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To change the rocker ratio have to move one of three components positions...the valve stem---the cam pivot point or the lash adjuster pivot point...forget it...uprating the valve springs leads to more load on the followers...which are not that strong for such upgrades...we are back to the limits of finger followers with u/rated cam grinds Vs 'direct acting' cams re LS and Jag duratecs...we have been here before guys..!!!!! 
V6 MTX
'Don't p**s up my back then tell me it's raining!!!"
'Its only nuts & bolts!'
'If I build it,fix it,upgrade it or modify it...MAYBE they will come....!
Haines Motor Sports Inc,
Dealer for 'Quaife America' & 'Autotech Sport Tuning'
SOLE USA Dealer for the American Axle 'AUSSIE BAR'...
Get a Turbo for you Zetec from HMS Inc...by 'The Demon' ...www.DemonDynamics.co.uk
..don't talk about it DO IT !!!
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Joined: Sep 2000
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Originally posted by Yankeyspeed:
Is it possible to change the ratio of the "fingers"? like going to bigger rockers. Maybe between the cams and the fingers you can get even more? Besides they are a 1.8 ratio to begin with... Like Terry said. Without changing the entire valvetrain geometery you aren't going to affect much but longevity.
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Joined: May 2001
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I'm gonna see what my supplier can do about maybe just custom building heads specific for the 2.5 Duratech!!! 3 Liter, maybe some other time, I don't want to do to many things at once I might get BRAIN FRY!!! 
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Their is a 'custom' head/valvetran for the 3.0 at least ..its the LS or Jag X type heads....
V6 MTX
'Don't p**s up my back then tell me it's raining!!!"
'Its only nuts & bolts!'
'If I build it,fix it,upgrade it or modify it...MAYBE they will come....!
Haines Motor Sports Inc,
Dealer for 'Quaife America' & 'Autotech Sport Tuning'
SOLE USA Dealer for the American Axle 'AUSSIE BAR'...
Get a Turbo for you Zetec from HMS Inc...by 'The Demon' ...www.DemonDynamics.co.uk
..don't talk about it DO IT !!!
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Joined: Mar 2001
Posts: 1,151
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Terry, is there any way to get a hard and true price for that type of work? I'd feel like I was only doing a half a**ed job if I did a 3.0 w/o some sort of head work.
ChickenhawkRacing@hotmail.com
1998: #4415/6535
mods: Sheet metal screws in rear chrome strip
Four wobbly corners
"Hey, do you like apples?"
"Well, yeah."
"Well, I got her number, how do you like them apples?"
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Joined: Jun 2001
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Sounds great Silva! Those of us planning on sticking with the 2.5L appreciate it! Custom heads and cams sound like a dream come true. 
98 E0 Silver SVT
KKM - Bassani - MSDS - BAT - ES - Unorthodox - HID - Dyna-batt - Koni - Ground Control - 17" MAS Italy Rodger - Quaife - Fidanza
"Every easy girl I have been with has been either a hosebeast or a headcase" - Pete D
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Joined: May 2001
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I think with Terry's expertise, if I had him on board this project, our DREAMS may come true...
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My expertise can be bought....at a price.....either direct or thru HMS Inc...Silver, start with the 'base circle mods' first..TH
V6 MTX
'Don't p**s up my back then tell me it's raining!!!"
'Its only nuts & bolts!'
'If I build it,fix it,upgrade it or modify it...MAYBE they will come....!
Haines Motor Sports Inc,
Dealer for 'Quaife America' & 'Autotech Sport Tuning'
SOLE USA Dealer for the American Axle 'AUSSIE BAR'...
Get a Turbo for you Zetec from HMS Inc...by 'The Demon' ...www.DemonDynamics.co.uk
..don't talk about it DO IT !!!
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Joined: May 2001
Posts: 667
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Don't worry Terry, I wouldn't ask for free advise... Terry your mail is full, so I'll let you know here, I'm sending out your parts this Friday...Aloha
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