1598cc wrote:unichip> hows that work? reprograms ecu or?
It's a piggy back unit. Go to www.unichip.com.au
MR2:

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KiwiMR2
Moderator: The Mod Squad
1598cc wrote:unichip> hows that work? reprograms ecu or?
All_Fours wrote:If you can use stock sensors etc and only need to solder new plugs onto the end of the old loom, then it would be much more affordable then I said.
Also for the $1,500 + I saved by buying a Microtech I can do modifications that will yield more gain than I would have seen by buying a more expensive ECU.
As for the downsides, one of them, which was apparently wrong, was the extra work involved in install, and other than that it's cost.
I'm sure it's great to not have to worry about how much something costs and buy the best of everything, but personally I don't have an unlimited budget, and I can't justify throwing more than $3K at a car for an ECU.
fivebob wrote:What gets me is people will spend silly money on useless bodywork, BOVs, exhaust systems, Turbos etc, but when it comes to the ECU they try to go as cheap as possible, and often end up spending more cause they have to rebuild a motor or even from something as simple as increased fuel consumption
fivebob wrote:BTW whay has no one mentiond the Hydra Nemesis it's proabaly the best of the cheaper ECU's for a 3S-GTE
fivebob wrote:So I take it that the Microtech will do distributorless ignition (four coils or two?), but how about staged injectors, Boost control (gear/speed dependent), Water injection control, intercooler spray, thermo fans, traction control, launch control, flat shifting, data logging, EGT, etc etc?
fivebob wrote:Or does it run out of spare outputs before you get very far?
fivebob wrote:There's much more to the cost of ownership than just the purchase price, if you buy an ECU that's at it's limits just controlling the basic things then you end up spending more than the expensive ECU because you have to by add on items.
fivebob wrote:there's no real cost difference if you want to do anything beyond thebasic, in fact a Motec can work out cheaper if you use it's features.
fivebob wrote: Haing run a Motec M800 for four years I have yet to discover any downside.
matt dunn wrote:fivebob wrote: Haing run a Motec M800 for four years I have yet to discover any downside.
Is there a reason you went M800 over M600?
From the info they have sent me the only difference is 8 coils/injectors over 6 coils/injectors. Do you run it on a V8 or is it better for another reason?
So I take it that the Microtech will do distributorless ignition (four coils or two?), but how about staged injectors, Boost control (gear/speed dependent), Water injection control, intercooler spray, thermo fans, traction control, launch control, flat shifting, data logging, EGT, etc etc?
Or does it run out of spare outputs before you get very far?
Tukumi wrote:Yes, the current LinkPlus will do: distributorless ignition, staged inj, boost control, water spray, thermo fans, launch control, flat shifting, and how about that closed loop knock?
1) you definitely pay for this in installation and tuning
2) 95% of people are not in race teams so will not need the additional features: Therefore I believe both Link and MicroTech offer much better value for money.
We regularly quote around $2200 + GST to install a base Link LEM V5 (staged inj, boost/idle control, mappable up to 22psi) - that INCLUDES price of computer AND 2wd dyno tune! Um, don't M400's cost that for the computer alone? Then it costs several thousand for the install and tune - I have personally heard the stories.
Don't get me wrong, for the right people we reccomend MoTeC - but for the vast majority we reccomend a better value for money option.
And at the end of the day, you have to have a computer that your tuner is competent with.
BTW what is your definition of average? Granted the average Toyspeeder with a 1980's or cheap 1990's car might not want these features, but I'll bet that if they were available on the "cheaper " ECU's they'd use most of them and be very grateful that they had purchased such a wonderful device.
Tukumi wrote:You would be surprised (or perhaps not after reading a lot of posts on here) but most people actually don't care/don't understand about the intricacies of engine management, such as the actual differences between peak and hold vs ballasting of low impedance injectors; hence I stand by my comment that the majority of the things you have listed are not really necessary for a road car!
Hmm, more than 2 bar boost, how many people run daily drivers on more than 28psi?
C'mon, and EGT's, whilst extremely useful for tuning, are not something you *need* to be handled by the computer - the TechEdge system is great for this.
Haha I am not saying that installing/tuning an engine management system is beyond most people, far from it, I do and have done it myself - but most people just don't care to do it themselves!![]()
Boost, fuel, and ignition control are generally part of most aftermarket ECUs, not an add-on.
You are correct though in mentioning PowerFC's as they are pretty amazing value, I cannot fathom why they didn't make a wire-in system though!
HAHA my definition of average is NOT an engineer who installs and tunes their own engine management system OR someone with the vast experience in tuning that YOU obviously have!!!![]()
Yes, the Nemesis looks like an interesting system, especially being plugin.
Don't get me wrong either, Link's have their flaws (although hopefully soon remedied in the new platform) and I am not disputing that a MoTeC is a superior system (but not for the money!), but it really gets up my wick in cases like this because people read threads like these and form the opinion that "you obviously can't run a 3SGTE on anything less than an M400"
On a related note, I always find it amusing when people base their ECU purchases on reading about a racecar with a given ECU - its obvious that making (peak) power is the easy bit (you could do that with a batch-fired, distributed computer!), no matter what brand of computer, but making it driveable and the additional options are what separates the men from the boys.
find it somewhat sad that people don't bother to educate themselves on the features of one of the most useful tuning devices in the automotive world. I suppose they prefer the Bling Bling of a grossly mismatched turbo, or even, dare I say it, see neons as a performance add-on... By the time they figure out that the EMS is the most important tool in engine modification available today, they've wasted far more that the cost of a Motec on crap that's caused them grief.
Again my point is about the quality of these features, rudimentary boost control can be done with a bleed valve, but if you want features like gear or speed dependent boost control, or emulate factory features like lowering boost when the engine is cold, or even in car boost control not many ECU's will cater for this. If you want to buy an aftermarket controller, like the Blitz DSBC & Power meter, it costs a lot of money to get just one of these features. By the time you've bought the Link/Microtech and the boost controller you could easily spend more than the Motec. Again it's all about "total cost of ownership".
Careful now, you shouldn't make assumptions
My first exposure to EMS tuning (other than do some debugging on the PROM code in a Sierra Cosworth in the 80's) was my M800 install. I'm not an engineer, nor do I have vast experience. I do however pride myself on doing thorough research and understanding what I am doing before I start such a project. I suppose it also helps that I have a very good knowledge of the infernal combustion engine, and can read and understand most of Prof. Gordon Blair's "Design and Simulation of Four Stroke Engines"
RedMist wrote:Fivebob,
The Motec is undeniably a good ECU. However attempting to sway someone into purchase of a product based on features that they are unlikely to use isn’t prudent. Especially as most of those listed features are chargeable options on the M400-M600.
My belief is that an ECU should be evaluated using a cost needs analysis.
You shouldn’t push one ECU as the be all and end all for engine / trans control for all users. For instance the Motec M800 is useless for my needs. It doesn’t have enough inputs (suspension pots), has very limited data logging, won't trigger my trans the way I want it to, wont trigger my bypass shocks, doesn’t have serial input for GPS, wont accept G sensors, and doesn’t do WiFi.
Saying that its a very technical solution that I wouldn’t recommend to anyone who cant programme in C and rifle through a tonne of rubbishy documentation.
mister2 wrote:Aha, that is one thing that Link at least can do decently, using a boost control solenoid.
Hahaha I wasn't assuming you were an engine management engineer - you have said software analyst... and reading Blair's book alone probably qualifies you more than most. I like his treatment of unsteady gas flow, and found his 2 Stroke book very interesting.
What I find amazing is with the wealth of information available these days (even the NACA repository is on the web! and SAE articles! and mech eng libraries) that people still rely on 2nd hand information off forums
So can we agree that the answer to "What ECU for my 3SGTE??" is "It depends upon your budget!!"
Gear/Speed Dependent? Lower Boost on a cold engine? In Car boost control? I didn't see any of those features listed in the Link software.
Of course, but with the proviso that you realise the limitations of budgeting to low and not taking into account possible future expenses because the systems doesn't do what you require it to do. You know that "Total cost of ownership" thing
Wow thanks for all the advice guys, seems like ive got myself some thinking to do
mister2 wrote:The MoTeC ADL is (again) a great piece of kit... for the price. Don't you find it a little galling that when you upgrade it is simply a code in the mail?
Anyway, you'll have to check out the LinkDash once I've finished it in a month or so
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