09-26-2008, 09:59 PM #1
Riva Racing ECU Compatibility with RXP-X?
hi this is my first posting and i'm not sure if this question has been asked before but i can't really find a relevant thread, so...
i'm interested in purchasing the Riva Racing ECU (RS11850-01-C) with the 50lb injectors, plus the valvetrain upgrade.
but i heard that the Riva ECU will run too lean. anybody have info/experiences with using this ECU on the X-boat?
09-26-2008, 10:19 PM #2
Too lean? I guess that depends on what supercharger you run. With the stock X charger or even a Rude Charger the Riva ECU and 50 lb injectors are fine.
09-26-2008, 10:24 PM #3
09-26-2008, 10:28 PM #4
09-26-2008, 10:44 PM #5
09-27-2008, 09:43 AM #6
You will still be okay with the 137mm drop in impellers.
If you ever go to a 140mm supercharger then you will need additional fueling in the form of a rising rate fuel pressure regulator.
09-27-2008, 09:51 AM #7
09-27-2008, 09:52 AM #8
Yup, your good.. actually I found with just the regular X charger I'm runing a tad on the rich side. So with a 137 or other rudextreme drop in wheel it would be perfect.
09-27-2008, 05:38 PM #9
in response to Green HUlk, could you please tell
1. what kind of PSI range the RIVA ecu can handle before it starts running too lean?
2. how do i measure the AF ratio? what is a safe AF ratio before the X-boat starts running too lean?
3. if i run the RIVA ecu, at what point will i have to use an RRFPR to prevent it from running too lean?
i hope these questions haven't been asked before, i'm just trying to do it the right way and hopefully post some awesome numbers.. appreciate your responses, thanks for your help!!
09-27-2008, 07:58 PM #10
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