Advice on 4.2L V6 2003 F150 Sport
#1
Advice on 4.2L V6 2003 F150 Sport
Hey guys,
So finally after 10 years Im finally in a position to give my truck the attention it deserved. I have already started by changing the rims to 20 inch for looks, as well as purchasing a programmer for unlocking the unknown power in the small yet powerful V6. I am not wondering what should be next. I want to achieve max amount of performance possible without doing drastic steps IE (complete overhaul of pistons, valves, ect). I have some ideas people have thrown my way but am looking for additional opinions. Some of the ideas are:
Cold Air Intake
Throttle Body Spacer
Larger Throttle
E Fan setup
Flip kit for belt/pully
Lowered Suspension for leveling effect (not slammed, just remove gap between fender and tire)
Lighter Driveshaft?
Changing rear gears from 3.55 to 4.10
Possible upgrade of transmission (5 speed)
Upgraded clutch
Drilled & Slotted Rotors
Upgrade shocks
Any advice on any of these would be appreciated.
So finally after 10 years Im finally in a position to give my truck the attention it deserved. I have already started by changing the rims to 20 inch for looks, as well as purchasing a programmer for unlocking the unknown power in the small yet powerful V6. I am not wondering what should be next. I want to achieve max amount of performance possible without doing drastic steps IE (complete overhaul of pistons, valves, ect). I have some ideas people have thrown my way but am looking for additional opinions. Some of the ideas are:
Cold Air Intake
Throttle Body Spacer
Larger Throttle
E Fan setup
Flip kit for belt/pully
Lowered Suspension for leveling effect (not slammed, just remove gap between fender and tire)
Lighter Driveshaft?
Changing rear gears from 3.55 to 4.10
Possible upgrade of transmission (5 speed)
Upgraded clutch
Drilled & Slotted Rotors
Upgrade shocks
Any advice on any of these would be appreciated.
#2
Do a Gotts mod to the STOCK intake, don't even THINK about a TB spacer, go ahead with underdrive pulleys and e-fans, put a decent exhaust on it, leave the driveshaft and transmission alone, change the gears to 4.10, leave the OEM clutch alone, and get some CUSTOM TUNES for that programmer you just bought.
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#12
turbo is a seriously great mod for a 4.2 and there are quite a few running out there with 300+HP....anything else other than gutting the motor, you only see maybe 30 hp increase with tuner, full exhaust(shorty headers are a waste, long tubes are difficult but worth it), and cam (and porting/polishing heads if you get to that)....all classically great mods.
Pulleys do very liitle but they are a mod that helps at higher RPMs. E-Fan is a great mod if you upgrade to enough CFM. Throttle body spacer does nothing for 4.2s. If you just have to have a CAI(they definately make a motor sound better), get one with a divider so you are drawing cold air away from the motor.
Pulleys do very liitle but they are a mod that helps at higher RPMs. E-Fan is a great mod if you upgrade to enough CFM. Throttle body spacer does nothing for 4.2s. If you just have to have a CAI(they definately make a motor sound better), get one with a divider so you are drawing cold air away from the motor.
#13
Programer and intake mod
What was the programer you purchased I've been searching and can't find much worth buying and what il exactly is that intake mod
#14
TODAY the best programmer to get is a SCT X4 with CUSTOM tunes. Being that you posted in this dead thread instead of starting your own thread, I assume you have a 2003 F-150 with a 4.2?
https://www.f150online.com/forums/ar...3-f-150-a.html
https://www.f150online.com/forums/ar...3-f-150-a.html
#15
Yea sorry got a little excited once I found a forum that actually was talking about the 4.2 everything I was finding previous to this forum where v8 and yes I have a 01 f150 v6 4.2 trying to find some mods to do with out tripping a check engine light and just to learn what all I can do and thanks for the info on the pro framer be open to any more suggestions