Engine Swaps All about engine changeovers,swaps and related issues.

S4 13B in my FB, lots of Q's

Old 06-05-2009, 02:50 PM
  #1  
Junior Member
Thread Starter
 
Join Date: May 2009
Location: SF, CA
Posts: 9
Thumbs up

Hello guys,



I know that this has been covered before but almost all links regarding this swap are dead and pics are gone...I come in peace, please dont blow me up with flames



My Chassis: 85 GSL w/ dead 12A

[attachment=45763SC02460.JPG]

Engine is 88 13B, but is missing some parts, so far EGR, CAS, Starter, elbow that meets the TB to intake piping, leading coil pack? more?,

[attachment=45764SC02465.JPG]

[attachment=45765SC02482.JPG]





I've bought both hayes manuals for FB and FC, waiting on FC. I've downloaded both FSM. Ive searched and learned:



Use the 12A front cover to keep engine mount where they are

I'm using the FB transmission/ clutch

I'm going to modify the crossmember rather than buy the RB or Mazdatrix one

12a carb fuel pump is not strong enough (i bought a fuel pump assembly from FC)



Questions:

I understand how to mount the engine but the electrical and vacumn stuff/fuel stuff is what is getting me right now.



I have the engine harness (2 yellow connectors) small and med size on ecu, what about the longer plug, do I use my FB wiring harness there...is it plug and play or do I need to source the plug and soder in my existing wires from my harness?

[attachment=45766SC02471.JPG]

[attachment=45767SC02474.JPG]



Does the FC ecu mount in the same place as the FB?



Is the intank pump the FB has good enough? I bought the external pump from an 88 rx7...other than the fuel pump and assembly is there anything else I need to do... Relays, lines, ect?



Do all my FB accessories mount on the 13B since I'm using my front cover? I have the 13B air pump, alt, and PS thingy



I'll start with this...any links to writeups or info I greatly appreciated...
irishluder is offline  
Old 06-07-2009, 05:29 PM
  #2  
Junior Member
Thread Starter
 
Join Date: May 2009
Location: SF, CA
Posts: 9
Default

Originally Posted by irishluder' post='922483' date='Jun 5 2009, 12:50 PM
Hello guys,



I know that this has been covered before but almost all links regarding this swap are dead and pics are gone...I come in peace, please dont blow me up with flames



My Chassis: 85 GSL w/ dead 12A

[attachment=45763SC02460.JPG]

Engine is 88 13B, but is missing some parts, so far EGR, CAS, Starter, elbow that meets the TB to intake piping, leading coil pack? more?,

[attachment=45764SC02465.JPG]

[attachment=45765SC02482.JPG]





I've bought both hayes manuals for FB and FC, waiting on FC. I've downloaded both FSM. Ive searched and learned:



Use the 12A front cover to keep engine mount where they are

I'm using the FB transmission/ clutch

I'm going to modify the crossmember rather than buy the RB or Mazdatrix one

12a carb fuel pump is not strong enough (i bought a fuel pump assembly from FC)



Questions:

I understand how to mount the engine but the electrical and vacumn stuff/fuel stuff is what is getting me right now.



I have the engine harness (2 yellow connectors) small and med size on ecu, what about the longer plug, do I use my FB wiring harness there...is it plug and play or do I need to source the plug and soder in my existing wires from my harness?

[attachment=45766SC02471.JPG]

[attachment=45767SC02474.JPG]



Does the FC ecu mount in the same place as the FB?



Is the intank pump the FB has good enough? I bought the external pump from an 88 rx7...other than the fuel pump and assembly is there anything else I need to do... Relays, lines, ect?



Do all my FB accessories mount on the 13B since I'm using my front cover? I have the 13B air pump, alt, and PS thingy



I'll start with this...any links to writeups or info I greatly appreciated...


Hey guys, I know that alot of people have done this swap but this is my first time with this one. Can you give me some help?



I plan on doing a very thourough writeup during my swap to help people with future swaps
irishluder is offline  
Old 06-11-2009, 09:10 AM
  #3  
Senior Member
 
Join Date: May 2002
Location: California
Posts: 22,466
Default

as youve noticed, 2 of the three ecu plugs go right from the motor to the ecu, so it plugs right in



the FC ecu should go where the 12a emissions control unit went, under the passenger carpet.



the other plug on the ecu needs to be put in the car, as the 12a doesnt even have something equivalent, if you are looking at diagrams, you may only need about 5-6 wires, depending on how crazy your smog is



for the fuel pump, the FB is external, and there are many options, simplest is just to run the factory GSL-SE pump assembly
j9fd3s is offline  
Old 06-11-2009, 02:34 PM
  #4  
Senior Member
 
Join Date: Oct 2007
Location: IDAHO
Posts: 115
Default

that 3rd larger plug will control the cas and coils, you will need it unless you are using a dizzy,



my ? is the n327 a turbo ecu or s5n/a, cause it sure looks like a s4n/a
RX200013B is offline  
Old 06-12-2009, 04:06 AM
  #5  
Member
 
Join Date: Apr 2003
Location: gloucester
Posts: 91
Default

i would get a walbro external pump. the stock se pumps are kinda junk and a new one is expensive. im gonna be doing prety much the same thing eventually to my se. all the smog crap is not nessasary unless you have an emissions test(i dont) for the vaccume lines the maine ones are for the fpr and the omp fitting spider. there are other lines for the idele crap but its not that nessasary if you arnt trying to use the AC.
boosted12a is offline  
Old 06-15-2009, 06:10 PM
  #6  
Junior Member
Thread Starter
 
Join Date: May 2009
Location: SF, CA
Posts: 9
Default

thanks for the reply... the guy is bought the motor off of was doing a turbo swap. maybe he gave me the wrong ecu?



Originally Posted by j9fd3s' post='922846' date='Jun 11 2009, 07:10 AM
as youve noticed, 2 of the three ecu plugs go right from the motor to the ecu, so it plugs right in



the FC ecu should go where the 12a emissions control unit went, under the passenger carpet.



the other plug on the ecu needs to be put in the car, as the 12a doesnt even have something equivalent, if you are looking at diagrams, you may only need about 5-6 wires, depending on how crazy your smog is



for the fuel pump, the FB is external, and there are many options, simplest is just to run the factory GSL-SE pump assembly
irishluder is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rotorocious
RX-7 & RX-8 Parts For Sale & Wanted
3
11-26-2007 08:06 PM
roadkill669
RX-7 & RX-8 Parts For Sale & Wanted
102
06-16-2005 11:59 PM
BuffMUSTANG
RX-7 & RX-8 Parts For Sale & Wanted
2
01-13-2005 07:22 AM
FrestyleFC3S
Insert BS here
17
02-02-2004 03:17 PM
large_x7
3rd Generation Specific
5
10-11-2003 04:57 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: S4 13B in my FB, lots of Q's


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.