EFI ECU experiences?

Dasdubber · 2007-03-06T05:24:22+00:00

I have been researching the options for ECUs available - I noticed after re-reading Wayne and Nick's threads that you both run Microtech LTX8. I was looking at the LT-10 which supposedly has recently replaced the LTX8 (judging by microtech website). Can I ask what are your thoughts and experiences with the microtech system....and also ask others who have used alternative systems how they rate? The microtech does not have the facility for EDIS right (electronic distributorless ignition system)? Whereas I notice the megasquirt does? Although the rest of the engine (type IV 2L) will be built on a budget (2nd hand turbo, single throttle body etc), I don't mind outlaying for a good ECU since I will reuse it on a bigger engine down the track. Likewise for the water to air intercooler (will shell out for a decent system since it won't be obsolete once I upgrade the engine). Any help is appreciated Alan

Turbo54 Veteran Volks Folk

2,220 posts · joined Jul 2004 · 3 May 2007, 3:02 pm

#589067

Alan,
Running a EB Falcon TB with TPS (throttle position sensor) and IAC.
$40 from your local wrecker.
T54

C'mon kids gather round,
there's a new sensation hitting town,
It's moving straight, low to the ground,
it'll pick you up when your feeling down.

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 · 3 May 2007, 8:19 pm

#589122

Turbo54 wrote:Alan,
Running a EB Falcon TB with TPS (throttle position sensor) and IAC.
$40 from your local wrecker.
T54

Ditto.... But I got my for a Little Creatures Pale Ale!

Good value I think!

:P

FUCH your early!

http://www.noh2o.org/

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 · 4 May 2007, 12:02 am

#589206

Hi Allen

I used an Autronic SMC on my old bug, it worked fine just like all these other system will.
The one big advantage was that Leigh AKA turboboy was running the same system, when I got my car ready to run, we put his map into my ECU, tweaked it a bit with an overall multiplication factor on the injectors until it sounded OK, drove to the dyno, quick dyno run with adjustment and it was sweet.

Quickfit in Hornsby did the dyno work and were very helpful, they don't have a dyno anymore. if I run Autronic on my next car they will lend me their Autronic gas analyser and will use the Autotune feature that the Autronic has, a run up the F3 free way and back along the old road should have it sorted.

As has already been said, I cant stress how important that it is for the dyno operator to be familiar with 1. your chosen system & 2. VWs

Also don't buy your system until the last minute, that way you are sure to get the latest system, I bought my Autronic about 3 years before I needed it, luckily for a small cost I was able to have the latest software installed in my unit including Autotune for a reasonable fee.

Steve

1303 Officially Full-On Dubber

250 posts · joined Sep 2003 · 4 May 2007, 7:47 pm

#589365

Allen,

I use an EMS 4424 on my EJ20T Beetle. Cheap and does the job. I have a bosch wide band sensor set up in exuast all the time, so I can use the autotune when ever. Also can use closed loop a/f control.

I think anything with pulse width modulated outputs, data logging, adjustable map points, closed loop and variable sensor configuration is the go. This way you can always adapt anything you want later on antilag, boost control, multi or single throttle body etc.

Like Steve says buy it last, they update the things every couple of months!

Paul

Dasdubber DAS Resto Haus

5,746 posts · joined Aug 2002 · 4 May 2007, 8:08 pm

#589375

Thanks again for the ongoing advice and tips.....this is part of the reason why I haven't shelled out on anything yet (apart from lack of funds). I need to learn some more before handing over the hard earned cash! Thanks to Ian (2442TT) and Evan (tassupervee) for their email advice as well - I will have a few more questions to come!

ALan

www.dasrestoparts.com.au