Thread: Mini Rude 48's or 42's
04-03-2012, 02:35 PM #1
Mini Rude 48's or 42's
Running a mini rude on an RXP with Bosch 48's and the A/F at idle and mid range is too rich. Want to keep this ski simple, as anybody run the mini rude with 42's and if so what A/F did you see.
04-03-2012, 04:35 PM #2
****This was observed on an 06 RXP, FIZZLE IC, MR, 42's,48's (Bosch) Riva RRFPR, 4" intake and other supporting mods on a stock ECU. So we decided to switch back to the 42's because of the base pressure dipping into the mid to upper 30's with the 48's****
Last edited by MSRXP; 04-04-2012 at 10:18 PM. Reason: Ski Type and Mods done....
04-04-2012, 09:25 AM #3
What ECU?, and what reg u running? i would keep the 48"s and run a BEGI with it!!
04-04-2012, 01:05 PM #4
I ran 42's with the X SC, and 48's (and now 50's) with the MiniRude on a rrfpr.
04-04-2012, 03:45 PM #5
04-04-2012, 04:46 PM #6
Running Riva ECU and Aeromotive RRFPR at 56Psi with ref line. WOT 11.5 Idle is around 10.1
I was thinking 42's may give me a leaner idle and mid range.
04-04-2012, 04:51 PM #7
04-04-2012, 05:01 PM #8
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04-04-2012, 06:15 PM #9
The Bosch 48"s flow more fuel at low pressure than the Riva 50"s hence why they can be a bit rich at idle and mid range , So running a RRFPR helps to take some fuel out at idle a mid but its still not enough . I run a Riva with 48"s myself!! Your AFR looks similar to mine with my B kit before i installed the BEGI. The Begi trimmed everything up perfect and it is so easy to tune on the day if required.
04-05-2012, 02:22 AM #10
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