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LinkBack | Thread Tools | Display Modes |
10-04-2009, 01:58 PM
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Turbo?
I've been pulling a 40 ft gooseneck hay trailer with a 99 Cummins 5spd, and recently started using a 2001 F-350 powerstroke auto. I've noticed that when pulling 15K or 16K, or even 10K that it pulls great up until it shifts into third, then the turbo unspools, and i lose all my power, not good runnin an 8% grade... any ideas? This just normal for these, just keep it in her and get it spooled back up? Any way to remedy this situation? Is it because the auto tranny? Any pointers would be great thanks guys
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10-04-2009, 02:00 PM
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Hmm not real sure, do you have any gauges set up to tell what the boost changes from?
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10-04-2009, 02:01 PM
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The truck belongs to one of my coworkers, he just bought it about two weeks ago, so no gauges yet...
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10-04-2009, 02:03 PM
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I see. Well I mean its possible the truck may be running out of power for some reason. If he has the extra money do a few mods to it and it will climb those hills no problem. Like if he could get gauges, intake, exhaust, and a custom chip he'd be set.
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10-04-2009, 02:06 PM
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Thats what i told him, he's scared of the chip because thats how we blew up my cummins. But it was at 309,000 miles with a six gun and i blew a head on the same grade pullin 17K at 85 on 5...
 i can't figure out what happened.  Sounds like i'd be best just to keep my boot in her after the shift, cuz she comes back, just kinda slow, and by then your kinda S.O.L
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10-04-2009, 02:08 PM
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Yeah it must just be a hell of a hill.
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10-05-2009, 04:59 AM
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You could try a hot side MAP Mod....it will show more boost to the MAP sensor and thus deliver more fuel. I've done it my truck and it does make a difference on the low end.
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10-05-2009, 05:06 AM
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I've never heard of that mod. hmmmm
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10-05-2009, 05:26 PM
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CSIPSD did the write up on this...Just drill and tap the hot side of the spyder about an inch away from the IC pipe and use a new piece on 1/4" air line to connect the map to the new port..and plug the old port. This mod just gets rid of the pressure loss, due to the intercooler, that the MAP reads.
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10-05-2009, 05:32 PM
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don't mean to hijack but...anyone else know much about this hot side MAP mod?
here's that original post: A little reroute of the MAP sensor tubing... Last edited by daveyburt; 10-05-2009 at 05:38 PM.
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