going SOHC to s14 DOHC need advise on... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*DALAZ_68* · 08-02-2007, 12:03 AM

so my engine blew a while ago and basically i NEED to make it live (my only means of transport)so i was able ot pick up a complete DOHC from a 95 240 with full engine harness and ECU
im wondering what are gonna be my big obsticles...
i read the e to de swap how to...but thats from a s13 to s13 engine...im going to s13 to s14 engine...though i knoe the KA's are same...im just wondering is there are any differences from the 95+ KA that i should factor in...
the on big difference i can see is the positioning of the P/S pump, and the canister...
any suggestions of how to switch it over...and will my cluster work, if not...will a 95 cluster fit in my s13 !?!?!?
please guys i need help on this...
money isnt musch of an issue...its just time....i need to get done b4 monday wen i start my new job

undesiredshoe · 08-02-2007, 12:08 AM

theres a how to thread on this already...search!

*DALAZ_68* · 08-02-2007, 11:03 AM

i did SEARCH!

and i read his post

but my engine has 350 injectors wihta an ecu thats been flashed for it...

so im wondering is it possible to mate an s13 DOHC harness to a s14 DOHC ecu? so i can run the injectors no prob?!

95Blue240sx · 08-02-2007, 01:03 PM

WTH are you talking about? Your title says going from SOHC to DOHC. In this ^^^^ post you are saying s13 DOHC to s14 DOHC. Which is it??

*DALAZ_68* · 08-02-2007, 06:31 PM

Quote:

Originally Posted by 95Blue240sx

WTH are you talking about? Your title says going from SOHC to DOHC. In this ^^^^ post you are saying s13 DOHC to s14 DOHC. Which is it??

wut i was sayin was do i need a DOHC s13 wire harness to be able to connect to my s14 ecu

Nikeboy355: i have the distributer, and pump lines...

the gauge can wait for a week or so...from wut ur sayin is i just need a DOHC s13 wire harness... quick question though... does the DOHC s13 harness have to come from a MT, or is the AT and MT harness both same?...or does it matter? keep in mind im doing an engine swap only tranny is 5sp

Quote:

Originally Posted by 89dc240

You need a dohc tach and a lower intake off a obd1 car.

the lower intake??? is that the part that connect to the headers??

*DALAZ_68* · 08-02-2007, 10:34 PM

my biggest question is qhy do i need the distributer from a s13 DOHC if im running the s14 wire harness?!??!?!?!?!?!?!?

can anyone answer this for me

**mrmephistopheles** · 08-02-2007, 11:33 PM

Quote:

Originally Posted by DALAZ_68

my biggest question is qhy do i need the distributer from a s13 DOHC if im running the s14 wire harness?!??!?!?!?!?!?!?

can anyone answer this for me

No, because the S14 ECU is designed to work with the S14 distributor (which has an internal coil) as opposed to the S13's distributor (which uses an external coil).

lazierhobo · 08-02-2007, 01:43 PM

im pretty sure he is going from an SOHC to a S14 DOHC

89dc240 · 08-02-2007, 02:03 PM

You need a dohc tach and a lower intake off a obd1 car.

Nikeboy355 · 08-02-2007, 02:11 PM

I just finished that exact swap...

You need to get a S13 DOHC wiring harness, distributor, ECU, gauge cluster, and power steering lines... It will cost you about $300...

Don't use the S14 electronics... It's a lot more work... The sensors on the S13 DOHC and S14 DOHC are the same so everything will plug in..

Slow Poke · 08-03-2007, 01:32 PM

You are WAY better off running the S13 harness with the S13 ECU and dizzy. It's much more of a PITA to use the S14 stuff. You will also need a DOHC cluster and throttle cable no matter what.

Shamless plug: I have the throttle cable and cluster if you need them!

na3j nitsuj · 08-04-2007, 04:57 PM

dont make it harder for urself man...

we are here to help and telling you how to do it the right way just like other people have done in the past.

**mrmephistopheles** · 08-04-2007, 08:27 PM

I didn't want to address it since you seem to have a hardon for using S14 electronics, but you're really going uphill backwards in the snow in this by doing so.
Using S13 stuff makes it so VERY simple. I understand that you've got a romtune for 370s, but that's really nothing. It's not worth the extra hassle just for a crap romtune.

08-02-2007, 12:03 AM	#1
DALAZ_68 not giving a fuck Join Date: Apr 2007 Location: Los angeles Age: 38 Posts: 15,077 Trader Rating: (104) Feedback Score: 104 reviews	going SOHC to s14 DOHC need advise on... so my engine blew a while ago and basically i NEED to make it live (my only means of transport)so i was able ot pick up a complete DOHC from a 95 240 with full engine harness and ECU im wondering what are gonna be my big obsticles... i read the e to de swap how to...but thats from a s13 to s13 engine...im going to s13 to s14 engine...though i knoe the KA's are same...im just wondering is there are any differences from the 95+ KA that i should factor in... the on big difference i can see is the positioning of the P/S pump, and the canister... any suggestions of how to switch it over...and will my cluster work, if not...will a 95 cluster fit in my s13 !?!?!? please guys i need help on this... money isnt musch of an issue...its just time....i need to get done b4 monday wen i start my new job

08-02-2007, 01:03 PM	#4
95Blue240sx Post Whore! Join Date: Jul 2002 Location: Girls pee-pee when they see me Age: 41 Posts: 4,084 Trader Rating: (0) Rides Gallery: 95Blue240sx Feedback Score: 0 reviews	WTH are you talking about? Your title says going from SOHC to DOHC. In this ^^^^ post you are saying s13 DOHC to s14 DOHC. Which is it?? __________________ Please leave me feedback

08-02-2007, 02:11 PM	#10
Nikeboy355 Zilvia Addict Join Date: Mar 2004 Location: Los Angeles, CA Age: 45 Posts: 734 Trader Rating: (0) Feedback Score: 0 reviews	I just finished that exact swap... You need to get a S13 DOHC wiring harness, distributor, ECU, gauge cluster, and power steering lines... It will cost you about $300... Don't use the S14 electronics... It's a lot more work... The sensors on the S13 DOHC and S14 DOHC are the same so everything will plug in.. __________________ http://respectvolkracing.blogspot.com/

08-02-2007, 12:08 AM	#2
undesiredshoe Zilvia Addict Join Date: Sep 2005 Location: Wisco Age: 36 Posts: 787 Trader Rating: (2) Feedback Score: 2 reviews	theres a how to thread on this already...search!

08-02-2007, 11:03 AM	#3
DALAZ_68 not giving a fuck Join Date: Apr 2007 Location: Los angeles Age: 38 Posts: 15,077 Trader Rating: (104) Feedback Score: 104 reviews	i did SEARCH! and i read his post but my engine has 350 injectors wihta an ecu thats been flashed for it... so im wondering is it possible to mate an s13 DOHC harness to a s14 DOHC ecu? so i can run the injectors no prob?!

08-02-2007, 10:34 PM	#6
DALAZ_68 not giving a fuck Join Date: Apr 2007 Location: Los angeles Age: 38 Posts: 15,077 Trader Rating: (104) Feedback Score: 104 reviews	my biggest question is qhy do i need the distributer from a s13 DOHC if im running the s14 wire harness?!??!?!?!?!?!?!? can anyone answer this for me

08-02-2007, 01:43 PM	#8
lazierhobo Zilvia Member Join Date: Sep 2006 Location: upstate NY Posts: 228 Trader Rating: (0) Feedback Score: 0 reviews	im pretty sure he is going from an SOHC to a S14 DOHC

08-02-2007, 02:03 PM	#9
89dc240 Zilvia Junkie Join Date: Nov 2006 Location: Just South of Philly Age: 41 Posts: 352 Trader Rating: (0) Feedback Score: 0 reviews	You need a dohc tach and a lower intake off a obd1 car.

08-03-2007, 01:32 PM	#11
Slow Poke Zilvia FREAK! Join Date: Mar 2007 Location: Maryland Posts: 1,199 Trader Rating: (2) Feedback Score: 2 reviews	You are WAY better off running the S13 harness with the S13 ECU and dizzy. It's much more of a PITA to use the S14 stuff. You will also need a DOHC cluster and throttle cable no matter what. Shamless plug: I have the throttle cable and cluster if you need them!

08-04-2007, 04:57 PM	#12
na3j nitsuj Zilvia Member Join Date: Jul 2006 Location: Bay Area Posts: 194 Trader Rating: (0) Feedback Score: 0 reviews	dont make it harder for urself man... we are here to help and telling you how to do it the right way just like other people have done in the past.