omex or megasquirt???
 

i'm finally investing in a bit of engine management. everyone seems to use omex and i have seen some very good results with it but being a cheap git i was looking into megasquirt. anyone using megasquirt on an s12? i will be removing the afm and dizzy and switching to map sensor. opinions please....;)

I work with Omex ECUs every day so that would be the way I'd go. Megasquirt CAN be a very powerful tool, but the technical support for them is very little. They are a DIY project that's only suitable for someone with excellent electronics skills, and the software isn't that good. Omex have people on the end off the phone to help, and Richard (omex boss) has owned an s12 or 2 in his time :)

Isn't there a guy running Megasquirt on an S12 powered Caterfield type thingy?

EDIT - Have nose at these Dunc

http://www.nissansilvia.co.uk/vbb/showthread.php?t=2169

http://www.nissansilvia.co.uk/vbb/showthread.php?t=2194

the vast majority of the Scimitar guys (S12 ET engine) use Emerald M3DK :D

would agree with Danny, Megasquirt is powerful if you are DIY mapping savvy (im not!). the Omex product range is popular although my personal experience with them wasnt that good.

I run my s12 on Megasquirt with ca18et and there is no problem with it whatsoever.
You dont even have to be an electronic specialist to install it.
The MS2357 works with s12 sensors and does not reqiure any hardware changes to the MS or engine equipment except ading an air temperature sensor.

thanks for the info lads.:cool: i was looking at emerald ecu's after getting a catalogue with retro cars or something. rewiring the engine doesn't bother me cos i'll be changing a few things anyway. lookin for value for money and ease of use. i would like to map it myself but it's something i have never done. having said that i never did anything with turbo cars until i got my s12 and now theres not much standard left on the car.
nobody is going to show me how to map a car as they will be doing themselves out of a job so theres only one way i'll learn anything.
how does the bottom pulley work out with the position sensor? is there one for a det available?
hows the black legend coming on jackiefan?

an omex 600 is cheaper than an emerald ;)

crank sensor will need a toothed wheel adding to the pulley, can be supplied with the ECU. Fitting can be done yourself, but I really would recomend mapping be done by someone experienced. Ignition timing just can't be mapped properly on the road, you need the use of a dyno to optomise each load point.

nice one. i may be able to use a local rolling road belong to a chap that races a national hot rod. hes shit hot with carbs but not so sure with injection.
i want to learn everything thats my biggest fault.
there is another company in wicklow that fit and map omex. i've seen there rb26 engined s13 drift car that runs good. seems very reliable. do omex sell direct?

yes absolutely

http://www.omextechnology.co.uk/

Contact us by email on: [email protected]

Contact us by telephone: +44 (0) 1242 260656

Contact us by fax: +44 (0) 1242 578069

you working for them Danny?

Omex is somebody elses product originally if im correct? aussie ecu (autronic?), bought the rights etc?
have looked long and hard at moving away from Emerald, but given the options, only the expensive Motecs do appreciably more, but are mega bucks :eek:

each to their own, but i have lots of maps for the Emerald (in various s12 engine spec/turbo/states of tune) that i can let people have free if they go emerald.

VEMS looked good, essentially a megasquirt derivative but commercially developed, but i notice Phatbob has dropped hios involvement with VEMS now so the development in the UK may slow.

omex is the same as the gems softwere.

ah, must be GEMS and not Autronic then, knew id been told about at at some point lol

Emerald gets rave reviews from everyone I've spoken to about it, admittedly I know know anything about mapping ecu's.

Going to be running Omex in mine when it comes to it but that's just because I got a good deal on one :cool:

The Crank angle sensor wheel thingy from Omex is just a disk with a small 10-15mm hole in the middle of it, I guess the Idea is you then get a machine shop to match it to the OD of the crank pulley then tack it on. You then rig up the actual sensor (?halls device?) off the front of the block using mecano or something. Its a one size fits all solution although I'm sure there are some clever sods out there that have found other ways around it.

The MKI is coming on, all be it rather slowly (I just don't get the time to work on it). Got mostly S13 parts for the front end sorted and painted, all the front bushes are done. Just need to get the manual rack back from my old man so I can get it rolling again then it's off to get a cage fabbed up (when I can find someone to do it for my for sensible money). I'll update the project thread as soon as I've got it to a point I'm happy with.

this is what i did...

http://i13.photobucket.com/albums/a2...1/03120093.jpg

made up a spacer ring and machined an omex trigger wheel blank to suit

http://i13.photobucket.com/albums/a2...1/06200017.jpg
http://i13.photobucket.com/albums/a2...1/07220001.jpg

pic shows the original crank angle sensor bracket on the cam belt cover, but although it felt stiff, it vibrated and caused a missfire, so a beefy bracket was bolted to where the water pump used to be (my car runs an electric one). just ensure the crank sensor bracket is built like a brick sh*t house or they can cause issues :)

http://i13.photobucket.com/albums/a2...1/08140010.jpg

sort of, not exactly

No not at all, Just the software is written by GEMS (to omex specification) who also do it for a lot of ECU manufacturers

You wont find a lot of places who will do the mapping on VEMS, I know more and more who've tried and wont touch it now. Dont know really, never done one.

how much is the 600 and 710, ecus only?

will have a good look again at Autosports to see what benefits they have, hopefully they will have someone techie on hand.

Cheers, Craig

Bit of a shamless plug but while you are there have a word with the Simtek UK stand. I know they used to deal with both Omex and DTA, looking at the website they only stock DTA now but they might be able to answer some questions.

The reason for it being a shameless plug is that my cousin is the owner.

simteks the motorsport wiring guy? sure ive seen stickers on hillclimb cars that have been done

Thats the guy, does a lot of work for Bowler and Tomcat

600 is 545+vat
710 is 845+vat
DIY loom is £60+vat
Universal Raceloom is £220+vat

I'll see you there :)

prices are almost the same for 600 really, only a few quid in it, looms and mapping time are dearer
you on the stand? not going thursday/friday this year (licence holders and trade only), actually going on a public day for the first time in 10+years :eek: (meeting a few guys that are only exhibiting sat/sun) so will have to contend with all the public and catalogue collectors lol.
having exhibited at Autosports in prev years (for all 4 days each year :rolleyes: ) its a shitty job, other than oggling the odd hot bird (usually the GF of some huge petrolhead:( )

[QUOTE=
No not at all, Just the software is written by GEMS (to omex specification) who also do it for a lot of ECU manufacturers

are you 100% on that danny ? i'am sure
they hav'nt always made there own ecu's :confused: i know when i had that omex 500 series i had a lot of probs with it, 1st it was overfueling, so i took it back to norris, all they did was take that j shaped hose off of the iaa unit, then it got worse, he told me to take it back down but it wun't of made it all that way, also they wired it wrong so it would not stop on the key,i ended up paying a local tuner to look at it, it cost me hundreds in the end just to find the fault, it was the cold start capacitors in the ecu that had failed, omex sorted it, but they had to have someone come in to fix it, i found after spending £1400 @ ND and the not bothered attitude of both ND and omex appaulling, ok £1400 to them is nothing, but for some folk its alot, they repaired it foc but so they should, so it cost me over £400 in labour at another garage, which i thought should of been payed for by omex,or they should of picked the car up and sorted it themselves.

Yes absolutely sure.

500 series ECU has been supersceded a long time ago and isn't supported anymore. the 600 is a vastly superior ECU and will be enough for MOST 4 cylinder applications.

I dont know the details of your dealings, but that was several years ago and done through ND.

i'am sure it said on gems website that they made them.

some really good info here. i think i'll go with the omex. exchange rate good at the minute. when do ye open after xmas danny?
anyone shit hot at mapping omex in uk?

Mapping can be done at Omex. People in the office from the 5th Jan :)

omex :rolleyes: