Freightrain Posted December 13, 2019 Share Posted December 13, 2019 2 hours ago, j hancock said: 15-18 psi at full rated speed. Yup, mine is in that range depending on the ambient air temperature. I know Tom's new turbo is in the low 20 range if I recall our conversation. Little more air can make a little more power and I think his burns a bit cleaner then mine. Mine smokes like an ol 237 when starting out. More air would help eliminate that over fueling situation at lower rpm. My motor was tuned on the safe side being a fire truck engine. Thus it would barely get to 900* on a hard pull. Giving it a touch more fuel boosted that number and didn't hurt fuel mileage. I don't lug it down hard due to Triplex. Around 1500 rpm is all it likes, as it really starts to let me know if I go any lower. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
Outbehindthebarn Posted December 18, 2019 Share Posted December 18, 2019 On 12/9/2019 at 9:31 PM, Victordc98 said: I would like to know how to raise the injection pump of my Mack em6 237 to 315 horsepower I remember that my engine is from the year 1982 and has an American Bosch injection pump. What's it like down in ol' Venezuela? Hasn't been much in the news lately. Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment Share on other sites More sharing options...
james j neiweem Posted December 18, 2019 Share Posted December 18, 2019 Rob: Silly me I forgot about the air. Quote Link to comment Share on other sites More sharing options...
Victordc98 Posted December 18, 2019 Author Share Posted December 18, 2019 how are you look here in Venezuela is a disaster nothing works politicians are corrupt and also do not let people progress insecurity is doing theirs and well here we are 1 1 Quote Link to comment Share on other sites More sharing options...
Victordc98 Posted December 18, 2019 Author Share Posted December 18, 2019 But going forward trying to work on the little that is left and mending our Mack trucks that are the strongest and the most reliable greetings 2 Quote Link to comment Share on other sites More sharing options...
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