02-13-2011, 10:20 PM #1
- Join Date
- Feb 2011
i have a yamaha fx sho a made the cheap air intake and a cheap fre flow exaust and have a riva intake grate,riva ride plate solas 13/22 impeler seal pump kit and aintake manifold ring is runing 69.8 gps i weigh 260 and with a full tank.my friend is 225 and it runs 70.0 i heard tha if i put a r&d intake grade will run 2 more miles its that true.
02-13-2011, 10:32 PM #2
Not true to the best of my knowledge. You will need a RIVA VIPEC ECU, it will unleash fifty horse powers and you will pick up a few miles an hour. If for some reason you can't afford the ECU you can always get an R&D ECU reflash service, this route will require some fine tuning calibration tho. Good luck and take care, Julio...
02-13-2011, 10:35 PM #3
It's also best to have the after market grate on any modified skis. The stock grates can cause some unsafe conditions if the ski is pushed past stock speeds.
02-13-2011, 10:36 PM #4
02-13-2011, 10:38 PM #5
02-13-2011, 10:42 PM #6
I know not the same ski but I gained 1.4 MPH when going from the Riva grate to the R&D
I have not tested the new SS Riva grate so it may be different
02-13-2011, 11:13 PM #7
02-13-2011, 11:56 PM #8
Do you mean R&D intake grate, or ride plate? The R&D ride plate is supposed to increase top speed by 2 mph. I just tried mine out with the R&D ride plate, and the top speed and handling improvements were noticeable, but I did not GPS it to see exactly how much I gained. I also changed the impeller at the same time, so the gains are from a combo of the parts.
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