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  1. #41
    9k rpm crew
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    Quote Originally Posted by Andreas Miko View Post
    I think the crank is billet just like the Mazwork crank 100%.


    The machining process of the crank will determine if the machines surface of the leading edge would be polished or not. It all has to do with the cutting tool that they use to chip away at it with which detirmines the surface grit
    Lol, I missed your sarcasm on post#28.

    I said what I said based on what you quoted as a billet:

    Quote Originally Posted by Andreas Miko View Post
    Think of billet cranks as an offshoot of forged cranks. Like a forging, a billet crank starts out as a large cylindrical ingot of steel. However, while a forged crank is compressed during the forging process, the steel ingot used in a billet crank is already forged, albeit not quite as compressed as in a forged crank. The key difference between the two is how the ingots are shaped into cranks. "The metal bar used to make a forged 4.000-inch SBC crank measures about 4.75-inches in diameter and the crank's total width ends up being 6.75 inches when the forging process is complete," Lieb says. "The metal bar used in a billet crank of the same stroke is much larger, at roughly 8 inches, weighing 350 lbs compared to 150 lbs in a forged crank. Instead of twisting and pounding the metal in different directions as with a forging, a billet crank is made by whittling away the metal so the grain structure runs parallel throughout the entire length of the crank." Due to the increase in materials and labor over a forged crank, billet cranks are the most expensive of them all. Custom one-offs carry price tags in the neighborhood of $3,000. As for whether a billet crank is stronger than a forging, because there is no consensus in the industry, the various manufacturers will duke it out later in the story and we'll let you make the call.
    It seem like you are arguing for both side. First giving us a defintion of a billet and then showing us a photo of a non-billet crankshaft. BTW, a machined surface does not have a orange peel surface like the example you posted.

    Atleast know what a true billet crankshaft looks like. This is and example of the truest sense the word billet: Crankshaft - Cosworth USA

    I'm not going to argue over semantics. If you say it's a billet then fine it's a billet. Good for you directing us to a cheap alternative.

  2. #42
    Jah Guide
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    5 speed, I just think Billet or Forged will do the job just fine.

    As long as it is not cast then you are good. With that being said The factory SR20DE crank is cast and I have seen a few cars at 600-750 WHP with the stock crank so the arguement on material mybe just a mute point.
    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

    I Am A JWT Dealer And VRS Dealer.

    If you need any help 305-282-3643

    I sell SR20VE, SR20DE and SR20DET motors

  3. #43
    The People's Mod
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    That's what I really wanted to know. I always thought our cranks were forged (and Ahston says they are). You say they are cast? That's really surprising from Nissan in this engine. Time to go look that up for my own peace of mind.

  4. #44
    Jah Guide
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    5 speed, I think the crank you posted looks like that because they polished it. They do this so oil does not stick to it. Very nice pc.

    4340 > EN40B

    4340 is stronger and has a harder surface area. The EN40B is easier to work with.

    Lets just hope the Chinese do a good 4340 metal.
    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

    I Am A JWT Dealer And VRS Dealer.

    If you need any help 305-282-3643

    I sell SR20VE, SR20DE and SR20DET motors

  5. #45
    A.K.A Na Nissan
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    Quote Originally Posted by Andreas Miko View Post
    5 speed, I think the crank you posted looks like that because they polished it. They do this so oil does not stick to it. Very nice pc.

    4340 > EN40B

    4340 is stronger and has a harder surface area. The EN40B is easier to work with.

    Lets just hope the Chinese do a good 4340 metal.


    I think MIKO is getting ready to try something.

  6. #46
    Jah Guide
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    Quote Originally Posted by BenFenner View Post
    That's what I really wanted to know. I always thought our cranks were forged (and Ahston says they are). You say they are cast? That's really surprising from Nissan in this engine. Time to go look that up for my own peace of mind.
    This pic below shows that the stock SR20DE crank is cast. You can see the casting marks going down the center. This is where they seperate the mold. You can also see the very rough surface where there was no machine work done.

    Good Thoughts Bring Good Vibes Which Bring Good Reasoning

    I Am A JWT Dealer And VRS Dealer.

    If you need any help 305-282-3643

    I sell SR20VE, SR20DE and SR20DET motors

  7. #47
    9k rpm crew
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    Default .............................

    Quote Originally Posted by Black Trunk View Post
    I think MIKO is getting ready to try something.
    Yeah right.
    95 240sx
    91 NX2000 VE
    protech-fabrication

  8. #48
    The People's Mod
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    Yah, no need for me to look it up. That's cast all right. Weird...
    Oh well.

  9. #49
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    Default WOW

    where was this 7 months ago?
    AccountKiller

  10. #50
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    Quote Originally Posted by Teal97 View Post
    where was this 7 months ago?
    It's actually been on eBay for quite sometime.
    Tired..of the bullshit.

  11. #51
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    Quote Originally Posted by SR20GTi-R View Post
    It's actually been on eBay for quite sometime.
    DOH!
    Last edited by Teal97; 11-04-10 at 11:33 PM.
    AccountKiller

  12. #52
    Weekend Warrior
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    - Does anybody have any new information on this crank?
    Bend But Don't Break
    93 SE-R Project 2Door - 2.0VE Gio tune - built 2.3VE up next.
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    NA is a thinking man's game, alot of people dont have the stomach to play NA.

  13. #53
    BLUE RAY PWNES ME
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    Im about to order one. i dont think you can go wrong. Its lighter then stock, big stroke and cheap.

    Ill knife the it out and itll be perfect.

    Stratton.

  14. #54
    The Little SE-R Guy
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    Quote Originally Posted by STRATTON View Post
    Im about to order one. i dont think you can go wrong. Its lighter then stock, big stroke and cheap.

    Ill knife the it out and itll be perfect.

    Stratton.
    I'm curious to see how this ends make sure to post up.
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  15. #55
    SR20DET LE-R
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    If cast cranks are so bad, why does Mazworx use an OEM SR20 one in their 1400hp Silvia?
    Sig. nazis got me.

 

 
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