Description
Description
**Fully remanufactured 7.3L Powerstroke Stock AD fuel injectors with better than OEM specifications and tolerances for longer injector life for trucks built after 12/07/1998 with California emissions.
Each Unlimited Diesel Performance Powerstroke fuel injector:
- Includes NEW Tungsten coated Plunger & Barrel assemblies
- Includes NEW Nozzles
- Has o-rings replaced, and new nozzle springs installed
- Solenoids are all inspected for proper resistance
- Cores thoroughly cleaned using a Pro Ultrasonics cleaning unit for a super clean injector body.
- Injector clearances reset to proprietary specs
- Is bench tested at a full range of RPMS and oil pressures
- Is backed by Unlimited Diesel’s limited lifetime warranty
Common Issues that require Powerstroke fuel injector replacement:
- Plugged Nozzles
- Blowby from Nozzle Pintle
- Scored Plungers and Barrels
- Broken Plunger Spring
- Broken Nozzle Spring
- Blown Internal Orings
- Blown External Orings
- Scored Poppet Valves
- Worn Armature Clearances
- Armature contacting solenoid
- Loose adapter plate screws
- Loose armature screw
- Shorted/open solenoid
*Fuel injectors are sold in sets of 8. Call for single fuel injector pricing. We use ONLY New Alliant Power External Orings, beware of cheap orings. We have had multiple customers call us with competitor products using inferior orings that have failed.
Core charge will be refunded provided your existing Powerstroke injectors do not have any external damage and are rebuildable.
STAGE 1
160cc/Stock Nozzles – These are entry level performance injectors. These injectors have the capability of producing 350RWHP with the proper tuning and supporting Modifications. These are a great improvement over the stock injectors for 94-97 model years, where the stock injectors were only maxing out at 98cc’s. Take your Old Body Style 7.3L Power Stroke to the next level of performance!
STAGE 1.5
160cc/30% Nozzles – Similar to the stage 1 with a slightly larger NEW nozzle. This injector is great for those wanting maximum power and lowest smoke with a stock turbo. This injector is great for towing and makes another 40HP over the stage 1 with similar EGTs under all conditions while doing so.
STAGE 2
160cc/80% Nozzles – The increased flow rate of the 80% nozzles are capable of producing more than 80 RWHP over our Stage 1’s. These injectors are great for a person that wants to use their truck for daily driving, towing, or just playing around on the street. You can
literally detune these injectors to run stock HP Levels or power levels of right at 400 RWHP. We recommend turbo and HPOP upgrades for these injectors, but it is not required. Custom tuning is required for optimal performance.
STAGE 3
238cc with either 80% or 100% Nozzles (Let us know what you prefer) – These are the ultimate towing/street/strip injectors!!! These injectors are capable of 500 RWHP, but can also be detuned to tow heavy loads with EGT’s less than 1250*F sustained! This is a great choice for someone who has installed an upgraded Turbo. Even with the size of these injectors, dual high pressure oil pumps are still not a requirement with proper tuning. Head studs are recommended if you are planning on running over 40 PSI of boost. Fuel pressure should be checked also to ensure at least 60 PSI. Custom Tuning required for optimal performance.
STAGE 3.5
275cc/100% Nozzles – With a slightly larger nozzle than the stage 3 as well as mild body modifications, this injector can support up to 550 HP while being completely street-able and tow as well. This injector works well with S467.7 to S475 with ported heads and a Head studs are recommended at this level and above. Fuel pressure should be checked also to ensure at least 60 PSI. Custom Tuning required for optimal performance.
STAGE 4
300cc/200% Nozzles – With a larger capacity more body modifications than the stage 3.5, this maximum street injector will satisfy those craving big street horsepower while still being streetable. I personally run these size injectors with our S467.7 and have made 650RWHP on fuel only. These injectors work great with a 471 or 475 and even better with the GTX4294 or 4202. Fuel pressure should be checked also to ensure at least 60 PSI. Custom Tuning required for optimal performance.
STAGE 5
450cc/400% Nozzles – This injector is custom built to suit your particular application and must be paired with the proper amount of airflow so that it makes more power than the stage 4. It is entirely possible to make less HP than the stage 4 injector when run with the wrong combination of airflow. Dual high pressure oil pumps, fuel systems, head studs, BIG Turbo(s), heavy duty drivelines, and CUSTOM tuning, are not a recommendation, they are REQUIRED!!
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