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EFI Bolt On Kit
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ideola  



Joined: 01 Oct 2004
Posts: 15506
Location: Woodstock IL

PostPosted: Sat Apr 21, 2007 6:45 am    Post subject: Reply with quote

CBass wrote:
I wonder if the 944 casting would fit...If you have a 944 body that you can measure, that would be awesome!


No need to measure. I have a 924S intake complete with TB as well as a 931 S2 intake complete with TB. I just confirmed that the 924s/944 TB is a direct bolt-on to the S2 intake manifold. Sweet!
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Raceboy  



Joined: 01 Mar 2004
Posts: 2321
Location: Estonia, Europe

PostPosted: Sat Apr 21, 2007 3:19 pm    Post subject: Reply with quote

Good news, but 924S/944 has on/off type TPS not variable resistance that is needed for standalone engine management system.
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fiat22turbo  



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

PostPosted: Mon Apr 23, 2007 5:49 am    Post subject: Reply with quote

If anyone is interested, I have two or three 2.2 Turbo one fuel rail, injector and regulator setups here. The regulator on the T1's are separate so they are easier to adapt. The Injectors are the same physical dimensions as the ones CBass posted (standard GM/Bosch pieces used on many US cars at the time)

Like I posted in another thread, the 1st generation Ford Escort (with the 1.9L CVH High Output engine) used a 2-piece intake that could be used on a 924 (after some port matching) and redrilling some holes. Since 1.9L EFI cars are about as unloved as turbo ones they are cheap and easy to find and part out.

I'll work on getting the intake fabbed up on a spare head I have and take some pictures.

As to the EFI "kit" I'd suggest just providing the instructions and a wiring harness and let the buyer source their own parts, much like the original MegaSquirt kits. B&G supplied the bare circuit boards and provided instructions and a parts list. As has been discussed already there is more than one way to skin the EFI "cat" depending on where in the world you are and what your skillset is, so the kit needs to be flexible to deal with those realities.

TTYL,
Stefan
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endwrench  



Joined: 07 Dec 2002
Posts: 1631
Location: Victor, Montana

PostPosted: Mon Apr 23, 2007 1:12 pm    Post subject: Reply with quote

Stefan,

Are there any hood clearance issues with the escort intake?. I seem to remember they are basically U shaped tubes to the plenum. The plenum is kinda small too.

Todd
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'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
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fiat22turbo  



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

PostPosted: Mon Apr 23, 2007 2:14 pm    Post subject: Reply with quote

I'm gonna look into that, I've only gotten far enough to determine that it will match up pretty close. I'm thinking that it may need to be mounted upside down which will make some things difficult (like injector R&R)

Yeah, the plenum is a little small. I think the later model 2.0L CVH dual path intake is a little better, but I don't have one to test with just yet.

Stefan
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HappyPuppy  



Joined: 04 Jan 2003
Posts: 114
Location: Chattanooga, TN USA

PostPosted: Fri Dec 07, 2007 2:35 pm    Post subject: Reply with quote

I know this may get overlooked, but I've been piecing together the parts for my 931 EFI conversion for a while, and have made an interesting discovery.

The fuel rail from a Mercedes SLK 230 Kompressor lines up with the injector holes on the 931 pretty well, and the injectors themselves, with some careful drilling, will slide into the small section of the injector hole almost all the way flush to the ceiling of the intake port.

I have not drilled out my holes yet--that was based on careful measurement. I also have no idea what the fuel pressure setting of the regulator is or the flow rate of the injectors, but seeing as its coming from a supercharged 2.3L 4-cylinder, it's probably more than adequate.
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