Author Topic: M47 crank + custom pistons, rods, etc. (Read 51204 times)

christophbmw · « **Reply #15 on:** April 04, 2006, 12:01:37 AM »

Quote from: shellback

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

Thanks,
Chris

new they cost $990 check it out:
http://www.realoem.com/bmw/showparts.do?model=AT72&mospid=47655&btnr=11_3314&hg=11&fg=20
....thats all i could find.

nickmpower · « **Reply #16 on:** April 04, 2006, 12:42:34 AM »

Quote from: kowalski

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.

hook a brotha up!!!!!!!

kowalski · « **Reply #17 on:** April 04, 2006, 01:10:14 AM »

Quote from: nickmpower

hook a brotha up!!!!!!!

ill be buying as many things as i can afford/find/carry
smoked elips
m47 cranks:)
whatever else i can stumble upon.

pm me if your lookin for anything particular (nothing unreasonably, i can't bring body kits back)

Eurospec · « **Reply #18 on:** April 04, 2006, 02:58:38 AM »

Quote from: Febi Guibo

I have big plans for the car

You weren't kiddin'

Best of luck!

1991318is · « **Reply #19 on:** April 04, 2006, 03:01:53 AM »

Quote from: Febi Guibo

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

Atleast it didn't have spun bearings, that'll create a nightmare on the wallet with that grind, if they could even salvage the crank.

Quote from: christophbmw

new they cost $990 check it out

Ouch, a custom crank for my v8 is like 400 new for a custom forged one. Mine was liek 100 I thnk to have it ground down, but that was after I had the crank. I htink it was 400 total for crank and regrind since I went with a stock forged one. Only difference as this was a v8 which would take much longer to grind down and clean it all up.

e9nine · « **Reply #20 on:** April 04, 2006, 09:39:39 AM »

Quote from: christophbmw

new they cost $990 check it out:
http://www.realoem.com/bmw/showparts.do?model=AT72&mospid=47655&btnr=11_3314&hg=11&fg=20
....thats all i could find.

FYI RealOEM pricing is NOT accurate. Call your vendors/dealers of choice and find out anytime you want accurate pricing.

tim_s · « **Reply #21 on:** April 04, 2006, 10:27:53 AM »

wow, that's beautiful! great photos too! what CR you going for? looks high! (flatish top pistons despite the big valve pockets)! 2130cc, thats some absolutely huuuge pistons you've got in there! what dia. have you gone for? are you not a bit worried about the wall thickness!?
man, you've taken this to extremes! what length rods are those? they look very nice!
is that a cast crank? what length?

tim_s · « **Reply #22 on:** April 04, 2006, 10:30:27 AM »

oh an just to pick up on the rover thing, no no no! the crank nose is wrong on rover engines, well at least the ones i've seen!

2002maniac · « **Reply #23 on:** April 04, 2006, 11:44:21 AM »

NICE! Strokers love wild cams. I would reccommend something aggressive. The added displacement offsets the low end torque loss common to aggressive cams but your top end will SCREAM!

1991318is · « **Reply #24 on:** April 04, 2006, 01:29:15 PM »

Only issue is the compression. Trying to keep it decent will be super hard w/ a huge cam and a stroker.

tim_s · « **Reply #25 on:** April 04, 2006, 04:24:08 PM »

Quote from: 2002maniac

NICE! Strokers love wild cams. I would reccommend something aggressive. The added displacement offsets the low end torque loss common to aggressive cams but your top end will SCREAM!

lol, should read

Quote

2002Maniac loves wild cams

actually sod it

Quote

tim_s loves wild cams *

* but only on track cars or cars with ITBs as they're a pita to live with on a daily driver

kowalski · « **Reply #26 on:** April 05, 2006, 01:20:17 PM »

Febi, if you don't mind, i'm trying to price out my project... how much were the custom pistons and rods? you can PM the price to me if you want to keep it confidential... thanks
Mike

2002maniac · « **Reply #27 on:** April 05, 2006, 09:13:11 PM »

Quote from: tim_s

* but only on track cars or cars with ITBs as they're a pita to live with on a daily driver

Displacement is the cure.

thumper3ld · « **Reply #28 on:** April 05, 2006, 09:45:48 PM »

Once again i say, someone start mass producing this stuff so that the price drops down and we can all have fun.

1991318is · « **Reply #29 on:** April 05, 2006, 09:46:08 PM »

Quote from: 2002maniac

Displacement is the cure.

Talk about displacement, you should see the DART Ford big block. It's well into the 700 cubic inch range. Off the top of my head, I think the pistons are either 5 or 6 inches wide, its huge, but runs like a bat out of hell on the dragstrip.