Electromotive vs Motec

[BobDrye]

Maz:

The current Motec uses 1 processor from Motorola that is from 1991. The Electromotive uses a processor that runs at twice the speed. It also uses 3 processors that run at 3 different clock speeds. 1 for ignition, 1 for injection, 1 as a main processor.

 

Ducking for cover.

 

bob

 

 

 

http://www.usa7s.com/aspnetforum/upload/340252416_smile13.gif

[slngsht]

:lol: I was wondering WHO would start such a thread.

 

All I know is dating back to the late 80's, I've heard nightmare stories about Electromotive (besides my own first hand experience with picking up engine speed at cranking speeds - even with Electomotive's own billet aluminum "distributor" setup - we tried the crank sensor first with no luck - took it to Chantilley and they installed their own dist pickup, and still didn't work half the time while we were still there). Didn't Vector use Electromotive for their control system and have similar problems. Overcoming first impressions is a biotch

 

I can definitely see the need for Haltech/Motec/Electromotive, etc...

 

IMO, it is difficult for them to beat a stock unit out of a GM / Ford in reliability and cost, and with the aftermarket support out there, you can pretty much do anything with them, including serious boost (2 bar and 3 bar setups with custom OS)

 

[BobDrye]

Maz:

I went to Electromotive today and picked up a sensor. I installed it this afternoon, and the 7 runs fine. While I was at their shop a GM engineer called and asked about the shipping date for the prototype unit that they are going use on a 16 cyl engine. It's 2 of the units that I have.

 

 

:banghead:

[slngsht]

I don't know. I've also run into plenty of people who swear by them, so there must be something to that. I've just been burned by their Alex days... You know the saying... Fool me once, shame on me...

 

Fortunately I don't have to use my tongue to make the beast go fast :jester: I can just add cubes

[southwind25]

We have an older electromotive on ours with the front crank trigger, and so far so good...matter of fact the car starts great! even went through the PA washouts without missing a beat.

 

your milage may vary

[slngsht]

Maz:

While I was at their shop a GM engineer called and asked about the shipping date for the prototype unit that they are going use on a 16 cyl engine.

 

 

:willy:

[sporqster]

Coming into this thread late, but I'll throw in my .02 anyway - Used TECII - what a PITA that was - a lot of issues getting it to recognize the crank trigger. Used the SDS (which I have on my 7 currently) and like it much better. It is not as fancy, but, as the name "simple digital systems" implies - way easier to use. My current fav computer (and ironically cheapest), though is on my wife's 911-

 

MEGASQUIRT.

 

I don't have the ignition module for it, but if it anything like as cool as the fuel, it is one of the most rewarding electro-mechanical projects I've ever taken on - and there is a HUGE support network on the internet to help you through it.

[gjslutz]

I know what you folks are talking about. My 33 R.R. PII had a magneto on one side and a coil fired on the other side. You aim the timing light at the crank pick-up?

[sporqster]

I know what you folks are talking about. My 33 R.R. PII had a magneto on one side and a coil fired on the other side. You aim the timing light at the crank pick-up?

 

Hmm - interesting set up!

 

I think the issue (at least for me) was not an issue of the timing or accuracy of the spark coming out of the TEC once it started actually working (which is probably way overkill on the accuracy side), but rather the motor would turn over and over and the TEC wouldn't recognize that anything was happening. The trigger wheel is really finicky, and really suceptible to interference from electrically noisy alternators and such too.

 

I should note that the project I used the TEC on was my first project like that and I didn't entirely know what I was doing (not that I really do now either) so maybe my inexperience at the time contributed to my trouble.

[slngsht]

my experience was the same... not a spark problem... the unit simply would not pick up the RPM around cranking speeds sometime.

 

I built a megasquirt to use with the Rover engine I had in my seven at the time, but once I pulled the trigger to go with the LS1, it didn't make sense to do that anymore. Fun little project.

[BobDrye]

my experience was the same... not a spark problem... the unit simply would not pick up the RPM around cranking speeds sometime.

 

I built a megasquirt to use with the Rover engine I had in my seven at the time, but once I pulled the trigger to go with the LS1, it didn't make sense to do that anymore. Fun little project.

 

 

They have spent quite a bit of effort on the new crank sensor. The sensor that I used was 6 years old. When I talk about druability they respond with the fact that they have the most used system on winning cars in the Baha Race.

 

[solder_guy]

I like the idea of building my own megasquirt .. maybe next year I will ditch the dual carbs ..

 

Rob

 

[Arya Ebrahimi]

I'm sorry, but WTF are you guys talking about?

[slngsht]

I'm sorry, but WTF are you guys talking about?

 

:rofl:

 

Aftermarket ignition and fuel control modules.

 

Electromotive is a company in Northern VA. Pretty well known in the market. Their stuff works great when it works, but sometimes it doesn't

 

MOTEC - I have never used or seen their stuff first hand, but I'm pretty sure they're very high end for aftermarket systems. You can even adjust how much your big toe curls when you push the gas pedal.

[slngsht]

 

 

They have spent quite a bit of effort on the new crank sensor. The sensor that I used was 6 years old. When I talk about druability they respond with the fact that they have the most used system on winning cars in the Baha Race.

 

 

That maybe true. If you ever put me in the middle of the desert with an electromotive unit, I just won't shut the car off :lol: I don't think the unit was "unreliable" - I could reliably count on starting problems :lol: They just had some design flaw in picking up low speed signals. What ticked me off is Alex wouldn't fess up to it, until we finally towed everything out there, and his engineer started melting the potting away and changing resistors and capacitors in the unit. Cost us SO many hours on that project.

 

My definition of reliability includes going in the garage in the morning, opening the garage door, sitting in the car, cranking, and firing right up - every morning, year after year.