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

s4 to s5

Thread Tools
 
Search this Thread
 
Old 12-14-06, 11:22 AM
  #1  
Senior Member

Thread Starter
iTrader: (1)
 
STLDriftFC's Avatar
 
Join Date: Jun 2006
Location: St.Louis
Posts: 549
Likes: 0
Received 0 Likes on 0 Posts
s4 to s5

Yes I know it was a dumb thing to do but I got a s4 motor for cheap after the compression went low on my s5. Ok well the new motor is in and i used the s5 harness with the s4 motor. well the car will now start but it dies shortly after. the check engine light is throwing up a tps code. has anybody else done this swap before and if so what did you do when it came to the different throttle bodies?
Old 12-14-06, 11:47 AM
  #2  
THE 7 CANT LOSE!!!

 
SukMy7's Avatar
 
Join Date: Nov 2006
Location: Atlanta, GA.
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
you need to use the S5 lower and upper intakes as well as the S5 throttle body. Also you need to use the S5 timing cover but use the S4 pullies. I used an S5 block in my girls S4 and had the same issues, the pullies threw me off. hope this helps
Jerm
Old 12-14-06, 11:47 AM
  #3  
not a drifter

iTrader: (133)
 
87 t-66's Avatar
 
Join Date: Jun 2004
Location: Columbus, Ohio
Posts: 9,337
Received 5 Likes on 5 Posts
http://rotaryresurrection.com/2ndgen...o_s5_swap.html
Old 12-14-06, 12:49 PM
  #4  
Respecognize!

 
Whizbang's Avatar
 
Join Date: Sep 2004
Location: Anchor Bay, CA
Posts: 4,106
Received 71 Likes on 42 Posts
yeah i would have replaced the short block (even use the s5 front cover and mop) and just deal with the lower compression and heavier rotating assembly, while maintaining an easy swap.

short version--> you over complicated this project.
Old 12-14-06, 08:50 PM
  #5  
Senior Member

Thread Starter
iTrader: (1)
 
STLDriftFC's Avatar
 
Join Date: Jun 2006
Location: St.Louis
Posts: 549
Likes: 0
Received 0 Likes on 0 Posts
k car runs thanks guys




All times are GMT -5. The time now is 09:09 AM.