Jhprobst

My 06 5.4L 3v f150 king ranch super crew, is only getting 13.7sec 0-60 sparkplug have not been changed yet at 81k <might be a factor>. Addons Edge CS, K&N 57 CAI. 35'' Tires 6'' Fabtech Lift. Any ideas?

User-One

Could be a whole lot of factors from the spark plugs which need to be done at 60k, trans fluid at 60k, other fluids at 60k, maf sensor, fuel filter, fuel injectors, etc, etc.

Need more info on maintenance done to the truck, if you had since it was new, trucks specs etc.

Jhprobst

I just bought the truck, at 79000, i know for a fact tranny fluid has been changed. maf sensor is fine, fuel filter might need changed, idk about fuel injectors though. Ive ran some cleaner through the fuel a little bit.

kozal01

iTrader: (2)

That would be my guess. ^^^

Jhprobst

Makes alot of sense. I was worried it was something else.

lariat05.4

Does it still have factory gears? If so, that along with your lift and tires would do it.

dos0711

First of all it's not a Mustang second of all if you want to go faster you're going to have to change gears with that tire size

KingRanch4Life

iTrader: (2)

I have basically the same setup...

S&B CAI
Catback dual exhaust
PHP custom 87 performance/ 87 tow

13.70 is pretty slow.. I will get the numbers to you shortly...

I'd suggest changing out your fuel filter, run a can of B12 through it and clean out your throttle body.. Custom tunes...

It aint easy to get 35's rolling.. Especially not 325/50/22's

dereku

35s slow down a gas engine a lot. I bet that is a big part of it. Not to mention condition and air pressure too.

Tradesman

Holy crap that is slow. I thought my truck was slow, but that is almost like stuffing a 4-banger in our trucks. Guess I won't be doing any big wheel/tire upgrades in the future.