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

Timbo_021

Senior Member

Posts: 514
#16

12-07-2007, 06:44 PM

whats torque spec?ive looked around on google but not much comes up..

Straya, +61
Bernardd
#17

12-07-2007, 08:48 PM

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Timbo_021

Senior Member

Posts: 514
#18

01-02-2008, 08:54 PM

Something went wrong somewhere,theres not enough pressure so once the fluid warms up it slips terribly.Gonna rip out the transmission today and put in the spare and leave it at that.What a waste of effort :-(

Straya, +61
G-E

Junior Member

Posts: 6320
#19

02-15-2008, 02:10 AM

was this a non-turbo auto?
Shady195

Senior Member

Posts: 679
#20

05-05-2008, 06:40 PM

I belive its for both

1989 300ZX 2+2 N/A GLL
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NA2T Complete

HowlerMonkey

Member

Posts: 75
#21

09-16-2008, 12:39 PM

Turbos got a stronger tranny.

In terms of the 3n71b, you got more friction material and thicker output shaft.

I don't remember if the 4n71b got a thicker output shaft but I do know it has more friction material so the turbo implementations would be better starting points.
HowlerMonkey

Member

Posts: 75
#22

04-24-2009, 06:30 PM

There are also some 4n71b with 4 planets instead of 3.

I believe one can peice together the strongest possible 4n71b using parts from both the RX-7 version and the Z31 version.
Bernardd
#23

01-18-2010, 09:04 PM

x
Crazy

Senior Member

Posts: 619
#24

01-28-2010, 06:41 PM

Are these directions for building the auto trans into a manual shift?
https://fund-solvaren.com.

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
Bernardd
#25

01-29-2010, 08:57 AM

x

Crazy

Senior Member

Posts: 619
#26

01-29-2010, 11:19 AM

Are there any other supporting mods that that must be done to use this valve body? Vacuum modulator and or governor circuit?

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
Bernardd
#27

01-29-2010, 01:11 PM

v
Grr

Senior Member

Posts: 331
#28

01-29-2010, 05:58 PM

how much?

87 Turbo: Stock VG33, stock cams, maxima intake, T5, DXD stage 3 clutch, tubular stainless headers, GT3582r, full 3" stainless exhaust, E85 680cc inj. and Nistune
current time: 13.39@106, 2.05 60' 12psi with old stock 85T motor and street tires!
Bernardd
#29

01-29-2010, 06:51 PM

a
Crazy

Senior Member

Posts: 619
#30

01-29-2010, 09:42 PM

What holes were blocked off on the separator plate?
When you say the modulator is disconnected, is it just as simple as disconnecting the vacuum line?

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