Results 1 to 12 of 12

Thread: who's running a 2028 Castle

  1. #1

    Default who's running a 2028 Castle

    I guess they need a 1/4 shaft ,, I figured turning a 457/3 I would be good,, but I guess the 11 HP destroyed the 3/16 shaft is 50 ft live and learn what about the long motor shaft does that need to be cut so the collect is a little closer to the motor I'm thinking it should ,,

  2. #2

    Default

    I run 1/4” with mine.
    Tyler Garrard
    NAMBA 639/IMPBA 20525
    T-Hydro @ 142.94mph former WR

  3. #3

    Default

    I guess the 11 h.p. electric would be simular to a 90 size glow engine , 1/4 inch shaft for sure.

  4. #4

    Default

    Quote Originally Posted by RaceMechaniX View Post
    I run 1/4” with mine.
    Thanks guys Tyler what about the Long motor shafts I have at least 5/8 of exposed shaft behind the collet thanks chris


    Sent from my iPhone using Tapatalk

  5. #5

    Default

    Chris, if the shaft was a 5mm diameter size i would cut it down shorter but being an 8mm it should be fine at that spacing.

  6. #6

    Default

    Quote Originally Posted by rol243 View Post
    Chris, if the shaft was a 5mm diameter size i would cut it down shorter but being an 8mm it should be fine at that spacing.
    Yes it 8 mm thanks man


    Sent from my iPhone using Tapatalk

  7. #7

    Default

    Chris,
    I don't like extra shaft off the end of the motor if I can avoid it. I did cut the stock 2028 shaft down so I only have room for a thrust washer if needed and the collet.
    If cutting the motor shaft means you need to replace the flex shaft too, then it can probably wait.

    -Tyler
    Tyler Garrard
    NAMBA 639/IMPBA 20525
    T-Hydro @ 142.94mph former WR

  8. #8

    Default

    Quote Originally Posted by RaceMechaniX View Post
    Chris,
    I don't like extra shaft off the end of the motor if I can avoid it. I did cut the stock 2028 shaft down so I only have room for a thrust washer if needed and the collet.
    If cutting the motor shaft means you need to replace the flex shaft too, then it can probably wait.

    -Tyler
    Me to.

  9. #9

    Default

    Quote Originally Posted by RaceMechaniX View Post
    Chris,
    I don't like extra shaft off the end of the motor if I can avoid it. I did cut the stock 2028 shaft down so I only have room for a thrust washer if needed and the collet.
    If cutting the motor shaft means you need to replace the flex shaft too, then it can probably wait.

    -Tyler
    You know I knew that,, I just needed a little push LOL , reciprocating mass like that hanging off the end of the shaft could do some damage if suddenly goes out of balance , where if it was cut shorter and closer to the case it would be much safer and less vibration thanks Tyler
    Quote Originally Posted by Moonie View Post
    Me to.
    Yea and me too lol need that push ,,,I have to re do the drive line anyway to 1/4". I'll just take the cut off wheel to it thanks Chris

  10. #10

    Default

    pretty hard to bend 8mm hardened steel thats only about 1 inch long.

  11. #11

    Default

    The biggest reason is to reduce the radial forces on the bearings from any imbalance in the coupler and/or shaft.
    Shorter shaft and a snug fitting coupler are key.
    Tyler Garrard
    NAMBA 639/IMPBA 20525
    T-Hydro @ 142.94mph former WR

  12. #12

    Default

    Quote Originally Posted by rol243 View Post
    pretty hard to bend 8mm hardened steel thats only about 1 inch long.
    not at 30,000 rpm better safe then sorry thanks guys !!!!

Bookmarks

Bookmarks

Posting Permissions

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