First off DM,congrats on purchasing a serious fueling box. Ive been running a drag comp since they first came out. If I were you I would NOT tap the pump wire yet. There are several reasons,the most important are your transmission and fuel pressure. You need a pyrometer,and fuel pressure guage to start before you tap the wire. Second,the transmission, needs help. If you tap the wire,and run on 5x5 I can guarantee you your truck will be down,and you will looking at several thousands to get it going. Upgrade it now while its still in good shape. If you burn it up it will cost you more,circulate garbage thru your coolers,and trans,and must make it cost more in the end. I recommend DTT,IMo they are the best,but there are others that have many satisfied customers as well. I know how i am if i tap the wire Im going to use the power,once you tap the wire you cant help but use the power. Those recommending you run on 5x5 all the time,are not doing you any favors,running on 5x5 with an auto truck is very impressive feeling,but it isnt any good for the VP44 or the trans,as the truck shifts at light throttle, the comp fuels and defuels extremely aggressive,as the load changes. When the TC locks the comp will instantly fuel hard,slipping it in short order,. Light throttle aggravates this ,making it even worse on the trans,the turbo may bark under acceleration,the trans will definetley slip(if its not modded). With the comp on 5x5 you will need like 15% throttle to accelerate as fast as the truck did stock with your foot to the floor. This will destroy your auto trans if it isnt modded,even then it isnt good for it on a daily basis. Finally if you need the comp on 5x5 every day you need bigger injectors. My advice make your hp on injectors,and use the box for playing around. Run the comp no higher than level 1 or 2 daily,for max vp44 life. Ive been doing this for over 3 yrs,and have over 110K on my truck with a drag comp and stock,original vp44. As far as fuel goes, you will need a fresh,healthy lift pump and a set of bigger banjo bolts,and open up the 2 fittings between the lift pump,and fuel filter housing. With that setup you should be seeing 16psi at idle,and drop to 6-8PSI or so at WOT on 5x5. You dont want to drop below 3psi WOT,if you are you need to add a fuel system to the bombing list. Dont forget to turnbuckle the Hy35 turbo when you add the comp box,this will reduce EGTS big time. Good luck,and BOMBS AWAY
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