ECU/MPS Compatibility for 2056, D-Jet Experts? Options

[BeatNavy]

Getting everything together to install a 2056 into my '72 and swap out the steady, reliable 1.7L I've been running. The 2056 is '73 but came with '74 ECU/MPS combo. The part numbers are 049 on the MPS and 044 on the ECU. Sometimes I'm not sure if I read that ECU/MPS compatibility table on Anders D-Jet site correctly. Is the 049/044 a winning combination?

Also, I've read here that a 2056 really should run with an adjustable MPS. A couple of months ago I converted my 1.7L MPS to adjustable with the Tangerine kit. Any thoughts on whether I could effectively run my MPS (007) just by adjusting it appropriately, or are there other compatibility issues? Or do I need to make that '74 MPS adjustable?

Thanks for the help.

[Bleyseng]

As long as:
You have a stock grind cam with your 2056 the 044 ECU is fine.
The 049 can be adjusted to run with the 2056 no problem as it can be reset to the 043 specs.
The 007 can be adjusted too to run with the 2056 IIRC

If you have a nonstock cam like a Raby 9550 or a Web73 only the 049 can be adjusted to run with the 2056 because it doesn't have the inner cast stop ring in the cover which limits the amount of travel/adjustability for WOT

Make sure you have the correct 012 CHT!

[Frank S]

As long as:
You have a stock grind cam with your 2056 the 044 ECU is fine.
The 049 can be adjusted to run with the 2056 no problem as it can be reset to the 043 specs.
The 007 can be adjusted too to run with the 2056 IIRC

If you have a nonstock cam like a Raby 9550 or a Web73 only the 049 can be adjusted to run with the 2056 because it doesn't have the inner cast stop ring in the cover which limits the amount of travel/adjustability for WOT

Make sure you have the correct 012 CHT!

I'm confused now.
I'm just about to put my new engine together.
2056 cc
9590 cam
8,5/1 CR
037 ECU
017 CHT plus Resistor
BUT 043 MPS which I thought can be calibrated like 037 MPS. Is that not possible?
Do I need to look out for a 037 or 049 MPS since the 043 can not be adjusted to that settings?

Thanks,
Frank

[Bleyseng]

As long as:
You have a stock grind cam with your 2056 the 044 ECU is fine.
The 049 can be adjusted to run with the 2056 no problem as it can be reset to the 043 specs.
The 007 can be adjusted too to run with the 2056 IIRC

If you have a nonstock cam like a Raby 9550 or a Web73 only the 049 can be adjusted to run with the 2056 because it doesn't have the inner cast stop ring in the cover which limits the amount of travel/adjustability for WOT

Make sure you have the correct 012 CHT!

I'm confused now.
I'm just about to put my new engine together.
2056 cc
9590 cam
8,5/1 CR
037 ECU
017 CHT plus Resistor
BUT 043 MPS which I thought can be calibrated like 037 MPS. Is that not possible?
Do I need to look out for a 037 or 049 MPS since the 043 can not be adjusted to that settings?

Thanks,
Frank

It's easier to adjust a MPS using a 044 ECU out of a 74 than a 037 ECU. You have to have enough room (richness) at the WOT and using a 037 barely has enough. Plus you must have the rare 017 CHT with resistor for the idle to work at all with the 037 ECU.

[Frank S]

As long as:
You have a stock grind cam with your 2056 the 044 ECU is fine.
The 049 can be adjusted to run with the 2056 no problem as it can be reset to the 043 specs.
The 007 can be adjusted too to run with the 2056 IIRC

If you have a nonstock cam like a Raby 9550 or a Web73 only the 049 can be adjusted to run with the 2056 because it doesn't have the inner cast stop ring in the cover which limits the amount of travel/adjustability for WOT

Make sure you have the correct 012 CHT!

I'm confused now.
I'm just about to put my new engine together.
2056 cc
9590 cam
8,5/1 CR
037 ECU
017 CHT plus Resistor
BUT 043 MPS which I thought can be calibrated like 037 MPS. Is that not possible?
Do I need to look out for a 037 or 049 MPS since the 043 can not be adjusted to that settings?

Thanks,
Frank

It's easier to adjust a MPS using a 044 ECU out of a 74 than a 037 ECU. You have to have enough room (richness) at the WOT and using a 037 barely has enough. Plus you must have the rare 017 CHT with resistor for the idle to work at all with the 037 ECU.

AArgh, I have two working 037 ECU's and always thought the problem is only the 017 CHT which is NLA. I have two NOS units of that...
That means I need to look for a 044 ECU now otherwise my engine will end up idling to rich and run to lean at WOT?
Thanks,
Frank

[Bleyseng]

As long as:
You have a stock grind cam with your 2056 the 044 ECU is fine.
The 049 can be adjusted to run with the 2056 no problem as it can be reset to the 043 specs.
The 007 can be adjusted too to run with the 2056 IIRC

If you have a nonstock cam like a Raby 9550 or a Web73 only the 049 can be adjusted to run with the 2056 because it doesn't have the inner cast stop ring in the cover which limits the amount of travel/adjustability for WOT

Make sure you have the correct 012 CHT!

I'm confused now.
I'm just about to put my new engine together.
2056 cc
9590 cam
8,5/1 CR
037 ECU
017 CHT plus Resistor
BUT 043 MPS which I thought can be calibrated like 037 MPS. Is that not possible?
Do I need to look out for a 037 or 049 MPS since the 043 can not be adjusted to that settings?

Thanks,
Frank

It's easier to adjust a MPS using a 044 ECU out of a 74 than a 037 ECU. You have to have enough room (richness) at the WOT and using a 037 barely has enough. Plus you must have the rare 017 CHT with resistor for the idle to work at all with the 037 ECU.

AArgh, I have two working 037 ECU's and always thought the problem is only the 017 CHT which is NLA. I have two NOS units of that...
That means I need to look for a 044 ECU now otherwise my engine will end up idling to rich and run to lean at WOT?
Thanks,
Frank

The 037 ECU was setup for the 72-73 1.7L and Porsche had to make it work for the 73 2.0L as Bosch didn't have enough time to make a 2.0L unit. Hence the 037 MPS and 017 Cht with resistor. Using a 037 ECU is just a lot harder to make work with a 2056cc engine with a Raby cam as it needs a richer mix. So starting with a ECU that already needs a way richer mix means you have little adjustment left on the MPS. Way easier to use a 044 ECU......and it runs and idles better believe me.

[Frank S]

As long as:
You have a stock grind cam with your 2056 the 044 ECU is fine.
The 049 can be adjusted to run with the 2056 no problem as it can be reset to the 043 specs.
The 007 can be adjusted too to run with the 2056 IIRC

If you have a nonstock cam like a Raby 9550 or a Web73 only the 049 can be adjusted to run with the 2056 because it doesn't have the inner cast stop ring in the cover which limits the amount of travel/adjustability for WOT

Make sure you have the correct 012 CHT!

I'm confused now.
I'm just about to put my new engine together.
2056 cc
9590 cam
8,5/1 CR
037 ECU
017 CHT plus Resistor
BUT 043 MPS which I thought can be calibrated like 037 MPS. Is that not possible?
Do I need to look out for a 037 or 049 MPS since the 043 can not be adjusted to that settings?

Thanks,
Frank

It's easier to adjust a MPS using a 044 ECU out of a 74 than a 037 ECU. You have to have enough room (richness) at the WOT and using a 037 barely has enough. Plus you must have the rare 017 CHT with resistor for the idle to work at all with the 037 ECU.

AArgh, I have two working 037 ECU's and always thought the problem is only the 017 CHT which is NLA. I have two NOS units of that...
That means I need to look for a 044 ECU now otherwise my engine will end up idling to rich and run to lean at WOT?
Thanks,
Frank

The 037 ECU was setup for the 72-73 1.7L and Porsche had to make it work for the 73 2.0L as Bosch didn't have enough time to make a 2.0L unit. Hence the 037 MPS and 017 Cht with resistor. Using a 037 ECU is just a lot harder to make work with a 2056cc engine with a Raby cam as it needs a richer mix. So starting with a ECU that already needs a way richer mix means you have little adjustment left on the MPS. Way easier to use a 044 ECU......and it runs and idles better believe me.

I believe you and I'm looking for a 044 ECU right now.
Thank you so much for the information you share here to find that out myself would have taken years...
Only thing I didn't understand 100% is: Could I use my 043 MPS and adjust it or must it be a 049 MPS?

Thanks,
Frank