How do I know what size my fuel injectors are?

Fuel Injectors are sized by their flow rate. Flow rate is a measurement of how much fuel can be delivered over time. It is listed in pounds per hour (lbs./hr.) or cubic centimeters per minute (cc/min.). The right size injector can supply enough fuel under full load conditions at an 80% duty cycle.

How much HP will 120lb injectors support?

Rated injector flow: 120 lb/hr @ 43 PSI. Supports up to 1900 horsepower.

How many cc is a 52lb injector?

550 cc/min
Bosch 52 lb/hr (550 cc/min) Fuel Injector.

What size injectors does a 6.0 LS have?

6.0L LQ9 with 8.1L ( 30lb ) Injectors.

What size are LS6 injectors?

Interestingly, in the 19 years between TPI and LS1/LS6 engines, fuel injector length (measured between the O-rings) stayed around 2.5 inches. It wasn’t until 2005’s LS2 engine that they started getting shorter, at 2 inches. And the LS3/LS7/LS9 injectors were smaller still, at only 1.5 inches.

How much HP can 800cc injectors handle?

Based on ATS’s website (http://www.atsracing.net/ats_racing_fuelmods.htm), it said that the same size 800cc will give approx. 460whp. I can see how roughly 540 flywheel hp converts to roughly 460whp after transfer. For rough figuring on a 4 cylinder engine, HP is about 2/3 of injector cc.

What are the different sizes of Bosch injectors?

What size are my injectors? Typically injectors come in three sizes; 34, 48 and 60mm. These measurements are taken from the top of the lower O-ring to the bottom of the upper O-ring. Pictured below are three common injector types/sizes; (L to R) ID850/1300/2000 (34mm), ID725/1000 (48mm), EV1 Bosch 1680 (60mm).

What kind of injector does Cathedral Port LS use?

Combined with the accompanying images, the chart is probably the easiest way to differentiate and make sense of all the different GM injectors. All cathedral port LS engines use the same injector spacing which allows using aftermarket fuel rails like this Holley.

When did Bosch multi point injectors first appear?

We’ll begin with the earliest Bosch style multi-point injectors that first appeared in the GM TPI engines around 1985. These injectors are physically the largest and tallest of all the GM injectors. These units are becoming less popular now mainly because they don’t deliver the high flow rates now demanded by today’s more powerful engines.