What is the differance in intakes?
Thread Starter
|
Posting Guru
Joined: Nov 2006
Posts: 1,231
Likes: 0
From: Riverview, FL
What is the differance in intakes?
I am getting ready to depoy out for a while and I am getting my list of parts together to build my 300 when I get back. I am trying to figure out the differance between the Offy C, Offy DP or Clifford. I know with the Offy's you will need the heater spacer for the carb and the Clifford has it built in, other than that what is better and why?
Cargo Master
Joined: Sep 2007
Posts: 2,095
Likes: 2
From: Wahpeton ND
The offy C is a single plane intake that is designed for a higher operating RPM.
The DP is a dual plane with small primary runners to boost intake velocity and thering efficency. It has larger secondary runners for greater airflow under hard throttle.
The clifford is a water heated single plane. I think the water heat would give one the best result especialy during the colder months. Other users will know more then I.
The DP is a dual plane with small primary runners to boost intake velocity and thering efficency. It has larger secondary runners for greater airflow under hard throttle.
The clifford is a water heated single plane. I think the water heat would give one the best result especialy during the colder months. Other users will know more then I.
Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
X2 what Flip said. The C manifolds supposedly more geared for racing. I have spoken with guys who could see performance drop and mph go up with the DP (dual port) Offies, after using a C.
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
I have an Offy C on one of my 300s and an Offy DP on the other.
I can definitely tell the difference between the two.
For starters, the 300 with the C has a 600 cfm carb, 3.55 rear, headers, no cats (yet), etc.
The 300 with the DP has a 390cfm carb, 3.00 rear, EFI exhaust, and a cat.
The DP version, even with higher gearing and a more restrictive exhaust, has a lot more snap in the throttle.
The C version doesn't have that low end torque feel, but has VERY smooth power all through the RPM band, and feels like it could rev forever.
I'm not sure which I like better yet, but there definitely is a performance difference between the two.
I can definitely tell the difference between the two.
For starters, the 300 with the C has a 600 cfm carb, 3.55 rear, headers, no cats (yet), etc.
The 300 with the DP has a 390cfm carb, 3.00 rear, EFI exhaust, and a cat.
The DP version, even with higher gearing and a more restrictive exhaust, has a lot more snap in the throttle.
The C version doesn't have that low end torque feel, but has VERY smooth power all through the RPM band, and feels like it could rev forever.
I'm not sure which I like better yet, but there definitely is a performance difference between the two.
Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
For starters, the 300 with the C has a 600 cfm carb, 3.55 rear, headers, no cats (yet), etc.
The 300 with the DP has a 390cfm carb, 3.00 rear, EFI exhaust, and a cat.
The DP version, even with lower gearing ...
"Uhhhh, 3.55 gears are lower than 3.00's.
The 300 with the DP has a 390cfm carb, 3.00 rear, EFI exhaust, and a cat.
The DP version, even with lower gearing ...
"Uhhhh, 3.55 gears are lower than 3.00's.
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
Trending Topics
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
Some have used a 4-holes pacer on the C to get a bit more columnar flow through the carb and raise the carb away from the cavernous opening in the manifold which can cause turbulence at the base of the carb and restore a bit of lower speed snap.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Posting Guru
Joined: Nov 2006
Posts: 1,231
Likes: 0
From: Riverview, FL
Ohhhh, such a choice. I am planning on using the truck for an off road play toy. I am thinking the dp would be the best then. I was just leaning towards the Clifford one since it had the water jacket built in...just to make it easier.
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
Come to think of it, it does have a 4 hole spacer underneath it.
Junior User
Joined: Jan 2009
Posts: 93
Likes: 0
From: Knoxville, TN
I was leaning tward the dp, but summit was telling me no need for a heated spacer.
live in east tn. Thoughts???
Will be using efi exhaust, and a 4 barrel carb( not sure on brand yet ) on my 300 76 2wd
live in east tn. Thoughts???
Will be using efi exhaust, and a 4 barrel carb( not sure on brand yet ) on my 300 76 2wd
Thread
Thread Starter
Forum
Replies
Last Post
vntgtrk
1948 - 1956 F1, F100 & Larger F-Series Trucks
5
Oct 7, 2012 12:42 PM