How do I know what size throttle body I need?
“having a throttle body too big can hurt overall performance. At 8200 RPM a 122 cubic inch engine will need 290 cfm at 100% volumetric efficiency, using the formula ((Max RPM/2)* Displacement)/1728. Rule of thumb is to go 10% over because a naturally aspirated engine can go above 100% volumetric efficiency.
How big is the throttle blade on a GM Truck?
The GM truck throttle body looks much like the 1997–2004 Corvette throttle body but with the TPS and throttle shaft motor on opposite sides. The truck and Corvette share the same throttle shaft motor (which is not serviceable separately) but with opposing polarity. The blade on this throttle body measures approximate 75 mm in diameter.
Is the General Motors Rochester throttle body OEM?
The General Motors Rochester Throttle Body (TBI) is OEM original equipment. Each TBI comes complete with injectors, TPS, air control valve, and throttle body bushings. Every TBI will be Flow Bench tested, calibrated, and idle adjusted making it ready for easy installation. Each TBI has a complete one year warranty.
How does the throttle plate work on a GM car?
A motor and gear reduction set inside the throttle body opens and closes the throttle plate to accomplish your request. Over time, carbon buildup can accumulate around the throttle plate, changing it’s “home” position.
Is the throttle body dependent on other parts?
This is carried out electronically in electronic fuel injection engine systems. In most vehicles, there is only one throttle body, with a rare exception of special, larger vehicles. The function of the throttle body is also dependent on other parts, such as the air filter.
How many GMC trucks have throttle body injection?
New and Remanufactured Throttle Body Assemblies for 305, 350, 454 Chevy, GM, GMC Trucks, Cars, Vans and 6 Liter and 7 Liter Trucks. Serving our valued customers for over 30 years.
The GM truck throttle body looks much like the 1997–2004 Corvette throttle body but with the TPS and throttle shaft motor on opposite sides. The truck and Corvette share the same throttle shaft motor (which is not serviceable separately) but with opposing polarity. The blade on this throttle body measures approximate 75 mm in diameter.
The General Motors Rochester Throttle Body (TBI) is OEM original equipment. Each TBI comes complete with injectors, TPS, air control valve, and throttle body bushings. Every TBI will be Flow Bench tested, calibrated, and idle adjusted making it ready for easy installation. Each TBI has a complete one year warranty.
Which is the best throttle body for GM LS?
Big Mouth™ Throttle Bodies from FAST™ are a perfect choice for a variety of GM LS applications. Features black-wrinkle powder coating and all of the same features as FAST™ billet throttle… Throttle Bodies by Granatelli Motor Sports®. Throttle bodies are designed as a direct replacement for the factory unit.