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914World.com _ 914World Garage _ 1.7 to 2.0

Posted by: nycchef Apr 17 2007, 07:24 PM

putting a 2.0 i my 73 orange money pit. will my mps work with a 2.0 or are they different?

Posted by: 914Sixer Apr 17 2007, 07:47 PM

Nope, 1.7 is 049. 2.0 is 037 for 73, 74-76 is 043. You will need the matching ECU and the correct cylinder head temp sender for each year.

Posted by: drewvw Apr 17 2007, 08:00 PM

go to the pbanders site on rennlist....its got the info.

http://members.rennlist.com/pbanders/DJetParts.htm

Posted by: jk76.914 Apr 17 2007, 09:53 PM

Last theory I heard was that they ARE the same, just calibrated differently. You can recalibrate your 2.0 to 1.7 specs, and away you go!

Posted by: jk76.914 Apr 17 2007, 09:54 PM

QUOTE(jk76.914 @ Apr 17 2007, 11:53 PM)

Last theory I heard was that they ARE the same, just calibrated differently. You can recalibrate your 2.0 to 1.7 specs, and away you go!

Or, you can recalibrate your 1.7 to 2.0 specs! (what I meant to say)

Posted by: computers4kids Apr 17 2007, 10:55 PM

QUOTE(jk76.914 @ Apr 17 2007, 08:54 PM)

QUOTE(jk76.914 @ Apr 17 2007, 11:53 PM)

Last theory I heard was that they ARE the same, just calibrated differently. You can recalibrate your 2.0 to 1.7 specs, and away you go!

Or, you can recalibrate your 1.7 to 2.0 specs! (what I meant to say)

Yep, just have it re-calibrated. Email Blyseng or pbanders

Posted by: Dr Evil Apr 18 2007, 10:29 AM

Bleyseng is the one who does the recalibrations. To work well you will need this done. You are lucky in that you have a 73 brain in your car. It was the same for 1.7 and 2.0. You will need to make sure to use the 2.0 injectors and you will need to either find (not likely) or modify the CHT on the engine as the 73 CHT was a special one with a different value that I can not remember. You can always try to take the one off of your 1.7 as it should be the same, and the 2.0 you get will likely have one in it, but I would check resistances of the CHT against the values listed on pbanders page in the link above.

Posted by: pbanders Apr 18 2007, 10:42 AM

I don't do recalibrations, I just provide info on how to do it, see my site. The only difference between a 1.7 and 2.0 MPS is how it's calibrated. Both have exactly the same part-load calibration, they differ only in how they richen the mixture under medium to full-load conditions.