This isn't really a modification most do at home, but it has to be the most popular one for new bikes. The bike is transformed into a precision racing beast when it's derestricted (its true form). This is generally the first thing everyone has done post-delivery. Usually you need to have a dealer do it— they remove the exhaust baffle cones and throttle stop, and remap the ECU (very important!). Alternatively, you can buy a TuneBoy ECU reprogrammer and do it yourself, guided by engine tuning 101.
Reroute Vent Hoses to Catch Tank(s)
From the factory, the various vent hoses purge into the airbox. This means that oil probably will end up in your airbox, which is not a good thing. You'll want to replace those hoses with clear hose, so you are able to see if oil is being purged when it shouldn't be, and where it's coming from. Additionally, you should install a catch tank (or two, if you would like to monitor gearbox and engine oils separately) and route the vent hoses there rather than the airbox. Bonz makes a nice catch can. Pics to come.
Proper Crankcase Hose/Wire Routing
Ensure the crankcase hose and wire are not routed near the sprocket/chain, as they can be easily damaged. This is what they should look like:
Iridium Spark Plugs
Iridium spark plugs will make your bike start easier and run cleaner. Replace the stockers with NGK CR8EIX plugs.
A single or dual stage foam filter, for the sxv or rxv, respectively, will improve intake airflow. Pairing this with a better exhaust can lead to significant power gains. Dyno chart to come.
Tuning the Engine Control Unit (ECU)
- TuneBoy (stock ECU reprogrammer for fuel maps, ignition timing, etc.)
- DynoJet PowerCommander (piggyback unit for fuel map tweaking)
NOTE: The vdB maps are meant for only vdB engines and may damage a standard SXV engine. Therefore, I have password protected those maps to prevent owners from unintentionally destroying their bikes. If you understand what you're getting into, contact me on ApriliaForum for the password.
|14018Tune.dat||TuneBoy||standard exhaust (de-restricted)|
|14019Tune.dat||TuneBoy||standard exhaust (restricted), for use with 95 RON and 85 MON fuel (USA)|
|14020Tune.dat||TuneBoy||standard exhaust (restricted), for use with 100 RON fuel (Japan)|
|15017Tune.dat||TuneBoy||standard exhaust (de-restricted)|
|15018Tune.dat||TuneBoy||standard exhaust (restricted), for use with 95 RON and 85 MON fuel (USA)|
|15019Tune.dat||TuneBoy||standard exhaust (restricted), for use with 100 RON fuel (Japan)|
|SXV 450 (v.d.B.)|
|14022Tune.zip||Aprilia-SXV.de||Arrow exhaust (rev. limiter: 13,000)|
|SXV 550 (v.d.B.)|
|15021Tune.zip||Aprilia-SXV.de||Arrow exhaust (rev. limiter: 12,500)|
|24020Tune.dat||TuneBoy||standard exhaust (de-restricted)|
|24021Tune.dat||TuneBoy||standard exhaust (restricted), for use with 95 RON and 85 MON fuel (USA)|
|24022Tune.dat||TuneBoy||standard exhaust (restricted), for use with 100 RON fuel (Japan)|
|25016Tune.dat||TuneBoy||standard exhaust (de-restricted)|
|25017Tune.dat||TuneBoy||standard exhaust (restricted), for use with 95 RON and 85 MON fuel (USA)|
|25018Tune.dat||TuneBoy||standard exhaust (restricted), for use with 100 RON fuel (Japan)|
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