Replacing Fuel Injectors: Corvette 85 Edition

how to replace fuel injectors on 85 corvette

Corvette owners may need to replace their fuel injectors if their vehicle is experiencing issues such as poor fuel consumption, loss of power, or misfiring. The process of replacing fuel injectors on an 85 Corvette involves removing or loosening the runners, taking off the plenum, and addressing fitment issues with a billet adapter. It is recommended to replace the gaskets and to use an adjustable regulator. The stock injectors for an 85 Corvette are 24lb@35psi, but 22lb injectors can also be used.

Characteristics Values
Stock injector size 24lbs@35psi
Alternative injector size 22lbs
Year of Corvette 1985
Corvette model L98
Corvette engine 5.7/350
Corvette type C4
Part number 280150943, 0280150939, 0280150909, 0280150943, 0280150556

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The stock injectors for an 85 Corvette are 24lb@35psi

When replacing fuel injectors on an 85 Corvette, it is recommended to get Ford SVO #24s and an adjustable regulator. The Ford injectors are known to work well with the Corvette and can provide the required fuel flow rate and pressure.

It is also important to consider the fuel pressure regulator when replacing the fuel injectors. An adjustable regulator can help fine-tune the fuel delivery system and ensure that the injectors are receiving the correct fuel pressure.

Additionally, when replacing fuel injectors, it is crucial to verify the injector size and type before purchasing. The injectors should match the original equipment manufacturer (OEM) specifications for the 1985 Corvette to ensure proper fitment and performance.

Furthermore, it is recommended to regularly clean the fuel injectors to maintain optimal performance. Cleaning the fuel injectors can help remove any impurities or carbon deposits that may build up over time, improving fuel efficiency and engine performance.

By following these guidelines and selecting the appropriate fuel injectors and regulator, you can ensure that your 1985 Corvette maintains its stock performance and runs smoothly.

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You can get Ford SVO #24s and an adjustable regulator

If you're looking to replace the fuel injectors on your 1985 Corvette and want to keep it stock, you can get Ford SVO #24s and an adjustable regulator. This combination will provide you with the correct fuel injector size and allow you to fine-tune your fuel pressure.

The Ford SVO #24 injectors are specifically designed to work with your 1985 Corvette's fuel system and will ensure the correct fuel delivery rate. They are rated at 24 lb/hr and 35 psi, which is the standard specification for your car.

Additionally, by installing an adjustable fuel pressure regulator, you can fine-tune the fuel pressure to ensure optimal performance. This regulator will allow you to make adjustments without removing the vacuum line, as the adjustment screw is separate. It is designed to closely resemble the factory fuel pressure regulator in format and size, ensuring a proper fit.

When purchasing the Ford SVO #24 injectors, it is recommended to acquire them from reputable suppliers such as Jegs or Mid America Motorworks. These suppliers offer high-quality products that meet or exceed original equipment manufacturer (OEM) standards.

By combining the Ford SVO #24 injectors with an adjustable regulator, you can maintain the stock configuration of your 1985 Corvette while optimizing its performance and fuel efficiency.

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Bosch Design 3 fuel injectors are 0.125 inches shorter than the standard Rochester/Multec TPI injectors

When replacing the fuel injectors on a 1985 Corvette, it is important to consider the different types and sizes of fuel injectors available. The Bosch Design 3 fuel injectors are a popular choice for Corvette owners, offering a flow rate of 22.3lb per hour or 232cc/min at 43.5 Psi. However, it is crucial to note that these injectors are 0.125 inches shorter than the standard Rochester/Multec TPI injectors. This difference in length can lead to fitment issues, and it is essential to address them to ensure proper installation and engine performance.

To resolve the length discrepancy, SouthBay Fuel Injectors has designed a billet adapter that can be pressed onto the bottom of the Bosch Design 3 injector. This adapter ensures that the injector's length from o-ring to o-ring matches that of the stock OEM/TPI injectors. By using these adapters, you can achieve a secure fit and maintain the proper sealing of the injectors within the intake manifold and fuel rail.

Some Corvette owners have also suggested using a double o-ring setup as a solution to the shorter injector length. This involves placing an additional o-ring in the injector groove above the lower ring. However, it is important to note that this method may not provide the same level of security as the billet adapters.

It is always recommended to consult with professionals or specialized forums to ensure that you are selecting the correct fuel injectors and addressing any fitment issues appropriately.

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You can buy 22lb/hr 5.7L 5.0L Corvette Camaro 85-92 fuel injectors on Amazon

If you own an 85 Corvette and are looking to replace your fuel injectors, you can buy 22lb/hr 5.7L 5.0L Corvette Camaro 85-92 fuel injectors on Amazon. Here is some information about the product:

The IXGKHC 8X Fuel Injectors are designed for GM TPI 22lb/hr 5.7L 5.0L Corvette Camaro 85-92 models. They are made from quality materials that meet or exceed OEM standards and are rigorously tested before leaving the factory. These injectors promote smooth engine operation and balanced fuel delivery, reducing overall fuel consumption. They are a direct replacement for proper installation and easy mounting.

The injectors are priced at $93.14 for a set of 8 and come with a warning about California's Proposition 65. They have received mixed reviews, with an average rating of 3 out of 5 stars. Some customers have reported issues with the injectors not fitting their vehicles or causing engine problems, while others have found them to be helpful and a great value for the price.

There are also other options available on Amazon for 22lb fuel injectors compatible with the Camaro Corvette Firebird 5.7L TPI engine. These include:

  • 8pcs 22LB Fuel Injector for $66.68, with a manufacturer part number of 0280155700 0280155710 and an interchange part number of 0280155700, 0280155703 M02710X8.
  • Pack of 8 22LB New Fuel Injector for $65.99, with the same manufacturer and interchange part numbers as the previous option.

Be sure to carefully check the part number and your vehicle's information before purchasing any fuel injectors to ensure a proper fit and compatibility.

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CorvetteForum is a great resource for Corvette-related queries. For instance, if you're looking to replace the fuel injectors on your 85 Corvette, you can find a wealth of information on the forum.

One user on the forum, with the same car model as you, asked about the size of injectors they would need for their stock 85 Corvette. Many forum members responded with detailed information about the size and type of injectors required. Some members also offered advice on where to purchase the injectors at a good price.

Another user on the forum sought help with their 1985 C4 Corvette, which was experiencing issues with the injectors. The car would only start when fuel was poured directly into the throttle body. Forum members offered a range of possible solutions, from checking fuel pressure and testing the cold start injector to purchasing a factory service manual for more in-depth troubleshooting.

The forum is an excellent place to seek advice and guidance on Corvette-related issues, with members sharing their knowledge and experience to help others. It's a valuable resource for anyone looking to maintain, repair, or restore their Corvette.

Frequently asked questions

The stock injectors for an 85 Corvette are 24lb@35psi.

Yes, 22lb injectors are also compatible with the 85 Corvette.

Replacement injectors can be purchased from online retailers such as Amazon or CorvetteForum.

Yes, you will need a T40 torx screwdriver.

Yes, it is recommended to replace the gaskets for the runners/throttle body at the same time.

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