LSx Crank Trigger

[lballog]

Has anybody put a Crank Trigger on an LSx before? I've killed the crank sensor two times now and want to switch it out. If so, where can I find one?

[andrewb70]

What's the exact mode of failure with your crank sensors? What's the engine combination? Andrew

[Danny Cabral]

Has anybody put a Crank Trigger on an LSx before?

Yes, have you Google searched "LSx Crank Trigger Kit"?

Program the Custom Ignition Parameters like this (4x crank trigger & 1x or 4x cam sync):
Ignition Type ............. ― "Custom"
Crank Sensor Type ..... ― "1 Pulse/Fire" (← Holley 554-118 crank sensor LINK.)
Sensor Type .............. ― "Digital Falling" (← Holley Hall-Effect sensor.)
Inductive Delay .......... ― "adjusted per application" (← Synchronization info.)
Ignition Reference Angle ― "60°"
Cam Sensor Type ........ ― "Single Pulse" or "GM LSx 4x"
Output Setup Type ..... ― "DIS Coil On Plug" (← Coil-Near-Plug Ignition.)
Dwell Time ................. ― "3.5-5.0 msec" (← Read end of page 3 - LINK.)

It's no longer an LSx application with a 4x crank trigger kit & Holley 554-118 crank sensor (LINK).
Scroll down to "Case 3: Using a 1 Pulse/Fire Crank Trigger with a GM LSx 4x Cam Pattern": http://forums.holley.com/showthread....m-Sensor-Setup (Crank & Cam Sensor Setup)
Scroll down to "Case 4: Using a 1 Pulse/Fire Crank Trigger with a GM LSx 1x Cam Pattern": http://forums.holley.com/showthread....m-Sensor-Setup (Crank & Cam Sensor Setup)
UPDATE: The new V4+ EFI software allows the Ignition Reference Angle to be changed from −360° to +360° BTDC on #1
cylinder. This also eliminates the requirement to alter the Firing Order in Ignition Parameters for some unusual applications.

[lballog]

Yes, I have.

[andrewb70]

Yes, I have.

You didn't say how your crank sensors are failing and what combination of parts you're using. The OEM crank sensors are incredibly robust and have proven to be very reliable. If yours are failing, something else is happening. Andrew

[lballog]

The system is an HP EFI, it's 16 volt, stock sensors from Holley. The first one was bad out of the box. The second one took awhile, about ten runs on it. The car popped around 7200 RPM, my rev limit is at 7400. I thought it might of just been a fluke until I checked the datalog, RPM signal dropped to 0 and injector duty cycle to 0. I tested it again and it did it at 5500 or so.

[lballog]

Danny, thank you for the information.

[Danny Cabral]

You're welcome.