s13 rb25 swap

Thread in 'Technical Questions' started by midnight_purple_s13, Mar 11, 2023.

  1. midnight_purple_s13

    midnight_purple_s13 New Member

    Joined:
    Apr 13, 2021
    Posts:
    7
    Likes Received:
    0
    i have an s13 with an rb25 an an r33 subframe. my problem is that the engine sits too high with oem engine mounts. i have found shorter mounts but these puts the engine more back and i dont know if it will fit with the head drain kit i have on the engine. is there anyone that have the same swap that can give me some info?

    304792870_869645020834800_8498899509088014642_n.
     
  2. thebe

    thebe Member

    Joined:
    Feb 25, 2015
    Posts:
    136
    Likes Received:
    20
    "Head drain" is basically just an added breather for the oil sump. You can just weld a fitting and add a breather hose/tank for the oil sump and save the space behind head. There's a massive oil control topic on SAU forums that is well worth the read.

    https://www.sau.com.au/forums/topic/110680-oil-control-in-rbs-for-circuit-drag-or-drift/

    Edit: Now that I read your message again I see that you have the drain kit already fitted, so my post might not be the most helpful :D
     
  3. BenRice

    BenRice Well-Known Member

    Joined:
    Apr 23, 2014
    Posts:
    1,771
    Likes Received:
    300
    A31 or C33 subframe sits the engine in the best spot (I believe that’s what is in mine)
     
  4. midnight_purple_s13

    midnight_purple_s13 New Member

    Joined:
    Apr 13, 2021
    Posts:
    7
    Likes Received:
    0
    What enginemounts do you use?
    What engine mounts do you use?
     
  5. BenRice

    BenRice Well-Known Member

    Joined:
    Apr 23, 2014
    Posts:
    1,771
    Likes Received:
    300
    Stock R33 I believe
     
  6. midnight_purple_s13

    midnight_purple_s13 New Member

    Joined:
    Apr 13, 2021
    Posts:
    7
    Likes Received:
    0
    Do you hve oem intake manifoild? Because i have to use the oem to get my car street legal. But it touches the hood with oem mounts
     
  7. BenRice

    BenRice Well-Known Member

    Joined:
    Apr 23, 2014
    Posts:
    1,771
    Likes Received:
    300
    I did cut out some webbing to clear
     

Share This Page