Cam Gear question (Not the regular question) - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Ford Focus SVT > SVT Performance (2002-2004)

SVT Performance (2002-2004) The place to chat about any 2.0L SVT DOHC Zetec engine performance, tuning and exhaust related upgrades.

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

Reply
 
Thread Tools Display Modes
Old 10-11-2005, 12:46 PM   #1
seraphim
Focus Enthusiast
 
seraphim's Avatar
 
Join Date: Sep 2004
Fan#: 13621
Location: Philadelphia, PA
What I Drive: 2002 CD Silver SVT

Posts: 191
FF Reputation: 1 seraphim Good Standing Member
Buy-Sell-Trade Rating: (0)
Question Cam Gear question (Not the regular question)

Let me preface by saying I already did a search and was unable to find the answer I was looking for.

I know that the SVTF has varible timing on the intake cam, and I know that only the exhaust cam can be adjusted with an adjustable cam gear (hope I don't have those reversed).

But my question is this:
"In the interest of reducing unsprung weight and providing a setup with the lightest rotating mass, is it possible to install both cam gears, but set the intake to the same setting as the stock intake cam gear and only adjust the exhaust gear?"

I have no intention of removing my varible timing, as I am going all motor (NA) but I would like to keep both gears the same weight, and the more rotating mass I can shave the better, even if it's only ounces.


__________________
K&N Filter, EBC Pads, EBC Slotted & dimpled Rotors, FR Blue Painted Calipers, Spec Stage 2+, Spec Flywheel, Torsen T2 LSD, Driver and Pass. Steeda Engine mounts, CFM lower mount, Ingals Torque dampner (modified to fit the SVT), CFM STS, 70% tint
seraphim is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 10-11-2005, 01:02 PM   #2
pinacup7
Focus Enthusiast
 
Join Date: Jul 2004
Fan#: 10155
Location: philly
What I Drive: 2004 Infa Red SVT

Posts: 427
FF Reputation: 1 pinacup7 Good Standing Member
Buy-Sell-Trade Rating: (0)
Good question.
pinacup7 is offline  
    Reply With Quote
Old 10-11-2005, 01:50 PM   #3
svtfocus17
Focus Addict
 
svtfocus17's Avatar
 
Join Date: Aug 2004
Fan#: 11485
Location: South Jersey /Philly
What I Drive: 2003 Infa-Red SVT

Posts: 591
FF Reputation: 1 svtfocus17 Good Standing Member
Buy-Sell-Trade Rating: (5)
im interested in this also?? good question...pinacup where about philyl you from im there almost every week
__________________
N/A is best.

SVT Squad (Founder) #92
svtfocus17 is offline  
    Reply With Quote
Old 10-11-2005, 02:02 PM   #4
jaykirs
Focus Fanatic
 
jaykirs's Avatar
 
Join Date: Oct 2004
Fan#: 13947
Location: Houston, Texas
What I Drive: 2004 Infra-Red ZX3 SVT

Posts: 3,860
FF Reputation: 1 jaykirs Good Standing Member
Buy-Sell-Trade Rating: (1)
I have limited knowledge on the subject of adjustable cam gears, however if the intake cam gear is set to 0 degrees, the valve timing should remain the same and should function like it normally would because it's just acting as a lighter gear, the timing remains the same. I would say the answer to your question would be yes, you can do that.
__________________
04 SVTF #204 of 1978
SVT Squad #66

Understeer scares the driver, oversteer scares the passenger.
jaykirs is offline  
    Reply With Quote
Old 10-11-2005, 03:11 PM   #5
WD40
The Librarian
 
WD40's Avatar
 
Join Date: Mar 2004
Fan#: 5157
Location: Helena, MT
What I Drive: '04 Sonic Blue - SVT 3Door

Posts: 13,116
FF Reputation: 138 WD40 Excellent Standing MemberWD40 Excellent Standing Member
Buy-Sell-Trade Rating: (3)
I'm leaning more towards it not working....
There's a lot going on with the VCT, and I wouldn't doubt that's a very specific cam gear.
WD40 is offline  
    Reply With Quote
Old 10-11-2005, 03:24 PM   #6
crazymechanic
Focus Fanatic
 
Join Date: Sep 2004
Fan#: 12900
Location: Rockville, MD
What I Drive: 2003 SVT Focus

Posts: 1,643
FF Reputation: 1 crazymechanic Good Standing Member
Buy-Sell-Trade Rating: (1)
the variable cam timing is built into the intake gear. remove it, and you no longer have variable cam timing on that shaft. you will have a nice oil leak unless you get tom's vct eliminator. the intake shaft itself has no moving parts. the oil flows into the cam gear and puts pressure on one side or the other of a piston that meshes with a helical cut gear. the movement of the piston causes the helical gear to rotate the camshaft, advancing or retarding. you CANNOT remove the intake gear and retain your VCT
crazymechanic is offline  
    Reply With Quote
Old 10-11-2005, 03:34 PM   #7
WD40
The Librarian
 
WD40's Avatar
 
Join Date: Mar 2004
Fan#: 5157
Location: Helena, MT
What I Drive: '04 Sonic Blue - SVT 3Door

Posts: 13,116
FF Reputation: 138 WD40 Excellent Standing MemberWD40 Excellent Standing Member
Buy-Sell-Trade Rating: (3)
^^^I thought as much.^^^
Thanks for the MUCH better explanation than what I came up with.
WD40 is offline  
    Reply With Quote
Old 10-11-2005, 03:43 PM   #8
seraphim
Focus Enthusiast
 
seraphim's Avatar
 
Join Date: Sep 2004
Fan#: 13621
Location: Philadelphia, PA
What I Drive: 2002 CD Silver SVT

Posts: 191
FF Reputation: 1 seraphim Good Standing Member
Buy-Sell-Trade Rating: (0)
Hmmmmm...That sucks, I fugured it was actually a system like that, though.

I wonder if it's worthwhile to get the VCT elim. in order to cut down on the roataing mass or if I would just lose some of my high end HP?

If only someone would release a set of NA cams for the SVT.

Maybe I could get the intake cam machined, Im sure there is way more metal on there than nescessay, but, that could lead to problems with overall strength.

Guess I'll be doing some more research into Tom's VCT elim.
__________________
K&N Filter, EBC Pads, EBC Slotted & dimpled Rotors, FR Blue Painted Calipers, Spec Stage 2+, Spec Flywheel, Torsen T2 LSD, Driver and Pass. Steeda Engine mounts, CFM lower mount, Ingals Torque dampner (modified to fit the SVT), CFM STS, 70% tint
seraphim is offline  
    Reply With Quote
Old 10-11-2005, 04:44 PM   #9
havoc7476
Focus Enthusiast
 
havoc7476's Avatar
 
Join Date: Sep 2004
Fan#: 12504
Location: Saskatoon
What I Drive: 2003 SVT Focus

Posts: 296
FF Reputation: 1 havoc7476 Good Standing Member
Buy-Sell-Trade Rating: (1)
really don't think there would any reason to make the cam gear lighter. because the crank is turnig the cam gears, the cam gears are moving 1/2 or 1/4 (think its 1/2, cause to the two camshafts) the distance than the crank gear is moving. probably see more improvement with an underdrive pulley or lightened flywheel because both a crank pulley and flywheel move at the same rate.

you really don't want to make a mistake with camshafts, think of them as a very simple brain in your engine.

hope that it all made sense.
__________________
SVT Squad #197
havoc7476 is offline  
    Reply With Quote
Old 10-11-2005, 04:46 PM   #10
crazymechanic
Focus Fanatic
 
Join Date: Sep 2004
Fan#: 12900
Location: Rockville, MD
What I Drive: 2003 SVT Focus

Posts: 1,643
FF Reputation: 1 crazymechanic Good Standing Member
Buy-Sell-Trade Rating: (1)
the cams that the svt has are pretty good to begin with, and getting new gears to reduce rotating mass is pointless. the amount of mass that you'll save is so little you won't even see half a horsepower on the dyno. if you're trying to reduce rotating mass, get a lightweight flywheel and a good clutch, and some lightweight wheels. those are the only places you can really see more hp by reducing mass
crazymechanic is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -5. The time now is 09:43 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

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 Acura TLX or Fiesta ST. 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.