freightliner575

On ‎9‎/‎5‎/‎2018 at 10:53 PM, 2000CL713 said:

from the factory my truck is a E7-427hp (heavy o/o spec) which has the same setup as the 460hp motors just different programming. i had it upgraded to a 460XT file  which is not the normal 460 file. the 460XT is 490hp and the regular 460 is 460hp.  going from the 427hp file to the 460XT (490hp) file was night and day. felt like a whole different truck. didnt have to change anything else since my truck from the factory comes with the same parts. 

what i did tho was bought a whole different ECM and had the 460XT programmed put on that new ECM and kept my original ECM with the 427hp file on it so now i have both bc the 460XT is becoming very hard to have done since Mack will not release it most people and so i could put it back to factory settings if i ever sold the truck or had a bad ECM i had a spare for backup. 

as far as differences its like i said before. i would sold the truck without that 460XT file lol. i was very disappointed with the 427hp file. some people like it and some dont. it didnt work for me. from the day i bought that truck i didnt like the power but once it was uprated to the 460XT it was a whole different animal. not something id put in the hands of a newb bc he will tear shit up without a doubt. it makes more power all over the RPM range. i now gets out of its own way. traffic has to keep up with me now. not the other way around lol the down side is that MPG has dropped from 7mpg to around 5.5mpg which is a trade off im willing to make bc of how unhappy i was with the 427hp but i can always go back to it bc i have both ECM's. 

you going from 350hp to 427hp im use will be night and day as well bc thats even more of a drastic HP change then i did. whats nice about the 427hp file is the MPG it gets and its safe. wont have to worry about braking shit and the truck will run forever. coolant temps and pyro temps will always be safe as well. if the truck is not in tip-top condition the 427hp file wont find the weak link, with the 460XT it will but i keep my trucks at there best. all the updates/grades that have came out with over the years have been done whether its better oiling system or better pushrods. you name it. id had it done. 

Ok, So who did you get to reprogram the ecm you bought?

9 hours ago, 2000CL713 said:

from the factory my truck is a E7-427hp (heavy o/o spec) which has the same setup as the 460hp motors just different programming. i had it upgraded to a 460XT file  which is not the normal 460 file. the 460XT is 490hp and the regular 460 is 460hp.  going from the 427hp file to the 460XT (490hp) file was night and day. felt like a whole different truck. didnt have to change anything else since my truck from the factory comes with the same parts. 

what i did tho was bought a whole different ECM and had the 460XT programmed put on that new ECM and kept my original ECM with the 427hp file on it so now i have both bc the 460XT is becoming very hard to have done since Mack will not release it most people and so i could put it back to factory settings if i ever sold the truck or had a bad ECM i had a spare for backup. 

Ok I understand. My truck is a 2002 CL, and it has the ccrs engine, So im told 460 XT is not an option for me because it wasn't offered in the ccrs engines. But I have learned that going with the 460 injectors and 427 programming and 427 turbo(because it doesn't have wastegate) is my best option. Who did you get to do your ECM programming? Im having a very hard time trying to get someone to program my ecm, I would also look at buying a used ecm with the right programming if I knew where to look.

Ok, So where did you get your ecm uprated? and what program did you start with? and what did you uprate to? and how much difference have you found?

9 hours ago, Mack Technician said:

There is one guy up here who can do it and one guy in Kentucky who can do it. The rest of the country seems to be given over to gray engine amnesia. 

thanks to everyone, Mack Tech and 2000CL713, do you mind giving me some info to contact these guys? my email is freightliner575@yahoo.ca.

hi, my mack dealer says they cant reprogram ecms for Etechs? does this sound right?, Im trying to uprate my 2002 Cl with the E7 350 ccrs engine, to 427, all I want them to do is reprogram ecm to suit, and I will replace turbo and injectors, anyone who can do this for reasonable price?

Hey all, Im wandering if anyone can decode this Vin, Im looking to find out exactly what engine type it is and HP and if its a CCRS engine, Im looking for ecm part number as well. vin number is: 1M2AD62C63M012388.