Just wanted to say the crank in your sig looks silly sick I will be doing the same thing to mine
This what I have to say about the crank
http://www.gotwavs.com/cgi-bin/mp3s.cgi?Anchorman_The_Legend_Of_Ron_Burgundy=spat ula.mp3

and heres a comment on the looks of the head
http://www.gotwavs.com/cgi-bin/wavs.cgi?Anchorman_The_Legend_Of_Ron_Burgundy=hamm erofthor.wav

:) :cool :eek: :buttrock :alright :lol :lol :lol

you pooped in the refrigerator? i'm not even mad, that's actually quite impressive!

And ate a whole wheel of cheese?

tomorrow i'm going to home depot, maybe some bed bath and beyound. i just don't know

Bah. I thought going for a knife-edged crank was going to be original. :rolleyes ;)

Where's the best place to get this done? Paeco over in Alabama has a going rate of $400 total, not including shipping I think, but driving there will be easier for me.

Just wanted to say the crank in your sig looks silly sick I will be doing the same thing to mine
This what I have to say about the crank
http://www.gotwavs.com/cgi-bin/mp3s.cgi?Anchorman_The_Legend_Of_Ron_Burgundy=spat ula.mp3

and heres a comment on the looks of the head
http://www.gotwavs.com/cgi-bin/wavs.cgi?Anchorman_The_Legend_Of_Ron_Burgundy=hamm erofthor.wav

:) :cool :eek: :buttrock :alright :lol :lol :lol
:lol Love the Ron Burgundy wavs.

Thank you so much Ulysses! :buttrock I am very excited! I guess I will have to show a couple more pics. I only got a few new ones. The engine and widebody both should be done in 2 weeks tops and then I get to have some of the fabbing fun that you have already had. I will tell you one thing, so much time and so much money went into the engine, that after pondering about the tuning for a while, I have decided that Vic Sias must be the man. I cannot take any chances at all!

http://img95.imageshack.us/img95/5554/pistons17jj.jpg
http://img137.imageshack.us/img137/6156/head34nc.jpg
http://img137.imageshack.us/img137/7186/crank10jj.jpg
http://img137.imageshack.us/img137/5108/springs14ra.jpg

Cameron Im in love with your crank.....wait a minute that did not sound right

Cameron Im in love with your crank.....wait a minute that did not sound right
:lol Ummmmm...thanks! :D Since I couldn't go for the 3.6 liters that I originally wanted, I figured I would help spool as much as possible so why not knife edge the crank if it's already out.

YES:buttrock Thats awasome
Now I really love your crank:nono :lol
Seeing your parts are making me jealous I wish I was not so dam lazy

:lol Love the Ron Burgundy wavs.

Thank you so much Ulysses! :buttrock I am very excited! I guess I will have to show a couple more pics. I only got a few new ones. The engine and widebody both should be done in 2 weeks tops and then I get to have some of the fabbing fun that you have already had. I will tell you one thing, so much time and so much money went into the engine, that after pondering about the tuning for a while, I have decided that Vic Sias must be the man. I cannot take any chances at all!

Any more info on those pistons? Since you tried for a 3.6, are you going for the 3.4? I heard 3.4 is fairly easy compared to the 3.6.

Swaintech coating on the pistons/combustion chambers or another brand?

Cameron might as well squeeze a 3.8 in there next time around. I heard they are smaller than the 3.6 ;)
just :smash the inner fenders a bit since you already have widebody setup that will compensate for the loss.

Nah...I'm going to finish this car, save some money for a few years and then I will tackle the next project...8-12 cylinders boosted. I can live without having the extra .6 liters with this car for now.

Its a shame those works of art will be covered in oil.

Swaintech coating on the pistons/combustion chambers or another brand?

Also, while I know it's not the only benefit of a knife edged crank, but did you weight it before and after all the grinding?

I guess I don't exist... :rolleyes

Just out of interest are there any negatives to knife edging cranks? I know of positives but not really sure about down sides.

Just out of interest are there any negatives to knife edging cranks? I know of positives but not really sure about down sides.


cost?

Nah...I'm going to finish this car, save some money for a few years and then I will tackle the next project...8-12 cylinders boosted. I can live without having the extra .6 liters with this car for now.
My next car will be a twin turbo V8 .. but I'm going to enjoy the M Coupe for a long time first :-)

Swaintech coating on the pistons/combustion chambers or another brand?



Definatly a ST job.




Juker008

cost?

Yeh, that one was obvious. Are the improvements really noticable or is it only really for those extreme few who try to squeeze blood from a stone?

*shrug* every thing couts. you do 5 things that add 2-5 HP each that 10-25 HP... its all adds up. Thats how you make a bad ass motor you do every thing you can it just cost alot of money.

Just out of interest are there any negatives to knife edging cranks? I know of positives but not really sure about down sides.
i'm thinking like a LTW flywheel, the initial inertia will be much less than stock. so i guess one of the downsides would be that it would tend to be much easier to stall.

*shrug* every thing couts. you do 5 things that add 2-5 HP each that 10-25 HP... its all adds up. Thats how you make a bad ass motor you do every thing you can it just cost alot of money.
I disagree. You build a strong motor and then you pump air into it. All the "modifications" inthe world won't come close to pumping a little bit more air in. The build should be about making the engine strong enough to handle more air.

i'm thinking like a LTW flywheel, the initial inertia will be much less than stock. so i guess one of the downsides would be that it would tend to be much easier to stall.

Thanks. Thats something i had forgotten all about :)

My next car will be a twin turbo V8 .. but I'm going to enjoy the M Coupe for a long time first :-)
That's what I'm talking about! Nice Kenny! :buttrock

I guess I don't exist... :rolleyes
You do...but I honestly only know this "Are you talking about the Ultra high temp ceramic coating develped by Nasa?" I wanted a bulletproof engine so the coating was a bonus I guess.

Yeh, that one was obvious. Are the improvements really noticable or is it only really for those extreme few who try to squeeze blood from a stone?
I didn't do it for power...I did it for it to rev faster. I did it for spool. The turbo will be sorta big so I figured what the hell, maybe it will help a little with spool.

Knife edged crank wont gain you any HP. There are several advantages to knife edging a crank and also disadvantages, moreso advantages though! First of all, the crank is lightened significantly and is sharper so it will cut through the oil better and also spin much quicker. The car will rev faster, and if you have a lightweight clutch, then it will rev even faster! The downside of knife edging the crank would be the crank is weakened because you are taking material off the crank to make it lighter. Weakening the crank can obviously cause other damages, but the chances of destroying a crank is not too high, so most people will be fine with that.

Cameron, I see you wanted to rev faster too! It does make a difference in lag time thats for sure. What clutch are you going with?

I have a knife edged crank in my motor and a Tilton Tripple Disc C/C LTW race clutch in my car. The whole clutch assembly weighs less than 20 lbs and with the lightened crank it is pretty crazy :)

Knife edged M50 crank is not good for high hp.
Only NA.

I disagree. You build a strong motor and then you pump air into it. All the "modifications" inthe world won't come close to pumping a little bit more air in. The build should be about making the engine strong enough to handle more air.


Absolutely agree'd.

And, I do agree knifedged cranks are awesome looking. But for the style of weekend warrior drag racing we all do, its completely pointless IMHO. And please dont take this as a flame anyone who has done it. But its main goal is to reduce the amout of vaporized oil in the crank case, lessen the drag of the couterweights through the oil.......and provide a smooth surface for the oil to remove itself from more efficiently..........thus producing more power due to less overall windage.


This more for dedicated drag cars or for road racing in an environment where you cant turbo up the boost to add a little more power. You NEED to scrimp for that little bit of an edge.

Another thing.......knifedged cranks are all but pointless for high RPM use without a properly made and installed crank scraper (and NOT a windage pan!!). They pretty much go hand in hand with eachother. Id almost bet 100% those on the board that have a KE crank have the stock windage pan installed. Id assume that the guys in the roadracing section of BFC have scrapers installed but this is just speculation.

For me, a $xxx.xx knifedging bill is less superior to having a stout crank and just going from 22psi to 24psi and not worrying about the threashold of my crank. When yer FI, having a stout powerplant and a means to provide good airflow with a wide range of pressures is far superior to having limited airflow available and a questionable powerplant.


:alright It still looks kickarse though!!! :alright

hell, adding a simple hand made aluminum crank scraper to a STOCK crank would probably add more forseeable gains over a KE crank and that damn stock windage pan.

hmmmm............ now me thinking.........

Do you have stock suspension Streu, that travel is pretty far on the front wheels ;)

Do you have stock suspension Streu, that travel is pretty far on the front wheels ;)



4" body lift FTW :cool

You do...but I honestly only know this "Are you talking about the Ultra high temp ceramic coating develped by Nasa?" I wanted a bulletproof engine so the coating was a bonus I guess.

Nah. I just wanted to know more about the pistons, like size, compression, and brand. That's all.

Knife edged crank wont gain you any HP. There are several advantages to knife edging a crank and also disadvantages, moreso advantages though! First of all, the crank is lightened significantly and is sharper so it will cut through the oil better and also spin much quicker. The car will rev faster, and if you have a lightweight clutch, then it will rev even faster! The downside of knife edging the crank would be the crank is weakened because you are taking material off the crank to make it lighter. Weakening the crank can obviously cause other damages, but the chances of destroying a crank is not too high, so most people will be fine with that.

Cameron, I see you wanted to rev faster too! It does make a difference in lag time thats for sure. What clutch are you going with?

I have a knife edged crank in my motor and a Tilton Tripple Disc C/C LTW race clutch in my car. The whole clutch assembly weighs less than 20 lbs and with the lightened crank it is pretty crazy :)
Thanks. Looking to get a CLutchmasters C/C.
Knife edged M50 crank is not good for high hp.
Only NA.
It is not an m50 crank. It is forged.
Nah. I just wanted to know more about the pistons, like size, compression, and brand. That's all.
JE
8.5:1CR

MORE PICS

http://img146.imageshack.us/img146/2156/bfc115qr.jpg
http://img146.imageshack.us/img146/1401/bfc105xs.jpg
http://img146.imageshack.us/img146/6224/bfc93yl.jpg
http://img272.imageshack.us/img272/5785/bfc84ed.jpg
http://img272.imageshack.us/img272/3706/bfc71xv.jpg
http://img272.imageshack.us/img272/3539/bfc69af.jpg
http://img146.imageshack.us/img146/8360/bfc57vj.jpg
http://img146.imageshack.us/img146/5189/bfc43lj.jpg
http://img272.imageshack.us/img272/6572/bfc34yz.jpg
http://img272.imageshack.us/img272/820/bfc22xd.jpg
http://img272.imageshack.us/img272/3532/bfc17pc.jpg

Knife edged M50 crank is not good for high hp.
Only NA.


I wonder why? Also, to build boost faster with a big turbo, shouldn't keep some "weight" in the engine to create a load in it and make the turbo spool faster?

I mean, if you accel th eengine in neutral you won't make none or just a liitle boost, but if you make in 1st and rev up you will build boost due the load it's recieving the engine. But then, a lighter rotary pieces should spool quicker, but should has less load ? :help

I didn't LTW my flywheel and either the crank to keep some decent torque for daily driver use and thinking that i will build boost kinda faster.

I wonder why?
I think what he is saying is that the m50 crank is cast so it's not good for high boost especially if it has been knife edged but my crank is not the m50, it is forged.

There will always be opinions on both sides of the fence. What I care about is what happens when I finally get to drive the car. Then I will see. If the crank explodes and the engine blows apart...then I will just buy a stock m52 and do what CC has been doing with a thicker head gasket. Cause it is actually cheaper to keep replacing with used m52s rather than build one engine like this. I guess I had to do it though at least once.

Yup, that's one of the only ways to find it out!

Hope all turn good for you!

Man, your crank looks like a big multi scissors tool! lol:stickoutt impressive!

Who makes the crank if its not an m50 one? Is it pure custom?

Nice Cameron...way to taunt the lazy people:stickoutt

Nice Cameron...way to taunt the lazy people:stickoutt
Oh you can't be that jealous man. Mr. "I have been driving around in my sickly boosted 2.8 forever without issues, doing multiple drag runs and scaring locals while Cameron's car has been undrivable for way over a year now."

Man...all I got are pictures. :cry

4" body lift FTW :cool
rofl, i wanna join the jack stand racers ive been one for a long time, i got the pics to prove it

Man, your crank looks like a big multi scissors tool! lol:stickoutt impressive!


Back at the garage, highboostingm3 and card counter attempt to install the crank.

C:= "Alright U, grab the other end and help me drop in this crank."
U:= "Ok, you ready C?"
C:= "Nice and easy now."
Slip
U:= "Oh $hit!!! My hand, my hand!!! Aggg, I think I lost a finger!"



Juker008

Back at the garage, highboostingm3 and card counter attempt to install the crank.

C:= "Alright U, grab the other end and help me drop in this crank."
U:= "Ok, you ready C?"
C:= "Nice and easy now."
Slip
U:= "Oh $hit!!! My hand, my hand!!! Aggg, I think I lost a finger!"



Juker008


:rofl

Back at the garage, highboostingm3 and card counter attempt to install the crank.

C:= "Alright U, grab the other end and help me drop in this crank."
U:= "Ok, you ready C?"
C:= "Nice and easy now."
Slip
U:= "Oh $hit!!! My hand, my hand!!! Aggg, I think I lost a finger!"



Juker008
^good story.

Back at the garage, highboostingm3 and card counter attempt to install the crank.

C:= "Alright U, grab the other end and help me drop in this crank."
U:= "Ok, you ready C?"
C:= "Nice and easy now."
Slip
U:= "Oh $hit!!! My hand, my hand!!! Aggg, I think I lost a finger!"



Juker008
:lol :lol
The way to tell Camerons enginge builder is the one with 7 fingers

After beign gone a few days and logging in on here and seeign his sig I was tinking "I wodner how many other people think that's pretty much the coolest thing ive ever seen"

Back at the garage, highboostingm3 and card counter attempt to install the crank.

C:= "Alright U, grab the other end and help me drop in this crank."
U:= "Ok, you ready C?"
C:= "Nice and easy now."
Slip
U:= "Oh $hit!!! My hand, my hand!!! Aggg, I think I lost a finger!"



Juker008


hahahah good one!:lol

Who makes the crank if its not an m50 one? Is it pure custom?
It's called an S52 crank.

M52 and S52 cranks are forged.

I´m talking about forged bmw cranks.
Watch out for cracks:(

My tip is to go for a stock one...

I´m talking about forged bmw cranks.
Watch out for cracks:(

My tip is to go for a stock one...


Seems a good advise from someone very experienced in the BMW boosted world.....:buttrock

Aren't the S50 cranks forged as well? And would using a S52 crank in an S50US mean I'd have to drop to 8:1 CR pistons to keep it between 8:1 and 8.5:1 cr ? I know the S52 crank increases the stroke for a 3 liter, so I would assume it would raise the cr a tad, correct? I plan on using some 8.5:1 forged pistons, but I may go with lower cr if the S52 crank is a better choice than the S50. And would shot-peening and possibly an oil-shedding lubricant coating be a good idea for the crank? I may go the route of the crank-scraper (Yes, I know the difference between it and a windage tray) too. Just trying to ensure the safety of the one internal part that won't be an aftermarket upgrade. I wish you could get an aftermarket forged crank for a reaslonable amount.

I agree with Andreas; my crank isn't knife-edged. Like I said earlier, you want strength in a boosted engine. NA builds and FI builds are different.

Cameron, if you want an ultimate engine buy one of my S50B32s ;-)

I didnt go with a Knife-edged crank for many reasons...

First, the BMW crank is significantly lighter fromt he factory than many other cars cranks...

I like whoever made the squeezing a stone for blood comment, because thats exactly what it is...

If i were building a PURE race car, where everyone has to be within a certain limit, and every ounce lost is an ounce gained over the competition, it can make a difference. For the street it is not worth it IMO, not to mention the compromise in reliability...

Once you start dealing with the characteristics of the oil in an enginer, you are opening a whole new can of worms. You can mess with the squirters and everything else that you can imagine, but for the 1000s of dollars you spend, you aren't going to see a dime of it on the street...

Anyways, i applaud the effort and dedication in this engine. I dont think cammeron is about being practical with this application, but more worried about proving that it can be done...

I hope this baby spools to 25psi by 2800rpm!!:rofl

-Keith

Here is some information on what was done. Now :flamethro away!

The weight is taken off of the counter balance so it has no negative effects on the strength of the crank whatsoever. Besides the knife-edge, the crank was also perp drilled and allen plugged. Basically this means that the crank has much superior oiling to the bearings then the stock crank would. Also because of the reduced roating mass and better oiling to the bearings, the motor can rev higher without sacrificing longevity or durability.

Here is some information on what was done. Now :flamethro away!

The weight is taken off of the counter balance so it has no negative effects on the strength of the crank whatsoever. Besides the knife-edge, the crank was also perp drilled and allen plugged. Basically this means that the crank has much superior oiling to the bearings then the stock crank would. Also because of the reduced roating mass and better oiling to the bearings, the motor can rev higher without sacrificing longevity or durability.
I wasn't flaming, or denying that what you did has its performance benefits...

I was simply stating that for a street car, it is unnecessary. I thought i made that clear when i said that you weren't worried about being practical:dunno

EDIT: Also, it does look like there was a good amount of material taken off BOTH sides of the crank?

I wasn't flaming, or denying that what you did has its performance benefits...

I was simply stating that for a street car, it is unnecessary. I thought i made that clear when i said that you weren't worried about being practical:dunno

EDIT: Also, it does look like there was a good amount of material taken off BOTH sides of the crank?
Oh I wasn't specifically talking about your post. I do understand that it is most people's opinion that KE cranks are not worth it and that is fine. And you are right, practicality isn't always my main goal anyway. ;)

Cam this car better not be a peashooter after all that work with a tiny-azz turbo... :)

Cam this car better not be a peashooter after all that work...
Going with a GT28R just for you! ;)

Going with a GT28R just for you! ;)
now thats instant boost. You shouldnt have an issue spooling that bad boy. So you kept your hybrid Mechtech turbo afterall for a rainy day...:D

now thats instant boost. You shouldnt have an issue spooling that bad boy. So you kept your hybrid Mechtech turbo afterall for a rainy day...:D
Nope! But hey...someone told you something cause I only told one guy about trying out my old Variable Vane Aerocharger turbo I had in the very beginning. Oh crap...cat's out of the bag! :wow

:rofl The widebody will keep her stable and planted to the ground this time around..

:rofl The widebody will keep her stable and planted to the ground this time around..
Right, right, but I just need to make sure I get that half axle company info from CC so I can get them installed. I have the AADB thank god!

Okay...played out now. :D

Here is some information on what was done. Now :flamethro away!

The weight is taken off of the counter balance so it has no negative effects on the strength of the crank whatsoever. Besides the knife-edge, the crank was also perp drilled and allen plugged. Basically this means that the crank has much superior oiling to the bearings then the stock crank would. Also because of the reduced roating mass and better oiling to the bearings, the motor can rev higher without sacrificing longevity or durability.

I think what Andreas means is knife edging BMW forged cranks is not good for a boosted engine....
Superb for NA....but risky strength wise for FI?
Though it looks a work of art so I would ignore all this :stickoutt