Results 1 to 2 of 2
  1. #1

    modifying oil pump on high boost/rpm motors? accusump?

    hi guys,

    do highly modified engines need a bigger oil pump/modification?

    my mechanic spoke about shimming a part of the pump (not sure what that means)

    my motor is still being built so i dont know if i have an oil pressure problem yet but would like to build the motor for longevity/endurance.
    has anyone used an 'accusump' before? seems like a good thing to have.

  2. #2
    SLAP~YA's Avatar
    Join Date
    May 2013
    Sunshine Coast, QLD
    He would be referring to the pressure relief valve you can shim them to adjust the oil pressure at certain rpm. Its not such common practice these days as most pumps are made more than efficient enough. I wouldnt worry about it the sho motor pulls over 60psi from about 3000rpm plus the advantage of the dry sump style setup from factory these motors arent gonna runout oil
    prime example Keith Salles 111mph and still turnin it up.

  3. +1 by:

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. How do I bleed the oil pump on a '98 XL1200
    By wakehopper in forum Yamaha How To & FAQs
    Replies: 3
    Last Post: 11-10-2010, 10:40 AM
  2. variable speed oil pump on 94 650?
    By ujustlost in forum Polaris Open Discussion
    Replies: 5
    Last Post: 07-04-2009, 05:18 PM
  3. oil pump on a 97 sltx
    By grifter in forum Polaris How To & FAQs
    Replies: 1
    Last Post: 06-21-2007, 02:08 PM
  4. Oil pump on genesis??
    By texoma in forum Polaris How To & FAQs
    Replies: 3
    Last Post: 06-18-2007, 05:06 PM
  5. Missing Oil Pump on 06 models
    By bic1 in forum 4-Tec Performance
    Replies: 3
    Last Post: 03-05-2006, 03:15 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