theakerstwo Posted January 20, 2019 Share Posted January 20, 2019 I heed some one to lend me their vin# so I can order a ECU for mine.It needs to be a 97 year with a 427engine and its a VMAC2.And reason for this is I am up grading HP from a 330/350.Piston have been changed and iinjectors plus turbo.Thanks if you can help me. Quote glenn akers Link to comment Share on other sites More sharing options...
Mackpro Posted January 20, 2019 Share Posted January 20, 2019 The VMAC 1 and 2 ECMs are getting hard to get from Mack. The part number of the ECM has nothing to do with the HP rating. A 300 HP engine and a 427 HP engine can have the same part number ECM. Also if you do get a new/Reman ECM from Mack it will be blank with the basic program in it, usually 250HP. Dealership has to program it to a specific VIN , that’s where you get the HP rating. Hopefully Mack Corprate still has a guy to set up the VMAC 1and 2 software for the dealership. A couple years back I tried to do a HP upgrade on a VMAC 2 and Mack corprate had only one guy that knew how to do the older VMACs. He was on a 2 week vacation and I had to wait. As of 3 months ago the VMAC 3’s are still good to go on ECMs and software/HP upgrades. Quote Link to comment Share on other sites More sharing options...
theakerstwo Posted January 20, 2019 Author Share Posted January 20, 2019 Thanks for the info I may be better off trying to get one of the ecm tuners to up rate it.There is a few in tex. that have websites I can call and ask. Quote glenn akers Link to comment Share on other sites More sharing options...
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