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

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Old 09-20-2015, 03:15 PM   #1
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piston rings fried, need rebuild advice

So I bought this svt in june, from a guy who didn't do any of the work to it and was just selling it after owning it for about a month. after some research I found out some stuff about the previous owner that did all the work to it, this is what I found

http://www.cardomain.com/member/troy23thompy/

Haven't found out much since. this is the mod list in the description

PowerWorks Supercharger (251whp 92 Octane)
6 Hours of Tuning by HiTech Motorsport’s
Custom Borla Center exit w/o mid-muffler
CFM Off-Road Pipe
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BFGoodrich g-Force T/A KDW-2
Custom Cross Drilled & Slotted Rotors EBC RedStuff Pads
G2 Black Coated Calipers
AEM Wideband A/F Gauge
Glow Shift Boost/Vacuum Gauge
Glow Shift Fuel Pressure Gauge
FRPP Triple Gauge Pod
Redline Black w/ Red stitching Shift and E-Brake boots (Italian Leather)
CFM Adjustable STS
VIS Invader Carbon fiber Hood
“Infra Red” Powder Coated Valve Cover
PatternTek Carbon Fiber Valve Cover
Tint
Euro Grill

I basically bought the car and it blew the pistons after about 10 miles of driving about an hour from home, made for a very bad night. Now its home and after a mechanic telling my the motor was trash, I took it apart using a guide on how to remove the head here on the forum. after going back through some of the messages with the seller I saw that he was using a lower octane gas than it was tuned for and that he was running an octane booster to help it out, I believe that's what made the engine go boom. The air fuel gauge went all the way lean and would read 14 at times, and I didn't know what that meant at the time so I had no idea it was bad for the engine.

anyways, here are some pictures of the damage, they are of the pistons themselves pistons 2 and 3 are missing crescent moon shaped slices on the intake side of things where the PWSC sits.

So now I need to decide what to do, the way I see it I have a few options...

-Buy another motor from a junkyard and replace the engine.
-Buy another whole car for the motor and part it out, hopefully making a little bit of money in the process. though this would take a lot of time, and space to hold a car while its being parted out that I really don't have.
-Buy a normal engine from tom which I think was like 2k?
-Buy a better engine from tom that has forged internals and better suited to hold the boost of the supercharger think it was 3k and change.
-Cut my losses and part out this car, it only has 45k miles on it and its super clean, which is why I bought it in the first place and hopefully recoup the money that I have in it currently. Then buy a FiST.

2500 for the supercharger? 500 wheels? Head is intact at 400? Tranny at 600? full pristine interior 500? HID lights 300? Carbon hood 300? Front and rear bumper 200 a piece? zx5 Doors with tint on windows great paint? SVT front and rear brake kit? plus all those other parts listed above.

Everything about this car is super clean and low mileage, so I'm thinking these parts command a premium?

anyway guys please help me decide what to do with this car that's sitting in my driveway right now. Open to suggestions. Thanks! sorry for the long read, just getting my thoughts written down.


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Old 09-20-2015, 03:52 PM   #2
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Sure ran lean, bet it went quick before it quit. Classic melt down.

Pick your choice on options, and add zetec bottom ends to the list.

Part out guesses seen optimistic.
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Old 09-20-2015, 03:58 PM   #3
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Why not a quick and easy rebuild and enjoy the car? A set of pistons, rings, bearings, and gaskets shouldn't set you back too much. I'm sure Tom Lesperance can help correct the tune. If you need sourcing parts, shoot me an e-mail, we've built more than a handful Zetec engines since the initial R&D program for Ford back in 1999...
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Old 09-20-2015, 04:13 PM   #4
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Quote:
Originally Posted by Brian@Esslinger View Post
Why not a quick and easy rebuild and enjoy the car? A set of pistons, rings, bearings, and gaskets shouldn't set you back too much. I'm sure Tom Lesperance can help correct the tune. If you need sourcing parts, shoot me an e-mail, we've built more than a handful Zetec engines since the initial R&D program for Ford back in 1999...
So you guys are saying that I can take a zetec engine and use the bottom end and mate that to the SVT head and make it work??? I actually have and engine in a car that I can use. When I got it the tranny was broken, sadly I replaced it already and am trying to sell the car as a whole currently.

Brian, I was thinking that the block would have to me machined if I decided to re use it? I figured that would be pretty expensive by itself. then Id have to add over bore forged pistons, and eagle rods..? to handle the boost of the supercharger I mean.
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Old 09-20-2015, 04:15 PM   #5
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Quote:
Originally Posted by sailor View Post
Sure ran lean, bet it went quick before it quit. Classic melt down.

Pick your choice on options, and add zetec bottom ends to the list.

Part out guesses seen optimistic.
Yeah I figured they might be, probably not too many people left who want these parts sadly.
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Old 09-20-2015, 04:18 PM   #6
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Ive been looking through craigslist recently and this engine seems like a great fit for me if I can indeed use a non svt bottom end in my car. Cheap and super low miles, about an hour away from me.

here's a link to it.
Ford Focus 2.0 Zetec DOHC engine
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Old 09-20-2015, 04:55 PM   #7
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DO NOT use a ZX3 bottom end in your Focus , you can use the Zetec block and crank but DONT use the rods and pistons

You also need to go through the head and do a full valve job

Tom
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Old 09-20-2015, 05:00 PM   #8
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So a full valve job entails, new valves, and what other things?

How much is a new engine from you Tom? I'm thinking that's the easiest, if not the cheapest way to go.
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Old 09-20-2015, 05:14 PM   #9
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Quote:
Originally Posted by Brian@Esslinger View Post
Why not a quick and easy rebuild and enjoy the car? A set of pistons, rings, bearings, and gaskets shouldn't set you back too much. I'm sure Tom Lesperance can help correct the tune. If you need sourcing parts, shoot me an e-mail, we've built more than a handful Zetec engines since the initial R&D program for Ford back in 1999...

... but them bores.
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Old 09-20-2015, 05:25 PM   #10
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The cylinders should be bored & honed, but that's only a couple hundred bucks. That's cheaper than buying a GOOD base model Zetec shortblock.

You can do a valvejob and surface your existing valves unless something's bent...
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