Outbehindthebarn Posted March 2, 2016 Share Posted March 2, 2016 title sums it up. Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/ Share on other sites More sharing options...
Swishy Posted March 2, 2016 Share Posted March 2, 2016 R = Really really Good LOL R = Reduced Speed version of Basic Model (Reduced RPM) cya 1 Quote Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326314 Share on other sites More sharing options...
41chevy Posted March 2, 2016 Share Posted March 2, 2016 EM9-400R: 400 hp @ 1700 rpm, 1520 lb/ft tq @ 1230 rpm EM9-400: 400 hp @ 2100 rpm, 1520 lb/ft tq @ 1230 rpm Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326321 Share on other sites More sharing options...
HeavyGunner Posted March 2, 2016 Share Posted March 2, 2016 So why wouldn't they just make them all lower rpm higher hp assuming the high rpm doesn't/can't make 400hp @1700? Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326325 Share on other sites More sharing options...
Outbehindthebarn Posted March 2, 2016 Author Share Posted March 2, 2016 Mack. . . always keep you guessing. I was talking to a guy who says he has an E9 mated to a six speed... So that'd be a EM9-400R then? Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326327 Share on other sites More sharing options...
fjh Posted March 2, 2016 Share Posted March 2, 2016 A Maxidyne engine will hold on right down to 800 rpms Its not the best thing for em but they generate good power even below 1000 rpm! It is real amazing! Huge power band As for the R never seen one sorry! Might be as stated Restricted upper rpm duno! Quote Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326331 Share on other sites More sharing options...
Mack Doctor Jr. Posted March 3, 2016 Share Posted March 3, 2016 The M meant MAXIDYNE if I'm not mistaken. And the torque curve was way different then the E9 👈🏻 econodyne. Been so so long since I looked all that up I can't remember off the top of my head. But FJH is steering you in the right path. Quote Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326400 Share on other sites More sharing options...
TeamsterGrrrl Posted March 3, 2016 Share Posted March 3, 2016 The conventional Maxidyne has a power band from 1200 to 2100 RPM. With an R suffix the governor is set for around 1800 RPM, reducing the power band to 1200 to around 1800 RPM. Their was also an L suffix version of the six cylinder Maxidynes that shifted the power band down to around 1000 to 1800 RPM. Quote Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326415 Share on other sites More sharing options...
Vladislav Posted March 3, 2016 Share Posted March 3, 2016 20 hours ago, 41chevy said: EM9-400R: 400 hp @ 1700 rpm, 1520 lb/ft tq @ 1230 rpm EM9-400: 400 hp @ 2100 rpm, 1520 lb/ft tq @ 1230 rpm So if we turn 400R up to 2100rpm's would it bring its whole 500? And who is fjh? Bob Dingsdale?? Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326416 Share on other sites More sharing options...
41chevy Posted March 3, 2016 Share Posted March 3, 2016 20 hours ago, HeavyGunner said: So why wouldn't they just make them all lower rpm higher hp assuming the high rpm doesn't/can't make 400hp @1700? Higher power band is for OTR I would think. To get the power band up is the governor and I believe advancing the cam to crank timing, You still have 400 h.p. but at 300 RPM higher. Paul Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326419 Share on other sites More sharing options...
Outbehindthebarn Posted March 3, 2016 Author Share Posted March 3, 2016 Just a review, but, is there any R-E-A-L hard differences other than pump, injectors, timing, and turbo between an '82 EM9-400R or say a '93 CL E9-500? I've heard time and time again there is no difference between a 237 and a 350 two valve.... other than pump, injectors, etc... Oh, and one more thing.... what about EM'C'9-400R Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326457 Share on other sites More sharing options...
Yoos Brothers Construction Posted March 3, 2016 Share Posted March 3, 2016 'C' stands for California certified. As for differences between an EM9-400 and a E9-500 you pretty much got it covered. Josh Quote Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326466 Share on other sites More sharing options...
Outbehindthebarn Posted March 4, 2016 Author Share Posted March 4, 2016 Thanks Josh. Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/44213-what-is-the-r-in-em9-400r/#findComment-326477 Share on other sites More sharing options...
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