Thread: C1 + boost clamp
09-07-2010, 04:27 PM #1
C1 + boost clamp
Can I add a C1 and a boost clamp to my ski and still have safe AFRs? I want my setup to be simple and I don't want to deal with a powershot or fuel pressure regulator. If the SHO engine runs rich from the factory won't the stock ECU be able to adjust for a little more air? Arn't there a bunch of guys in the Cayman Islands running bigger wheels without adding more fuel...
09-07-2010, 05:33 PM #2
You can run a C1 with no powershot, no FPR, and no reflash. It's says so right on R&D site and in the online store.
You can add in a reflash and still not have to worry about a FPR, or Powershot. You'll enjoy even better performance and no need to mess with fueling. The stock ECU is pretty smart, and even better once reflashed. Once the rev and boost limits are raised, when the ski sees more boost from the C1, it will add more fuel automatically with R&D's programming.
09-07-2010, 06:09 PM #3
- Join Date
- Sep 2007
- Gainesville, VA
I'm running the C1 and the R2 reflash, no powershot, no FPR, no fuel issues. I should have some new mph #s shortly as I finally got my 14/20 back from Impros. It's all shined up and ready to go!
09-07-2010, 06:27 PM #4
Also, the C1 with my bov should mean a very little chance of clutch failure (fingers crossed) and if Yamaha ever releases some upgraded clutch than it should be bulletproof
09-07-2010, 07:27 PM #5
I would recommend going with a reflash as soon as possible--even on a budget Mike. Getting off the limiter is key IMO. Added boost is great too.
Personally, I wouldn't spend the money on the clamp. Save for the reflash because you know you will have it at some point.
09-07-2010, 07:41 PM #6
09-07-2010, 07:51 PM #7
If you're currently at 7500 rpm, once you add the C1 and boost clamp, you should be pretty close to 7700, maybe even on the limiter. May have to add a little pitch to that 13/23. Maybe not. Just throwing that out there so you are ready for it if it happens.
09-07-2010, 08:03 PM #8
09-07-2010, 09:18 PM #9
It will be close. Get as close as you can to 7700 rpm without actually being on the limiter. Weather conditions will effect it but you can play around with exit nozzle size to correct that. Or run a fall/spring prop and a summer prop.
09-07-2010, 10:18 PM #10
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