WTF is this shit and why?
01-13-2011, 10:17 PM
#1
WTF is this **** and why? i picked up a used ls1 started tearing it apart for my build and came across this, i belive there lifter gides or something.. my fist ls1 build but i noticed one of them was cracked and has 4 holes in it... wondering wtf happened and why, i think someone tried to drill it or something i have no idea.. please explain what u think it is..
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01-13-2011, 11:43 PM
#8
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They are drilled for oil drainage 
.....what common sense fails to yield is that it is a cup, by design it can only hold so much. After it exceeds capacity it will overflow. Rendering all excess oil a direct path straight back to the oil pan. The holes simply do this a tad bit faster. So, you may say well what if it never fills to the top? Then the holes would serve a purpose.....No they wouldn't. If we aren't even talking about enough motor oil to fill 8 of those cups then we aren't effecting oil return to the pan significantly enough to even worry about anyway. And, IMO if it was such a great idea, it would have been implemented into the design of the cups in the first place. My .02.
.....what common sense fails to yield is that it is a cup, by design it can only hold so much. After it exceeds capacity it will overflow. Rendering all excess oil a direct path straight back to the oil pan. The holes simply do this a tad bit faster. So, you may say well what if it never fills to the top? Then the holes would serve a purpose.....No they wouldn't. If we aren't even talking about enough motor oil to fill 8 of those cups then we aren't effecting oil return to the pan significantly enough to even worry about anyway. And, IMO if it was such a great idea, it would have been implemented into the design of the cups in the first place. My .02. 
01-14-2011, 12:46 AM
#12
They look like those cheap small flower pots that flowers come in from the store in the last two pics haha
They are actually a cool design tho, being able to hold up the lifters by just spinning the cam around a few times to pop them up there. Id still use the dowels to hold them up IMO but its a trick idea nonetheless.
They are actually a cool design tho, being able to hold up the lifters by just spinning the cam around a few times to pop them up there. Id still use the dowels to hold them up IMO but its a trick idea nonetheless.
01-14-2011, 04:12 AM
#14
That's why I never drilled mine. This is from a book on hot rodding LS1 motors but I frankly never saw the logic in it otherwise GM would have designed them that way.
To the OP, Morel makes a link bar lifter that will eliminate the trays if you want to go that route.
To the OP, Morel makes a link bar lifter that will eliminate the trays if you want to go that route.
01-14-2011, 07:42 AM
#15
I'm not saying it's a good or bad idea, but most of us run higher than stock oil pressure if we have changed the cam, added a oil pump, etc. which might contribute to more oil build up in the top end of the engine under high rpm conditions for extended periods. Not sure if drilling the cups would be worth it as said, but it's not like most of the oil buildup happens in a stock engine so GM not doing it doesn't exactely account for out modifications to the oiling system.
I noticed I get oil into my catch can on a road course so I might switch to a restricted pushrod, etc to keep more of the oil in the pan.
I noticed I get oil into my catch can on a road course so I might switch to a restricted pushrod, etc to keep more of the oil in the pan.
01-14-2011, 08:22 AM
#16
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Right, but my point addressed this. If you are in extended periods of high rpm, the cups will fill and overflow, therefor dumping the excess oil back to the pan as if the cups did not exist, bc they are full. If, you are talking about a half full cup, well then how much oil can 16 half full cups hold? a quart? So run your engine with 6 quarts and you'd be a quart down, but still got 5 quarts free-flowing. Just doesn't make any logical sense to me.
01-14-2011, 08:34 AM
#17
They are drilled for oil drainage .....what common sense fails to yield is that it is a cup, by design it can only hold so much. After it exceeds capacity it will overflow. Rendering all excess oil a direct path straight back to the oil pan. The holes simply do this a tad bit faster. So, you may say well what if it never fills to the top? Then the holes would serve a purpose.....No they wouldn't. If we aren't even talking about enough motor oil to fill 8 of those cups then we aren't effecting oil return to the pan significantly enough to even worry about anyway. And, IMO if it was such a great idea, it would have been implemented into the design of the cups in the first place. My .02.
.....what common sense fails to yield is that it is a cup, by design it can only hold so much. After it exceeds capacity it will overflow. Rendering all excess oil a direct path straight back to the oil pan. The holes simply do this a tad bit faster. So, you may say well what if it never fills to the top? Then the holes would serve a purpose.....No they wouldn't. If we aren't even talking about enough motor oil to fill 8 of those cups then we aren't effecting oil return to the pan significantly enough to even worry about anyway. And, IMO if it was such a great idea, it would have been implemented into the design of the cups in the first place. My .02.If your doin enough modifications to be in there messing with lifter trays just toss a new unmodified set in & be done with it. If your oil pump is doin its job & your oil isnt full of sludge you'll never have a problem with the oil drainage from the lifter tray, period. Most people who experience oil related issues will have them related to the following:
worn bearings
failing oil pump
pinched/damaged oil pick-up tube o-ring
I have seen too many people over the years toss in a H/C combo on a high mileage motor & when it goes boom they wanna blame the lifter trays if the bearings look like crap on disassembly. This is retarded IMO.
