Mack superdog Posted March 18, 2022 Share Posted March 18, 2022 I have a mechanical e7 350 does anyone else up have one turned up to 600hp im thinking it should handle it with the 4 bolt main also what’s the biggest turbo that will bolt to a Mack manifold and is there any other manifolds that are a direct fit Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/ Share on other sites More sharing options...
Onyx610 Posted March 18, 2022 Share Posted March 18, 2022 This has got my interest! 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492524 Share on other sites More sharing options...
Popular Post Joey Mack Posted March 18, 2022 Popular Post Share Posted March 18, 2022 Yeah mine too??? I have only built stock E-7's / E-Techs... My guess it would need heads reworked, head studs instead of bolt's, turbo nozzles, hell I dont know, camshaft being degree'd... it's barely a 12 liter engine.. and why?? jojo 3 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492531 Share on other sites More sharing options...
mechohaulic Posted March 18, 2022 Share Posted March 18, 2022 might not be a matter of will the e7 350 handle the 600 hp, seems more like will the one behind the wheel know how to respect the 350 pushing 600hp. have been very fortunate to learn from a REAL mechanic building a 318 DD yrs ago; he had it tuned to point where exhaust stacks were blue ; point being the driver knew the HP was there when needed. not there every time key turned on. back then not many were concerned of actual HP engine had ; just knew it could. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492537 Share on other sites More sharing options...
Popular Post Onyx610 Posted March 18, 2022 Popular Post Share Posted March 18, 2022 Big hp in big trucks lead to big accidents. Don’t forget it doesn’t end at the engine. A lot of stuff from the clutch to the rears need to be replaced. 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492539 Share on other sites More sharing options...
Joey Mack Posted March 18, 2022 Share Posted March 18, 2022 I'm just curious.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492541 Share on other sites More sharing options...
Onyx610 Posted March 18, 2022 Share Posted March 18, 2022 (edited) Me too, I really don’t see why not. With a lot of fuel, air, timing, and machining. Compounds could also be an option. Edited March 18, 2022 by Onyx610 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492543 Share on other sites More sharing options...
Joey Mack Posted March 18, 2022 Share Posted March 18, 2022 I would like to know what it will be built for,? because riding 80,000 lbs down the road doesnt take much effort, I guess it might be about how fast you pass a KW or Petercar.. don't know,, just curios.. jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492544 Share on other sites More sharing options...
Onyx610 Posted March 18, 2022 Share Posted March 18, 2022 Might be just a toy too. We shall find out soon. This should be a good one though. Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492545 Share on other sites More sharing options...
theakerstwo Posted March 18, 2022 Share Posted March 18, 2022 Its a dream. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492546 Share on other sites More sharing options...
Onyx610 Posted March 18, 2022 Share Posted March 18, 2022 3 minutes ago, theakerstwo said: Its a dream. Don’t think it’s possible Glenn? Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492547 Share on other sites More sharing options...
mechohaulic Posted March 18, 2022 Share Posted March 18, 2022 seems mind set of younger generation unfortunately . know a 23 yr old truck driver (relative =won't say how ) LOL that is proud of his fancy red triaxle with "flat top eights" for us older folks ,myself included ;; flat top eights means twin 8 in flat exhaust pipes. he didn't like my reply :: don't sound as good as a B81 . Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492548 Share on other sites More sharing options...
Joey Mack Posted March 18, 2022 Share Posted March 18, 2022 heck, we have been commenting for 20+ minute's and he hasnt come back... Hmmm? I figured he would be watching, i'm still curious.. jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492550 Share on other sites More sharing options...
Hans Remmers Posted March 18, 2022 Share Posted March 18, 2022 Does anybody know the story on Mahan's black Superliner lettered as Nuss Truck Group? The description I've seen at shows claims it is a 650 Maxidyne "Hagerstown Special". Doesn't it have an E7? Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492552 Share on other sites More sharing options...
Joey Mack Posted March 18, 2022 Share Posted March 18, 2022 I would like to see it... I have never heard of such a thing, not saying it doesnt exist, just curious... jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492554 Share on other sites More sharing options...
880joe Posted March 18, 2022 Share Posted March 18, 2022 Wasn't there some marine applications producing that kind of power Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492556 Share on other sites More sharing options...
theakerstwo Posted March 18, 2022 Share Posted March 18, 2022 19 minutes ago, Onyx610 said: Don’t think it’s possible Glenn? Well it will give us all something to talk about for a few days.I dont think the engine will live long with making 600 HP. 2 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492558 Share on other sites More sharing options...
theakerstwo Posted March 18, 2022 Share Posted March 18, 2022 6 minutes ago, 880joe said: Wasn't there some marine applications producing that kind of power And for as a marine engine just thing about it ,its got the sea as a radiator Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492561 Share on other sites More sharing options...
Hans Remmers Posted March 18, 2022 Share Posted March 18, 2022 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492562 Share on other sites More sharing options...
Joey Mack Posted March 18, 2022 Share Posted March 18, 2022 Nice looking truck!!! I would love to read about the engine and how it was built, and if it was machined differently than a stock E-7,.. I always like to learn cool sh!t about a Mack, especially an RW... jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492563 Share on other sites More sharing options...
Popular Post Mackpro Posted March 18, 2022 Popular Post Share Posted March 18, 2022 I’m interested as well . I remember years ago doing a mild bump up to a buddy’s dump truck , I called the guys at Rochester Diesel for some injector advice, super nice guys and learned a lot from them . Injectors, turbo , pump timing and cam timing would need to be perfect to get reliable 600 hp but I think it could be done . A high torque clutch and trans would be a must! 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492564 Share on other sites More sharing options...
theakerstwo Posted March 18, 2022 Share Posted March 18, 2022 1 hour ago, Mackpro said: I’m interested as well . I remember years ago doing a mild bump up to a buddy’s dump truck , I called the guys at Rochester Diesel for some injector advice, super nice guys and learned a lot from them . Injectors, turbo , pump timing and cam timing would need to be perfect to get reliable 600 hp but I think it could be done . A high torque clutch and trans would be a must! And maybe more rpm which i am against 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492566 Share on other sites More sharing options...
Mack superdog Posted March 18, 2022 Author Share Posted March 18, 2022 It would be in a work truck I’m not worried about keeping it cool since the super liner has the same radiator that’s in my e9 Cl I run daily besides the e9 having 2 thermostats same with rear ends their Mack 44 rears they will definitely hold up to it only thing I don’t know that will would be the 8ll that’s in it heck even 500-550 hp would be good too Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492576 Share on other sites More sharing options...
Joey Mack Posted March 18, 2022 Share Posted March 18, 2022 typically, the tranny would be a 2018, and the rears would be 200 series, to handle the torque, of the big engines.. I guess if you are the only driver, it will live longer. Just my thoughts, jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492582 Share on other sites More sharing options...
Onyx610 Posted March 18, 2022 Share Posted March 18, 2022 @Back In Black Pulling might have some good info on this. Quote Link to comment https://www.bigmacktrucks.com/topic/69398-600hp-e7/#findComment-492585 Share on other sites More sharing options...
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