How many CFM does a 102mm throttle body flow?

According to testing performed at Kenne Bell, the stock ’10-up Camaro SS 90mm throttle body flows 1,147 cfm.

Do bigger throttle bodies make more power?

A bigger throttle body means more air And since the engine is basically a large air pump, increasing the air intake level will increase the engine’s power output as well, in some cases by up to 15 to 25 hp. Having more air, but not enough fuel, going into the engine could lead to no extra power being made.

What size throttle body does a stock?

For a stock-mildly modded N/A engine (CAI, programmer, exhaust) a TRUE throttle body diameter of 80-83mm is ideal, it will allow a good velocity at low vacuum but still flow more than enough air into the intake manifold to keep up to the demands of the combustion chambers.

Is bigger throttle body better?

A larger throttle body delivers air at a higher rate than a stock engine, allowing the driver to feel an accelerating response from the vehicle sooner. In addition to increasing acceleration performance, larger throttle bodies can also boost overall horsepower.

How do you calculate CFM from HP?

If you know how much horsepower your motor makes, you can estimate its air flow in cubic feet per minute (CFM). For example, a 1,600 cc motor in a good state of tune requires about 54 cubic feet per minute to make 78 horsepower.

How do you calculate CFM for throttle body?

CFM = (350 x 6,500) ÷ 3,456 = 658 cfm at the power peak These are the engine’s theoretical air requirements if we didn’t have all sorts of interference and restriction from carburetor venturis and throttle plates, manifold runners, intake ports, valves, and so on.

How much HP does a throttle body spacer add?

They are very easy to install and contain other parts to increase vehicle performance. This is an inexpensive way to increase power and torque. With a throttle body spacer, it is possible to increase the torque by 25 ft lbs and add up to 18 more horsepower.

What size throttle body should I use?

The general rule is: the bigger the size, the higher the RPM needed for a kick of power. If your new throttle body is too big your vehicle will feel tired at lower RPMs, while really taking off powerfully at higher RPMs (when the engine’s demand of air flow matches up with the the internal bore’a bigger size).

Is 1 HP equal to a horse?

Calculating the Power of a Single Horse Each horse pushed with a force that Watt estimated at 180 pounds. From this, Watt calculated that one horsepower was equivalent to one horse doing 33,000 foot-pounds of work in one minute.

What is the CFM rating of a throttle body?

It’s important to flow test a performance throttle body and find the CFM rating. A 75mm Brand A throttle body, may not equal the performance of a 75mm Accufab throttle body. This airflow analysis is important because, basically, an engine is an air pump.

What are the dimensions of a HPI throttle body?

Plus, HPi throttle bodies are offered in many bore sizes that feature extended intake manifold deck lengths and port configurations to match any head configuration. HPi Cable Driven units are offered in sizes 51mm, 55mm, 58mm, 62mm and 64mm for all 2001-2005 and 2006-2017 Big Twin/Twin Cam models.

How big is a 48mm carb throttle body?

The 48mm still flows over 750 CFM and many, many old school carb engines make 550 HP+ with a 750 double pumper. Put a 1000 CFM 3 barrel carb (58mm=1000CFM also) on a street engine and it would be way over carbed. Heck, I put a 1000 CFM 3 bbl on my new stock 1969 440 Charger (a few years ago)and when I stood on the gas it just about died.

Why does an Accufab throttle body outflow?

An Accufab throttle body is designed to outflow the stock throttle body, hence, providing more air to the engine for it to utilize accordingly.