mackdaddytruckfixer Posted 5 hours ago Share Posted 5 hours ago Im looking for a clear path to build a E7 350hp mechanical engine to 500hp and as much tq as I can get. The engine must be able to live 500k miles and not need someone to babysit Pyro. Thx guys Quote Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/ Share on other sites More sharing options...
mrsmackpaul Posted 5 hours ago Share Posted 5 hours ago Dunno if your gunna find a "clear path" to 500 hp that you don't have to watch the pyro I was taught that I need to watch the pyro on a standard motor when really pulling hard, so on a motor that is adjusted right up for big hp and torque I think it will always be part of driving it if you want it to last A lot will depend on the weight your shifting If it is only the 80,000 pounds that are common in the U.S. then watching the pyro probably isn't as critical as if your pulling 200,000 lbs plus on road trains in Australia or heavy haulage Most people will say, don't fiddle with what you don't understand as this can ruin a motor pretty quick Also the Maxitorque box can handle huge amounts of torque but they have their limits as well Here is a link that might be helpful Remember you can't Have your cake and eat it Huge amounts of torque and hp will come at the cost of reliability, it's a balancing act Enjoy the ride Paul Quote Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/#findComment-587532 Share on other sites More sharing options...
Joey Mack Posted 5 hours ago Share Posted 5 hours ago Its 11 liters.. it wont live... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/#findComment-587533 Share on other sites More sharing options...
Geoff Weeks Posted 4 hours ago Share Posted 4 hours ago 14L mechanical couldn't do that. 11L can't either. It wasn't until electronic controls came out did you see 12.7L come close. Why? what are you trying to do? realistic expectations are a must. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/#findComment-587534 Share on other sites More sharing options...
The Rubber Duck 006 Posted 2 hours ago Share Posted 2 hours ago I would listen to JoJo and Paul. Also if you want horse right out the gate you'd be better off going with a 14.0L Detroit 60s series. 515hp from the Factory and it can handle more with a little upgrading. Quote Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/#findComment-587539 Share on other sites More sharing options...
Brocky Posted 2 hours ago Share Posted 2 hours ago My 1976 Brockway with a 290 Cummins (13 speed) that had a 335 pump installed with a "Touch of Dutch" you had to watch the pyrometer very close.. Granted it would pull, but lots of the time on a hill you had to drop a 1/2 a gear to keep it cool. Quote Brocky Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/#findComment-587540 Share on other sites More sharing options...
880joe Posted 1 hour ago Share Posted 1 hour ago I would think it's doable they made electronic e7's that were 454 with the inline pump and they lived a million miles. I wouldn't think 10 percent more would be that critical if it was done right Quote Link to comment https://www.bigmacktrucks.com/topic/76250-e7-350hp-to-500hp-that-will-live/#findComment-587547 Share on other sites More sharing options...
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