Injector Rail

[Chris26]

Any other options on "good" injectors???

[Demps]

I have had very good results with Accel 21lb injectors

Ted

[Paul Workman]

Excellent results w/ Accel (150821 from Summit). Purchase new Viton (sp?) O-rings from Jerry's Gaskets.

FIC, a supporting vendor: Ask Jon for new stainless injectors kit (includes gaskets and O-rings from Jerry's too. I've no personal experience w/ these, but those that do, seem to like them fine.)

[XfireZ51]

The RCs are rated 20lbs @43.5 psi, which is 10% less than what the stock calibration is using (22.7lbs) for calculating pulse width. Additionally, the electrical characteristics of the RCs very likely different from the Bosch. I believe RC can provide the Injector Offset v Batt Voltage values for their injectors.
Technically speaking, you would want to make those changes to the calibration
and see how close the stock VE tables are at that point. It will also have an effect on WOT tune.
And yes I know that people have been using RC injectors or other non-stock injectors without having made those changes.

[Hib Halverson]

RCEngineering injectors for LT5s are available in a couple of different flow ratings.

I see some people here are using the SL4-205s.

I used the SL4-210s in the 500-hp, Automasters Street Skinner engine I had in Barney. At 43.5-psi they flowed 200-202 CCs per minute.

[Chris26]

How about bosch???

[Racinfan83]

Marc Haibeck put Accel injectors in mine. That is pretty much all the endorsement I would need to use those again..

[tpepmeie]

Originally Posted by XfireZ51

The RCs are rated 20lbs @43.5 psi, which is 10% less than what the stock calibration is using (22.7lbs) for calculating pulse width.

Don't forget the rail pressure is regulated to 350 kpa (50.8psi) not the standard 43.5psi rating pressure. That brings the injector flow capability closer to the calibration value.

[Chris26]

accel vs RC????

[XfireZ51]

Originally Posted by tpepmeie

Don't forget the rail pressure is regulated to 350 kpa (50.8psi) not the standard 43.5psi rating pressure. That brings the injector flow capability closer to the calibration value.

Todd,

For purposes of comparison, aren't the Bosch injectors rated at 43.5?
Using a 50.8psi fuel pressure brings flow for the RCs to 21.5.
Not sure that the calibration value is at a 50.8psi. You might be able to shed more light on that.

Chris,

I've had the same Accels in my motor since 2007 and they continue to operate without any hiccup. Although the Accels are rated at 21lbs @43.5psi, I had one tested and it flowed 20lbs @43.5.
This has its greatest effect on idle and low pulsewidth situations.The voltage bias (which is not available from Accel) is also different from the stock Bosch. The injector also tested linear down to 1.5ms.