sixfourkid Posted April 16, 2009 Share Posted April 16, 2009 Hey guys, I got this new mack granite, we havent even used yet. Me being the idiot i am. I wanna squeeze more power outta this thing. So my question is, the truck has the maxitourqe 370 excusses me for my ignorance on the model number of the moter.. Is there anyway to turn these trucks from 370 to 450 or is it gonna be to much money and not even worth it for the little bit extra. And would it be dependable. Quote 2008 Ford F-250 6.4l Crew Cab short Bet lifted on 20s 2007 Mack Granite ( Still waiting to put a Dump box on) 2005 Cat 257B Track skid Steer 1997 Cat 312B 1993 Ford L8000 15' heil dump box 1990 Mack CH set back axle 1988 Cat 953 Not Bad for a only being 22 Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/ Share on other sites More sharing options...
ThaddeusW Posted April 16, 2009 Share Posted April 16, 2009 2007 Granite, MP7 or ASET engine? The easy way to tell between the two: MP series engines were painted red, the ASET was gray or black I think. If its a dump truck from what you list in your sig then 370 might be enough. Is it a tandem or tri axle and how much weight are you grossing? Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-33862 Share on other sites More sharing options...
sixfourkid Posted April 16, 2009 Author Share Posted April 16, 2009 2007 Granite, MP7 or ASET engine? The easy way to tell between the two: MP series engines were painted red, the ASET was gray or black I think. If its a dump truck from what you list in your sig then 370 might be enough. Is it a tandem or tri axle and how much weight are you grossing?Its the Mp7, Tandem axel, the heaviest i ever pull is 65,000. I would just like to bump it alittle if it is possible with out to much of a hassel. I Quote 2008 Ford F-250 6.4l Crew Cab short Bet lifted on 20s 2007 Mack Granite ( Still waiting to put a Dump box on) 2005 Cat 257B Track skid Steer 1997 Cat 312B 1993 Ford L8000 15' heil dump box 1990 Mack CH set back axle 1988 Cat 953 Not Bad for a only being 22 Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-33875 Share on other sites More sharing options...
ThaddeusW Posted April 17, 2009 Share Posted April 17, 2009 Its the Mp7, Tandem axel, the heaviest i ever pull is 65,000. I would just like to bump it alittle if it is possible with out to much of a hassel. IThe MP7 is only rated to 405HP, beyond that the MP8 is used to 485HP. Anything beyond 405HP on an MP7 and your going to have to play with turbo's and computer settings with a chip. And that's hoping its a pre-2007 emissions truck. Screwing with the emissions systems can cause all kinds of problems and is illegal . Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-33888 Share on other sites More sharing options...
sixfourkid Posted April 17, 2009 Author Share Posted April 17, 2009 The MP7 is only rated to 405HP, beyond that the MP8 is used to 485HP. Anything beyond 405HP on an MP7 and your going to have to play with turbo's and computer settings with a chip. And that's hoping its a pre-2007 emissions truck. Screwing with the emissions systems can cause all kinds of problems and is illegal .No its a pre 2007, with out any of that emisions crap on it. How would i turn it to 405? Thanks, for the input Quote 2008 Ford F-250 6.4l Crew Cab short Bet lifted on 20s 2007 Mack Granite ( Still waiting to put a Dump box on) 2005 Cat 257B Track skid Steer 1997 Cat 312B 1993 Ford L8000 15' heil dump box 1990 Mack CH set back axle 1988 Cat 953 Not Bad for a only being 22 Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-33900 Share on other sites More sharing options...
ThaddeusW Posted April 17, 2009 Share Posted April 17, 2009 No its a pre 2007, with out any of that emisions crap on it. How would i turn it to 405? Thanks, for the inputFor that I am pretty sure all you need to do is go to a Mack dealer, give them lots of money and they will program the ECU for 405HP . Its silly to charge so much for a simple software update, something that has been done for free with computers for ages. It bet its only a few bytes (maybe even bits!) to tell the ECU to work at 405HP.I doubt there are any Blixton like modules for the MP7 unless someone knows of one. This new stuff is going to get to the point where modding the engine for more power is going to be impossible without breaking the law. Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-33914 Share on other sites More sharing options...
Mackpro Posted April 17, 2009 Share Posted April 17, 2009 The 395C version of the MP7 puts out 1560 lb-ft of torque while the 405E and 405M only put out 1460 and 1480 lb-ft of torque. Look at the sticker on your valve cover and see what you have now. Quote Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-33929 Share on other sites More sharing options...
rick harper Posted May 6, 2009 Share Posted May 6, 2009 You wouldn't believe the expense we go thru to communicate with these trucks. The laptop alone is around 4000.00. So with that said, I don't think some charges are that out of line. Quote Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-34840 Share on other sites More sharing options...
Gambi80 Posted May 6, 2009 Share Posted May 6, 2009 You wouldn't believe the expense we go thru to communicate with these trucks. The laptop alone is around 4000.00. So with that said, I don't think some charges are that out of line.Just take the $4k and teach it to talk to you like the knight rider car...but not with David Hasselhof Quote Ever wonder how a blind person knows when to stop wiping? Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-34846 Share on other sites More sharing options...
Mackpro Posted May 7, 2009 Share Posted May 7, 2009 You wouldn't believe the expense we go thru to communicate with these trucks. The laptop alone is around 4000.00. So with that said, I don't think some charges are that out of line.I just ordered another laptop through Mack. "Toughbook" with all software already loaded, it was $4100.00 and that was with out the interface to hook to the truck. We have had our other "Toughbook" for almost 4 years and it has been great, it was worth the money. What really bad is there are no troubleshooting books for 2008 and up engines, it all on the software on the computer. Quote Link to comment https://www.bigmacktrucks.com/topic/9064-mack-granite-from-370-to-450/#findComment-34879 Share on other sites More sharing options...
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