Auto SR20 questions - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

solo_ryder · 11-23-2014, 01:24 PM

I have searched all over but I cannot find a specific answer.

I am looking into buying a AUTO S14 sr20 motor/trans. What I need to know is:

1. Are there any differences between the AUTO and 5 speed sr motor?? (same turbo, ECU, etc) I heard the turbo on a sr auto is a t25?

2. Will I have any issues mounting the 5 speed trans? I assume I just need a flywheel, clutch etc and the trans will mount right up?

3. I plan on ordering a harness from WS. I see the ECU is a WE ecu and I have read on another thread it will work. But will I have to mess with the neutral switch etc??

Silverbullet · 11-24-2014, 06:32 AM

the motor and turbo are the same. The ECU is different, the TPS is different, the harness is slightly different to accomodate those differences.

l adam l · 11-24-2014, 08:55 AM

You're going to buy it and swap it to 5 speed as soon as you buy it? ...how much money are you 'saving' $2-300? Sell your trans you plan on putting on it and just buy a 5 speed sr20 and save yourself the headache and probably some $$$

5280VertDET · 11-24-2014, 10:07 AM

Quote:

Originally Posted by l adam l

You're going to buy it and swap it to 5 speed as soon as you buy it? ...how much money are you 'saving' $2-300? Sell your trans you plan on putting on it and just buy a 5 speed sr20 and save yourself the headache and probably some $$$

He probably has a trans already. Plus, the odds of an auto SR being driven "into the ground" are lower.

Either way, its not much work if you have 5 speed chassis or are converting it to 5 speed.

There is a write up from someone about converting the TPS wiring to work.

If it were me, I'd take the money I saved from the auto Sr and get a WS harness made; I hated wiring my S13 though...

Silviastunter · 11-24-2014, 12:11 PM

I bought my SR auto, and 5 speed swapped it PO liked automatic. And I still ran the auto ecu runs just fine with it only difference is I can start it with no clutch in. And I believe the auto ecu has higher rev limit.

solo_ryder · 11-26-2014, 06:40 PM

Yea I already have a 5 speed chassis and a trans! I would be getting a harness from WS. I know the TPS are different I read somewhere once that you only have to use one of the 2 plugs if you have a 5 speed harness.

5280VertDET · 11-26-2014, 09:27 PM

Quote:

Originally Posted by solo_ryder

Yea I already have a 5 speed chassis and a trans! I would be getting a harness from WS. I know the TPS are different I read somewhere once that you only have to use one of the 2 plugs if you have a 5 speed harness.

Yup, bro. You're golden. Get on the WS black friday deal!

11-23-2014, 01:24 PM	#1
solo_ryder Zilvia Junkie Join Date: Mar 2011 Location: The True North Posts: 533 Trader Rating: (18) Feedback Score: 18 reviews	Auto SR20 questions I have searched all over but I cannot find a specific answer. I am looking into buying a AUTO S14 sr20 motor/trans. What I need to know is: 1. Are there any differences between the AUTO and 5 speed sr motor?? (same turbo, ECU, etc) I heard the turbo on a sr auto is a t25? 2. Will I have any issues mounting the 5 speed trans? I assume I just need a flywheel, clutch etc and the trans will mount right up? 3. I plan on ordering a harness from WS. I see the ECU is a WE ecu and I have read on another thread it will work. But will I have to mess with the neutral switch etc??

11-24-2014, 12:11 PM	#5
Silviastunter Leaky Injector Join Date: Jul 2013 Location: Seattle Posts: 85 Trader Rating: (0) Feedback Score: 0 reviews	I bought my SR auto, and 5 speed swapped it PO liked automatic. And I still ran the auto ecu runs just fine with it only difference is I can start it with no clutch in. And I believe the auto ecu has higher rev limit.

11-26-2014, 06:40 PM	#6
solo_ryder Zilvia Junkie Join Date: Mar 2011 Location: The True North Posts: 533 Trader Rating: (18) Feedback Score: 18 reviews	Yea I already have a 5 speed chassis and a trans! I would be getting a harness from WS. I know the TPS are different I read somewhere once that you only have to use one of the 2 plugs if you have a 5 speed harness.