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Location: holland
Registered: November 2004
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4age short sump
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Wed, 20 April 2005 08:01
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Hey all,
I destroyed my sump last night on a speed hump, As you can see I drive a kitcar fitted with a 4age engine, and the sump sticks out some 4-5 cm (about 2") underneath the chassis rails, That's to much, the engine can't go higher, as the bonnet then wil not close again. overall chassis ground clearance is about 8cm, so it's LOW.
anyway I thought up this picture of a short sump, but the problem is I don't know if this ould work because I've never seen one. it's easiest for me to lengthen the sump instead of widening, because of the engine-mount arrangement (non Toyota)
here it is. so tell, me would this work?

regards Thomas
http://www.jwkoelewijn.nl/thomas
[Updated on: Wed, 20 April 2005 08:10]
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I supported Toymods
Location: Australia
Registered: November 2003
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Re: 4age short sump
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Wed, 20 April 2005 08:13

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Have you considered converting to dry sump?
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I supported Toymods
Location: Australia
Registered: November 2003
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Location: holland
Registered: November 2004
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Club Member
Location: sydney
Registered: May 2002
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Re: 4age short sump
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Wed, 20 April 2005 08:59

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the design you made seems feasable the only concern i see with it is that by extending the length of the sump further you may get a bit of surge around the pickup on accel ( the time when you least want it!), it might provide a better design by keeping rougly the same dimensions around the pickup and merely shortening both the pickup length and then cut the bottom of the pan in just the pickup area to suit the new length, I cant see any reason why doing it that way wouldnt work just as well. And seeing as the rest of the original sump is fairly tightly packaged theres no need to totally refabricate... ill do a quick drawing in the next few minutes and post it up.
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Location: holland
Registered: November 2004
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Club Member
Location: sydney
Registered: May 2002
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Re: 4age short sump
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Wed, 20 April 2005 09:35

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my drawings not as pretty as yours 
but if you only need 2" then the stock pickup point has plenty of room to adapt, run slightly less oil but a thinner grade and it should be fine
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Location: holland
Registered: November 2004
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Re: 4age short sump
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Wed, 20 April 2005 10:29

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Hey,
I think that's not going to make my engine happy, I need to get the same volume of oil in the sump, so the sump needs to be lengthened\, but then you'll get starvation under accel, so A trap door needs to be made.
the latest version has got a hirozontal end-to-end baffle, to keep oil from crawling up the walls when cornering..
the overall height of my sump needs to be about 7-8 centimeters.
So I might end up extending the sump from front to rear to get enough volume in there, filling up comes close because there's no more room between Full and Low, because the level raising above the windage tray, which would be very bad.
would the latest version do any good?
grtz thomas
[Updated on: Wed, 20 April 2005 11:08]
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Location: Somewhere on a dirt bowl ...
Registered: August 2004
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Re: 4age short sump
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Wed, 20 April 2005 15:16

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My idea would be to have the trap door about half the size or even about 1/4 in size. The idea being less oil to slosh around. Think of it as a pet door.
Or even keep that big one and place, say, four more around the pickup point. Four 1/4 size ones that is. Have the trap doors at the bottom of the sump and make them like baffles

With the baffles they don't go all the way up only, say 3/4 of the way up. Its so that the oil can flow over the top but the oil thats already around the pickup won't move by much.
I've got a couple of pix around somewhere in a mag if i can ever find it
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Location: holland
Registered: November 2004
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Re: 4age short sump
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Thu, 21 April 2005 05:22

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Also A very nice idea.
If making the little trap doors is easi enough I'll do that one. but 5 of them could get very crowded in there, The sump can't be higher than 7.5 cm overall else it will be in able to tough the tarmac again. ()glad my exhaust is on the side if the car)
I had allready thought of, making one small round/vertical baffle (serpentine belt) around the oil pickup tube, just like the ones ford uses in their fuel tanks as anti surge pot.
so here's version 3 (or 5)

grtz Thomas
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Location: BRAY PARK BRISBANE
Registered: March 2005
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Re: 4age short sump
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Thu, 21 April 2005 05:54

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remember you need to allow for the sweep of the crank.
you wold be limited by that
just a thought
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Location: holland
Registered: November 2004
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Re: 4age short sump
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Thu, 21 April 2005 06:10
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No I'll be not limited by cranck travel because the oil windage tray under the cranck will offcourse stay in. so as long as the assembly does nottouch the tray then I would be fine I think.
Man it would be good to have a short sump, cause every bump I need to take needs to be done diagonaly and SLLLLOOOOOWWWWWW now, I've got this car for almost 3 years now, and with the Kent engine I destroyed about 2 to 3 sumps a year.
Grtz Thomas
and NO I won't set the suspension a mm higer (UGH)
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