Replace those stock lifters!
#41
I shift at 6200ish. Still has stock rev limiter. Oil is at full mark. Never over revved it. Usually use a Purolator or Defense filter. Ph1/8 style, the big ford filter. I have a filter relocation kit. Sump holds 6.5 liters. 5w30 in the winter and 10w30 in the summer.
From the looks of it, I am going to start adding a zinc additive. I think I can get redline break in/oil additive locally. Sounds like one bottle will last me two oil changes? I have already flushed out the engine 3 times with just castrol gtx. Oil looks clean now but I haven't driven it yet. Still on the hoist. Needs to be tuned which I will be doing tomorrow .
From the looks of it, I am going to start adding a zinc additive. I think I can get redline break in/oil additive locally. Sounds like one bottle will last me two oil changes? I have already flushed out the engine 3 times with just castrol gtx. Oil looks clean now but I haven't driven it yet. Still on the hoist. Needs to be tuned which I will be doing tomorrow .
#42
TECH Junkie
iTrader: (4)
just curious but did anyone consider the fact these are 10+ year old parts? mileage aside how good is it on an engine to let it sit the majority of its life? ESP things like lifters..? I don't think it's oil. I think it's a combo of STOCK gm mass produced parts and abuse. the older stock lifters for sure.
#43
TECH Senior Member
iTrader: (9)
Its a bit of everything.
No special oil in the world can save you from some of these failures. But theres a lot of things you can do to make sure they dont:
1 inspect your rollers for smooth movement and any marks
2 replace those lifter trays or get link bars
3 determine your proper preload and get the correct pushrod
4 valves, springs, and cam all need to be carefully matched along with rockers
5 use an oil additive, its cheap insurance and with all the above parts, they could benefit from it
No special oil in the world can save you from some of these failures. But theres a lot of things you can do to make sure they dont:
1 inspect your rollers for smooth movement and any marks
2 replace those lifter trays or get link bars
3 determine your proper preload and get the correct pushrod
4 valves, springs, and cam all need to be carefully matched along with rockers
5 use an oil additive, its cheap insurance and with all the above parts, they could benefit from it
#44
TECH Resident
iTrader: (5)
I agree with tainted.
Ill add that the hardest thing on a lifter is idle. Theres very low splash to lube the roller during idle. The lifters in Obamas limo/tank were selected by surviving thousands of hours at idle.
Just something to think about if you let your car idle for long periods or are the kind of guy that likes your cammed car to idle at 650 rpm.
Ill add that the hardest thing on a lifter is idle. Theres very low splash to lube the roller during idle. The lifters in Obamas limo/tank were selected by surviving thousands of hours at idle.
Just something to think about if you let your car idle for long periods or are the kind of guy that likes your cammed car to idle at 650 rpm.
#46
TECH Senior Member
iTrader: (27)
They guy doing my build sent me this link regarding oil. It's worth taking a look at.
http://store.forcedperformance.net/m...otor%20Oil.pdf
http://store.forcedperformance.net/m...otor%20Oil.pdf
#47
10 Second Club
iTrader: (41)
They guy doing my build sent me this link regarding oil. It's worth taking a look at.
http://store.forcedperformance.net/m...otor%20Oil.pdf
http://store.forcedperformance.net/m...otor%20Oil.pdf
I'm taking that article with a grain of salt lol. Even if the M1 "caused" the failure it is for a turbo thrust bearing failure. Not a lifter or cam failure.
Is it possible that the turbo thrust bearing needs better oil? Maybe. If thats the case then sure, why not run the high ZDDP oil.
But IDK if anyone should be freaking out about running the lower ZDDP oil in their motor unless they have a flat tappet cam setup.
Thoughts?
#49
TECH Senior Member
iTrader: (27)
I'm taking that article with a grain of salt lol. Even if the M1 "caused" the failure it is for a turbo thrust bearing failure. Not a lifter or cam failure.
Is it possible that the turbo thrust bearing needs better oil? Maybe. If thats the case then sure, why not run the high ZDDP oil.
But IDK if anyone should be freaking out about running the lower ZDDP oil in their motor unless they have a flat tappet cam setup.
Thoughts?
Is it possible that the turbo thrust bearing needs better oil? Maybe. If thats the case then sure, why not run the high ZDDP oil.
But IDK if anyone should be freaking out about running the lower ZDDP oil in their motor unless they have a flat tappet cam setup.
Thoughts?
#50
10 Second Club
iTrader: (41)
Oil manufacturers have been decreasing the ZDDP in motor oils over the last 20 years. If these failures are really related to the lack of ZDDP then they must have recently taken more out. I would think we would have seen alot more failures by now seeing how they have been taking ZDDP out over the past 20 years.
I dont doubt it but the ZDDP being decreased is nothing new.
I dont doubt it but the ZDDP being decreased is nothing new.
#51
Oil manufacturers have been decreasing the ZDDP in motor oils over the last 20 years. If these failures are really related to the lack of ZDDP then they must have recently taken more out. I would think we would have seen alot more failures by now seeing how they have been taking ZDDP out over the past 20 years.
I dont doubt it but the ZDDP being decreased is nothing new.
I dont doubt it but the ZDDP being decreased is nothing new.
It's the use of them....
#52
LS1Tech Administrator
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Hydro-roller cams, especially stock ones, aren't subject to anywhere near the type of friction of a flat tappet arrangement. Lots of LSx stock cammed engines with normal OTC oils and tons of usage on stock lifters without failures. A stock engine will last a LONG time with basic maintenance and nothing special added to the oil. People break stuff because they add the additional stress of aftermarket parts to old, tired stock parts creating a combo that wasn't expressly designed to work together in the first place.
I use high ZDDP content oil (Valvoline VR1) in my old flat tappet SBC. I do not worry about this in my LS1s though. I've had no lifter failures with stock LS1 engines. I've got one of the oldest possibile (age-wise) LS1s in service, an engine that has sat most of it's life as a garage queen and is stock. No lifter issues there. I also have a newer LS1 with 100k+ that is stock internal and has no lifter issues either. No special additives, just Mobil 1 0w40 year after year.