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915 Posts
I have been driving the truck a couple of days now since the swap and I am a little disappointed in performance. The 6.5T I took out ran about as good as the 6BT....
The problem is that there is zero low end responce. The engine does have a large unwastegated HX35, but I dont think that is the only issue. The engine will not smoke any at all if you flog it off idle; it just lazily revs up. In pulls better in 2nd and third gear once it gets a little bit of load and begins to make boost, but first gear is really gutless. It is as if the engine gets no fuel until it starts making boost. After it loads good in a high gear and makes boost it comes alive, but it takes a while for that to happen.
I know the preboost fuel can be adjusted, but I am wondering if there could be something I am missing here. It seems to me if it was a boost lag problem there would be some smoke?? The truck is a Chevy V3500 4x4 with 4.10 gears and no OD. The engine is a 190HP from a Ford Truck and is suppose to have 475lb/ft of torque at 1600RPM....no way this thing is making that much power at low RPM.
Any ideas are appreciated.
The problem is that there is zero low end responce. The engine does have a large unwastegated HX35, but I dont think that is the only issue. The engine will not smoke any at all if you flog it off idle; it just lazily revs up. In pulls better in 2nd and third gear once it gets a little bit of load and begins to make boost, but first gear is really gutless. It is as if the engine gets no fuel until it starts making boost. After it loads good in a high gear and makes boost it comes alive, but it takes a while for that to happen.
I know the preboost fuel can be adjusted, but I am wondering if there could be something I am missing here. It seems to me if it was a boost lag problem there would be some smoke?? The truck is a Chevy V3500 4x4 with 4.10 gears and no OD. The engine is a 190HP from a Ford Truck and is suppose to have 475lb/ft of torque at 1600RPM....no way this thing is making that much power at low RPM.
Any ideas are appreciated.