Notices
1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage
Sponsored by:
Sponsored by: Auxito

what size

Thread Tools
 
Search this Thread
 
Old Apr 30, 2007 | 09:43 PM
  #1  
king ranch 5.4's Avatar
king ranch 5.4
Thread Starter
|
New User
Joined: Apr 2007
Posts: 2
Likes: 0
From: phoenix arizona
Question what size

iam planning on putting a after market throttle body on my 2002 king ranch its a 5.4, but i dont know the size of the stock tb.im guessin a 7o mm and if i get a bigger tb can i hone out the plastic manifold.
 
Reply
Old Apr 30, 2007 | 09:56 PM
  #2  
Ultramagdan's Avatar
Ultramagdan
Post Fiend
25 Year Member
Joined: Feb 2000
Posts: 11,496
Likes: 6
From: Kansas
I do not recommend your course of action. If you have to get a TB, do not hone out the plastic going to it.
 
Reply
Old May 1, 2007 | 03:49 AM
  #3  
LxMan1's Avatar
LxMan1
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Mine measured 68mm. I believe that a 75mm will fit ok, I don't know if you will gain much from it though.
 
Reply
Old May 1, 2007 | 09:06 AM
  #4  
Johnny Langton's Avatar
Johnny Langton
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
Originally Posted by king ranch 5.4
iam planning on putting a after market throttle body on my 2002 king ranch its a 5.4, but i dont know the size of the stock tb.im guessin a 7o mm and if i get a bigger tb can i hone out the plastic manifold.
Don't waste your money-there's no gains to be had from a larger throttle body-none. The intake manifold is the restricitve piece on your 5.4L,not the throttle body.
JL
 
Reply
Old May 1, 2007 | 10:49 AM
  #5  
98infinity's Avatar
98infinity
Senior User
Joined: Sep 2006
Posts: 160
Likes: 0
do they have aftermarket intake manifolds for sale?
 
Reply
Old May 1, 2007 | 11:20 AM
  #6  
Johnny Langton's Avatar
Johnny Langton
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
Originally Posted by 98infinity
do they have aftermarket intake manifolds for sale?
No-not a 5.4L 2V.
JL
 
Reply
Old May 1, 2007 | 08:50 PM
  #7  
king ranch 5.4's Avatar
king ranch 5.4
Thread Starter
|
New User
Joined: Apr 2007
Posts: 2
Likes: 0
From: phoenix arizona
i alreadyhave a k@n intake system and flowmaster exhaust.i was hopein a bigger throttle body would help better.plus im goin to put on aset of headers.
 
Reply
Old May 1, 2007 | 09:00 PM
  #8  
Johnny Langton's Avatar
Johnny Langton
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
Originally Posted by king ranch 5.4
i alreadyhave a k@n intake system and flowmaster exhaust.i was hopein a bigger throttle body would help better.plus im goin to put on aset of headers.
To be honest-you've gained very little HP with the mods you have listed. The intake manifold is very restrictive-it's like this to make cylinder filling efficient at low RPM and this cylinder filling makes torque. Problem with this...if you enhance low RPM cylinder fill-you hurt high RPM filling-the air goes sonic as it travels through the manifold and that's where airflow stalls. The 5.4L 2V is a good engine,but it's not a HP maker unless you add forced induction.The intake manifold and cylinder heads are the cork on the 5.4L. The 2V cylinder head is barely sufficient to fill a 4.6L,a 5.4L's larger displacement shows it's inadequacy even more.
JL
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old May 2, 2007 | 07:49 AM
  #9  
bla1879's Avatar
bla1879
Fleet Mechanic
Joined: Mar 2007
Posts: 1,398
Likes: 1
From: Simi Valley, CA
i have heard of people putting the lightning manifold onto the non-lightning 5.4L that will get you some serious hp increases but thats because they usually transfer the supercharger that comes with the lightning manifold right? strictly speaking, is the lightning manifold any different than the non lightning (besides obviously the fact that the lightning has a super on top)? or are there differneces in the basic manifold designs?
 
Reply
Old May 2, 2007 | 08:44 AM
  #10  
Johnny Langton's Avatar
Johnny Langton
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
Originally Posted by bla1879
i have heard of people putting the lightning manifold onto the non-lightning 5.4L that will get you some serious hp increases but thats because they usually transfer the supercharger that comes with the lightning manifold right? strictly speaking, is the lightning manifold any different than the non lightning (besides obviously the fact that the lightning has a super on top)? or are there differneces in the basic manifold designs?
The Lightning manifold has an intercooler in it,and if you remove it-the plenum volume would be huge,and unsuitable for N/A use.The runners are too short as well.
JL
 
Reply
Old May 2, 2007 | 06:46 PM
  #11  
bla1879's Avatar
bla1879
Fleet Mechanic
Joined: Mar 2007
Posts: 1,398
Likes: 1
From: Simi Valley, CA
oh ok...idk what a plenum volume is or runners are, but ill take your word on it cuz you deffinetly know more than me!
 
Reply
Old May 2, 2007 | 07:20 PM
  #12  
LxMan1's Avatar
LxMan1
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
Too large and too short, it would make no torque and the power band would be way up in the rpm range.
 
Reply
Old May 2, 2007 | 08:33 PM
  #13  
Johnny Langton's Avatar
Johnny Langton
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
Originally Posted by LxMan1
the power band would be way up in the rpm range.
And that's where the 2V head cannot flow enough air to fill a 5.4L.
JL
 
Reply




All times are GMT -5. The time now is 07:55 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE