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  1. #1
    StevoH@O's Avatar
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    Polaris 800 Virage custom with twin carbs - Oil Pump Question

    Hi crew. So I received my Octane 800 CC top end to go with my new Polaris crank that was for a 800 cc engine rather than a 700 cc which is what I ordered. Now the original oil pump has a single outlet which was fine for the original single carb feeding both cylinders. I only see single oil pump replacements or triple outgoing lines on ebay. So my dilemma:

    * assume that the single line model cranked out enough oil for 2 cylinders before, so go ahead and splice it with a "Y" fitting and run one line to each of the dual carbs that I am modifying?

    *OR buy a triple outlet pump and block off one of the outgoing lines?

    Personally, if that pump sent enough oil to one carb to please 2 cylinders before, I would think that a "Y" splice would not have a major impact per cylinder. Or where is my thinking flawed. And I'm not sure how a 3 outlet pump would react to a block off of one line...

    Thoughts?


  2. #2
    Resident electronics hacker UnityRacing's Avatar
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    Use the 3 outlet one. One for each carb, and the 3rd goes to the front crank bearing.

  3. #3
    StevoH@O's Avatar
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    There is no front crank bearing nipple on the case I am using. It is a 700 case which is meant for the carb models. The 800 Direct injection case had the extra nipple for the bearings because it was DI and not carbed from what I gathered. I actually have an 800 DI case and crank that I chose not to use. There is a line and nipple both to the front and rear bearing on that case.

  4. #4
    Resident electronics hacker UnityRacing's Avatar
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    I thought the octane top end needed to use the DI style case due to the cylinder sleeves?
    Either way i'd run the 800 cases for no other reason than the extra oiling. Big thing is make sure you match the cylinders to the proper case.

  5. #5
    Octanes were pre-mix; no oil pump.
    That being said, I'm currently using 700 cases for my 950, which uses a 777 crank...
    Just switch to premix!

  6. #6
    I like pipes. I love boost Mr. GP1800's Avatar
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    Get a 2 outlet pump from a 96 to 99 700. Problem solved.

  7. #7
    Resident electronics hacker UnityRacing's Avatar
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    He has an 800 DI case, why not use it and reap the benefit of extra oiling?
    Yes you can premix, but that is 1) a hassle every time you fill up, and 2) burns more oil (dollars) which equates to extra smoking.
    The Polaris oil pumps work extremely well, and modulate the amount of oil fed proportionate to the throttle input.


    Edit - Bryan your back! Who did you piss off this time?!

  8. #8
    I like pipes. I love boost Mr. GP1800's Avatar
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    Quote Originally Posted by [email protected] View Post
    There is no front crank bearing nipple on the case I am using. It is a 700 case which is meant for the carb models. The 800 Direct injection case had the extra nipple for the bearings because it was DI and not carbed from what I gathered. I actually have an 800 DI case and crank that I chose not to use. There is a line and nipple both to the front and rear bearing on that case.
    I dont think he is using the 800 di cases. The 2 outlet pump should work.

  9. #9
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    i got a 98 slth oil pump for the sx 777.you'll need the cable as well a triple cable works too.

  10. #10
    Resident electronics hacker UnityRacing's Avatar
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    His first post said he is using 800 cylinders. I thought the 800 cylinders needed a DI case to fit into, or case modifications needed to be performed?

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