If you are supercharged or turbocharged with stock internals please post here and specify if you have a supercharger or turbocharger, how much psi your running and if you tuned with sct, diablo, sniper or any other tuning. oh and please specify if your running a bigger fuel pump, bigger injectors and bigger maf or an FMU. and also what motor you have...

Just trying to see how many out there have forced induction on a stock block.

I'm finally getting my Turbocharged 2003 4.2l v6 f150 dynotuned tomorrow and its scaring the sh*t out of me...

I've got 56k miles on my 2003, its got 39lb injectors, 90mm maf, 255lph walbro fuel pump, blowoff valve is vent to atmosphere and the maf is blowthru.
I've got a boost/vacuum gauge, fuel pressure gauge, and wideband gauge.

 

8psi is the limit on stock internals if you want it to last...

 

Procharged, 9lbs, 42lbs injects, 90mm MAF, 255 FP, SCT tuned

 

im not going over 8psi.

I think everything will turn out okay, the truck has a base tune from vmptuning at the moment, the truck idles fine its driveable, but its only been moved in and around the shop.

new headers go on today and i need to fill it up with 93 octane.

 

Procharger P1-SC 12 lbs pulley. 42# injectors 255L/Hr pump. 3 core intercooler. Stock MAF. Moved the IAT sensor in front of the TB to pick up air charge temps after intercooler. Patch work tune, could not get 90mm MAF to work. Waiting for Troyer with Xcal & 90mm MAF.

JMC

 

Roush Kit mods in sig

 

great! please keep the post coming

glad to know theres lots out there that havent upgrade rods and everything else.

 

Stock 01 5.4 with 01 lightning manifold, injectors, SC, oversized Bosch 255 lph fuel pump, programmed with SCT Xcalibrator 2

10 PSIG boost

150K on the motor - 35K with the SC installed. Daily Driver

Lean conditions kill blown motors. Make sure you get a wide band air/fuel check during your dyno runs.

 

It's all about the tune. Detonation is the killer.
I have been running from 8 - 13 psi for two years, with the usual fuel upgrades and custom tuning.

 

great good to know.

this turbocharged f150 is my daily driver as well. i did a lot of homework before going through with it.. but im still worried about it.

anyone know what should the wideband a/f read?

 

RoushCharger kit here...supercharger, intercooler, plugs, PCM tune all per Roush specs. Boost is probably 4-6#, max. I do not have a boost gauge. Probably like 4#, I am guessing. Lot's o' fun, though. 2,000 mile thus far since install, and no worries at all.

CW

 

Driving around under light to moderate throttle ( closed loop ) you should see mid 14's. On the gas and under boost you should see the a/f's transition to mid 11's ( open loop ) - this can occur as late as 3,500 rpms in a run. If you are seeing anything more than 12, back off, it is too lean and more fuel is needed.

 

that is weird okay so under light load its okay to be at 14 but if im in boost it should never go over 12 and should stay around 11.5?

 

Yep, when you start increasing the cylinder pressure you want more fuel. Enough good fuel will save your engine. I always tuned my stuff for 11.8 A/F. I will most likely tune this truck for closer to 11.5 A/F when I get my S/C. Rich is WAY better than lean when you are boosting a naturally aspirated motor.

 

2000 5.4L 2V 56k miles.
ATI ProCharger
12# pulley (13 - 14 psig nominal)
3-core FMIC
42# injectors
90mm MAF
ATI inline fuel pump
SCT tuned