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Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

Are the injectors on a standard S2 electronic or mechanical?

I'm thinking about going standalone. I'm suspecting the standard ones can't be used?

I've read something about injectors from a type of Mondeo? I'm no expert on the matter, so any extra help is appreciated.

Cheers

Grenadiers · Posted: Wed May 12, 2010 5:03 am Post subject:

Open yer hood, if ya got one, and look~! No injector electrical connection on the stock turbo cars.

_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Rather than rehash things, do a quick search on this board for MegaSquirt. Specifically there was at least one post in the How-To section.

However, here's a summary:

You need to machine your stock injector inserts to hold the O-rings for your injectors (I'm machining my head, to eliminate the inserts, but then I'm a little weird)

Find or build a fuel rail to fit the injector spacing in the cylinder head, fit the injectors you're using and fit under the throttle body. This will take some effort to do.

Fuel lines will need to be adapted.

Ignition will need to be adapted for use with the EFI system you choose (or another system adapted to work in place of the stock solution)

Throttle body needs a throttle position sensor added.

Air intake needs to be changed to eliminate the CIS system.

Sensors installed in the engine bay and properly wired

Electrical system modified to for the EFI system

You'll need to tune the fuel and ignition systems, which is a lengthy process, made quicker by use of a Wideband Oxygen sensor and eventually a dyno-tuning session or two.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

Thanks for the info!

jessy1984 · Joined: 09 Jun 2009 Posts: 82 Location: belgium

Nein37 · Joined: 29 Dec 2009 Posts: 513 Location: New London, CT

Want is your reasoning for changing the injectors? Unless you are going EFI the stock injectors will flow plenty of fuel even for high boost applications.
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1981 931 CGT replica, OEM CGT intercooler, .8 BAR WG spring, GTS Headlights, Innovative Wide band A/F, A/C delete, 16" Fuchs, Weltmeister 200lb lowering springs, Bilstein HDs front, Koni Sport rears.

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

jessy1984 · Joined: 09 Jun 2009 Posts: 82 Location: belgium

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

I've been going through some older threads and i think i've found a helpful and experienced crowd in here.

I've owned some 924's already, but i always was a bit scared to mess with a running car.

I've finally decided to give it a try and just see what happens, hoping my wallet will survive somewhat .

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

Min · Posted: Thu May 20, 2010 1:02 am Post subject:

Its not dangerous if your careful.

Min
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Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.