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Depends on how you drive.
More power takes more fuel to produce it.
So if you go blasting up the hills like they were not there, using all the extra power the engine will be able to produce, your mileage will go down.
If you drive it like it runs now before the turbo install, your mileage will go up.
With mine I drive at or above the speed limit every where I go, loaded or empty.
direct drive 4 speed and 3.55 gears with 285/75-16 tires average mileage for the year so far, 11.75 MPG
The E4OD with overdrive will do better than that, but you also should upgrade the tranny cooler to deal with the extra heat it will produce.
the "factory" turbo setup is a detuned ats system. the turbine housing is made to not make as much boost as the aftermarket ats system, but the housing is available for purchase. A turbo system WILL make a considerable difference in the operation of the truck. Anything you can do to make the engine breathe better and freer the better off you are. And like Dave stated, depending on how "racey" you get as to the fuel mileage.
Now when i put this on what do i need to do to the fuel setting? Do i turn up the IP and if so how much? And where do i find a place for an oil supply?
Thanks, Jeremy
my milage is at 14-15 almost all the time but i don't stand on it all the time and drive the speed limit the stacks i put on increased the milage by 1 i figure air intake and down pipe, ect. should help even more but i need the money to do that and me being poor college student it will be awhile before that gets done
The ATS system oil supply comes out of the block at the current oil pressure sending unit location. The sending unit is relocated to the top of the turbo, there is a pipe plug installed where it goes.
You need to turn the fuel up about 2 flats of the fuel screw, you can fine tune it after it is installed by watching the amount of black smoke it puts out at wide open under a load.
The ATS outlet flange and 3" down pipe do wake the turbo up, but there is not much room for the downpipe. I installed a 2" body lift to make lots of room for mine, it really only needed to be a 1" lift.
All the way to the back of the intake manifold left of center. It is actually screwed into the block just in front of the bell housing. Remove the air cleaner and get on top of the motor, you will see it, it has one wire hooked to the top end of it..
The brass Tee is the new location for the for the oil pressure sending unit and also where I tee'd in for the mechanical oil pressure gauge.
The sending unit is the brass looking canister. The grey line above it and to the left is the oil supply line to the turbo.
In the picture you can also see the throttle cable where it comes through the firewall on my 86. Things will be a little tighter on your truck, I have a 2" body lift on my cab to make room for the downpipe.
Last edited by Dave Sponaugle; Sep 26, 2005 at 08:01 PM.
Ok thanks alot i think i have all the info i need to know now. Im goin by pictures because i bought a used system off a 1993 and sont have directions but the one on the ATS site should do ok. I should be in tomorrow or wednesday im excied to know how its gunna drive with it.
Thanks, Jeremy