Restorations, Rebuilds & Projects. Restoring her to Concourse? Just getting her running again? Or got a mad project? This is your room.

Mk4 escort XR3I Efi, ST170 Conversion , Help!

Thread Tools
 
Search this Thread
 
Old Jan 9, 2020 | 04:49 PM
  #1  
Skinnymcdee's Avatar
Skinnymcdee
Thread Starter
Virgin
 
Joined: Jan 2020
Posts: 4
Likes: 0
From: Hamilton
Default Mk4 escort XR3I Efi, ST170 Conversion , Help!

Hi, I have a mk4 escort xr3i convertible, 1990 Efi. Looking to find out what is required to fit an st170 duratec engine. Can I use existing gearbox, flywheel, mounts etc fuel injection, tank, pump etc cheeRS
Reply
Old Jan 9, 2020 | 06:29 PM
  #2  
big_wasa's Avatar
big_wasa
I've found that life I needed.. It's HERE!!
 
Joined: Jan 2012
Posts: 1,055
Likes: 126
From: Linc's
Default

What are you like with wiring ? The standard st170 injection is perfectly adaptable to run in the 3i but you will need all the sensors to go with it including the inlet manifold, needed for the Imrc.

I am a big fan of the stock ecu because it’s cheap and I like a challenge but the St will give a lot more with stand alone management and vvt control, throttle bodies and good exhaust.
I would say if your not good with wiring don’t ruin your 3i.

The difference is probably 30hp and that could cost 2k for bolt on parts and the standard St with 160 ish would still be a huge giggle over a cvh.

Last edited by big_wasa; Jan 9, 2020 at 06:30 PM.
Reply
Old Jan 9, 2020 | 06:48 PM
  #3  
Skinnymcdee's Avatar
Skinnymcdee
Thread Starter
Virgin
 
Joined: Jan 2020
Posts: 4
Likes: 0
From: Hamilton
Default

I am fine with wiring, but to be honest I'm looking for as simple a conversion as possible, and if I can use the existing wiring and ecu. Can the EFI manifold be bolted on to the st170? Do you need to upgrade the injectors??
Reply
Old Jan 9, 2020 | 06:50 PM
  #4  
Skinnymcdee's Avatar
Skinnymcdee
Thread Starter
Virgin
 
Joined: Jan 2020
Posts: 4
Likes: 0
From: Hamilton
Default

And I do agree, even running the st170 standard would still be a giggle 🤭
Reply
Old Jan 9, 2020 | 08:59 PM
  #5  
big_wasa's Avatar
big_wasa
I've found that life I needed.. It's HERE!!
 
Joined: Jan 2012
Posts: 1,055
Likes: 126
From: Linc's
Default

You have the vvt to operate for a start.

The cvh management isn’t going to cut it.
Reply
Old Apr 2, 2020 | 10:37 PM
  #6  
Crichton85's Avatar
Crichton85
Virgin
 
Joined: Feb 2020
Posts: 8
Likes: 1
From: Cornwall
Default St engine wiring

Originally Posted by big_wasa
What are you like with wiring ? The standard st170 injection is perfectly adaptable to run in the 3i but you will need all the sensors to go with it including the inlet manifold, needed for the Imrc.

I am a big fan of the stock ecu because it’s cheap and I like a challenge but the St will give a lot more with stand alone management and vvt control, throttle bodies and good exhaust.
I would say if your not good with wiring don’t ruin your 3i.

The difference is probably 30hp and that could cost 2k for bolt on parts and the standard St with 160 ish would still be a huge giggle over a cvh.
hi are you any good with wiring on the st engines plz need some help thanks
Reply
Old Apr 3, 2020 | 05:15 PM
  #7  
Skinnymcdee's Avatar
Skinnymcdee
Thread Starter
Virgin
 
Joined: Jan 2020
Posts: 4
Likes: 0
From: Hamilton
Default

big_wasa wot info u got on doing the ST conversion? I've purchased an engine bay harness and fuse box, interior harness and ECU and transponder and chip cheeRS
Reply
Old Apr 4, 2020 | 04:31 PM
  #8  
big_wasa's Avatar
big_wasa
I've found that life I needed.. It's HERE!!
 
Joined: Jan 2012
Posts: 1,055
Likes: 126
From: Linc's
Default

My party trick is running the Ford engines out side of a ford. So I work out the ecu wiring as if it was a stand alone ecu. This can be used to run it anyware. I am into kitcars others have used the info to put them into hot rods, boats and all sorts.

Trouble is, guys on this forum want to know how to integrate this back into a ford. There are multi ways to do this depending on age. As it’s somthing I am not into I don’t have the info to hand. I would like to help more but I just don’t have any time and I must get asked a few times a week.

I post up all I know, the st170 thread http://www.locostbuilders.co.uk/forum/47/viewthread.php?tid=190440

st170 ecu


FRs ecu.


St220 ecu.


Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
batrst
Technical help Q & A
0
Jul 12, 2016 10:05 PM
mondeomark
Escort Range
1
Jan 11, 2015 07:32 AM
Freeked
Ford Focus ST
15
Dec 9, 2010 02:01 AM




All times are GMT. The time now is 06:36 AM.