Pans, E-vacs, and Pumps HP comparo
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Pans, E-vacs, and Pumps HP comparo

  1. #1
    gn7
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    Default Pans, E-vacs, and Pumps HP comparo

    Nov. 2009 Drag Racer ran back to back dyno test changing pans, trays, e.vac, vacuum pumps, and oil pumps. Here's the results. All Moroso products.


    Street-strip pan with flat tray, Std volume pump base line...........935 HP
    Exhaust type Pan-E-Vac............................................... ........964 HP +29
    Hi volume oil pump.............................................. ..................953 HP -11
    Race pan with curved louvered tray and kickout.........................993 HP +40
    Vacuum pump 3 vane(over Pan-E-Vac)....................................1018HP +25
    vacuum pump 4 vane.............................................. ..............1024HP +6
    Deeper sump race pan and shrouded oil pump to close off tray.....1025HP+1
    Alumn pan with curved tray, & more louvers..............................1027HP+2

    It looks as if there is about a 42HP diff between a street-strip pan a trayand a race type pan. Guess maybe this kind of puts to bed the gains to had with the right parts under your crank. I think a Stef's with the screened tray would have added a little to the last pull. If the gains look huge, remember what I said in another thread, stroke and RPM, and what Steelcomp said, more gains from a Chevy with its tight ass crankcase, than with a Ford. This is on a 582 Chevy with a 4.375 stoke @ 7500.



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    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
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    Very interesting GN7, Thanks, from one at least.
    "As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron."
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    I guess you can't argue with that testing....
    Chris Straub
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    3HP is an A$$ Whooping!!! JW

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    Quote Originally Posted by cstraub View Post
    I guess you can't argue with that testing....
    Of Course not!! those are high dollar MOROSO pans!lol I had too!!! as I am sittin here with a helmet, shield and ready for a pounding!!!

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    21 Daytona Outlaw's Avatar
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    Just one question..... do you have a running boat?

    seriously, cool test
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    Quote Originally Posted by Outlaw View Post
    Just one question..... do you have a running boat?

    seriously, cool test
    I don't know! The battery could be DEAD!

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    Senior Member fireboat607's Avatar
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    I'm glad I'm going with a good pan on the new 540, excellent information, I got learned on non-moving performance equipment, thanks to all.

    Anyone can pedal a bicycle, can you pedal a flat?????

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    Quote Originally Posted by Outlaw View Post
    Just one question..... do you have a running boat?

    seriously, cool test
    well i have a moroso pan on my 468 im going to guess that i gained 500hp over my stock 1,lol!!!

    thanks for posting GN7

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    Good post GN.

    One thing to remember as engines are getting bigger these day's is that (in the small ass chevy crank case anyway) 4.375 is about the stroke limit for a wet sump. Anything 4.5 or over really need a dry sump for proper control.
    I will say that the B&B that Rex sells did a pretty good job on my 598. I didn't havre any control problems until the oil temp reached 230+, then it started to bobble a bit but what would you expect!?!



    This is the pan and even though it only shows working up to 4.375 stroke I didn't have any clearance issues with a 4.5 and eagle rods. Your results may vary, but it is about as good as your gonna get for a non-kick out pan, especialy for the money!

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    Senior Member Amango's Avatar
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    Anyone have picture of the inside of a moroso oil pan for a BBF 10QT marine? I believe that's what i have i should have taken a picture before i put it back together i just want to make sure i don't have A POS. Thanks

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    Quote Originally Posted by Warp Speed View Post
    Good post GN.

    One thing to remember as engines are getting bigger these day's is that (in the small ass chevy crank case anyway) 4.375 is about the stroke limit for a wet sump. Anything 4.5 or over really need a dry sump for proper control.
    I will say that the B&B that Rex sells did a pretty good job on my 598. I didn't havre any control problems until the oil temp reached 230+, then it started to bobble a bit but what would you expect!?!



    This is the pan and even though it only shows working up to 4.375 stroke I didn't have any clearance issues with a 4.5 and eagle rods. Your results may vary, but it is about as good as your gonna get for a non-kick out pan, especialy for the money!
    Kinda figured you would have a dry sump with the vac run off the driveline!Altleast you could have put a oil cooler on it with no kickout!Next time try 60wt vr1 that 1980's technology might suprise you!And Don't say shit till you try it! Didn't your momma teach you anything???

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    Quote Originally Posted by Warp Speed View Post
    Good post GN.

    One thing to remember as engines are getting bigger these day's is that (in the small ass chevy crank case anyway) 4.375 is about the stroke limit for a wet sump. Anything 4.5 or over really need a dry sump for proper control.
    I will say that the B&B that Rex sells did a pretty good job on my 598. I didn't havre any control problems until the oil temp reached 230+, then it started to bobble a bit but what would you expect!?!



    This is the pan and even though it only shows working up to 4.375 stroke I didn't have any clearance issues with a 4.5 and eagle rods. Your results may vary, but it is about as good as your gonna get for a non-kick out pan, especialy for the money!

    that looks just like a hamburger pan, but a hamburger pan is only 200 bucks for the whole kit, pickup/pan/gaskets/bolts they work great!

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    Quote Originally Posted by IMPATIENT 1 View Post

    Yep, same design, unfortunatly they are made in China these days and are paper thin. Not the old Hamburger that's for sure.

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