Suzuki G10 1L Miata

[Christ]

Fujioko - You drove two of the most underpowered diesels on the planet, Sir.

I have a 1.6L diesel Golf, and I agree, it needs boost. Stock, they came with something like 48-60 HP. The turbo diesels (IDI) came with 70ish or 92, depending on whether it was the ECO-D or just a Turbo IDI. Also, the VW diesels can handle upward of 200HP and still manage the same fuel economy. You just use less pedal.

The Mercedes, I don't know much about, but if it wasn't the 5 cylinder, it was dead in the.. well, the Mercedes. Especially with a slush-box trans.

[Bert]

What I do like and appreciate is that not everyone is glued to their I-pods and electronic 'pacemakers' and other assorted junk thinking they have all the answers to everyone's problems merely by hitting some keys.
All the best to you.

[fujioko]

You have a little of every thing in the thread I would place it as general
but I'm just a nube around here. If this turns into computer stuff we should have a repair NA conversion thread..Here is a little festy stuff.
do you need the miata pin out ?

Hi 'ya Movin,

Thanks for the pictures!

I have a good Miata wiring schematic ... I was stumped why the festiva schematic showed two dedicated lines to the TPS. The Miata has one dedicated line and a common reference plus a common ground.

Typically a TPS is just a variable resistor. I suspect the Festiva has some electronics inside the TPS. I cant imagination the ECM only looks for idle and WOT. My DVM confirms only idle and WOT but that is truly a bizarre way to run a railroad.

Anyway the miata also has an extra wire for "on idle" I was planing on abandoning this wire by tucking it in the harness unused.

I'm going to run the two dedicated wires with no common reference and let the ECM sort it out.

I think I have everything I need to move forward. Thanks!

Jim

[Movin]

Yes , typically they are, or they may have a idle position switch added,
but this critter talks a little different. You have the right stuff on both ends though!
Because of this the other fuel calculating inputs are really important, The logic reacts
to these more than normal.

I think you do too, awesome work, I love projects like this!

[fujioko]

Fujioko - You drove two of the most underpowered diesels on the planet, Sir.

I have a 1.6L diesel Golf, and I agree, it needs boost. Stock, they came with something like 48-60 HP. The turbo diesels (IDI) came with 70ish or 92, depending on whether it was the ECO-D or just a Turbo IDI. Also, the VW diesels can handle upward of 200HP and still manage the same fuel economy. You just use less pedal.

The Mercedes, I don't know much about, but if it wasn't the 5 cylinder, it was dead in the.. well, the Mercedes. Especially with a slush-box trans.

The Mercedes was a ’78 240D four cylinder. Just thinking about that car raises my blood pressure. Driving it was like trying to get an elephant to move by whipping it with a wet noodle. The accelerator only seemed to annoy the engine. The thing I don’t get is somebody at Mercedes thought a 60hp 3500 pound car was a great idea….. then somebody thought an automatic transmission would make it better.

I was excited to get a Mercedes for free! And was delighted to give it away for free..

Anyway that car is long gone. I’ll bet whoever got it gave it away a week latter.

Jim

[Christ]

That exact engine sits on a pallet in my barn. Because I can't find anything more useful than a tractor for it. :/

Great analogies!

[BigElCat]

Hi 'ya folks,

The G10 and B3 Miatas are my projects. I was really surprised to find this post.

Anyway, I'm going full speed on the B3 project and I have reached the point where I'm doing the ECM wiring.
Jim

Greetings Jim.

Your write ups are an excellent source of info for me. I'm planning (or dreaming of) a G10 swap into my Samurai. I'd have to duplicate your oil pan and brilliant/funky belt drive dizzy.

Knowing that Miata CAS coil packs can be fitted to a Festiva B3 is very interesting, too.

[fujioko]

Hi 'ya Bigelcat,

The G10 should be fit the sammy just fine.

The Miata CAS and coil packs will work on a Festiva engine with a simple circuit board. Might be a nice upgrade for a stock Festive.

The circuit board uses five transistors and a handful or resistors. Everything is available at radioshack. I'll publish the board schematic. in a week or so.

I have to double check but I'm pretty sure the guts of the Miata CAS can be swapped into the B3 dizzy. The steel CAS cover looks like it will replace the distributor cap.

Jim

[Rocketman]

Hi 'ya Bigelcat,

The G10 should be fit the sammy just fine.

The Miata CAS and coil packs will work on a Festiva engine with a simple circuit board. Might be a nice upgrade for a stock Festive.

The circuit board uses five transistors and a handful or resistors. Everything is available at radioshack. I'll publish the board schematic. in a week or so.

I have to double check but I'm pretty sure the guts of the Miata CAS can be swapped into the B3 dizzy. The steel CAS cover looks like it will replace the distributor cap.

Jim

How are you replacing the mechanical/vacuum timing advance & retard then? The dizzy does more than just offer a static timing signal, and the Festy ECU does not curve it, it's all mechanical, IIRC.

The Miata controls the timing curve electronically.

[bhazard]

Festiva has an electronic timing advance, not vacuum like a Capri.

[Rocketman]

Festiva has an electronic timing advance, not vacuum like a Capri.

Didn't know that, thank you