Close

Page 3 of 3 FirstFirst 123
Results 51 to 60 of 60
  1. #51
    Join Date
    Apr 2010
    Location
    Earth
    Posts
    5,173
    Rep Points
    526.1
    Mentioned
    4 Post(s)
    Rep Power
    6


    Yes Reputation No
    Click here to enlarge Originally Posted by tron Click here to enlarge
    Pretty sure manufacturers don't specify "ratings" on parts. They produce them to X specification and within Y threshold depending on what that part is used for. We then do whatever we do when modifying these cars and see what the part can handle.

    For instance, many cars with redlines under 7k rev to over 9-10k on stock cranks. Our stock rods handle 600+whp. Certainly, neither of these examples are how the manufacturer intended the part to be used.
    They can handle 600whp, but not for long. They will weep and bend. Some can say that the stock rods may have been under rated/over built for an n/a motor. I would love to see someone make custom cranks for our cars like some do for other cars. I think I maybe giving a call to a certain race team today to dig for more info. Good post Tron.
    Click here to enlargeClick here to enlarge

  2. #52
    Join Date
    Apr 2010
    Posts
    180
    Rep Points
    36.7
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    But they have been proven to handle 500-550whp for a long period of time.

    Semantics are semantics. The point was OEM parts aren't "rated" for aftermarket usage.

  3. #53
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    118,794
    Rep Points
    31,796.7
    Mentioned
    2084 Post(s)
    Rep Power
    318


    Yes Reputation No
    Click here to enlarge Originally Posted by tron Click here to enlarge
    Pretty sure manufacturers don't specify "ratings" on parts. They produce them to X specification and within Y threshold depending on what that part is used for. We then do whatever we do when modifying these cars and see what the part can handle.

    For instance, many cars with redlines under 7k rev to over 9-10k on stock cranks. Our stock rods handle 600+whp. Certainly, neither of these examples are how the manufacturer intended the part to be used.
    Does the Euro S52 have a different crank?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  4. #54
    Join Date
    Apr 2010
    Posts
    179
    Rep Points
    62.0
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Does the Euro S52 have a different crank?
    Exactly. What was done differently to that crank?

    I don't doubt that something different might need to be done to the crank for 9k or so redline, I'm just wondering what it is. My previous crank was knife edged and perfectly balanced/blueprinted with the entire rotating assembly...could it have gone 9k all day long with all the Ferrea valvetrain?
    Click here to enlargeClick here to enlarge
    | Finally I got a photographer to take some decent shots from the beach. Me 8/22/2010 loving San Diego! |
    | TRM | The Racers Market | Turbo M3 | 559whp@18psi | Dynojet Confirmed 6-1-2010 |
    | Video of the session when the pic above was taken! In HD! |

  5. #55
    Join Date
    Apr 2010
    Posts
    180
    Rep Points
    36.7
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Does the Euro S52 have a different crank?
    Yes.
    Click here to enlarge Originally Posted by highboostingm3 Click here to enlarge
    Exactly. What was done differently to that crank?

    I don't doubt that something different might need to be done to the crank for 9k or so redline, I'm just wondering what it is. My previous crank was knife edged and perfectly balanced/blueprinted with the entire rotating assembly...could it have gone 9k all day long with all the Ferrea valvetrain?
    No, its not about knife edging the crank and balance/blueprinting it. Ask Mike his opinion.

    I have read about it before, but it was a couple years ago. Its interesting, but I don't plan on revving an m50 over 7400, so I am not going to spend 2-3 hrs searching and reading through threads right now. Sorry dude. Feel free to do so and report back. Click here to enlarge

  6. #56
    Join Date
    Feb 2010
    Location
    Netherlands
    Posts
    105
    Rep Points
    -29.9
    Mentioned
    2 Post(s)
    Rep Power
    0


    Yes Reputation No
    There is no Euro S52 you mean the Euro S50B30(286hp) and S50B32(321hp).

  7. #57
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    118,794
    Rep Points
    31,796.7
    Mentioned
    2084 Post(s)
    Rep Power
    318


    Yes Reputation No
    Click here to enlarge Originally Posted by daytonaM3 Click here to enlarge
    There is no Euro S52 you mean the Euro S50B30(286hp) and S50B32(321hp).
    Yes yes, they knew what I meant.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  8. #58
    Join Date
    Apr 2010
    Posts
    179
    Rep Points
    62.0
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by tron Click here to enlarge
    Yes.

    No, its not about knife edging the crank and balance/blueprinting it. Ask Mike his opinion.

    I have read about it before, but it was a couple years ago. Its interesting, but I don't plan on revving an m50 over 7400, so I am not going to spend 2-3 hrs searching and reading through threads right now. Sorry dude. Feel free to do so and report back. Click here to enlarge
    Hahaha no problem. I would never expect you to do that. I will have to do some reading but I'm thinking that by doing such the power curve might transfer to the right even more than with the turbo cams. That is not my wish at all or I might as well go modify a Honda. In fact down the line I intend to toss in some standard s52 cams to see how much my turbo cams have pushed my power curve to the right. Obviously it would be ideal to have full boost before 3,500rpm and power lasting until 9,000rpm.
    Click here to enlargeClick here to enlarge
    | Finally I got a photographer to take some decent shots from the beach. Me 8/22/2010 loving San Diego! |
    | TRM | The Racers Market | Turbo M3 | 559whp@18psi | Dynojet Confirmed 6-1-2010 |
    | Video of the session when the pic above was taken! In HD! |

  9. #59
    Join Date
    May 2010
    Location
    FU
    Posts
    1,091
    Rep Points
    -394.8
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by highboostingm3 Click here to enlarge
    Exactly. What was done differently to that crank?

    I don't doubt that something different might need to be done to the crank for 9k or so redline, I'm just wondering what it is. My previous crank was knife edged and perfectly balanced/blueprinted with the entire rotating assembly...could it have gone 9k all day long with all the Ferrea valvetrain?
    It wasn't that something was done to the euro CRANK.
    As Ben Kenobi recently mentioned, "look at the front of the Euro S50 engine."

    I'm interested to hear the SPECIFICS of how they balanced your crank.
    What process did they go through?

    After they rid of most of the vibrations,
    at what RPM were there still vibrations left?

    The materials/metals can determine
    your rotating assembly's vibrations.

    Ben was noting that cast cranks tend to reduce vibrations BETTER than forged cranks in some applications,
    which does not help us
    as many of us are using a forged S52 crank.
    The vibration differences may be minimal.

    Ridding our rotating assy's of these harmful vibrations at certain frequencies
    requires BAND AIDS.
    It seems that the European S50 received a BETTER band aid.

    A member of bf.c recently claimed to have solved the problem
    and would be revving over 8000 rpm with NO problems in his M50 based car.
    He would NOT disclose the secret at the time,
    but sounded confident.

    We wait.

    (Sorry for the OFF TOPIC in such a pron-laden thread.)
    Click here to enlarge
    www
    milkt org

  10. #60
    Join Date
    Apr 2010
    Location
    Earth
    Posts
    5,173
    Rep Points
    526.1
    Mentioned
    4 Post(s)
    Rep Power
    6


    Yes Reputation No
    bavarian have any dyno sheets graphs with the cams they have being used on a gt35r setup?
    Click here to enlargeClick here to enlarge

Page 3 of 3 FirstFirst 123

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •