2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

advice on swapping s4 engine to s5!

Thread Tools
 
Search this Thread
 
Old 11-23-05, 07:32 PM
  #1  
Full Member

Thread Starter
 
KV001's Avatar
 
Join Date: Mar 2005
Location: So. Cal
Posts: 189
Likes: 0
Received 0 Likes on 0 Posts
advice on swapping s4 engine to s5!

hey! well here's the thing. i basically have everything from an s4 TII; the engine, tranny, ecu, driveshaft, clutch, everything but a shell. and everything is in perfect condition. and i'm thinking about getting a s5 shell and swapping it all over. i found the write up by rotary resurrection on swapping an s4 engine to s5 (http://www.rotaryresurrection.com/ro...ries4swap.html) which was helpful but it still wasnt too clear to me.

well here's my question. since i have the ECU and everything, wiring shouldnt be a problem if i swap that too right? would it be easier just to swap everything over or would it be a better idea to keep some s5 parts in like in the write up. and also any imput, ideas, or advice for this project would be greatly appreciated. thanks.

-Kevin

oh yea...the s5 shell is N/A if that makes any difference.
Old 11-26-05, 12:08 PM
  #2  
Full Member

Thread Starter
 
KV001's Avatar
 
Join Date: Mar 2005
Location: So. Cal
Posts: 189
Likes: 0
Received 0 Likes on 0 Posts
so if i swap everything over, it would be a pretty smooth swap, no major problem?
or should i keep some of the s5 superior parts?
anything else i should look or watch out for when doing the swap?
Old 11-26-05, 03:26 PM
  #3  
Rotary Enthusiast

 
inflatablepets's Avatar
 
Join Date: Mar 2004
Location: St Louis
Posts: 1,473
Likes: 0
Received 0 Likes on 0 Posts
I can help if you provide more info. What is the S5 car? N/A ot TII?
Old 11-26-05, 11:13 PM
  #4  
Full Member

Thread Starter
 
KV001's Avatar
 
Join Date: Mar 2005
Location: So. Cal
Posts: 189
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by inflatablepets
I can help if you provide more info. What is the S5 car? N/A ot TII?
it's an N/A s5. (it was in the first post)

Originally Posted by westler91
*laughs *** off*

*does not know what the question is asking*
basically, i have all the components of a s4 TII in perfect, working condition but the shell is totalled. so i'm getting an s5 n/a shell to swap everything over. so i'm just asking for any advice for the swap.

planning on doing a complete swap (motor, tranny, driveshaft, ecu, etc). would this be the best idea?
Old 11-26-05, 11:25 PM
  #5  
Lives on the Forum

iTrader: (8)
 
RotaryResurrection's Avatar
 
Join Date: Oct 2003
Location: Morristown, TN (east of Knoxville)
Posts: 11,576
Received 25 Likes on 18 Posts
Swap every wire and every part connected to every wire from the s4 into the s5, and it will be a perfect swap.

OR you can hack this, cut that, and splice this. These cars have enough problems, mostly electrical, to add uncertainty and rigging on top of that. These are the sort of projects that wind up being sold for parts despite the owner's sincere detmination at the beginning of it. Because once it is all said and done, they are looking at a car that doesnt run right and NOBODY can help them figure it out at that point since it is such a hybrid/reengineered setup.
Old 11-27-05, 01:23 AM
  #6  
IIMMM BBAAACCKKK!!

iTrader: (8)
 
vipers's Avatar
 
Join Date: Aug 2004
Location: redlands, cali
Posts: 2,904
Received 1 Like on 1 Post
i did the exact thing you did...... s5 na converted to s4 t2.......pm me if you have any questions......


note...be prepared for ALOT of work
Old 11-27-05, 09:15 AM
  #7  
Rotary Enthusiast

 
inflatablepets's Avatar
 
Join Date: Mar 2004
Location: St Louis
Posts: 1,473
Likes: 0
Received 0 Likes on 0 Posts
I think you answered your own question then. You need everything, wiring and all. Good luck.
Old 11-27-05, 09:27 AM
  #8  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes on 91 Posts
If I was doing this, I would grab the emissions (EFI) harness from the S4 as well as the connector from the body harness (the one that plugs into the ECU). I would then strip the S4 harness to it's minimum, bulding the CAS and ignition harness off of the salvaged body connector. The idea is that when you're all done, there are only two connections that have to be made to the car: 12V and ground.

I've done this with several TII swaps into 1st gens and it works very well. All you need to do is follow the wiring diagram in the Haynes manual.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
fastrx7man
3rd Generation Specific (1993-2002)
33
09-02-15 09:42 PM
maikelc
3rd Generation Specific (1993-2002)
8
08-24-15 11:04 AM
elfking
3rd Generation Specific (1993-2002)
3
08-19-15 09:48 PM
Professorpeanutrx7
New Member RX-7 Technical
5
08-15-15 01:38 PM



Quick Reply: advice on swapping s4 engine to s5!



All times are GMT -5. The time now is 10:05 AM.