EFI Systems
#11
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Mike do your research as I know you will however I spent a couple hours on the subject with dick from more power over the weekend on the subject. Guess that tells you what I had up my sleeve with new builds.
#14
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FiTech you can not run with out a 02 sensor, to me this is a deal breaker for marine.
I personally run Holley HP EFI on a GM ls twin turbo in a boat, the 02 sensor and self learned worked great to tune it in, actually was really easy, but after awhile it started reading lean(richened up the motor) I have since set my base tune back to what it first learned and turned self learn off. Seems to run just fine. This can not be done with FiTech.
My 02 sensor were pre-turbo and I have dry exhaust to the tips, and they still would get a tiny bit moisture.
I cant speak for FiTech cost, but Holley HP efi with the harness was $1500 and I use the 8" digtail dash which was another $750. Well worth the money. I think I have about 10-12 hrs into the tune and I bet half that was getting the idle quality right, so when it went in gear and lugged the motor down it wouldn't die, but wouldn't hunt when in neutral.
I personally run Holley HP EFI on a GM ls twin turbo in a boat, the 02 sensor and self learned worked great to tune it in, actually was really easy, but after awhile it started reading lean(richened up the motor) I have since set my base tune back to what it first learned and turned self learn off. Seems to run just fine. This can not be done with FiTech.
My 02 sensor were pre-turbo and I have dry exhaust to the tips, and they still would get a tiny bit moisture.
I cant speak for FiTech cost, but Holley HP efi with the harness was $1500 and I use the 8" digtail dash which was another $750. Well worth the money. I think I have about 10-12 hrs into the tune and I bet half that was getting the idle quality right, so when it went in gear and lugged the motor down it wouldn't die, but wouldn't hunt when in neutral.
#16
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Innovative makes a bung extender that dramatically protects the bung. I'm running a wideband and if it survives the season I'm going closed loop next year, but I'm keeping my wideband working in the other header to monitor things. If the FI sensor craps out I can use the other one to get home.
![](http://i622.photobucket.com/albums/tt308/1Rooster/Boat/33D6DA2E-EAE0-41E5-B0AF-452060A1E833.png)
![](http://i622.photobucket.com/albums/tt308/1Rooster/Boat/33D6DA2E-EAE0-41E5-B0AF-452060A1E833.png)
#19
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#20
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I have 5 inch exhaust on my blower motors and you fight sucking back outside air at idle giving you false lean readings on the o2s. If your putting the o2s before the turbos the problem may not exist. I run the Holley Dominators systems with the new v4 software and it works great in closed loop above idle. Also the NTK o2 sensors are more durable than the bosch imo.