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Old 08-07-2018, 06:12 PM   #10
ramthiscummins

Name: ramthiscummins
Title: Too Much Time
Status: Not Here
Join Date: Sep 2010
Location: Canada EH!
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Posts: 589
Quote:
Originally Posted by 1stgensleeper View Post
But if you were to step up to a set of 250% overs and drop your pulse width lower yet what is to be expected? You may actually find that it could hold rail pressure and still make the same power (maybe more?). I’ve talked with members of the Firepunk team over the phone before and I was told that it’s not necessarily the size of the injector that drains the rail, it’s how long the injector stays open. I’m not sure however if the pulse width could be lowered enough to clean up the idle haze from larger injectors. A tune could most likely be created to pass visual emissions testing, the motor just has to rev and not produce a large amount of smoke. It wouldn’t be a tune you’d want to drive around much on though.
I have not drag raced the truck or put it on a dyno but I am hoping the 150% overs will be enough for my goals. I am hoping to be around 900.
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2003 QCSB cummins, DDP 12mm CP3, DDP SM 150% overs, a turbo, Firepunk diesel 48re
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