Drag racing enthusiasts are constantly on the lookout for the best transmission to give them that extra edge on the track. One transmission that has gained popularity in the drag racing community is the 700R4. But is it really a good choice for drag racing? In this blog post, we’ll explore the advantages and limitations of the 700R4 transmission in a drag racing setting.
If you’re new to the world of transmissions, you might be wondering what sets the 700R4 apart from the rest. To start, the 700R4 is an automatic transmission that was introduced by General Motors in 1982. It became the first GM automatic overdrive transmission to be electronically controlled, making it a significant advancement in the world of drag racing. So if you’re wondering what year did the 700R4 go electronic, that would be 1982.
So, sit back, buckle up, and prepare to uncover the answers to all your burning questions about the 700R4 transmission. Does it need a computer? Can it handle the power you need? And most importantly, is it better than its predecessor, the TH400? Keep reading to find out!
Is a 700R4 Transmission Fit for Drag Racing?
So, you’re ready to hit the drag strip and unleash some serious horsepower? The heart-pounding thrill of drag racing is undeniably addictive. But before you rev that engine and leave everyone eating your dust, it’s crucial to ensure you have the right transmission built for the job. Enter the 700R4, a legendary transmission that has earned its stripes in the world of drag racing. Let’s dive into whether the 700R4 is truly good for drag racing or if it’s just another transmission playing dress-up.
Unleashing the Beast: 700R4 Transmission Overview
The 700R4 transmission, often dubbed by car enthusiasts as the “granddaddy” of modern overdrive automatic transmissions, has been a staple in many drag racing builds. Developed by General Motors in the 1980s, it was the first transmission of its kind to boast a four-speed automatic with an overdrive gear—an essential feature when it comes to maximizing performance and efficiency for drag racing.
Powerful and Efficient: The 700R4 Strikes a Balance
When it comes to drag racing, power and efficiency are two peas in a pod. The 700R4 exemplifies this balance, providing the necessary strength to handle high horsepower engines while still delivering better fuel economy than its predecessors. With a robust design that includes improved gear ratios and a lock-up torque converter, the 700R4 can help propel your drag car forward with ease.
700R4: The Good, the Better, and the Best for Drag Racing
Although the 700R4 has proven its worth as a solid option for drag racing, it’s important to understand that not all variations of this transmission are created equal. The original 700R4 had its limitations, with less desirable gear ratios that weren’t optimized for maximum performance. However, fear not, as the aftermarket has come to the rescue!
Aftermarket Enhancements: Take Your 700R4 to the Next Level
Thanks to the endless possibilities offered by the aftermarket world, there are several upgrades available to transform your 700R4 into a drag racing beast. Upgrading key components like valve bodies, torque converters, and clutch packs can significantly improve the transmission’s performance, helping you achieve quicker launches, faster shift times, and overall better track times.
The Devil’s in the Details: Pros and Cons of the 700R4
Like any other transmission, the 700R4 has its fair share of pros and cons. Let’s take a closer look:
Pros:
- Durability: The 700R4 can handle plenty of power and torque, making it a reliable choice for drag racing.
- Overdrive Gear: Having that additional overdrive gear allows for better highway cruising and improved fuel economy.
- Aftermarket Support: With abundant aftermarket upgrades available, you can tailor your 700R4 to suit your drag racing needs.
- Cost-Effective: Compared to highly specialized racing transmissions, the 700R4 offers a cost-effective solution without compromising performance.
Cons:
- Factory Limitations: The original configuration of the 700R4 may not be optimized for drag racing, necessitating aftermarket upgrades.
- Heat Build-Up: The 700R4 can generate significant heat under extreme drag racing conditions, requiring additional cooling measures to keep it in top shape.
- Weight: Compared to some racing-specific transmissions, the 700R4 is relatively heavier, which might impact overall vehicle weight distribution.
Choosing Your Drag Racing Destiny
So, is the 700R4 good for drag racing? Definitely! However, it’s essential to consider your specific drag racing goals and the level of modification you’re willing to undertake. If you’re seeking an off-the-shelf transmission that provides a balance of power and efficiency, the 700R4 with aftermarket enhancements is a solid choice. On the other hand, if you demand maximum performance and have the budget for a purpose-built racing transmission, exploring other options may be worth your while.
In the end, drag racing is all about pushing the limits and finding that perfect balance between performance and reliability. The 700R4, with its rich history and aftermarket support, offers a fantastic foundation to build upon and enjoy the exhilaration of the drag strip. So, gear up, hold on tight, and let the 700R4 unleash your inner drag racing beast!
FAQ: Is a 700R4 Good for Drag Racing?
If you’re into drag racing, you know the importance of having a transmission that can handle the power and torque of your high-performance engine. One transmission that often comes up in discussions is the 700R4. But is it really good for drag racing? In this FAQ-style guide, we will answer some of the most common questions about the 700R4 and its suitability for drag racing.
What Year Did the 700R4 Go Electronic
The 700R4 transmission went electronic in 1982. This means that some older versions of the transmission are not electronic and may not be as ideal for drag racing. However, if you have a later model of the 700R4, you can take advantage of the electronic controls for better performance and efficiency on the drag strip.
Does the 700R4 Need a Computer
Yes, the 700R4 requires a computer to operate effectively. The computer is responsible for controlling various functions of the transmission, such as shift points and lockup engagement. It helps optimize the performance and efficiency of the transmission, making it a great choice for drag racing.
Is the 700R4 Better Than a TH400
The answer to this question depends on your specific needs and preferences. The TH400 is a robust and reliable transmission that can handle high power levels, making it popular among drag racers. However, the 700R4 offers overdrive capabilities, which can be advantageous for street driving and fuel economy. If you prioritize fuel efficiency and streetability, the 700R4 is a better choice. But if you’re solely focused on drag racing, the TH400 might be the preferred option.
What Year 700R4 is Best
The best year for the 700R4 transmission largely depends on your specific requirements. However, if you are looking for the most refined and reliable version, the models produced from 1987 to 1993 are often considered the best. These later years benefited from various improvements and updates, resulting in a more robust and durable transmission.
Does the 700R4 Have a Lockup Converter
Yes, the 700R4 is equipped with a lockup converter. The lockup converter engages at cruising speeds to eliminate slippage, reducing heat generation and improving overall efficiency. This feature not only enhances fuel economy but also helps in drag racing by minimizing power loss and maintaining consistent power delivery.
How Much Power Can a 700R4 Take
The 700R4 is a strong transmission that can handle moderate to high power levels. In stock form, it is capable of handling around 300-350 horsepower and 300-350 lb-ft of torque. However, with some performance upgrades and modifications, such as heavy-duty clutches and bands, improved valve bodies, and reinforced internal components, the 700R4 can reliably handle power outputs in the range of 500-700 horsepower.
Is a Chevy 5.3 an LS Engine
Yes, the Chevy 5.3-liter engine belongs to the LS family of engines. The LS engines are known for their performance capabilities and are highly sought after for various applications, including drag racing. With proper tuning and modifications, the 5.3 LS engine can deliver impressive power and torque, especially when paired with a suitable transmission like the 700R4.
Can You Carburet a LS Motor
Absolutely! While fuel injection is the more common choice for LS engines, it is possible to carburet an LS motor. Carburetion can simplify the setup, reduce complexity, and potentially save cost on the fuel system. So, if you prefer the simplicity and adjustability of a carburetor, you can still enjoy the power and performance of an LS engine in your drag racing endeavors.
At What Speed Does a 700R4 Shift
The shift points of a 700R4 can vary depending on factors such as engine power, vehicle weight, and gearing. However, typically, the 700R4 shifts from first to second gear around 20-25 mph, from second to third gear around 40-50 mph, and into overdrive (fourth gear) around 55-60 mph. These shift points can be adjusted and fine-tuned to suit your specific setup and drag racing style.
How Do I Know if My 700R4 is Locked Up
Knowing if your 700R4 is in lockup mode is essential for optimal performance. To determine if your transmission is locked up, you can check for a slight drop in RPM when at cruising speeds. Another way is to connect a pressure gauge to the transmission’s hydraulic circuit; if there is no pressure drop when the transmission is in overdrive, the lockup is engaged. Additionally, some aftermarket torque converters may feature a visual indicator to easily identify lockup.
How Much Horsepower Can a Turbo 400 Handle
The Turbo 400 (TH400) is a robust and durable transmission capable of handling substantial power levels. In its stock configuration, it can reliably handle around 450-500 horsepower and torque in the range of 450-550 lb-ft. However, with upgrades such as reinforced internals, heavy-duty clutches, and improved valve bodies, the Turbo 400 can handle even more impressive power outputs, making it a popular choice for serious drag racers.
What is the 700R4 Good for
The 700R4 transmission is an excellent choice for a range of applications, including drag racing. Its combination of strength, overdrive capabilities, and the availability of aftermarket upgrades makes it a versatile option. It offers better fuel efficiency compared to older transmissions like the TH400, making it suitable for daily driving while still being capable of handling moderate to high power levels for spirited acceleration on the strip.
Can a 700R4 Handle 1000hp
While the stock 700R4 transmission may not be rated for extremely high power levels, it can be modified to handle up to 1000 horsepower reliably. Upgrades such as heavy-duty clutch packs, reinforced hard parts, and improved valve bodies can substantially increase the power-handling capabilities of the 700R4. However, for extreme power levels, it is recommended to consult with a reputable transmission builder to design a custom solution that meets your specific requirements.
How Can I Improve My 700R4 Transmission
To improve the performance of your 700R4 transmission for drag racing, several modifications can be made. Upgrading the valve body to improve shift firmness and timing, installing high-performance clutch packs and bands, reinforcing the input shaft and drum, and adding an aftermarket torque converter can significantly enhance the transmission’s strength and durability. Additionally, fine-tuning the lockup function and optimizing the shift points can further improve the overall performance on the strip.
What Transmission Can Handle 1000 HP
For extreme power levels around 1000 horsepower, specialized high-performance transmissions are often recommended. Transmissions such as the TH400 with aftermarket upgrades and valve body modifications, the 4L80E with reinforced internals, or even custom-built transmissions with billet components can handle the demands of 1000 horsepower reliably. It’s crucial to work with an experienced transmission builder who can tailor a solution that suits your specific needs.
Can You Use a 700R4 with an LS Motor
Absolutely! The 700R4 is a popular choice for pairing with LS engines in drag racing applications. Its strength, overdrive capabilities, and compatibility make it an excellent transmission to harness the power and torque of an LS motor effectively. With the right modifications and upgrades, the 700R4 can handle the demands of an LS engine, providing a winning combination on the drag strip.
Which Is Better, 4L60E or 700R4
When comparing the 4L60E and the 700R4, it ultimately boils down to your specific needs and preferences. The 4L60E is an electronically controlled version of the 700R4, offering more precise shift control and better adaptability to different driving conditions. On the other hand, the 700R4 provides a simpler mechanical setup, making it easier to work with for enthusiasts who prefer a more hands-on approach. Both transmissions can be effectively modified and improved for drag racing, so it’s a matter of personal choice and availability of aftermarket support.
The 700R4 transmission can indeed be a good option for drag racing, offering a balance of strength, overdrive capabilities, and upgrade potential. With modifications and enhancements, it can reliably handle moderate to high power levels and provide the efficiency needed for street driving. Whether you’re running an LS engine or a high-performance small block, the 700R4 can be tailored to meet your drag racing aspirations. So, go ahead, grab that gear, and hit the strip with confidence!
Disclaimer: The information provided in this article is for educational and entertainment purposes only. Consult with a professional mechanic or transmission specialist for personalized advice and guidance based on your specific vehicle and setup.
