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gmccall 05-08-2005, 11:36 AM Okay, I keep reading the new posts about trucks running in the mid to low 12s with no lift pump or N20. I thought we needed a lift pump to do that. I can't get my tunes high enough without bursting to get in the 12:90s. I have ordered a lift pump. Do I need a new tuner ? :confused: marksrt43 05-08-2005, 04:28 PM from what i have seen on this forum, a lift pump really helps allot..... hope it cures your bursting ..... happy sub 12's:) RUNNINHORN 05-08-2005, 05:19 PM what are some examples of good lift pumps? ChrisF 05-08-2005, 05:22 PM I think Kennedy is working on one right now? not sure how much or when it will be done... From what I read should be soon marksrt43 05-08-2005, 05:22 PM I saw one that had a built in fuel filter that was all mounted as one unit infront of the left rear wheel..... nice setup.... not sure who made it.... ChrisF 05-08-2005, 05:24 PM The F.A.S.S. system it in my mind the best I have seen... only it cost around 600 bucks, but it has the filter and the some type of air remover on it. GMC-2002-Dmax 05-08-2005, 06:13 PM I would use the search feature and read up on that FASS System.........:eek: If you like driving around with 1/2 to a Full tank that is..........:rolleyes: If not then don't buy it................you'll have problems..........;) T:D NY . . . dieselrcr337 05-08-2005, 06:34 PM I would use the search feature and read up on that FASS System.........:eek: If you like driving around with 1/2 to a Full tank that is..........:rolleyes: If not then don't buy it................you'll have problems..........;) T:D NY . . .I got it, I do have it on a switch where i turn it off when im on the street or my tank level is low(becuase of what i have heard). I have forgotten to turn it off before. all the way under 1/4 tank. no problems. i think it depends on the truck.. or where the return is at. the closer to the bottom of the filler neck the better. bigd 05-08-2005, 07:01 PM have had none of these issues with the fass either , have a friend who runs the fass who hooked up a fuel pressure guage in his cab to watch his fuel pressure while tank was low, he has had no issues so far that i know of, seems like more theories then hard facts , i personally still burst with edge in level 4 no matter the fuel tank level, and would like to at some time install a carter pump with a trippen pickup to see if the fass is in fact holding me back. duramaxdiesel 05-08-2005, 10:20 PM My truck bursts pretty bad when I run the 1/4. I'm installing my lift pump this week to see if it will cure the problem. My best 1/4 time was 13.2 on No.2 alone. Can't wait to see how my truck will run with a set of twins installed. marksrt43 05-08-2005, 10:32 PM I would use the search feature and read up on that FASS System.........:eek: If you like driving around with 1/2 to a Full tank that is..........:rolleyes: If not then don't buy it................you'll have problems..........;) T:D NY . . . GMC, which one do you recommend that has no problems? ratlover 05-09-2005, 03:58 PM Pople have used Superdiesels stuff, the FM100's, kennedy is making one, steve cole(tts) has a few options. Some use holley pumps.......a search on lift pumps will generate enough reading to keep you busy for awhile. There are a ton of different options. I like the FM100 solution personaly for me, TTS's pumps wernt done when I needed pumps otherwise I probably would go that wroute(I think they are done now???). tophog 05-10-2005, 01:13 AM I'm running kind of a bastard mix ... a single FM100 full time and a Carter 4600 via switch in cab. Both pumps are in parallel ...carter gets unfiltered fuel but I figure it should last awhile as little as it gets used ...and if the FM100 fails the Carter will get me home. http://dieselplace.com/forum/attachment.php?attachmentid=4013 I heard the TTS big "HP" lift pump setup wouldn't be ready until late summer. | ||