Thread: Discussion about RxpX Mods
12-01-2008, 08:21 AM #1
Discussion about RxpX Mods
Is it better( the most incrise of hp and performance) to change in an rxpx:
- the S/C impeller( which one is the best?) with a stock rxpx OR
- put new piston in the engine custom made with a increase of cc of 50cc each one( 1492+ 150cc) with a stock engine OR
- put a new rota ecu 8800 with riva valvetrain upgrade and new titan valves( which are the best titan valves?where to buy?)
What is your opinion?
12-01-2008, 09:26 AM #2
I wouldn't bother with replacing the pistons. The stock pistons are Mahle pistons and are very good pistons. You will see greater gains from increasing boost by modifying the supercharger and adding an ECU to increase RPM's.
You have several supercharger options and a couple of ECU options.
You can run the Riva or Rotax Racing X model supercharger upgrades with either the Rotax Racing or Riva ECU
Remember that with the Riva ECU you must use the 50 lb injectors and the Riva valve train upgrade.
With the Rotax Racing 08 ECU you must use the 60 lb injectors, Riva valve train upgrade AND lightweight valves. Ferrea is the top brand in valves and can be found here
If you want even more performance than the Riva or Rotax Racing supercharger upgrades can provide you can install a 2rude charger
The 2Rude supercharger will exceed the fueling capabilities of either the Riva or Rotax Racing ECU and will need to do the rising rate fuel pressure regulator upgrade as shown here
12-01-2008, 09:47 AM #3
Are these ferrera valves made in titan or stain??
Isn't better titan valves?
So the piston is not a good idea....
12-01-2008, 10:02 AM #4
12-01-2008, 10:06 AM #5
12-01-2008, 10:08 AM #6
12-01-2008, 11:55 AM #7
I am running the rotax 8800 and the 2rude...
I have to run a rude fuel controller and piggy back a rrfpr...
It hauls ass!!! And its safe to run...
If you get these parts, you will be very fast!!!!
12-01-2008, 12:26 PM #8
Do you have some data? Speed? Do you have a rxpx?
12-01-2008, 12:38 PM #9
In a rxpx i can buy the whole 2 rude sc or only the impeller to put inside my x sc? I can put only the 2 rude sc in my px with stock rxpx and rffr?
12-01-2008, 12:53 PM #10
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