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ZETEC Performance (2000-2004) The place to chat about any 2.0L Zetec engine performance, tuning and exhaust related upgrades.

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Old 02-18-2014, 11:45 PM   #121
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Hmmm i was looking at rebuilding my engine for my focus and going ITB.

The Plan so far is:

Suzuki GSXR 750 TB
SVT Lower manifold
Stage 2 Kent Cams
Adjustable Cam Gears
UDP's
PNP head with 1mm larger valves.
etc etc etc

My Question is that i read that if put a 1.8 head on my 2.0 it will increase the CR to about 10.9:1 and with a milling of the head of 0.040 it shuold take me to about 11.0:1.

Is it better to use pistons and rods designed for higher CR or use the 1.8 head?

This is for a weekend car that i will use for some fun with mates who have miatas doing hill climbes.
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Old 03-23-2014, 01:37 AM   #122
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Anyone here ever instal a set of 30mm exhaust valves in the 2.0 head?

Just looking for some pro vs con information. Was it worth the work enlarging the exhaust seats not?
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Old 03-23-2014, 10:35 AM   #123
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Quote:
Originally Posted by GhostTribute View Post
Anyone here ever instal a set of 30mm exhaust valves in the 2.0 head?

Just looking for some pro vs con information. Was it worth the work enlarging the exhaust seats not?
I have not see any gain worth the cost of the valves unless your shooting for over 400HP I dont feel its worth it

Tom
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Old 03-24-2014, 05:33 AM   #124
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Thanks for the quick response. Saved me $160.
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Old 04-28-2014, 03:43 PM   #125
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Wow, I wish I had read this thread before I started my "project"!

Now Im worried Im over doing it but there's no turning back now, DP is in pieces and parts are ordered and mechanic has time involved.

machined head bored 20 over
Comp stg3 Cams
Car had adjustable cams gears, not sure of the vendor....
JE 2618 Forged Aluminum Piston 85.5mm pistons 9.0.1 compression
Eagle 4340 Forged Steel H Beam rods with ARP bolts
ARP Main and head studs
C-F-M billet Oil Pump gear
Ford Racing Oil pump
Clevit Rod Bearings
FX-400 6 puck Clutch luk bearing on slave cylinder
SVT Header and CAT (Header is wrapped in red SickSpeed thermal wrap)
Bosal 2.25 Performance SS exhaust
RS Metal radiator fans
Crower springs with titanium keepers
Bostic SS Thermostat housing. 180 deg thermostat
C-F-M Tubular control arms with M00g ends
Massive speed sway bar end links
Prothane front and rear bushings

This isn't cheap, but I need a capable engine that hopefully will last, I've never had a standard so over reeving was never really an issue. Im sure that is what killed the current engine. Loss of oil and then cylinder 4 lost the rod through the block. Hole is almost the size of a quarter!

Only time will tell, and Im not looking to go 400 hp N/A, but I do want to fly sometimes, both of my stock duretecs seemed to hold their own. i just don't want to kill DP's engine while learning my 5 speed!
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Last edited by daspazzZX3; 07-20-2014 at 07:16 PM. Reason: more power
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Old 05-11-2014, 08:37 AM   #126
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Well just finished working a 40 day shutdown and decided to spend the money anyway...lol

+1mm intake and exhaust valves with a 90% valve to throat ratio.


Went with 4 angle on the intake and 3 angle on the exhaust.... have to wait and see what the old DIY flow bench says. I have to calibrate it first. Waiting for a calibration orifice plate to arrive.

Picked up a 11.5lb Fidanza and Centerforce clutch as well....


Before anyone goes off and says that this is a waste of time..... remember, this is my hobby. Any time spent in the garage tinkering is time enjoyed! If there are benefits from it, that is a bonus to all of us.
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Old 05-11-2014, 09:38 AM   #127
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Roger that! Thats like me and guitars!!! 8-)
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Old 07-19-2014, 03:55 AM   #128
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Ok guys... I'm trying to make sure I got everything done possible before I start diving into the motor. I'm slowly working on my N/A 01 zx3. I think I'm about at my limit...
So my current setup is this:
Iceman intake, Steeda 65mm tb, (I have a cfm 3" MAF tube just not installed), Y2K ported intake manifold, EGR delete, FR plug wires, SVT Exhaust Manifold, 2.25" or 2.5" ORP (not sure of make and forgot to measure before putting it on) to 2.5" flex to 2.5" Fswerks stealth Exhaust. And I'm about to install this weekend a stage 2 clutch kit 6-puck, ClutchMasters 9.5lb flywheel, and Fidanza cam gears and new timing belt. Now I was contemplating installing a crank UDP, but I've only read that it's not worth it.... (True for N/A build or no?). Now I would love to get a set of stage 2 cams, but I'm not sure where I should go from there. I have an SCT Xcal3 and I plan on going to Tom for my tune when It's up and running before the cams. My question here is an I missing anything? Keep in mind this is my daily driver, but I am a Hobbyist who can't stop messing with his car! Lol I do all my own work and I feel like GhostTribute does about N/A. It's not about easy, it's about the pride, respect and labor of love it takes to build something and learn new things along the way!

I'd like to say thanks and also give admiration and respect to all of you who have actively posted in this thread!

Thanks in advance for any help received!

Tony
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Old 07-20-2014, 07:20 AM   #129
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180 deg thermostat , Motorcraft SP463 plugs

Tom
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Old 07-20-2014, 09:53 AM   #130
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Awesome! I'll pick those up as well as a wideband this month before I give you a call for the tuning! Thanks Tom.
Oh about the Cams, should I go with a stage 2, or 3? I never plan on going FI.
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