Aftermarket ECU for ST170 - PassionFord - Ford Focus, Escort & RS Forum Discussion

Technical help Q & A Got A technical problem with you car? Keep it in here where the techies hang out and we will try to solve it for you!!

Aftermarket ECU for ST170

Old 11-02-2011, 03:35 PM
  #1  
Michael.Lomax
Virgin
Thread Starter
 
Michael.Lomax's Avatar
 
Join Date: Nov 2010
Location: Egham
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default Aftermarket ECU for ST170

Hi All,

I'm getting very lost and very confused (not unlike me)

I need some help before purchasing an ECU for an ST170 engine.

My project is to put the ST170 engine into a Mk5 Cortina. I have all the mechanical parts already but struggling with finding a suitable ECU.

I'm looking at a Complete Microsquirt system for Ford Zetec/Duratec engine mainly for the price and I think it should do what I need.

My question is, will the Megasquirt be ok running the Injectors, VVT and ignition?

Thanks

Michael

Last edited by Michael.Lomax; 11-02-2011 at 03:36 PM. Reason: Edit font
Michael.Lomax is offline  
Old 11-02-2011, 04:40 PM
  #2  
tabetha
BANNED
BANNED
 
Join Date: Jul 2006
Location: uk
Posts: 24,596
Thanks: 0
Thanked 1 Time in 1 Post
Default

Ask who ever is going to map it for you would be my advice.
I know there are loads of ST170 on emerald K3 and K6, as this runs all the different VVT arrangements perfectly, the VVT is deleted by some, but is well worth keeping as it can give some serious economy gains with no power loss.
tabetha
tabetha is offline  
Old 12-02-2011, 01:24 PM
  #3  
Churtz
Too many posts.. I need a life!!
 
Churtz's Avatar
 
Join Date: Jan 2010
Location: Southend, Essex
Posts: 654
Thanks: 0
Thanked 7 Times in 7 Posts
Default

i have seen an st170 engine running on megasquirt making mega power. the vvt control on ms is on/off type, rather than progresive pwm signal. meaning its all down to the mapper to make it smooth when it kicks in, or it will be a surge of aprox 30bhp the moment the vvt switches on.

in simple words....ms will do fine.

matt
Churtz is offline  
Old 12-02-2011, 01:30 PM
  #4  
Joshy
Dreamer
 
Joshy's Avatar
 
Join Date: Feb 2010
Location: Dorking, Surrey
Posts: 1,613
Thanks: 0
Thanked 0 Times in 0 Posts
Default

MS is ok if your looking to experiment with mapping it yourself

if your looking to get it mapped somewhere else then you should ask them because from what i've seen on here, a lot of tuner prefer not to map megasquirt
Joshy is offline  
Old 12-02-2011, 05:06 PM
  #5  
tabetha
BANNED
BANNED
 
Join Date: Jul 2006
Location: uk
Posts: 24,596
Thanks: 0
Thanked 1 Time in 1 Post
Default

In "simple" terms why suffer with lack of proper control of the VVT and loss of power/mpg etc when it's not in operation, like on a ms if you don't have to by using a different ecu that can control it 100% perfectly, giving the best of both worlds, like it was intended to do in the first place.
tabetha
tabetha is offline  
Old 12-02-2011, 06:44 PM
  #6  
Churtz
Too many posts.. I need a life!!
 
Churtz's Avatar
 
Join Date: Jan 2010
Location: Southend, Essex
Posts: 654
Thanks: 0
Thanked 7 Times in 7 Posts
Default

Originally Posted by tabetha View Post
In "simple" terms why suffer with lack of proper control of the VVT and loss of power/mpg etc

in my case ... money! find the cheapest aftermarket ecu that will have PWM output that varies on TPS and RPM, and its ALOT more expensive than an MS.

Saying that, i totally agree. If money is no issue, then get something that will do the job correctly. .... . all of thisis kinda hyperthetical from me as ive got a normal 2.0 blacktop with no vvt now.

Matt
Churtz is offline  
Old 13-02-2011, 09:53 PM
  #7  
Michael.Lomax
Virgin
Thread Starter
 
Michael.Lomax's Avatar
 
Join Date: Nov 2010
Location: Egham
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Hey all. Thanks for the feedback so far. Giving me alot to think about.
Joshy I think in answer to your question, I'm going to attempt mapping myself (I'm sure another post will follow when I get to that point)

Do you guys know if anyone runs an ST170 engine (not on carbs) on here?

Cheers

M

Last edited by Michael.Lomax; 13-02-2011 at 09:54 PM. Reason: name change
Michael.Lomax is offline  
Old 14-02-2011, 08:46 PM
  #8  
Joshy
Dreamer
 
Joshy's Avatar
 
Join Date: Feb 2010
Location: Dorking, Surrey
Posts: 1,613
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Originally Posted by tabetha View Post
In "simple" terms why suffer with lack of proper control of the VVT and loss of power/mpg etc when it's not in operation, like on a ms if you don't have to by using a different ecu that can control it 100% perfectly, giving the best of both worlds, like it was intended to do in the first place.
tabetha
the VVT on the ST170 is an on/off setup anyway so another ECU wouldent be able to control it any better than MS
Joshy is offline  
Old 14-02-2011, 08:51 PM
  #9  
chaffe
Turbocharging Technician
 
chaffe's Avatar
 
Join Date: Jul 2010
Location: Top secret. Mission:Imposible.
Posts: 3,557
Thanks: 0
Thanked 0 Times in 0 Posts
Default

another option to control the vvt is a PWM controller off ebay for about 12 quid, these can also be used for idle control valves, or anything with PWM. It comes with a pot to set it, you could use a switch on the throttle or an output on the ecu to switch it on
chaffe is offline  
Old 13-03-2011, 10:55 PM
  #10  
changster
Virgin
 
changster's Avatar
 
Join Date: Dec 2010
Location: west norfolk
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Guys, there is a blokeo nthe megasquirt forum that has build a gadget that allows him to use VVT on his mazda MX5 and hooks into the MS ecu for adjustable VVT tuning...
changster is offline  
Old 17-03-2011, 08:32 PM
  #11  
Fiesta-Kompressor
15000
 
Fiesta-Kompressor's Avatar
 
Join Date: Jun 2010
Location: Germany
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default

The DTA S60 had a cam-pwm-signal for the vvt inlet and runs good an the st170.
Fiesta-Kompressor is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
arkeye
Ford Focus ST
1
20-02-2016 02:22 PM
tankybaby66
Cars for Sale
49
06-02-2016 03:24 PM
griffo69
Cars & Parts Wanted.
1
04-10-2015 12:58 PM
mark94
Ford Mondeo Including ST
3
02-10-2015 04:00 PM
Marv888
Restorations, Rebuilds & Projects.
1
26-09-2015 04:44 PM


Thread Tools
Search this Thread
Quick Reply: Aftermarket ECU for ST170


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 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.