Results 1 to 8 of 8
  1. #1
    SpeedJunky's Avatar
    Join Date
    Dec 2005
    Location
    Michigan
    Posts
    1,118
    +1
    35

    R&D Power Shot EFI ?

    Anybody know how this new unit differ's from the one we are all using now. I notice there are no pots to turn and the R&D description says 10 minutes to tune, wouldnt that be nice.

    http://www.rd-performance.com/catalo...%20Controllers


  2. #2
    2000 GPRXP 4tec shooter98xpl's Avatar
    Join Date
    Dec 2005
    Location
    Charleston SC
    Posts
    2,717
    +1
    3
    They have an add or minus for fuel. Probably have to run it at a certain rpm and add fuel or take away, but thats just a guess.
    SHOOTER

  3. #3
    Too bad it only does fuel.... Whats the latest on the software being developed which alters timing also? Thats what im waiting on.. Bump up the timing when racing with race fuel, then back to normal when just cruising on pump gas..

  4. #4
    Hydrotherapy's Avatar
    Join Date
    Sep 2006
    Location
    The Rock
    Posts
    3,347
    +1
    17
    speed.. is that a row of l.e.d's on the unit..could they be a lean/rich meter..if so is there a sensor they could have taken a reading from
    would take out a lot of guess work out of the riva unit

  5. #5
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    The only way to read AFR is with a sensor in the exhaust... Unless they use the reading from the cat temp sensor.

    It may work... who knows if better or worse that the Riva controller. $450 something tho...

    I will wait for Mac and Advent, unless someone else wants to test it.

  6. #6
    Hydrotherapy's Avatar
    Join Date
    Sep 2006
    Location
    The Rock
    Posts
    3,347
    +1
    17
    Quote Originally Posted by WFO View Post
    The only way to read AFR is with a sensor in the exhaust... Unless they use the reading from the cat temp sensor.

    It may work... who knows if better or worse that the Riva controller. $450 something tho...

    I will wait for Mac and Advent, unless someone else wants to test it.
    readings from cat temp sensor would be two moist unless you used a 4 wire lamber sensor with the 12v supply to pre heat.. got to find out about the unit and how flexable it is, if not row of lean/rich l.e.d's may be 1 to 8 mode lights which may make it more adjustable than riva unit..
    WFO... any news on how long the mac or advent will be

  7. #7
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    A traditional O2/heated O2 will not last (for long) due to the conditions in the exhaust... the heater just put it into closed loop sooner than a traditional galvanic generator.

    If one could decifer the readings generated by the cat temp sensor, you may have some fuel control. (in theory)

    any news on how long the mac or advent will be
    I understand the Advent is being tested now...

    Macs ECU real soon

  8. #8

    Join Date
    Oct 2006
    Location
    UNITED KINGDOM
    Posts
    160

    lambda sensor

    this system has already been tried and tested on two strokes.they are running an o2 sensor in all of the exhaust ports where the sensors control a sequetial fuel injection system and each cylinders afr can be controlled individually. i dont think ski,s are qiite there just yet.as i said to salty earlier why not use an automotive control unit with infinate adjustment and software changes available.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. FS R&D Power Shot EFI Fuel Tuner for GP1300R
    By smacota1 in forum Yamaha Classifieds
    Replies: 2
    Last Post: 04-29-2011, 08:18 PM
  2. R & D Power Shot
    By skoepp in forum 4-Tec Performance
    Replies: 3
    Last Post: 01-04-2008, 05:30 PM
  3. R&d Power Shot
    By Gj#6 in forum Yamaha PWC Performance (4-stroke)
    Replies: 5
    Last Post: 12-09-2007, 12:46 PM
  4. R&d Power Shot
    By Gj#6 in forum Yamaha PWC Performance (4-stroke)
    Replies: 0
    Last Post: 10-29-2007, 12:48 PM
  5. R&d Power Shot Ajustable Fuel Tuner For Sea Doo Rxp
    By XRIDER in forum 4-Tec Performance
    Replies: 5
    Last Post: 12-20-2006, 10:30 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •