Tuning questions
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Joined: Aug 2009
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Tuning questions
Ok, so as Im gearing up for a build on my truck, I want to know some feasabilty/parts needed for a motor build. Bear with me here, im a GM guy just getting associated with the mod motor. I know very little about building these motors.
Truck: 03 FX4 SCrew
Needs: Trailer towing, and a little more **** and get on the road. Id rather have a flat tq curve from 2000rpm-5000rpm than crazy hp numbers
Projected build:
5.4 sourced from an early 2000's Navigator (want the dohc heads) with a lightning sourced supercharger.
Questions:
Computer tuning.- Laptop based programs? (Im a gm guy so im familar with LS1 Edit)
Injector flow rates? I would assume the stock lightning injectors would supply adequate fueling for this farily mild build.
How much boost will a stock bottom end hold? I dont want to run more than 8-10psi for longevity purposes. Im not building a drag truck here.
Transmission? I really dont have much faith in the stock trans behind this setup. Better trans out there?
Any point to this? Would a set of cams, some tuning, a set of underdrive pulleys and my re-worked exhaust give me what im looking for at a fraction of the price.
Truck: 03 FX4 SCrew
Needs: Trailer towing, and a little more **** and get on the road. Id rather have a flat tq curve from 2000rpm-5000rpm than crazy hp numbers
Projected build:
5.4 sourced from an early 2000's Navigator (want the dohc heads) with a lightning sourced supercharger.
Questions:
Computer tuning.- Laptop based programs? (Im a gm guy so im familar with LS1 Edit)
Injector flow rates? I would assume the stock lightning injectors would supply adequate fueling for this farily mild build.
How much boost will a stock bottom end hold? I dont want to run more than 8-10psi for longevity purposes. Im not building a drag truck here.
Transmission? I really dont have much faith in the stock trans behind this setup. Better trans out there?
Any point to this? Would a set of cams, some tuning, a set of underdrive pulleys and my re-worked exhaust give me what im looking for at a fraction of the price.
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
JL
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
JL
