Jatco 3N71B/4N71B (automatic trans) buildup information

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  • #31
    x
  • #32
    Bernardd wrote: You'll have to compare a stock seperator plate on the left in the first pic to the keas plate on the right. And yes you just can unplug the line or leave it it but it won't do anything. Neither will the kickdown solenoid.
    What did the manualized Keas valve body cost. Modding the separator plate looks like a lot of work and would be a lot easier just getting one from Keas.
    Black 1986 300zx Turbo coupe (Chuki)
    http://z31performance.com/showthread…86-Turbo-Coupe
    ----------------------------------------------------------------------------------------------------------------
    Pewter 1986 300zx N/A 2 Turbo 2+2 (Chuki)
    http://z31performance.com/showthread…9;s-1986-300zx
  • #33
    j
  • #34
    This looks like a good shop http://www.gzm.com.au/transmissions.htm
    Black 1986 300zx Turbo coupe (Chuki)
    http://z31performance.com/showthread…86-Turbo-Coupe
    ----------------------------------------------------------------------------------------------------------------
    Pewter 1986 300zx N/A 2 Turbo 2+2 (Chuki)
    http://z31performance.com/showthread…9;s-1986-300zx
  • #35
    h
  • #36
    Here is the email i recieved:
    Hi Jason Prices Below
    Stage 3 shift kit valve body only $220.00 c/o
    Full manuel valve body $462.00c/o
    Bilit Servos must be fitted with full manuel valve bodies for shift quality
    Billet servo $110.00 Each 2 are needed Regards Goran GZM

    What does c/o mean??
    Black 1986 300zx Turbo coupe (Chuki)
    http://z31performance.com/showthread…86-Turbo-Coupe
    ----------------------------------------------------------------------------------------------------------------
    Pewter 1986 300zx N/A 2 Turbo 2+2 (Chuki)
    http://z31performance.com/showthread…9;s-1986-300zx
  • #37
    x
  • #38
    Bernardd wrote: Change over? Maybe he wants your valve body to modify? Or a core back? How much power are you planning on making? I found that the shift mods worked well upto 450whp. The only reason I wanted the full manual was because I needed a quicker 2-3 shift. To make it faster the throttle and govenor circuits had to be eliminated and it shifts instantly when asked to.
    I'm just getting ideas together for my 240sx build. What i have so far is a rust free clean 240sx with no motor a vg30, a turbo jatco 4n71b trans, and a Holset HX35. At a estimated 2500 lb race weight i may have some wheel spin issues so i was thinking about using a manual valve body to prevent wheelspin up shift problems.
    Black 1986 300zx Turbo coupe (Chuki)
    http://z31performance.com/showthread…86-Turbo-Coupe
    ----------------------------------------------------------------------------------------------------------------
    Pewter 1986 300zx N/A 2 Turbo 2+2 (Chuki)
    http://z31performance.com/showthread…9;s-1986-300zx
  • #39
    x
  • #40
    i just want to say that this is AMAZING!!!
  • #41
    i guess too i was kind of curious about the torque converter, 'cause it seems like you guys have the valve bodies figured out but what are you guys doing with the stock torque converter??
  • #42
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  • #43
    3k seems a bit high…i'm looking for no more than 2200 rpm for stall…
  • #44
    Stupid question:

    Can these mods (or rather, the valve body mod) be done with the tranny still connected and everything or does it HAVE to come off the engine/body? If I gave this information to a mechanic (a good one) would he be able to build it like that?
  • #45
    x
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