Thread: X Charger Upgrade
07-02-2010, 04:32 PM #1
X Charger Upgrade
Ok, so the weather finally stopped raining and I get out to test the Riva X charger Upgrade and 50's that I installed.
Here are the stats
08 RXPX, 4" air, FA removed, R&D grate, 83mm nozzle, wedge, ride plate modded, 15/22 modded by Speedfreaks. Top speed 77.4
Added the X charger upgrade and 50's. Top speed 72.8
I had my exhaust manifold drilled and tapped for AFR.
idle = 13.5
mid = 12.6
around 6500 rpm = 11.5
6500 to wot = 10.8
When I saw the 10.8 I did not hold it there long the ski might have been faster but did not want to chance it. 10.8 is to lean right?
The power is there. There is a slight bog when I stab it from an idle, but it pulls much harder than before. I can feel it pull harder all through to top end. I have the Rude fuel controller that I will put back on and see if I can get it to connect to my laptop and try to add some fuel to the wot.
07-02-2010, 04:35 PM #2
Sounds like you are running Rich, lower your RRFPR or try out 48's.
And how the AFR's work is: The lower the # the richer you are
The Higher the # the leaner you are.
07-02-2010, 04:37 PM #3
BTW, you want to be around 11.9 AFR at WOT.
07-02-2010, 04:39 PM #4
Yea, duh. I feel like a dumb ass. I was so concerned about running lean thats all I could think about.
07-02-2010, 04:42 PM #5
No problem, good luck with the upgrade. I just upgraded to an ET wheel and spacer and Les ECU. Lets see how that goes.
07-02-2010, 04:47 PM #6
07-02-2010, 06:52 PM #7
07-02-2010, 07:14 PM #8
- Join Date
- Nov 2007
- Branson, MO area
You wont hurt it at 10.8 that is way rich. The number is measuring air lower number less air. Less air = richer.
07-02-2010, 08:04 PM #9
Do you or dont you have a rrfpr ?????
if you add a rrfpr you wouldnt need the 50's
07-02-2010, 08:44 PM #10
No rrfpr. I have a Rude controller that I thought I would use to line this stuff out, but I could not get my computer to talk to it last week so I took it off. I will put it back on and try again.
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