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Topic Review (Newest First)

  • 01-26-2008, 01:16 PM
    DaytonaTunnel
    Thanks for the correction Paul. All I know is you improved what was already one of your great oil pumps, THANKS !

    It's looking like she'll see syn this summer
  • 01-25-2008, 12:45 PM
    LakesOnly
    Quote Originally Posted by DaytonaTunnel View Post
    Cold was around 65-70. I had Paul upgrade the pump to a stage II blueprint, and shim it just a tad more, hoping to see 60 at wot. You see no o/p drop using syn's ? Can I get straight 50 in syn ?
    Your pump is a Stage 1 prepped oil pump, it is not a Stage 2 prepped oil pump. What we did as a courtesy is update your pump to Gen 2 spec's, so now it is a Second Generation ("Gen 2") Stage 1 prepped pump. Your engine does not necessarily need our Stage 2 oiling Kit, as the Stage 1 prepped pumps offer plenty of oiling for your particular build.

    Technically speaking, we do not offer blueprinted oil pumps as we feel that the effort does not justfiy the expense. Rather, we prep our oil pumps for performance-minded engine builds, as the oil pump seems to be overlooked by a lot of enthusiasts.

    Your oil pressure behavior is typical of any high performance jet boat engine, in that you have fine oil pressure at your typical 60 psi and can expect the petroleum based motor oil to thin dramatically after a long hard pass in your boat, thereby resulting in pressure loss. Then as the oil cools down, pressure will come up again.

    Switching to a quality, ester-based synthetic will provide a noticable diminishment in pressure loss after similar hard passes because synthetic lubricants maintain their viscosity, stability, etc over wider temperature ranges then the petroleum oils. Nevertheless, at your request we added shim so as to increase bypass pressure by about 10 psi.

    LO
  • 01-24-2008, 09:03 PM
    Sleeper CP
    Quote Originally Posted by DaytonaTunnel View Post
    Cold was around 65-70. I had Paul upgrade the pump to a stage II blue[rint, and shim it just a tad more, hoping to see 60 at wot. You see no o/p drop using syn's ? Can I get straight 50 in syn ?
    Look for a Royal Purple or Amzoil web site. You can also run a 15-40 and add some Lucas oil stabilizer.

    Syn's will mix just fine with dyno oil's.

    Our engine, no drop in oil pressure?

    Sleeper CP
  • 01-24-2008, 05:35 PM
    DaytonaTunnel
    Quote Originally Posted by Sleeper CP View Post
    15-40 or 20-50. I see more 15-40 now than 20-50. How much oil pressure do you have cold/hot.?

    edit: 49 hot, what cold?

    Find a good 20-50 syn and you'll be happy. Royal Purple,Mobil One, Red Line, Motul, Amzoil. to name a few.

    Sleeper CP

    Cold was around 65-70. I had Paul upgrade the pump to a stage II blue[rint, and shim it just a tad more, hoping to see 60 at wot. You see no o/p drop using syn's ? Can I get straight 50 in syn ?
  • 01-23-2008, 11:13 PM
    Sleeper CP
    Quote Originally Posted by DaytonaTunnel View Post
    SleeperCP, what weight do you run ? My bearing tolerances were set up a little 'loose', and wondering what I should run ???
    15-40 or 20-50. I see more 15-40 now than 20-50. How much oil pressure do you have cold/hot.?

    edit: 49 hot, what cold?

    Find a good 20-50 syn and you'll be happy. Royal Purple,Mobil One, Red Line, Motul, Amzoil. to name a few.

    Sleeper CP
  • 01-23-2008, 07:56 PM
    DaytonaTunnel
    SleeperCP, what weight do you run ? My bearing tolerances were set up a little 'loose', and wondering what I should run ???
  • 01-20-2008, 05:11 PM
    SmokinLowriderSS
    The old leak tendancies were IMO based on CHANGING an engine over with well aged gaskets, which then generally dried out and shrank a bit under the loss of dino-oil, thus leaks started. I think that phenomena is long gone, by better gasket materials as well as starting an engine with synth, or switching much earlier.
  • 01-20-2008, 02:57 PM
    Sleeper CP
    Quote Originally Posted by DaytonaTunnel View Post

    Will 50wt. Syn have the same o/p as 50w. Dino ?

    Do Syn's have any tendencies to leak more than Dino's ?

    Will they run lower temps than Dino's ?


    P.S. I'm upping my boost from 5lbs. to 10 lbs.

    PP.SS. Have fun with this thread Sleeper CP
    That's funning. LOL

    But you already know my take on this subject. To keep it short there is no replacement for synthectic's from: NASCAR,F-1, Indy Car, Cart even NASA there is a reason they all use Synthetics.

    My 565" picked up 12-14 HP the three time's we switched to Mobil One on the dyno. My small block's picked up 8-10 hp. It proved its worth on the dyno when after switching to it the dyno operator would have to load the engine more and longer (a lot Longer) to build oil temp before we made back-up power pull's.

    I know of some racer's that after switching to synthetic gear lube the tranny and rear end temp dropped over 100*. So yes it will run your engine at a lower temp.. a lot lower.

    I have never had a problem with oil leak's since 1991.

    Edit: I forgot to mention how long it takes that 50 wt to reach the rocker arm's and cam bearings, it a lot longer than you would be comfortable with.

    Sleeper CP
    Big Inch Ford Lover
  • 01-20-2008, 11:34 AM
    DaytonaTunnel

    Syn or Dino ?

    I know it was discussed at length on the other POS board, but nothing here......yet. I've been using VR1 (Off-Road) since the engine was new. It now has 1/2 a season on it (24.8 hrs). I'm considering Synthetic now.

    The engine ran 49lbs. of o/p @ 6200rpms under a long boosted run. I used straight 50w oil. I had Paul shim the o/p up a tad, hoping to see 60lbs of o/p during a hard run now. I do not have an oil cooler at this time, and oil temps didn't seem out of control (200*-220*).


    Will 50wt. Syn have the same o/p as 50w. Dino ?

    Do Syn's have any tendencies to leak more than Dino's ?

    Will they run lower temps than Dino's ?


    P.S. I'm upping my boost from 5lbs. to 10 lbs.

    PP.SS. Have fun with this thread Sleeper CP

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