Distributor w/ Electronic advance for FI conversion

[Red0ktober]

I have lots of GM/Isuzu TBI parts on hand, so I'm thinking I'll convert my Kadett to TBI (the carb was rusting in the water-filled trunk when I got the car).

I understand there are some newer electronic distributors that will drop into the 1.9L CIH. What US market cars would have a compatible ignition system?

Thanks!

[RallyBob]

I
I understand there are some newer electronic distributors that will drop into the 1.9L CIH. What US market cars would have a compatible ignition system?

Thanks!

None, they are all from overseas. 2.0 or 2.2 litre CIH engines from later model Opels. You might try contacting Opel GT Source or Opels Unlimited. They import the entire engines, and usually remove the accessories prior to selling the engines.

[wrench459]

I have lots of GM/Isuzu TBI parts on hand, so I'm thinking I'll convert my Kadett to TBI ...

Give us a idea of all the parts that you've got laying around.
Someone might be able to mix and match parts to make a system.
I like crank triggers myself.

[Red0ktober]

I've worked on several Isuzu Troopers with the GM 2.8L in them, done some engine swaps and I have a parts car. I think I have all the components of a GM TBI system on hand, except a dizzy that will drop into the CIH engine. It's a simple speed-density system, not a lot of sensors.

[wrench459]

Paul
You've got me curious.
Are you planning on using the GM pcm?

[Red0ktober]

Yes, the GM PCM. The Trooper's use a 1228062 which I have worked with most, but I also have a 1227747 which is slightly older but very similar and more widely used, and a 16197427 which is one of the last and most refined TBI ECUs, but uses a different connector so I haven't messed with it.

For this engine, the Iron Duke code is probably what I'd start with. Those came TBI equipped, not sure what ECU they used, but should be readily available.

This will require a return line to the fuel tank as with any other injection setup. TBI operates at 12-15PSI. For the race car, I may mount an Isuzu Trooper fuel tank in the trunk, it's already set up with the proper pump/pickup and return, and it has a 21.9 gallon capacity.

[Red0ktober]

Google "GM TBI conversion" or "Holley TBI" (same setup) for some more info. It's such a simple and reliable system that it's been retrofitted onto many engines, like the Toyota 2F, Jeeps, and of course older GM V6 and V8s.

[wrench459]

Yes, the GM PCM. The Trooper's use a 1228062 which I have worked with most, but I also have a 1227747 which is slightly older but very similar and more widely used, and a 16197427 which is one of the last and most refined TBI ECUs, but uses a different connector so I haven't messed with it.

For this engine, the Iron Duke code is probably what I'd start with. Those came TBI equipped, not sure what ECU they used, but should be readily available.

That's what I thought.
First off the 1227747 pcm is about the most backward engineered thats out there.
Plenty of info ...and to this day GM has keep the same strategies.

I went a different route with the injection.
Used a 1994 T-bird 3.8L pcm (L4J1 code) to run the injectors.

[Red0ktober]

What did you do with yours?

[wrench459]

Oh my let me see.
Changed the firing order to 1-3-4-2-1-3-4-2
Set the ignition type to high data rate DIS
Had to adjust the MAF backflow maps.
And several other things....trans type,adaptive fuel and so on
This is of course with port injection.
And yes I was RallyBob'd


Closer look

[Red0ktober]

I don't know what the normal firing order is, or who rallybob is, but I'll assume that improves it somehow.

I'm new to these Opel things.

[Red0ktober]

None, they are all from overseas. 2.0 or 2.2 litre CIH engines from later model Opels. You might try contacting Opel GT Source or Opels Unlimited. They import the entire engines, and usually remove the accessories prior to selling the engines.

Oh, that's RallyBob.

[wrench459]

Ok back to the orginal problem.

Have you thought about remote mounting the ignition module
then use two flying magnets to trigger?

Heres a picture of the pick-up

[Red0ktober]

Haven't thought about that, no.

I did convert my Trooper to DIS, but the newer long-block I used was already set up with a crank trigger so no fabrication was needed, just a little wiring.

[ghcoe]

Have you looked into the Megasquirt system? A great system for a F/I conversion because it can be upgraded as you improve the system. You can start with just a simple speed density setup with a MAP sensor. The Megasquirt can be configured to work with just a points ignition.

MegaSquirt-I EFI System - SMD PCB3.57 w/ Black Case DIYAutoTune.com

They have a great support forum too.

www.MSefi.com • Index page

[Red0ktober]

I've looked at Megasquirt a bit, but not had need to use it myself. I've been doing GM injection on GM engines, so I've stayed with the their ECUs.

I may do a fuel-only configuration, but I figured that if a bolt-on distributor was available, I'd use that.

[wrench459]

I may do a fuel-only configuration...

Thats what I did ..two separate stand alone systems.
One for spark timing control (EDIS-Mega-Jolt)
Then piggy backed the PIP signal to the ECC-IV pcm for fuel control.

[ghcoe]

Megasquirt can control ignition too.

[wrench459]

IMO Bigstuff does it better.
BigStuff3.com

[Red0ktober]

Oh I know MS can do it, but I have this GM stuff just laying around already.