Thread: Lets talk RRECU
06-13-2006, 07:37 PM #1
Lets talk RRECU
RR reflashed ECU?
Do you like it? Is it worth it?
Can the new RR Impeller be run with it alone? Or 50lb injecters needed?
I want to hit the 80 mark and am a little shy of 73 all the time now in 100degrees and a basic stgII with RRIC. But I think my 14-19r is holding me back.
Would yall think that the New flasjh RRECU would work with 50lb injecters and Rivas new SCer?
I ask all input as I am gonna pull the trigger on a new ECU Riva or RR, but I really want 80solid with a half tank of fuel...
06-13-2006, 08:39 PM #2
I'm a bigger guy like you and I'm at 75 MPH with the new RR ECU and RR SC impeller in the heat. I think you might be a little faster with the Riva IC than the Rotax, but to hit 80 in the heat you need to go into the engine, imo.
I think Brendan was the only non EMS RXP to hit 80 at the Bug and he has the B Kit, 50lb injectors, RR cam, etc.
06-13-2006, 08:41 PM #3
I forgot about Stan, but he has a lot of stuff too. Not to mention he weighs like a buck o five and knows how to ride a ski better than 99% of the people out there.
06-13-2006, 09:08 PM #4
So the Riva Stg III probably wouldn't get me there either???
Do I need bigger injectors? 42's or 50's?
06-13-2006, 09:14 PM #5
Here's my latest numbers from the Bug with the mods I have. Keep in mind, I am just over 300lbs.
Rotax Racing Reflashed ECU & IC
Rotax Racing SC Impeller
Riva High Flow Hood
4inch intake direct to SC
Riva Grate/Riva Pro OPAS B/Os
PPG Power Pipe
SS Wear Ring
Rideplate holes filled
Trimmed Reverse Bucket
Date June 10th 2006
Altitude: 0 ft. (Mudbug)
Air temp: 95
Water temp: 87
Fuel: 2 bar
Oil: 1/2 on notch
Prop: Green Hulk Solas 15/20 (de-ptiched)
Max RPM: 8350 (8400 blip)
Boost: Between 9.5-10
Peak Speed: 75.6
Right now everyone is saying you need the 42lb injectors with the RR SC Impeller to be safe. I don't know what the Riva will do. 80-81 sounds like a good guess to me for the Riva Stage3 numbers in good air with an average rider, but not with me on it and definitely not with me on it in the heat.
06-13-2006, 09:24 PM #6
Ok, so I am looking for a 15-20 to depitch and not gonna do the RR new impeller yet. Keeping the original riva impeller and gonna go new RR ECU now. Wait for the Riva SCer and 50lb injecters.
DID your new Flash Rip????
Thanks for taking the time to post. Lot of readers and no one posting ...
06-13-2006, 09:31 PM #7
I feel like I gained 1.5-2 MPH with the reflash. Felt like some midrange as well. I felt like it was a good, easy gain for the price Mark charged.
06-13-2006, 09:37 PM #8
Did you sell your Riva Tube???
If not I need it for my wifes RXP... :P yea, I bought it for her.
She was pulling 69's with a 1/3 tank easy....
06-13-2006, 09:41 PM #9
I agree I found a pretty good acceleration difference with the re-flash ecu
06-14-2006, 12:39 PM #10
- Join Date
- Jan 2006
- Puerto Rico
Austin, which RR ECU you are gonna buy, the (4501) or the (4502)?? before you buy one "REMEMBER" what i told you in my PM
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