170 to 200hp hp goal - Page 4 - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus First Generation > DURATEC Performance (2003-2007)

DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 11-24-2012, 07:05 PM   #31
Outlaw5.0
Focus Enthusiast
 
Join Date: Mar 2011
Fan#: 84300
Location: Canton, MI
What I Drive: 2011 Ford Focus SES

Posts: 413
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 1 Outlaw5.0 Good Standing Member
Buy-Sell-Trade Rating: (0)
It all comes down to airflow, if the 2.3 has the required airflow for 8000 rpms, it will make more power compared to the 2.0.
Outlaw5.0 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-24-2012, 08:04 PM   #32
koke'sfocus
Focus Addict
 
koke'sfocus's Avatar
 
Join Date: Oct 2009
Fan#: 69779
Location: el paso, TX
What I Drive: 05 silver st

Posts: 759
Points 4,267, Level 41
Points: 4,267, Level: 41 Points: 4,267, Level: 41 Points: 4,267, Level: 41
Level Up 59% Completed
Level up: 59% Level up: 59% Level up: 59%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 1 koke'sfocus Good Standing Member
Buy-Sell-Trade Rating: (6)
Yeah i have a st intake f2 header 3" exhaust cossie manifold and its by far quicker than my old 08 with intake header exhaust
Posted via FF Mobile
koke'sfocus is offline  
    Reply With Quote Quick reply to this message
Old 11-24-2012, 09:47 PM   #33
turbosvtfocus04
Focus Enthusiast
 
turbosvtfocus04's Avatar
 
Join Date: Jul 2012
Fan#: 100806
Location: Yorkville, IL
What I Drive: 2004 black svt

Posts: 197
Points 233, Level 4
Points: 233, Level: 4 Points: 233, Level: 4 Points: 233, Level: 4
Level Up 66% Completed
Level up: 66% Level up: 66% Level up: 66%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 turbosvtfocus04 Good Standing Member
Buy-Sell-Trade Rating: (1)
Stroking a motor will increase torque and but can also wear quicker since the piston has to travel farther up and down in the cylinder. It also can't rev as high either. There's advantages and disadvantages when stroking a motor. It all comes down to what you are trying to do, you want torque, then stroking it will be good. If you want high revving then 2.0 motor. Idk if anyone has done a comparison between both motors fully built or not I haven't looked. But everything plays into a effect.
turbosvtfocus04 is offline  
    Reply With Quote Quick reply to this message
Old 11-24-2012, 09:56 PM   #34
felixthecat
w/ my magic bag
 
felixthecat's Avatar
 
Join Date: Nov 2010
Fan#: 80663
Location: Renton, WA
What I Drive: '05 Silver Sport Technologies

Posts: 10,924
Points 12,201, Level 72
Points: 12,201, Level: 72 Points: 12,201, Level: 72 Points: 12,201, Level: 72
Level Up 38% Completed
Level up: 38% Level up: 38% Level up: 38%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 65 felixthecat Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by turbosvtfocus04 View Post
Stroking a motor will increase torque and but can also wear quicker since the piston has to travel farther up and down in the cylinder. It also can't rev as high either. There's advantages and disadvantages when stroking a motor. It all comes down to what you are trying to do, you want torque, then stroking it will be good. If you want high revving then 2.0 motor. Idk if anyone has done a comparison between both motors fully built or not I haven't looked. But everything plays into a effect.
I agree w/ you. ^^^^^^^^^^^^^^
Pretty much comes down to what you want. If you want to wind the piss out of it= short stroke. For grunt you can beat displacement for a strong DD. BB Chevy's have a cruddy rod to stroke ratio, but they go. The 23 has a cruddy rod to stroke ratio, but it works great for a strong DD & you can't beat the head that it has. It does the job for me.
__________________
Introduce Mr. Torsen to the mixBigger brakes then you- D23 crew- D-Tech- Sedan Revolution= #131
felixthecat is online now  
    Reply With Quote Quick reply to this message
Old 11-24-2012, 10:02 PM   #35
turbosvtfocus04
Focus Enthusiast
 
turbosvtfocus04's Avatar
 
Join Date: Jul 2012
Fan#: 100806
Location: Yorkville, IL
What I Drive: 2004 black svt

Posts: 197
Points 233, Level 4
Points: 233, Level: 4 Points: 233, Level: 4 Points: 233, Level: 4
Level Up 66% Completed
Level up: 66% Level up: 66% Level up: 66%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 turbosvtfocus04 Good Standing Member
Buy-Sell-Trade Rating: (1)
Idk I haven't seen what the head looks like. The only head I have seen is my svtf head. I ported my own head but I haven't got around to throwing it on a flow bench.
turbosvtfocus04 is offline  
    Reply With Quote Quick reply to this message
Old 11-25-2012, 11:56 AM   #36
Outlaw5.0
Focus Enthusiast
 
Join Date: Mar 2011
Fan#: 84300
Location: Canton, MI
What I Drive: 2011 Ford Focus SES

Posts: 413
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 1 Outlaw5.0 Good Standing Member
Buy-Sell-Trade Rating: (0)
The 2.3 has a 3.70 stroke which is still really short, the rod is 6.094 long. The rod to stroke ratio comes in at 1.64, which is really good!. It is all about airflow, the Ranger 2.3 has the 2.0 cylinder head and look what happens. The stroke and rod length has nothing to do with rpm capability, its all about airflow plain and simple. Shrink the port volume on the 2.0, power will drop.

The 454 Chevy has a 4.00 stroke, and connecting rod is 6.135 long. The rod to stroke ratio is 1.53. Funny how these have spun 8000 rpms with stock length connecting rods and rectangular port 990 heads. Heck look at the big 632 big block(4.600 bore x 4.750 stroke) chevys with good spread port heads, they spin 8500 rpms!.
Outlaw5.0 is offline  
    Reply With Quote Quick reply to this message
Old 11-25-2012, 12:14 PM   #37
turbosvtfocus04
Focus Enthusiast
 
turbosvtfocus04's Avatar
 
Join Date: Jul 2012
Fan#: 100806
Location: Yorkville, IL
What I Drive: 2004 black svt

Posts: 197
Points 233, Level 4
Points: 233, Level: 4 Points: 233, Level: 4 Points: 233, Level: 4
Level Up 66% Completed
Level up: 66% Level up: 66% Level up: 66%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 turbosvtfocus04 Good Standing Member
Buy-Sell-Trade Rating: (1)
You can't compare a v8 to a 4 cylinder. Two completely different types of motors. So are you going to tell me you can't over stroke a 4 cylinder too
turbosvtfocus04 is offline  
    Reply With Quote Quick reply to this message
Old 11-25-2012, 12:22 PM   #38
gimmemoreboost
Focus Enthusiast
 
gimmemoreboost's Avatar
 
Join Date: Mar 2011
Fan#: 83716
Location: Oswego, IL
What I Drive: 2007 Pitch Black ZX5

Posts: 273
Points 1,698, Level 23
Points: 1,698, Level: 23 Points: 1,698, Level: 23 Points: 1,698, Level: 23
Level Up 98% Completed
Level up: 98% Level up: 98% Level up: 98%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 1 gimmemoreboost Good Standing Member
Buy-Sell-Trade Rating: (4)
Its not all about airflow either. The piston speeds in the 2.0 are slower at 8k that the 2.3 at 7k.
gimmemoreboost is offline  
    Reply With Quote Quick reply to this message
Old 11-25-2012, 12:55 PM   #39
Outlaw5.0
Focus Enthusiast
 
Join Date: Mar 2011
Fan#: 84300
Location: Canton, MI
What I Drive: 2011 Ford Focus SES

Posts: 413
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 1 Outlaw5.0 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by turbosvtfocus04 View Post
You can't compare a v8 to a 4 cylinder. Two completely different types of motors. So are you going to tell me you can't over stroke a 4 cylinder too
So 4 cylinder engines are not affected by airflow?.
Outlaw5.0 is offline  
    Reply With Quote Quick reply to this message
Old 11-25-2012, 12:57 PM   #40
Outlaw5.0
Focus Enthusiast
 
Join Date: Mar 2011
Fan#: 84300
Location: Canton, MI
What I Drive: 2011 Ford Focus SES

Posts: 413
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 1 Outlaw5.0 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by gimmemoreboost View Post
Its not all about airflow either. The piston speeds in the 2.0 are slower at 8k that the 2.3 at 7k.
With more stroke comes increased piston speed, and then comes the need for additional airflow.
Outlaw5.0 is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 06:41 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat