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Thread: RPM Range

  1. #1
    Join Date
    Jan 2008
    Location
    Elk Grove, CA
    Posts
    130

    RPM Range

    Here’s a question, hopefully not a dumb question. A mechanic buddy of mine was asking me what my RPMs were at 70 mph, I told him they were at 2000 and he told me that was about right for that 700R4 transmission and said he would be fine with it, what do you guys think?



  2. #2
    Join Date
    Apr 2011
    Location
    Rosser Manitoba Canada
    Posts
    65
    Country Flag: Canada
    What rear end gear do you have?

  3. #3
    Join Date
    Apr 2011
    Location
    Rosser Manitoba Canada
    Posts
    65
    Country Flag: Canada
    My calcs without any slippage is 3.15 - 3.20

  4. #4
    Join Date
    Jan 2008
    Location
    Elk Grove, CA
    Posts
    130
    Quote Originally Posted by egoman View Post
    What rear end gear do you have?
    I don’t know, that’s why I’m asking for advice, I have and 8.5 10 bolt under it now. I know a 3.42 would be ideal

  5. #5
    Join Date
    Jan 2008
    Location
    Elk Grove, CA
    Posts
    130
    I have an 8.5 10 bolt rear end. I have a 12 bolt rear end out of an early Nova that is narrower but I’d rather sell that to go in the car it should go in.