Throttle body spacer

[bowhunter1264]

My 03 4x4 has the 5.4 and im trying to get a little better mileage and better response on take off. Ive looked into some throttle body spacers with a cold air exhaust. Not sure about either. I havent found a cold air kit anyone know where to look, or have advise on a spacer?

 

[BIG GREEN FORD]

I have a throttle body spacer it works for me
Cold air intake is bs its really not cold your engine bay is HOT.
DROP a k&n filter and do a silincer delete and gots mod and you will be set

 

[69Hcode]

Look into e-fans. They will help the take off quite a bit. Feels about like the difference to have the A/C on Vs. off. A tuner will make a lot of difference too. I didn't notice much difference with the gotts mod but I did it the day after I got the truck. I put a spacer in an 88 F150 and it made a noticeable difference down low. I don't have experience on a mod motor with one yet. Pepboys out here stocks the spacers but can get them cheaper on ebay if you want to wait.

 

[GAINMOB]

I have a throttle body spacer it works for me
Cold air intake is bs its really not cold your engine bay is HOT.
DROP a k&n filter and do a silincer delete and gots mod and you will be set

debateable if the TB actually works...most arent a fan of it cause it only increases the gap...a few like it...most say wasted $$$...idk...but the CAI as big green said will not be cold air...i have found that it improved throttle response and i gained a couple mpgs...combine that with exhaust and programmer for the best bang for performance in mpg increase...

Look into e-fans. They will help the take off quite a bit. Feels about like the difference to have the A/C on Vs. off. A tuner will make a lot of difference too. I didn't notice much difference with the gotts mod but I did it the day after I got the truck. I put a spacer in an 88 F150 and it made a noticeable difference down low. I don't have experience on a mod motor with one yet. Pepboys out here stocks the spacers but can get them cheaper on ebay if you want to wait.

the e-fan will help too...next on my to do list

 

[AbelNavyvet]

I have to disagree with you big green I have the K&N CAI on my 5.4 and the performance compared to the stock system is a big difference. when I installed it I felt a difference im thinking about the Throttle body spacer, but Im not to sure that i'm going to get it. WHAT I REALLY WANT IS A INTAKE MANIFOLD!!!! DOES ANYONE KNOW IF EDELBROCK MAKES THEM FOR THE 5.4?

 

[BIG GREEN FORD]

I have to disagree with you big green I have the K&N CAI on my 5.4 and the performance compared to the stock system is a big difference. when I installed it I felt a difference im thinking about the Throttle body spacer, but Im not to sure that i'm going to get it. WHAT I REALLY WANT IS A INTAKE MANIFOLD!!!! DOES ANYONE KNOW IF EDELBROCK MAKES THEM FOR THE 5.4?

I might have stated wrong, it will give you more power, but it should not be called a cold air intake... Your making your engine suck up hot air from your engine bay.

 

[AbelNavyvet]

yeah true the bay is hot but your truck will suck up more air. the system has this black box that protects it from the rest of the engine bay. I mean I get what your saying but I feel a difference in performance wise with the K&N CAI than having the stock air intake.

 

[FordandPolaris]

yeah true the bay is hot but your truck will suck up more air. the system has this black box that protects it from the rest of the engine bay. I mean I get what your saying but I feel a difference in performance wise with the K&N CAI than having the stock air intake.

I also felt a difference doing a k&n filter/silencer delete/gotts mod, and I get cold fender air

The restrictor in the system is the fender hole. That's why cai's are effective, but widening the opening with the gotts mod gives the engine all the air it ever needs for a stock application and is cheaper. Both methods work fine though. Throttle body spacer on the other hand....

 

[AbelNavyvet]

Fordandpolaris I don't understand can you be more specific? what is a silencer delete/Gott mods?

 

[FordandPolaris]

Silencer delete: http://www.expeditionforum.com/f39/how-remove-air-intake-silencer-1st-gen-16935/

Gott's Mod: http://www.expeditionforum.com/f41/gotts-mod-**pics**-15284/

You can google gotts mod and see write-ups for your particular model truck, its all about the same idea though.

 

[AbelNavyvet]

OH OK I see what you mean now. on that I don't mean to be mean but wont the Expedition get more air with a K&N CAI system? I mean with a K&N you remove all the stock system... what you think? what I'm trying to find is a high performance intake manifold or high performance heads....

 

[FordandPolaris]

OH OK I see what you mean now. on that I don't mean to be mean but wont the Expedition get more air with a K&N CAI system? I mean with a K&N you remove all the stock system... what you think? what I'm trying to find is a high performance intake manifold or high performance heads....

I whole heartedly agree with you that you will get more air out of a CAI, but the issue is that the engine spends the majority of its life under 4000rpms and simply doesn't need the air. You can put a big 12inch intake pipe right out the grille but the MAF will only open the TB wide enough for the air it needs at any given time.

This all assumes a stock tune and stock parts. If you have a custom tune or high compression, more air can be used to make a more potent fuel mixture and therefore more power.

 

[GAINMOB]

^^yulp...thats the limiting factor...i've granelli MAFs for up to $500 for performance

 

[01yellerCobra]

I might have stated wrong, it will give you more power, but it should not be called a cold air intake... Your making your engine suck up hot air from your engine bay.

I'm going to say that also depends on the CAI. I have a Spectre for mine and it has a box that seals against the hood to keep engine heat out of the filter. I haven't done any datalogs to see what IAT's are like between stock and the Spectre. But the Spectre is pulling air from the fenderwell just like stock.

Something I want to add on CAI vs stock or the Gotts mod... A few years ago there was a big debate on the Mustang forums about CAI's. Some people said the air filter had to be in the fender well for best results while others said it didn't matter if it was in the fender well or in the engine bay. A couple guys set up thermocouples in the engine bay and in the fender well to monitor temps. I don't remember the exact results, but when the car was moving there was a one or two degree difference between the two spots. So basically it didn't really matter where the filter was placed. I don't remember what the temps were like at idle, but we don't spend a lot of time idling. It's not like the air in the engine compartment is stagnant while the vehicle is in motion.

OH OK I see what you mean now. on that I don't mean to be mean but wont the Expedition get more air with a K&N CAI system? I mean with a K&N you remove all the stock system... what you think? what I'm trying to find is a high performance intake manifold or high performance heads....

The only aftermarket intake I know of for the 3V heads is from JPC and only fits the 4.6. The 5.4 is wider. And the intake moves the RPM range up to a point that's useless in a truck that needs torque. As for heads your choices are FRPP ported heads or getting your current heads ported. But unless you're trying to build a street beast, it's pointless and expensive. And there is a point of diminishing returns. More airflow needs more fuel. More fuel means lower MPG's.

 

[AbelNavyvet]

01YellerCobra I was trying to build a racing street beast but there is NO aftermarket parts for an 06 5.4 2nd gen Expedition which pissed me off after all the mods I did. So Now gonna build a lift monster.

 

[AbelNavyvet]

you wouldn't know the part number for the FRPP ported heads would you?

 

[01yellerCobra]

4.6L/5.4L CNC PORTED 3V RH CYLINDER HEAD - ASSEMBLED | Part Details for M-6049-N3VPA* | Ford Racing Performance Parts

If you're looking for a beast I'd run those with an E-Force blower and call it a day.

 

[AbelNavyvet]

Nice going to check them out right now bro thank you for your knowledge!!!!

 

[AggieExpo]

Well I added a K&N air filter drop in and i noticed a difference, I then added Borla Stainless headers and noticed a big difference. I then installed the Borla Exhaust and that also made a difference. But the most notable difference i've seen is with the Brisk spark plugs and Weapon X Coils. I've read all the reviews that these coils dont work as good as OEM but i'll tell you there is a huge difference in the throttle response. My Truck feels like a whole new beast since i put those in. But that is my 2c. however as far as the gas mileage i still get 14.5 MPG. So not a big MPG saving mods. Will get an SCT livewire next.

 

[01yellerCobra]

Well I added a K&N air filter drop in and i noticed a difference, I then added Borla Stainless headers and noticed a big difference. I then installed the Borla Exhaust and that also made a difference. But the most notable difference i've seen is with the Brisk spark plugs and Weapon X Coils. I've read all the reviews that these coils dont work as good as OEM but i'll tell you there is a huge difference in the throttle response. My Truck feels like a whole new beast since i put those in. But that is my 2c. however as far as the gas mileage i still get 14.5 MPG. So not a big MPG saving mods. Will get an SCT livewire next.

What kind of shape were the old plugs un and how many miles were on the old COPs?