What size is the LQ9 throttle body?
As a seasoned auto service provider, I often encounter questions about specific components of vehicles, particularly when it comes to performance upgrades and repairs. One common inquiry is about the size of the throttle body on the LQ9 engine. Understanding this component is crucial for anyone looking to enhance their vehicle's performance or simply maintain it properly.
What is the LQ9 Engine?
The LQ9 is a 6.0-liter V8 engine produced by General Motors, primarily used in high-performance applications such as the Chevrolet Silverado SS and the Cadillac Escalade. Known for its robust power output and reliability, the LQ9 is a popular choice among car enthusiasts and those looking to upgrade their vehicles.
Throttle Body Size
The throttle body is a critical component of the engine's air intake system, controlling the amount of air that enters the engine. For the LQ9 engine, the throttle body size is 90mm in diameter. This size is significant because it allows for a substantial airflow, which is essential for maximizing engine performance.
Why Throttle Body Size Matters
Choosing the right throttle body size can impact your vehicle's performance in several ways:
- Airflow Efficiency: A larger throttle body can improve airflow, leading to better engine performance, especially at higher RPMs.
- Power Gains: Upgrading to a larger throttle body can result in noticeable power increases, particularly when combined with other performance modifications.
- Fuel Efficiency: While a larger throttle body can enhance power, it may also affect fuel efficiency, depending on how the vehicle is tuned.
Conclusion
In summary, the LQ9 throttle body measures 90mm, making it a vital component for those looking to optimize their engine's performance. Whether you're considering an upgrade or simply maintaining your vehicle, understanding the specifications of your engine's components is essential for achieving the best results.
Frequently Asked Questions
What size are throttle bodies?
Most aftermarket manufacturers produce throttle bodies in the 90-105mm range (some slightly larger) for use with stock and aftermarket LS intakes. Most factory intakes will not accept a throttle blade larger than a 90-92mm due to design with impregnated gasket and bore relation.
What size throttle body for 500 hp?
In terms of most people modifying these engines for street use, generally find that probably going to be somewhere in the region of 500 to 600 horsepower, that's a fairly healthy combination that's fairly easy to achieve without breaking the bank and generally in that instance, somewhere between 70 and 75 mm for the ...
What size is the throttle body of the LS4?
76mm
Intake Manifold and Throttle Body
The LS4 has a small 76mm throttle body. It also has a smaller intake manifold than other LS engines. The smaller units are needed to clear everything else under the hood. However, they restrict the engine's ability to breathe.
What size throttle body is on a LQ9?
Chevy LQ9 Engine Specs
| Other Specifications | |
|---|---|
| Intake Manifold | Truck Style |
| Throttle Body | 80mm, 3-Bolt |
| Throttle Control | Electronic (Drive-by-Wire) |
| Fuel Injector Flow | 25.2 lbs |
What size is lq4 throttle body?
Chevy LQ4 Engine Specs
| Other Specifications | |
|---|---|
| Intake Manifold | Truck Style |
| Throttle Body | 80mm, 3-Bolt |
| Throttle Control | All Cable Operated, 1999-02 |
| Drive-by-Wire phased in 2003-04, on most models |
Are all LS throttle bodies the same?
The earlier models are a three bolt type, meaning they bolt to the intake only using three bolts. The newer generation throttle bodies are 4 bolt. Different vehicle also have different size throttle bodies, and many aftermarket companies sell even bigger throttle bodies like the 102 mm.
What is the difference between LQ4 and LQ9?
The only differences were: The LQ4 came with dished pistons. The LQ9 came with flat top pistons. (This raised the compression ratio, horsepower, and torque.)
Are bigger throttle bodies better?
So when we go larger in our throttle body size, we're actually reducing the air velocity for a given airflow so what this can end up doing is hampering our low RPM performance so going larger in an individual throttle body size can give you a small improvement potentially in power but quite often that's going to be at ...
What size throttle body is a 6.0 LS?
LS1/6/4.8/5.3/6.0 Throttle bodies are all the same size 76mm, and come in DBW and cable.
What size is LQ9 throttle body?
Chevy LQ9 Engine Specs
| Other Specifications | |
|---|---|
| Intake Manifold | Truck Style |
| Throttle Body | 80mm, 3-Bolt |
| Throttle Control | Electronic (Drive-by-Wire) |
| Fuel Injector Flow | 25.2 lbs |
