How do tuners work??? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 4 Old 02-23-2011, 08:10 AM Thread Starter
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How do tuners work???

First, let me say this is not a post against tuners. I am planning on getting the Mini Maxx and DPF/CAT delete very soon. But I am curious as to what a tuner changes in the truck to get the MPG/HP gains? How does it do it without damaging the motor and other components of the truck since the vehicle was designed (by people that get paid much more than me) to work within certain specs? If it is perfectly safe and so easy, why would the factory not do it, at least as an option? Again, not bashing performance tuners.

'08 250 Lariat 4x4 c/c s/b
H&S Mini Max
Cat/dpf delete
S&B Cold Air
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post #2 of 4 Old 02-23-2011, 10:05 AM
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Changes timing and Fuel mapping I believe. Heres a bump!


Mods so far!!

Smoked Recon lights
Predator8 wheels
Toyo open country tires
Dpf/Doc delete
H&S tuned
S&B cold air intake
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post #3 of 4 Old 02-23-2011, 10:14 AM

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Depends on which tuner you speak of.

Most of the replace the stock program on the truck with another program

These other programs utilize different fuel mapping among other things as well as disable emissions equipment.

Disabling emissions equipment alone generates better fuel economy

2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
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post #4 of 4 Old 02-23-2011, 10:32 AM
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Interesting indeed

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My Truck and my Maine Coon

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