Speedo not working due to tranny swap help please - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

DewMan000 · 02-12-2016, 04:47 PM

So I just purchased my first 240. It's a 97 s14 with a ka24de-t and a swapped c009 350z tranny and because of the swap my Speedo won't work. How do I fix it?

rawgarage · 02-12-2016, 06:03 PM

No speed sensor on Z trannys

rawgarage · 02-12-2016, 06:04 PM

If you ran an S15 diff you could get a speed reading off that

RickS14 · 02-12-2016, 06:13 PM

I have a autometer GPS. Haven't installed it yet. But could be a solution.

DewMan000 · 02-12-2016, 07:25 PM

Anyway to hook up a sensor without switching out my diff?

RickS14 · 02-12-2016, 10:09 PM

This is what I'm talking about some sc guys running the cd Trans use this.

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DewMan000 · 02-13-2016, 03:43 PM

Thanks I'm gonna put one in save myself the trouble of changing out the diff

RickS14 · 02-13-2016, 08:23 PM

No problem trying to help.

Sent from my iPhone using Tapatalk

collegekid · 02-15-2016, 09:22 PM

I forget which company (maybe Dakota digital) but there was a unit that had you install something on your driveshaft and it measured that to give you a speedometer signal.

A google search showed spectec engineering has some sensors.

Honestly I would call the driveshaft shop, they could recommend you to someone. Im sure there's a way you can get a simple digital signal setup. I didn't know about the cd trans not having a vss in them.

LoSt180 · 02-17-2016, 10:35 AM

The speedo sensors are in the rear diff on the 350Z, similar to the S15 setup. The ABS signal is used for the speedo in the Z33 (2 sensors) and the S15 (1 sensor). You need an ABS diff from an S14/S15, or J30 or I think Z32. These have an ABS sensor in the front of the diff, the Dakota digital box can then be used to "convert" the ABS signal into the speedo signal.

The GPS sensor is probably a good option if you can't find an ABS diff, but I'd be worried how reliable it is (signal dropping due to trees, tunnels, etc).

DewMan000 · 02-26-2016, 09:18 PM

Not too worried about it dropping out I just need a Speedo that works so I can get it stickered they're kinda douches about things like that here in New Hampshire

02-12-2016, 04:47 PM	#1
DewMan000 Join Date: Feb 2016 Location: Jaffrey New Hampshire Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	Speedo not working due to tranny swap help please So I just purchased my first 240. It's a 97 s14 with a ka24de-t and a swapped c009 350z tranny and because of the swap my Speedo won't work. How do I fix it?

02-12-2016, 10:09 PM	#6
RickS14 Zilvia Member Join Date: Oct 2012 Location: CLEVELAND Posts: 218 Trader Rating: (2) Feedback Score: 2 reviews	Speedo not working due to tyranny swap help please This is what I'm talking about some sc guys running the cd Trans use this. Sent from my iPhone using Tapatalk

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02-12-2016, 06:03 PM	#2
rawgarage Banned from the Marketplace Join Date: Oct 2007 Location: h o u s t o n Age: 32 Posts: 5,990 Trader Rating: (75) Feedback Score: 75 reviews	No speed sensor on Z trannys

02-12-2016, 06:04 PM	#3
rawgarage Banned from the Marketplace Join Date: Oct 2007 Location: h o u s t o n Age: 32 Posts: 5,990 Trader Rating: (75) Feedback Score: 75 reviews	If you ran an S15 diff you could get a speed reading off that

02-12-2016, 06:13 PM	#4
RickS14 Zilvia Member Join Date: Oct 2012 Location: CLEVELAND Posts: 218 Trader Rating: (2) Feedback Score: 2 reviews	I have a autometer GPS. Haven't installed it yet. But could be a solution.

02-12-2016, 07:25 PM	#5
DewMan000 Join Date: Feb 2016 Location: Jaffrey New Hampshire Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	Anyway to hook up a sensor without switching out my diff?

02-13-2016, 03:43 PM	#7
DewMan000 Join Date: Feb 2016 Location: Jaffrey New Hampshire Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	Thanks I'm gonna put one in save myself the trouble of changing out the diff

02-13-2016, 08:23 PM	#8
RickS14 Zilvia Member Join Date: Oct 2012 Location: CLEVELAND Posts: 218 Trader Rating: (2) Feedback Score: 2 reviews	No problem trying to help. Sent from my iPhone using Tapatalk

02-15-2016, 09:22 PM	#9
collegekid Zilvia Addict Join Date: Jan 2011 Location: In my house Age: 29 Posts: 755 Trader Rating: (3) Feedback Score: 3 reviews	I forget which company (maybe Dakota digital) but there was a unit that had you install something on your driveshaft and it measured that to give you a speedometer signal. A google search showed spectec engineering has some sensors. Honestly I would call the driveshaft shop, they could recommend you to someone. Im sure there's a way you can get a simple digital signal setup. I didn't know about the cd trans not having a vss in them.

02-17-2016, 10:35 AM	#10
LoSt180 Zilvia Addict Join Date: May 2013 Location: MD Posts: 966 Trader Rating: (18) Feedback Score: 18 reviews	The speedo sensors are in the rear diff on the 350Z, similar to the S15 setup. The ABS signal is used for the speedo in the Z33 (2 sensors) and the S15 (1 sensor). You need an ABS diff from an S14/S15, or J30 or I think Z32. These have an ABS sensor in the front of the diff, the Dakota digital box can then be used to "convert" the ABS signal into the speedo signal. The GPS sensor is probably a good option if you can't find an ABS diff, but I'd be worried how reliable it is (signal dropping due to trees, tunnels, etc).

02-26-2016, 09:18 PM	#11
DewMan000 Join Date: Feb 2016 Location: Jaffrey New Hampshire Age: 31 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	Not too worried about it dropping out I just need a Speedo that works so I can get it stickered they're kinda douches about things like that here in New Hampshire