oddballrovers Posted July 6, 2011 Share Posted July 6, 2011 Hello I am about to build a new truck and the engine is probably going to be a 4jb1, but I am missing one info that I have not been able to find either here or elsewhere and that is the max rpm. I know max power is at 3600rpm but to my knowledge that is not the same as the engine can not have a max at ie 4000 or even higher I am thinking off the value where the fuelpump cuts out, and I have used the search button with no result... Regards Ole Quote Link to comment Share on other sites More sharing options...
rope runner Posted July 6, 2011 Share Posted July 6, 2011 Hi according to my autodata cd The governed speed for smoke test is 4400-4800 rpm . Rated no load speed is 4700 rpm hope this helps Quote Link to comment Share on other sites More sharing options...
oddballrovers Posted July 6, 2011 Author Share Posted July 6, 2011 Hi Rope Runner That was exacly what I was looking for thanx great help. Kind regards Ole Quote Link to comment Share on other sites More sharing options...
dirtydiesel Posted July 6, 2011 Share Posted July 6, 2011 The numbers on the side of my fip's indicate that the govenor is set at 5250. Quote Link to comment Share on other sites More sharing options...
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