roadkillrob

Just curious, lots of talk of them curious who has actually spent the extra and put them in and if so how many miles, how have they held up?

Thinking of doing it, have found them for undef 1200 vs 700 ish for the standard M159 sls lifters.

mr747

I have them in my new motor worth it if you want to rev motor

roadkillrob

Thanks, I am looking at them for longevity more than revving it but have heard they are lighter and obviously built for more revs in the SLS.

Rob

layzie12g

What are the goals for the car?

mr747

I mwould just go with the normal SLS ones
Ive been beating on them for 50000kms with no issues

roadkillrob

cams have premature wear at 38k miles so trying to decide which lifters and cams to go with, plan to leave car stock just looking to make it won’t need another set in the future!

go team

Probably not necessary the cams are the bigger issue

mr747

Cams are not a issue my motor made 980hp on stock cams cast pistons and stock heads

I dont know where you pulled that information from

deadlyvt

I think he meant dependability wise... more of an issue than the lifters in regards to the premature valve train wear

mr747

Every motor is different i pulled my motor out qt 100000kms and no wearon cams what so ever 2010 model all lobes were perfect

roadkillrob

Ya they do seem all over the place, watching Tasos videos, some are great at relatively high miles some seem to wear very early, maybe how the car is driven (lots of cold starts short trips vs putting on miles), maybe oil used, maybe some cams are not hardened as well.

gmore

Been a while, but recall a video w/ Tasos taking a file to both cam and lifter with the cam being a far softer material. Basic conclusion I drew(and could be wrong) was replace the lifters for the sake of the cams. When I did my HBs, cams had some wear but looked decent so opted for just standard lifters to get some more time out of the cams (at 96K miles and about 5K more per year, opted for best 'value'), but if I were to replace the cams as well(oem or not), would opt for the SLS.

go team

The cams are cast so they don’t wear evenly and leave imperfections. Bigger issue at hand though is the variable in what people use for oil weight and the change interval that is recommended by Mercedes. My opinion of course like everyone else’s as I don’t have data from every M156 out in the world. Also the doesn’t sound like OP isn’t looking for big HP per se.

roadkillrob

Yes thinking more about reliability at stock HP levels, VRP will do an OEM grind, so was thinking about SLS Black series lifters and the VRP cams that are OEM rebuilt welded and hardened more than factory they claim, but also holding out to see the deal on Tasos' billet cams.

MrkiC63

980hp, how?

MrkiC63

Hot country, wrong oil, floor them cold ... i think thats more the problem. We here in eruope dont have that problems what Tasos show.

mr747

What do u mean how?

MrkiC63

Which kind of mods you need for 980hp ... sounds amazing.

mr747

Weiatec stage 3 etc etc 15 psi e85

MrkiC63

Never heard from that car. You have some data, pictures and dyno sheet?

mr747

Just seach my name on these forums some stuff will pop up

Yuille36

I had the SLS ones installed with the phosphate coating, but not the Black Series ones.
Just wasn't worth the additional cost to me.

roadtalontsi

In america people like to exceed the 10,000 mile oil change intervals, sometimes doubling them. The 10k mi service interval is for light duty. If more m156 owners did 3-5k mi oil changes I doubt we would see the cam and lifter wear issues, or if they used higher quality oils.

Yuille36

And I absolutely agree with your statement above 100%👍🏽

ecampbell

Lifters or buckets?