Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > Electrics
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #21  
Old 12th September 2012, 05:28 PM
K4KEV's Avatar
K4KEV K4KEV is offline
Senior Member
 
Join Date: Feb 2010
Location: WINGATE CO DURHAM
Posts: 1,511
Default

better still use the oem ecu ....they spent millions developing systems to work for 100's of thousands of miles, I kinda get the inkling they might just know what they are doing....oh and FREE with a donor
Reply With Quote
  #22  
Old 12th September 2012, 06:35 PM
robo robo is offline
Senior Member
 
Join Date: Jun 2011
Location: scabs
Posts: 1,722
Default

Quote:
Originally Posted by AshG View Post
megasquirt is one of those things where if you understand it fully its very easy. if you dont understand it, you dont bother and get an omex etc. the issue is with all the people in-between. some get most of it an get by, some dont know how it works but are capable of following the manuals with a bit of outside help then there are people that just go for it because its cheep with no intention of learning anything.


here is the deal.... MEGASQUIRT IS AN EDUCATIONAL EXERCISE (its clearly stated on their website) the ecu at the end of the process is the result of what you have learnt, if you dont bother to learn or lack the intellectual capacity the output at the end wont work.

clearly rob wants to learn and for people like him there is huge network of people over on the ms forums. but keep in mind if you come across as someone that is not willing to learn or too lazy to read what is already in a manual there wont be any help.

and as for value an un assembled ms3 kit with the ms3 expansion board works out at £300. but you have to learn about it and build it!

an omex 710 which doesn't do quite as much but has all the main features like fully sequential, cop support, turbo control features etc will cost you £1000.

personally i would say if you want an off the shelf built ecu the omex is the better option but you will pay a bit more for it
So what your saying is start at the at the beginning with a box of bits, read all the tutorials and by the time you have built it you would understand the whole thing inside out. Now that makes sense to me but to buy a second hand unit that a man in a shed practised his soldering and electronics education on doesn`t. Too many of these things out there up for grabs cheap that are an unknown quantity and potential mega ballache minus the squirt.

Bob
__________________
When The Results Disagree With The Theory: Believe The Results And Invent A New Theory
If I had two brains I,d still be a halfwit

The cave http://s1116.photobucket.com/user/my...deshow/mancave

The build http://www.haynes.co.uk/forums/showthread.php?t=12669
Reply With Quote
  #23  
Old 12th September 2012, 09:24 PM
baz-r baz-r is offline
Senior Member
 
Join Date: Nov 2009
Posts: 1,464
Default

its a bit like building a car from nothing realy you know the thing inside out when its done but if you think its just the case of welding a few bits together anyold how you will get somthing that may not work right at the end.

i will point out one big thing! as you builld your ms pcb up you tailor its circuits to what your running and with the parts your using in your system.
that is why you have to be very careful what you buy prebuilt s/h or new
Reply With Quote
  #24  
Old 13th September 2012, 01:42 PM
Big Vern Big Vern is offline
Senior Member
 
Join Date: Jul 2008
Location: Milton Keynes
Posts: 320
Default

It really depends on what you want. If like me you were looking for an DIY tuneable engine management system that you can just plug in, get running and go drive the car, then Megasquirt is not the way to go. People see how cheap it appears to be and think they're getting an omex or emerald and its only cheap 'cos you have to build it. In fact its not as cheap to build as through solder components are now quite expensive relatively speaking.
Megasquirt is cheap because its 'prototype', 'educational', lacks the refinement of othe systems especially with regard to robustness and lacks the proving out that normally associates 'production' type systems.
Not only do you have to 'learn how to configure and build the megasquirt but you have to learn how to use it as well and how to 'map' your engine at t end of it.
In other words if the end result is to wind up with an engine management you can fit to a car and map then its an interesting learning experience, if you just want something to plug in and start mapping straight away then get something else, megasquirt I not for you.
Reply With Quote
  #25  
Old 13th September 2012, 01:46 PM
Big Vern Big Vern is offline
Senior Member
 
Join Date: Jul 2008
Location: Milton Keynes
Posts: 320
Default

Quote:
Originally Posted by baz-r View Post
its a bit like building a car from nothing realy you know the thing inside out when its done but if you think its just the case of welding a few bits together anyold how you will get somthing that may not work right at the end.

i will point out one big thing! as you builld your ms pcb up you tailor its circuits to what your running and with the parts your using in your system.
that is why you have to be very careful what you buy prebuilt s/h or new
I found it a real pita trying to get the hardware I had to work with megasuirt. Its easier to use the hardware and sensors Bowling and Grippo recomend. Trying to configure the system was the main headache for me, all I really wanted was an engine magangement I could plug in and get mapping - I abandoned megasquirt and went with omex as I didn't have the time to make it work. Also at that time few rolling road specialists had knowledge of megasquirt and didn't really want to get involved with the mapping.
Reply With Quote
  #26  
Old 13th September 2012, 10:28 PM
alga's Avatar
alga alga is offline
Senior Member
 
Join Date: Feb 2009
Location: Vilnius, Lithuania
Posts: 1,249
Default

Heh, well, considering everything said on this thread, I will get my car on the road with the stock ECU, and I'll bring an MS2 kit the next time I go to the States. I think I'll try to make an adapter out of a plug from another EEC-IV ECU so I can make the transition as painless as possible, and have an easy way to revert if it does not work for some reason.

I am a geek and I enjoy soldering and electronics.
__________________
Albert
Haynes Roadster FAQ | Haynes Builder Locations
Gallery, build thread in Lithuanian / via Google Translate.
Reply With Quote
  #27  
Old 15th September 2012, 10:01 PM
baz-r baz-r is offline
Senior Member
 
Join Date: Nov 2009
Posts: 1,464
Default

well only today did i set up my own built ms2 to my own rebuilt zetec thats bolted into my own built chassis and ran up the engine and while it was idleing away happly up to temp could say i did all of that i could myself
very satisfying to know you did everything possible to do what you could within your abilities to build a car

the effort is all worth it come the end
Reply With Quote
  #28  
Old 29th September 2012, 11:44 PM
monsterob monsterob is offline
Senior Member
 
Join Date: Jul 2010
Location: crewe
Posts: 400
Default

Jeeze didnt know id started a bit of a debate but an update for you all.

Megasquirt went back to phil at extra efi who built it for me for the second time and for the second time tested fine on the stim however would not work On the bench with my loom and sensor ( sent it all back ) good job i did !! The amplifier circuit has been replaced and the issue has now been overcome .

Phil is bamboozled but totally great support at all times just hope it works when it gets back this time.

It is what it is !

As for the oem ecu i have used honda looms and ecus in projects past but ... The vauxhall x20xev from the omega wants to see doors and windows for the immobiliser and is notoriously poor in the omega as standard !! Too many sensors. And the wiring diagrams for the vaux are what my puppy keeps laying in my garden ! Dog 5h!¥
__________________
theres a box ! im not allowed in it ! i have to think outside !
Reply With Quote
  #29  
Old 30th September 2012, 01:18 AM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Hi Rob
Been watching your posts and feeling your pain. must have been sooooo frustrating.
Hope you soon get up and running
Reply With Quote
  #30  
Old 30th September 2012, 11:55 AM
monsterob monsterob is offline
Senior Member
 
Join Date: Jul 2010
Location: crewe
Posts: 400
Default

to be honest it has been but at least it wasnt me doing something wrong
it should be sorted now so hopefully a startup video will be coming soon !

i havent had time for the project of late work and family commitments getting tattooed on my days off and the frustrations of the lecci gremlins have kept me away hopefully i can crack on again soon tattoo is nearly finished so no excuse now !
__________________
theres a box ! im not allowed in it ! i have to think outside !
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 01:48 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.