Go Back   MustangForums.com > Ford Mustang Tech > 2005 - 2014 Mustangs > GT S197 General Discussion > 4.6L V8 Technical Discussions
Sign in using an external account
Register Forgot Password?
Search


4.6L V8 Technical Discussions Any questions about engine, transmission, or gearing can be asked here!

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 06-26-2009, 06:58 PM   #1
jreask
 
jreask's Avatar
 
Join Date: Jun 2009
Vehicle: 2009 Mustang GT
Location: MO
Posts: 42
Default 2009 GT 4.6 L 3v OHC

Can anyone explain the 3V in the OHC motor description? I am not mechanically inclined at all and I am the first to admit it. I understand that the Single OHC engine has the camshaft in the cylinder head. What does the 3V mean and can someone post a link that explains this? Thanks in advance for your help. I searched the forum and couldn't find anything on this. Perhaps a stupid question.

JR
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
jreask is offline   Reply With Quote
Old 06-26-2009, 07:22 PM   #2
NJ3
3rd Gear Member
 
Join Date: Dec 2006
Vehicle: 06, Ford Mustang
Location: Chesapeake, Va.
Posts: 523
Default

The 3V refers to the number of valves per cylinder. The 3v 4.6 has two intake and one exhaust valve per cylinder for 24 valves total.

A little more info on the Ford 4.6 here:
http://en.wikipedia.org/wiki/Ford_Modular_engine
__________________
2006 Redfire Mustang Coupe GT -Deluxe. IUP, Shaker 500, Side Air Bags, Spoiler Delete.
Roush M90 | KB BAP | Barton Shifter | Steeda Ultra-Lite Springs | Steeda Pro-Action Shocks & Struts | Eibach Sway Bars | Fays2 Watts Link | Corsa Xtreme AB | Bassani X-Pipe | 3.5" Shaftmaster DS | 398RWHP SAE
NJ3 is offline   Reply With Quote
Old 06-26-2009, 08:08 PM   #3
socalwrench
4th Gear Member
 
socalwrench's Avatar
 
Join Date: Mar 2009
Vehicle: 2008 Mustang V8
Location: CA
Posts: 1,291
Default

It's actually SOHC (single overhead cam {per head}). There is also a DOHC version; being the 4v engine.
__________________
Owner/Operator: GRH Performance
socalwrench is offline   Reply With Quote
Old 06-26-2009, 09:14 PM   #4
2007VistaBlueGT
2nd Gear Member
 
2007VistaBlueGT's Avatar
 
Join Date: Dec 2008
Vehicle: 2007 Mustang GT
Location: NY
Posts: 390
Default

That's a very good explanation in the link
__________________
FRPP Handling Pack, 95mm CAI, GT-500 throttlebody, FRPP CMCV delete plates, FRPP X pipe, JBA axle backs, Moto Blue UD Pulleys, PowerSurgePerformance 93 octane tune. Ford Racing Parts Dealer!! SpartaPerformance.com 13.05 @ 107.44mph.
2007VistaBlueGT is offline   Reply With Quote
Old 06-26-2009, 10:28 PM   #5
jreask
 
jreask's Avatar
 
Join Date: Jun 2009
Vehicle: 2009 Mustang GT
Location: MO
Posts: 42
Default

Thanks for the info. The explanation was great. Another question: How does the 4.6L V8 produce so much horsepower? I have driven another vehicle with a similar size engine, but the power was less than desirable.


Here is another great link about the Ford Modular engines:

http://www.mustangandfords.com/techa...ine/index.html


TIA


JR

Last edited by jreask; 06-26-2009 at 10:43 PM.
jreask is offline   Reply With Quote
Old 06-27-2009, 01:14 AM   #6
socalwrench
4th Gear Member
 
socalwrench's Avatar
 
Join Date: Mar 2009
Vehicle: 2008 Mustang V8
Location: CA
Posts: 1,291
Default

I think that one of the biggest benefits with the 4.6L engine is it's large amount of torque at low to mid-range levels. The engine just has a nice torque curve that can really move the car.

Ford Motor Company doesn't get half as much credit as they deserve with the design of this, and other modular engines. It breathes very well with limited camshaft profiles, and the VTT further helps produce power on demand, but fuel mileage when needed.
__________________
Owner/Operator: GRH Performance
socalwrench is offline   Reply With Quote
Old 06-28-2009, 01:09 PM   #7
Vapour Trails
3rd Gear Member
 
Join Date: Jan 2008
Location:
Posts: 530
Default

Quote:
Originally Posted by socalwrench View Post
It breathes very well with limited camshaft profiles, and the VTT further helps produce power on demand, but fuel mileage when needed.
You mean VCT as in variable cam timing. We don't have variable valve timing.
__________________
2006 Mustang GT Vista Blue, Black Leather
Whipple @ 11 psi - 11.69 @ 122.6 mph Stock Longblock, Stock TR3650, Stock Clutch, 3.55s
Mostly Steeda Suspension, Tokico D-specs
Vapour Trails is offline   Reply With Quote
Old 06-28-2009, 04:58 PM   #8
vashthe3rd
2nd Gear Member
 
Join Date: Oct 2008
Vehicle: 2005, Ford mustang GT
Location: Texas
Posts: 197
Default

Quote:
Originally Posted by Vapour Trails View Post
You mean VCT as in variable cam timing. We don't have variable valve timing.
He said VTT, variable time timing, oh yes Ford's dealing in quantum mechanics now!

Yea, the major benefit, and what keeps this car in competition with a motor that has been in use for over a decade is its head design and torque. The 3V's enable much more power and with the VCT we get low end torque to get these big heavy boats moving. It's kept the mustang going for a while now but I'm glad that Ford sees it's time for change.
__________________
Turbolicious
Hellion T-61 single Turbo
10 psi: 457 rwhp 516 rwtq
Traction is an illusive lady
vashthe3rd is offline   Reply With Quote
Old 06-29-2009, 11:08 AM   #9
socalwrench
4th Gear Member
 
socalwrench's Avatar
 
Join Date: Mar 2009
Vehicle: 2008 Mustang V8
Location: CA
Posts: 1,291
Default

VTT is the generic term. If you change the position of the cam(s) than you are also altering the valve timing.
__________________
Owner/Operator: GRH Performance
socalwrench is offline   Reply With Quote
Old 06-29-2009, 01:43 PM   #10
Vapour Trails
3rd Gear Member
 
Join Date: Jan 2008
Location:
Posts: 530
Default

Quote:
Originally Posted by socalwrench View Post
VTT is the generic term. If you change the position of the cam(s) than you are also altering the valve timing.
Technically, you are right, but its not comparable to VVT systems which change lift/duration, as those are much better at improving power.

VCT made its way into the 3V engine mostly for fuel economy reasons. Most who get into serious N/A modes lock the system out.
__________________
2006 Mustang GT Vista Blue, Black Leather
Whipple @ 11 psi - 11.69 @ 122.6 mph Stock Longblock, Stock TR3650, Stock Clutch, 3.55s
Mostly Steeda Suspension, Tokico D-specs

Last edited by Vapour Trails; 06-29-2009 at 01:49 PM.
Vapour Trails is offline   Reply With Quote
Old 06-29-2009, 01:43 PM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
2009, 3v, 46, 46l, engine, ford, head, horsepower, means, ohc, performance, sequence, specs, torque, v8

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 05:20 AM.

© Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup