What are options for twin plug for EFI?
 

Gents -- what are your thoughts on most cost effective option for twin plug for EFI on 930? ...thinking motec ecu.

thx,
Joe

Re: What are options for twin plug for EFI?
 

If you are pretty good with electrics, the Megasquirt is very cost effective. I did the twin plug and EFI conversion on my 930 engine recently. Hobieboy has also recently completed his conversion using a similar setup. If you are going to have someone else do the conversion, make sure they are familiar with the ECU you use.

I've not been hearing such great shakes about Megasquirt... Primarily because support is a real issue. Since it's "public domain" there's no one to call if something isn't working right.

Joe, I am also moving to EFI next year more than likely and an considering Haltech and Autronic as two good options. SDS is another good choice, though I prefer the ability to use a laptop to program it, which SDS does not have.

However it sounds like you have EFI already.. If that's a case the easiest option IMO is Electromotive or a twin-plug distributor ala Steve Weiner/Andial/Burn Bros...

Good to see you at Nationals BTW. I've PM'd you my number if you want to talk about it and share ideas.

Supertec/BurnBros distributor, MSD and you're good to go.
Of course if old school feel doesn't matter, it's hard to beat modern electronics.
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As far as the EFI goes, Motec is the number 1 choice. The older M48 ECU is still way ahead of most systems out there. If you really want the best and latest ECU you should use the M600. Great software!
Whatever the cost....yes they are expensive...the support is always there if needed....the data you can log and sort through with Motec Interpreter is also very important, especially on a turbo engine.
As you know, Porsche engines are expensive to rebuild, so it is important to get it right the first time with no exceptions.

Thanks guys... answer to few of comments:

Henry -- on your twin plug, do you make one with sensing wheel that could go into ECU? Looks like top rotor contact may not be long enough to adj timing electronically.

yes will be doing myself (BS/MS in EE), heck of a long time ago though and don't do much of it now.

nope, do not have efi yet. ...been tooling around out there in CIS.

was thinking M4 ECU.

We build these distributors to use both mechanical advance (custom to every engine) and vacuum advance & retards.

Because they operate on MSD ignition boxes, stand alone or integrated boost retards are available.

Cost effective and Motec are not usually in the same sentence. Haltech can control a street car very well. I just installed Autronic on my dads car and my friend who's father owns a shop here on the west coast and has done plenty of Haltech installs said the Autronic was loaded with tons of features. I consider it a bang for the buck, it also datalogs. Autronic is also very popular with the turbo rx7 crowd.

Another way to go is do fuel now but leave ignition to a dizzy. Then once you have it running switch from dizzy to full electronic. Also do you plan on using a stock turbo intake?

regarding dizzy, yes that's an option i was thinking about ,and i could run it electronically with ecu. already running msd. ...would just be out twin plug for now.

looking at 3.2 carerra intake. ...anyone happen to have one with fuel rails laying around?

btw -- what are folks thought on not going twin plug... what do i loose not doing twin plug since would still be inductive with nice long spark and can run bigger gap.

Joe,
As Mike said earlier, I have just Megasquirted mine. Still in the fine tuning & sorting out last details stage but already survived 3 track days where I tuned the car :)

If you are "handy" and don't mind delving into electrical details, MS IMHO is very cost effective. The software is quite stable for me and from looking at other mid priced ones (e.g. DTA, SDDS, ...) I'm not sure if they have vastly superior hardware packaging. Can't comment on their design but MS serves my purpose for my track car.

a dizzy is ok but too dizzy if you are going to move into modern fuel and spark managment.
For the $$ spent and if you ever buy a new dizzzy cap and rotor you might as well go complete managment of you choice

New distributor cap and rotor $510. On ebay In the overall scheme of things, that's not much.

New technology offers great strides in performance but old school Porsche has never been beaten. I love that old time religion.

3.2 liters, two valve, 7.2 ;1 compression, 1.4 bar of boost, 740 hp. 20 years ago.
No electronic spark control, no fuel management. Just a big boost knob.

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Henry,
Is that car a 935/77? That would make that car 29 YEARS OLD!!!!
NOT 20.
Even more impressive...Gotta love the old school religion.

BTW...Did you notice that you posted at 935 a.m.?

New time religion: 500$ gives you assembled Megasquirt and EDIS for price of one distributor.

$500 will also buy you a tired Yugo. So what?

http://forums.pelicanparts.com/uploa...1159046372.jpg

LOL! Now that is funny...

Don't be confused, I think that is the price for the cap and rotor, distributor not included...

Cheers

Bs is Bs in any form. try a a dizzy in modern form No contest, Loser, To Try to say a dizzy is better then say just for fun Electromotive is just plain bull headed and stupid. If a Dizzy is better then Electro, Mega S, SDS and others is silly. They would have No excuse for existing. Just to push your product with such non sence is a relgion of its own..self consuming ,non carinng, money orentated, self obsorbed tunnel vision..yup your right, is old school burn in hell relgion.

Once again, you bring such logic, eloquence and intelligence to the forum. How could people of good intent do without your valuable insight ?

"A sighn of a week argument is to change the subject" ?? ( thats your quote ) and if you are unsure of your self..just try confusion and insults. Hennry ...thats your eloquent sales tecnique?...Oh gosh hennry and my intelligence Too ???.....them there is real good facts....for a one sided argument....