Thread: 2006 rxp with rxpx charger
08-28-2012, 09:26 PM #1
- Join Date
- Aug 2012
2006 rxp with rxpx charger
my 2006 rxp has a 2009 rxpx charger, 42 injectors, 4"air, stock ecu,
"what prop would anyone recommend???
08-28-2012, 09:43 PM #2
08-28-2012, 09:45 PM #3
untouched 14/19 will not be enough prop for that setup, Just did that exact setup on a buddies 06 rxp put a 14/19 on it and was all over the limiter. Sent it to erik to be repitched. I'd suggest a 15/20 and have it depitched.
08-28-2012, 10:00 PM #4
I have a 04 rxp with similar mods and its right at 8150 with a 15/20R and a 83mm nozzle in the heat.
08-29-2012, 09:05 AM #5
I had the same mods and put on a 15/20 with the rear air, my rpms were a little low at 7900-8000 but it pulled hard,
as soon as I put on the EX IC and RRFPR and AFR gauge my rpms were all over the rev limiter at 8250
did the valve sping upgrade and rotax racing ecu and with that 15/20 I am at 8500 all day in 98* heat
08-29-2012, 07:21 PM #6
Mine wouldn't pull a 15/20 with that set up. Hit 7800rpm-7900 in the cool air 7500-7700 in the heat.
08-29-2012, 07:23 PM #7
he prob runs high comp pistons
08-30-2012, 09:04 AM #8
- Join Date
- Sep 2009
my 04 with xcharger 4" kana,42's and 14/19 untouched pulled to 8150 on calm water last weekend. humidity was lower than usual for this time of year in NJ. still havn't gps'd it.
08-30-2012, 11:53 AM #9
08-30-2012, 01:43 PM #10
Do you know what prop you have on it now?
With your setup which is similar to mine, a 14/19 is mucho better for rec riding than the 15/20 IMO. Hole shot along with mid range punch is better with the 14/19. If you're only after top end and feel like repitching or sending it to get repitched then go with the 15/20.
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