Thread: X charger Setup-RXT-Help
01-05-2013, 02:53 PM #1
X charger Setup-RXT-Help
I would like to go to an x charger setup and was wondering what i would need to accomplish this. What speeds would i be seeing with this setup. My current setup is an 05' RXT(210 HOURS) with a 13/18r prop, xs intercooler, 4" intake, TDR waterbox, 2.5 Degree Wedge, and Riva Opas Block Offs. I currently have 42's but are not in the ski.
01-05-2013, 02:57 PM #2
You will need to put the 42s in,youwill need to buy a RRFPR (Rising rate fuel pressure regulator)with tank adaptor,A way of metering/Adjusting your AFRs(Air Furl ratios)and a 14/19 prop with some minor tweeking on it.....Depending on how many hours on the machine i would replace the fuel pump and filters while you are in the process of doing this also...
01-05-2013, 03:01 PM #3
how much does a basic AFR setup cost. I know that you have to tap the exhaust manifold and wire it all up. How hard is it to setup a RRFPR and would i want the walbro pump?
01-05-2013, 03:07 PM #4
they are not hard at all to do,you just want to go slow and make sure you do everything correctly as you are playing with fuel....This is a simple kit that comes with everything needed for the RRFPR setup:
As far as fuel pumps??Yes the Walbro is perfect for your ski...YOu can find replacement filters at Summit...i have the numbers if you want them.
and for a AFR setup??This is what i run on my ski,simple and easy to read/install:
And then of course you will need your J-pipe bunged for the 02 sensor
01-05-2013, 03:40 PM #5
01-05-2013, 03:49 PM #6
01-05-2013, 10:25 PM #7
01-06-2013, 08:25 AM #8
I can't believe your craft moves lol. Get a SS LINED wear ring but before anything else, switch your valves or swap your head to one with better valves. I found an 06 with proper valves for $275. Not all 06s come with good valves and you'll need to check the stem for #s. Check the sticky in this forum about valves
01-06-2013, 09:48 AM #9
- Join Date
- Jul 2005
- Lake Dunlap, Texas
WOW--Have I ever been missing the boat (no pun inteded) I have a 2007 RXT and I have been running with the following mods (over 100 hours) X charger with the Riva upgrade wheel--Riva rear air kit for a RXP--Riva ECU--external intercooler--untouched 15/20 prop--Les Cooke retainers only--stright pipe from water box to resinator--and ONLY mod to fuel system is 50 lb injectors. After reading above posts maybe I should do more mods to the fuel system??? What is my current setup hurting with just 50 lb injectors? On a 80 degree day I can turn 8620 RPM which my GPS say is 76-77 MPH. (exhaust manifold bell is mint)
01-06-2013, 05:21 PM #10
Sundance, I'm sure you're alright. The riva ecu can compensate for up to 14psi I believe. You are probably around 13 or so.
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