dieselfuel007 Posted October 9, 2022 Share Posted October 9, 2022 I’m looking at a 2007 granite with a mp7 395hp we currently run grey motor granites 370 and 427 I’ve never been around any of the mp7 how will it run compared to our grey motor trucks all of these are tandem dump trucks Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/ Share on other sites More sharing options...
Joey Mack Posted October 9, 2022 Share Posted October 9, 2022 I have no use for the MP engine... It has good power, but when you have to fix it... you will be pissed.. The AI Mack is decent, compared to an MP.... This is my opinion based on my knowledge of Mack's over the last 25 years.. As far as parts gettin'.. You will have to search a bit more for the Mack part's, but they are out there.. I will stop here, to see what else comes down the pike... jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511407 Share on other sites More sharing options...
Mark T Posted October 9, 2022 Share Posted October 9, 2022 "04 MP7 ? Personally I believe is one of the best engines ever made and cubic inch for cubic inch ??? not much runs like one. Drivability is way better than an AMI with nothing done to it. "04 emission is an oddball. All by itself (which is likely what's in a '07 easy to spot as they are EGR only and no after treatment) They tend to puke injector cups on occasion (and there's no update) and have an appetite for EGR coolers (which ruins the mass air sensor....and module) and any one that's around now ? who knows what it may or may not need. They have potential to last a long time , but if the hours are up over 20000, odds are it's just another old worn out engine . A 395 that's in good shape ??? Probably you'd be happy with one in a ten wheeler . Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511408 Share on other sites More sharing options...
Onyx610 Posted October 9, 2022 Share Posted October 9, 2022 My vote goes to MP. When they are healthy they run real good. Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511409 Share on other sites More sharing options...
Joey Mack Posted October 9, 2022 Share Posted October 9, 2022 I do have to 'Bow down' to those of you that like the MP's.. They are very smooth running engines with a great power curve. They certainly pull hard.. My point of view is from a mechanics point of view... I dont care for an engine that needs injectors and cups every 200,000 miles or less. and when the rear mounted gear train has an issue, you have to pull the tranny, and the whole rear engine assembly to fix it.. I also dont like the fuel delivery system, where air can be introduced through the primer, and I also don't like the fact that to make these repairs you have to have thousands of dollars worth of tool's to fix it, and the knowledge to do so... and then when you are done.... you may have to hook to P.T.T. and re-program some of what you installed... lets not forget cam removal and replacement and that whole process.. If you have never done this repair,,,, you better study up on it... ask me how I know?? jojo 2 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511411 Share on other sites More sharing options...
Onyx610 Posted October 9, 2022 Share Posted October 9, 2022 (edited) Joey Mack is right, but if you’re curious how it will run compared to your grey engines….the red ones will blow the doors off a grey one. Edited October 9, 2022 by Onyx610 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511412 Share on other sites More sharing options...
Joey Mack Posted October 9, 2022 Share Posted October 9, 2022 yes they will...... dammit.... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511413 Share on other sites More sharing options...
The Rubber Duck 006 Posted October 10, 2022 Share Posted October 10, 2022 MP8 with a 13spd is my favorite 😍 485hp set to cruise at 77mph. 300 plus inch wheel base Ooooooooh Yeeeeeeeaaaah Baaaaaaaby!!!! Walkin' The Dog 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511419 Share on other sites More sharing options...
dieselfuel007 Posted October 10, 2022 Author Share Posted October 10, 2022 Well it’s sounds like it runs as good or better and I’ve got really good dealer support in my area do they have the low end power of the grey motor trucks Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511423 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 Very good low end power. Are you able to test drive the truck? Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511437 Share on other sites More sharing options...
fjh Posted October 10, 2022 Share Posted October 10, 2022 4 hours ago, Onyx610 said: Very good low end power. Are you able to test drive the truck? Yup descent power when running good! Luck of the draw as to the last statement! No secret on where I stand on these! That said no better no worse than the rest of the throw away trucks being produced these days ! KW PETE and all others not exempt from the previous statement! Good luck to you on your search for the perfect truck! Beauty is in the eye of the beholder!😁 Statement Not intended as click bait just my opinion! Just sayin! 2 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511441 Share on other sites More sharing options...
Mark T Posted October 10, 2022 Share Posted October 10, 2022 F, you're correct in my opinion. All these newer engines that are supposed to last so long seem like when anything goes wrong it's catastrophic. No matter the make. Upwards of 30K for a in frame ? find someone to actually do it ? truck sits for minimum of weeks before they get to it and get parts... Not like it used to be. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511456 Share on other sites More sharing options...
Joey Mack Posted October 10, 2022 Share Posted October 10, 2022 That's why I posted my take on this.. It suck's!! Us older guys, were able to fix the trucks with our hands/heads/ and a damn good set of tool's... have a service manual handy, and you get it done.. Nowaday's... to make a Million dollars in trucking,,,, start out with 2 Million..... 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511457 Share on other sites More sharing options...
Popular Post Onyx610 Posted October 10, 2022 Popular Post Share Posted October 10, 2022 (edited) Someday everyone will be talking very highly of these engines and missing them. Probably talking like you guys are now about whatever is current. It was pry the same way when vmac1, vmac2, and vmac3 came out. Same with other companies like Cummins, Cat, and Detroit. I remember older guys telling stories about hating the series 60 ddec when it first came out. By no means do I want all these engines with emissions garbage all over them, but It’s only going to get worse. Edited October 10, 2022 by Onyx610 3 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511458 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 I completely agree with what you guys are saying too, I guess it’s a case of you never know what you got until it’s gone. Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511459 Share on other sites More sharing options...
Popular Post Mark T Posted October 10, 2022 Popular Post Share Posted October 10, 2022 I can remember when I was a kid (I had no clue then what guys meant) guys say'n those transmissions with the bronze in them wouldn't ever be around long (lol) Then it was the computer controlled engine (guys wanted their foot going to an injection pump) Stuff is so complicated now and proprietary as well. and yes....when there's an electric motor on each wheel end.... we'll miss what we have now. 1 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511460 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 2 minutes ago, Mark T said: I can remember when I was a kid (I had no clue then what guys meant) guys say'n those transmissions with the bronze in them wouldn't ever be around long (lol) Then it was the computer controlled engine (guys wanted their foot going to an injection pump) Stuff is so complicated now and proprietary as well. and yes....when there's an electric motor on each wheel end.... we'll miss what we have now. Exactly my point. Not saying they are great to our standard and what most of you guys are really used to, but someday these MPs will be your guys e7 or whatever. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511462 Share on other sites More sharing options...
Mark T Posted October 10, 2022 Share Posted October 10, 2022 I once watched some show on TV . They had a CH of some form with an MP (think it was a 7) race'n a Superliner with a E9. So of course the CH got to the finish line first. I thought it woulda been much more interesting to try the same thing on a 6% grade grossed out to around 100K There's somehting to be said about some of the older stuff 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511463 Share on other sites More sharing options...
fjh Posted October 10, 2022 Share Posted October 10, 2022 10 minutes ago, Onyx610 said: Someday everyone will be talking very highly of these engines and missing them. Probably talking like you guys are now about whatever is current. It was pry the same way when vmac1, vmac2, and vmac3 came out. Same with other companies like Cummins, Cat, and Detroit. I remember older guys telling stories about hating the series 60 ddec when it first came out. By no means do I want all these engines with emissions garbage all over them, but It’s only going to get worse. Sad but true! You are correct on both counts! I swore I would quit when the drive by wire happened! I didn’t! I kinda evolved to it! That said it’s gone beyond what I want to think about! To much bs now not willing to evolve any longer don’t like the direction our and almost all industries have gone! i surrender! DONE! 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511464 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 May have been a little more fair with the mp10? Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511465 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 Say uncle! 🤣 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511466 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 As much as it sucks, atleast you guys got a lot of time working on, driving, and getting to hear/see all those older trucks in action. Most people these days didn’t get that opportunity. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511467 Share on other sites More sharing options...
Mark T Posted October 10, 2022 Share Posted October 10, 2022 (edited) I have a Peterbilt now with a Paccar in it. Can't do anything to it, and I don't mean silly stuff like delete. Guy can't even change road speed or anything like that. Gotta go to Paccar. I have to admit though, it does kinda make me think it's like picked up where the gray engine was abandoned !!! DON'T READ THIS POST JOEY !!! Edited October 10, 2022 by Mark T more information 2 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511468 Share on other sites More sharing options...
fjh Posted October 10, 2022 Share Posted October 10, 2022 2 minutes ago, Onyx610 said: As much as it sucks, atleast you guys got a lot of time working on, driving, and getting to hear/see all those older trucks in action. Most people these days didn’t get that opportunity. Sucks to be you bro.😂 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511469 Share on other sites More sharing options...
Onyx610 Posted October 10, 2022 Share Posted October 10, 2022 (edited) 8 minutes ago, Mark T said: I have a Peterbilt now with a Paccar in it. Can't do anything to it, and I don't mean silly stuff like delete. Guy can't even change road speed or anything like that. Gotta go to Paccar. I have to admit though, it does kinda make me think it's like picked up where the gray engine was abandoned !!! DON'T READ THIS POST JOEY !!! That’s crazy! I don’t know much about those but I have heard they are like the worst of the worst in terms of the newer engines. As bad as the MPs can be sometimes I think they are on the top of the list for the best engines. Even Cummins has a lot of issues with their tier 4 engines. Cat was smart and got out of the market. Edited October 10, 2022 by Onyx610 Quote Link to comment https://www.bigmacktrucks.com/topic/70540-mack-427-vs-mp7/#findComment-511470 Share on other sites More sharing options...
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