Author Topic: M47 crank + custom pistons, rods, etc. (Read 51193 times)

Febi Guibo · « **on:** April 03, 2006, 05:26:49 PM »

we're getting there...

At present, I don't have a lot of information, but the bottom end of my long-awaited 2.1L M42 is coming together.

As you may have figured out by now, I don't know so much about cars, but I am at least getting better at posting pictures:

Last little tidbit... for you european guys, it turns out that BMWs M47 diesel engine was used on some 'Rover' brand cars... so if you're cruising the pick-n-pulls, it might be a source for a stroker crank.

asubimmer · « **Reply #1 on:** April 03, 2006, 05:44:07 PM »

wow I can't wait to see it man, if you don't mind me asking what kinda ball park is this gonna cost?

Febi Guibo · « **Reply #2 on:** April 03, 2006, 05:56:49 PM »

well charlie... let's just say "the pioneers take the arrows..."

seriously, I'm not like... proud of modding via checkbook, but my expertise building up an engine is really limited (having completed 75% of a rebuild doesn't really cut it), plus with my current capabilities (time, space, tools, + equipment) are... also limited.

Anyway, hopefully we'll learn a little something as a group, even if I wind up with the mother of all white elephant projects.

--

Actually... this is sort of interesting re: your turbo project. I decided to go N/A because I have like, no experience working with turbos, and the one car I've had with a turbo (saab) was less than, um, super 'exciting'. But it may turn out that it's more cost-effective/better to do a very buttoned-up lower compression M42 build, and then turbo it, then to do a very fault-intolerant, high compression, high rev N/A build.

asubimmer · « **Reply #3 on:** April 03, 2006, 06:06:55 PM »

well what about a 2.1L turbo m42!! haha well when i get this done we can talk about it. I would be more than happy to help you out w/ it.

e9nine · « **Reply #4 on:** April 03, 2006, 06:11:04 PM »

Giggitty giggity...is the mechanic working on this your buddy or are you paying *full pricing*? Is it safe to assume you're going all out with this or you're gonna do it in stages?

Febi Guibo · « **Reply #5 on:** April 03, 2006, 06:16:08 PM »

I'm having an engine builder do it all at once...

initially, I was going to buy the parts, have the crank machined and porting work done on the head, and then assemble it... but good sense got the better of me. even still, this is only a start... ugh!

e9nine · « **Reply #6 on:** April 03, 2006, 07:00:06 PM »

A few more questions:You gonna do any headwork, any intake/breathing mods, will you do the m20 flywheel mod, what are you doing for engine management and exhaust work (i.e. high flow cat and dia. piping)

You do know we all have our eyes on you and will be eagerly reading your updates

Hopefully you pull through all of this at a rapid pace and will be rolling around with m42 power that no one else has :cool:

Febi Guibo · « **Reply #7 on:** April 03, 2006, 07:14:53 PM »

har...

The major stuff at this point is all the internals, so in a way, it will be done in stages. Stroked to 2130cc, diesel crank, custom pistons, carillo rods, smaller valves, beehive springs, everything is getting balanced, flow work for the head, lightweight flywheel... and cams... and bigger injectors.

I haven't come to a conclusion re: the cams yet, but they might be around 254 degrees or so.

A lot of the bolt-on stuff: exhaust, intake, MAF, computer will have to come later, although I'm having a chip burned to get me by until I can really feel the engine out and learn more about megasquirt or other systems (eg: help!!)

anyway, mechanically / god willing, this will be a great platform to carry through the life of the car (or multiple cars... haha). My car is running fine now, but a rebuild is going to happen sooner than later and, after all... I love the M42!!

1991318is · « **Reply #8 on:** April 03, 2006, 08:35:09 PM »

Wow, I'm jealous of u getting to do that build. I wanna build another motor so bad, but need to slow down as my wallet is still messed up from the last build i did. Those rods look awesome, those H beam ones are so freaking strong, I love those style. Good luck w/ the build, I'm definately watchin to see how it turns out for u and possibly I will follow w/ the idea.

Brendan

nickmpower · « **Reply #9 on:** April 03, 2006, 08:48:54 PM »

what all needed to modified on the crank?

StreetSpec_iS · « **Reply #10 on:** April 03, 2006, 09:16:15 PM »

awesome mate!!!! good to see this come through from someone 'closer to home' than the gizmo guy. keep us posted man.

i'm assuming the 'rover' connection is the Land Rover Freelander like we got over here. if so, awesome.

dude8383 · « **Reply #11 on:** April 03, 2006, 09:42:15 PM »

:eek:

JEALOUS.

that is all

Febi Guibo · « **Reply #12 on:** April 03, 2006, 09:45:50 PM »

well... denis... ain't nuthin' to be jealous of...

- you've got your youth...

- I have a crank from a 4-cyl diesel engine
(that hasn't been in a new car for like, over 10 years)...

shellback · « **Reply #13 on:** April 03, 2006, 10:32:51 PM »

Any one of these M47 equiped cars can be used?

http://www.bmwinfo.com/23480.html

I have to ask, and please forgive me, but how much is one of those cranks?
Pistons?

Thanks,
Chris

kowalski · « **Reply #14 on:** April 03, 2006, 11:49:37 PM »

Quote from: asubimmer

well what about a 2.1L turbo m42!! haha well when i get this done we can talk about it. I would be more than happy to help you out w/ it.

thats what iv been thinking.. im heading to europe on the 24th and if i can find a crank, well then

the fun will begin.