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#1
21-12-2008, 23:03
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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....
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#2
22-12-2008, 00:59
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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
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#3
22-12-2008, 10:33
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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
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Last edited by JackieFan; 22-12-2008 at 10:37.
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#4
22-12-2008, 10:38
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Quote:
 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.
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 Racing is life. Everything else, before and after, is just waiting. - Steve McQueen
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#5
22-12-2008, 15:53
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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.
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#6
22-12-2008, 21:45
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thanks for the info lads.
 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?
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Last edited by duncan; 22-12-2008 at 21:48.
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#7
22-12-2008, 21:51
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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. Last edited by sideways danny; 22-12-2008 at 22:00.
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#8
22-12-2008, 22:24
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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?
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#9
23-12-2008, 10:13
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Quote:
Going to be running Omex in mine when it comes to it but that's just because I got a good deal on one 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.
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#10
23-12-2008, 10:41
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this is what i did...
 made up a spacer ring and machined an omex trigger wheel blank to suit   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 
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Racing is life. Everything else, before and after, is just waiting. - Steve McQueen Last edited by CNHSS1; 23-12-2008 at 10:47.
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