[Diy_efi] Projects

Sun Oct 14 13:40:46 UTC 2012

Hello Fred, thanks for the reply and insight.
?
It's the second generation USDM Escort (same as USDM Mazda).
The motor is the Mazda derived 1.9L SOHC, not horrible for a daily driver (I have a '93 wagon that has been a real workhorse).
But my interest is the ECU and intake hardware.
?
Like I said, original plan was to use the whole Ford ECU setup, and hack it as needed (Moates still sells bits to do this). Having owned and maintained my Escort (plus some years experience?writing assembly software on the base processor), I have the tools and experience for the job.
?
Much as I enjoy fiddling with such things, my goal is to have the motor running in the car and driving it.
Pragmatically, I think MS will let me do that quicker and easier. I'm already several years into the project, and my work life?makes it difficult to devote as much time as I would like.
?
There are too many examples of projects that were started but never completed on the web (and in my life).
?
I see my role as an integrator, using COTS wherever possible, and creating custom bits only where required.
?
I have several Spitfires to choose from (yes, I have LBC disease), but most likely will be a 1980 with factory hardtop. This would allow me to fit AC, very important in Florida where I live. (another 'after it's running' project)
?
Now, after it's up and running, might be opportunities to try some different things ;)
?
Carter
?

--- On Sat, 10/13/12, Fred Cooke <fred.cooke at gmail.com> wrote:

From: Fred Cooke <fred.cooke at gmail.com>
Subject: Re: [Diy_efi] Projects
To: diy_efi at diy-efi.org
Date: Saturday, October 13, 2012, 4:14 PM

Which escort exactly? And where are you? :-)

The yanks have an escort with a horrible engine and a Mazda body shell.

The pohms got the original two awesome RWD escorts (the real deal) and later Mazda based stuff. Us kiwis got the same as the pohms :-)

In any case, you don't need EDIS to run ignition without a distributor and with Mega$quirt. You can fit a wide variety of crank and/or cam triggers to the engine and run the coils directly. However, when using MS2Extra (which is a good choice, if you go Mega$quirt at all), EDIS will give better ignition accuracy. It's way better than any MS1 unit can produce, too. Having said that, MS2Extra accuracy is "good enough" by a large margin, so, back to the first sentence, you don't need EDIS on a four cylinder with MS2Extra. It can do COP or wasted spark AND sequential with 3.X firmwares and appropriately butchered hardware.

If you're feeling adventurous you could also use FreeEMS to run it, though your options are much narrower with that.

Got a picture of the car itself? Or just the MK if it's UK market style :-)

Regards,

Fred.

On Sat, Oct 13, 2012 at 9:53 PM, Carter Shore <clshore at yahoo.com> wrote:

It's a long term project, not many pix yet, have been planning, and acquiring the bits and pieces for years.

So far:
pristine (in OEM packaging) 1296 big journal crank.
Ex-IRL 6.00" rods, to take the Clevite 1798H 1.850" rod bearings.
Venoilia forged pistons.
Ex Nissan 300zx TT T22 turbo.
various intercoolers
1993 Escort complete intake, ECU, harness, sensors, etc.

The intake will be fabbed from Escort 1.9 hardware, it's perfectly sized for my application. The stock plenum is brazed from round aluminum tubes, which makes it easy to cut and interface to custom adaptors, using short lengths of 'mine spray hose' (this is tough stuff). The Bosch injectors will be fed from a length of fuel rail extrusion. I've already built the manifold adaptors, here are some pix and drawings of earlier activity.

http://www.flickr.com/photos/13867611 at N04/

The exhaust will be fabbed from a Pacesetter header, basically using just the flange and first 6" of the tubes, the rest to the turbo inlet will be custom bent tubes. Needs a custom turbine exhaust housing (the stock Nissan unit won't work). To clear the wastegate as it opens, will be made from a 1-1/2" steel pipe.

I was originally going to hack the Escort ECU (EEC-Sucka, etc.), but I think Megasquirt might be better supported and easier to tune. Will use EDIS based ignition, so the dizzy can come out, but have to mount a 36-1 timing wheel on the crank pulley.

The Spitfire rod bearinga are the weakest point. The crank uses 3 main bearings. So by employing the big journal 1296 crank instead of the longer stroke 1493 crank, I'll have a stiffer unit that has greater main-pin overlap. It will be smoothed, profiled, balanced, and Nitrided.

The stock Spitfire rods are nearly 750g. The stock crankpins are 1.889", by grinding to 1.850, I can use the IRL forged rods, which are about 535g. They are also 6.00" long (stock is 5.75"), which nicely matches the Venolia pistons that have 0.22 less pin height than stock. I'll have to get them rebushed for the Spitfire .8125 pins.

My initial attempt will be to get reliable 120 HP at 8-9 psi (stock NA is around 80 HP).
After shakedown and debugging, I'll see about running more boost, but I want to make incremental changes if possible, until I find how much boost the bottom end can handle. If the T-22 runs out of steam (as the compressor map predicts around 150 HP), I have a T-25 and a T-28 waiting.

So we will see, but getting there is half the fun.

Carter

--- On Fri, 10/12/12, Bill Shaw <b.shaw at comcast.net> wrote:

> From: Bill Shaw <b.shaw at comcast.net>
> Subject: Re: [Diy_efi] Projects
> To: diy_efi at diy-efi.org
> Date: Friday, October 12, 2012, 10:41 PM

> I've been having fun,? that's
> what it's all about.? :-)
>
> The turbo Spitfire sounds like it could be a fun ride,
> too.? Do you have
> any pics?
>
> bs
>
> On 10/12/2012 10:30 PM, Carter Shore wrote:
> > Nice projects Bill!
> >
> > I'm working on adding EFI to one of my Triumph
> Spitfires, as part of an overall turbo project.
> >
> > --- On Fri, 10/12/12, Bill Shaw <b.shaw at comcast.net>
> wrote:
> >
> >> From: Bill Shaw <b.shaw at comcast.net>
> >> Subject: [Diy_efi] Projects
> >> To: diy_efi at diy-efi.org
> >> Date: Friday, October 12, 2012, 9:13 AM
> >> It's good to see some life come back
> >> into the list again.? What's
> >> everybody been working on?
> >>
> > _______________________________________________
> > Diy_efi mailing list
> > Diy_efi at diy-efi.org
> > http://lists.diy-efi.org/mailman/listinfo/diy_efi
> >
>
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