should increase. All things being equal. Generally speaking it takes 10-15 hp to add every additional mph.

### What does ET mph mean?

The relationships between a vehicle’s horsepower (HP) and weight (WT) ratios and its quarter-mile elapsed time (ET) and trap speed (MPH) can be. mathematically represented using the POWER equation: ( )B.

**What are traps in racing?**

In essence, a trap challenge bet asks you to predict the winner of every race and figure out which trap they will run out of. The good news is, though, that, unlike with an accumulator bet on all of the winners, your bet won’t become a loser if one of your predictions is a loser.

**How much horsepower does a 10 second car have?**

Performance stats The engine produced somewhere around 544 – 569 horsepower without nitrous. On standard street tires, it could go from 0 to 60 in 4.3 seconds and from 0 to 100 in 9.2 seconds.

#### How do you calculate the speed of a boat?

The formula to calculate the speed is therefore: (L x 60) (T x 100) = V, where L is length in feet, T is time in seconds and V is speed in knots. For example, if on a 28ft yacht it took three and a half seconds to pass an object, the calculation would be : (28 x 60) divided by (3.5 x 100) = 4.8 knots.

#### How fast does it take to pass a speed trap?

A 14.00 et usually resulted in a trap speed very near 100 mph. A 10.00 et meant around 140 mph. A 200 mph pass usually takes around 7.00 seconds. These are still good rules of thumb to remember, but now the product is more like 1380 for us – The example from Car and Driver above comes out at 1350.

**How to calculate ¼-mile trap speed from HP and weight?**

Calculate ¼-mile ET from HP and weight: ET = ( (Weight ÷ HP) .333) × 5.825 Calculate ¼-mile trap speed from HP and weight: MPH = ( (HP ÷ Weight) .333) × 234 The results you obtain from this calculator are just guestimations, though. Front-wheel drive cars are different from rear-wheel drive cars, and all-wheel drive cars are different still.

**What was the average trap speed before the NHRA changed the formula?**

Before the NHRA changed the way that speed is measured in 1989, the product of speed and time was around 1400. Let’s calculate some easy examples of this. A 14.00 et usually resulted in a trap speed very near 100 mph. A 10.00 et meant around 140 mph.

## What is the difference between trap speed and et?

1) Trap Speed will tell you about your HP to weight. 2) ET will tell you more about traction and your launch. Of course ET is important to true drag racers, because the winner is the one that gets there first. However, we’re not necessarily true drag racers in our attempt to get a power estimate.