M539 Restorations Partee Racing S62 engine machining/build

[Obioban]

Technically not e46 M3 content, but since Partee is working on an e46 S62 kit, I think it passes muster.
(not to mention, Partee also does S54s)

This is THE clearest explanation of what goes into a proper engine build that I've ever seen. Quite the operation Peter has going on there.

[TexaZ3]

Fascinating video. Peter & his crew does fantastic job.

[Flow]

Thank you for sharing that.
Saved for later, I'll be enjoying it I am certain.

[George Hill]

Great video, I enjoyed it.

but since Partee is working on an e46 S62 kit, I think it passes muster.

Tell us more about this.

[Obioban]

Great video, I enjoyed it.



Tell us more about this.

I linked Peter to this thread, so I’ll let him field that one.

[digger]

Most of that is fairly normal machine work, except perhaps those working with Alusil is a bit rare and it is good to see them using a profilometer (there does seem to be more and more shops doing this thanks to TS). You hear about no end of people with issues with aftermarket pistons which use a different ring material and people are honing like it was the 1950's and it is no wonder the results are garbage.

Personally i wouldn't let anyone hone a block for a performance build with aftermarket pistons without verifying the roughness parameters provided by the piston manufacturer (e.g. Mahle MS or similar provide these for a reason).

Hopefully more professional places like this come about as most of the bmw shops are rubbish (just mechanics assembling engines)

[x Spades x]

Great share, thank you!

I just wish Partee did more E46/E92 M3 stuff. They have so much knowledge and opportunity. The engine rebuilds are fine, but there is so much more...

[0-60motorsports]

Was an awesome video. Peter and his team do some amazing work.

[bigjae46]

Maybe it's just me but Peter makes the think of Guy Fieri 🤣

Amazing stuff and very interesting. The S62 was winning the rolex DP series in the mid 2010s with a Dinan build. The engine was heavily restricted because Ganassi kept winning. A 20 year old engine beating everything which is unheard of.

But one problem. How many S62s are laying around? That has to be one of the lowest engine production runs of all the S engines except for the S14.

[cobra]

Makes me wonder how long until these skills and knowledge are lost in the aftermarket.
Will there be custom EV builders working on 25 year old cars, rewinding motors and upgrading battery packs for an enthusiast community?

[oceansize]

Makes me wonder how long until these skills and knowledge are lost in the aftermarket.
Will there be custom EV builders working on 25 year old cars, rewinding motors and upgrading battery packs for an enthusiast community?

I could be dead wrong, but I've always envisioned car ownership in many/most metropolitan areas dropping to almost nil. I'm not sure how far we are from that future (decades I would guess), but I think that is the end game. Currently the US census bureau, according to google, has 80% (and even higher in certain regions) of the USA population living in a large city (as defined by population density). Transport as a service or TaaS or Uber's in constant rotation orbiting a city and likely driverless. Why own a car?

[cobra]

I could be dead wrong, but I've always envisioned car ownership in many/most metropolitan areas dropping to almost nil. I'm not sure how far we are from that future (decades I would guess), but I think that is the end game. Currently the US census bureau, according to google, has 80% (and even higher in certain regions) of the USA population living in a large city (as defined by population density). Transport as a service or TaaS or Uber's in constant rotation orbiting a city and likely driverless. Why own a car?

Funny you mention this. In my area which is suburban, the state is mandating X number (around 10% of the current population) in new housing units over the next decade. The caveat? No parking allocated for those new units. At best, 1 parking spot. There is a definite push away from the car-reliant lifestyle, owning multiple vehicles, etc.

At the same time, maybe it's a natural trajectory. People are just less into cars than they used to be. Kids aren't itching to get their license at 15.5 anymore (see below graph). Plus, the world is saturated with incredible vehicles. I walk past McLaren and Ferraris and instead of thinking "wow, what an amazing feat of engineering!" I think damn, who's the guy with enough disposable income to drive this? Whereas back in the 90's just seeing a supercar was rare, and they were such an astronomical jump in performance from the average car that it was as much a status symbol as it was an objectively superior vehicle. Not necessarily the case anymore.



Anyway, not to derail the original topic too much I appreciate the content. As a machinist myself, I like seeing a shop trying to do it right and a shop owner who is truly an enthusiast.

The only part that threw me off was the break-in procedure which seemed more like what feels right rather than having data to support it. Who knows if it really matters. I'm sure the OEM's have done studies on it!

[digger]

The only part that threw me off was the break-in procedure which seemed more like what feels right rather than having data to support it. Who knows if it really matters. I'm sure the OEM's have done studies on it!

you have to consider the whole system that is the oil, rings and the surface finish profile, it makes no sense to follow OEM approach unless they have OE piston rings, honed by OE and they supplied the oil.

[lemoose]

I don't get it. Why is the bore honer called the donkey?

[ethan]

I don't get it. Why is the bore honer called the donkey?

I guess because it goes up and down like an oil well pumpjack AKA a nodding donkey.