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DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

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Old 03-04-2014, 07:59 PM   #11
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2.0L stroke is 3.27
2.3L stroke is 3.70
2.5L stroke is 3.937
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Old 03-06-2014, 04:36 PM   #12
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Quote:
Originally Posted by 1turbofocus View Post
That would be a hugh incorrect assumption , Block/deck height , head , cams and more

Tom
Where can more info be found on the cam difference between the D20 and D23 cams? I'm probably not using the right search terms, or finding the right threads while sifting through the search results, but the only information I've been able to find on the stock cams is single sets of measurements, similar to this: http://www.focusfanatics.com/forum/showthread.php?t=120713

Also are there any known dynos comparing otherwise identical naturally aspirated setups on a D20 with only changing from the stock D20 head to the stock D23 head, to know realistically what gains are hiding there? Most of what I've been able to find on the D20 head actually being any appreciable restriction to mild/moderate naturally aspirated D20's appears to be primarily based on assumptions and hearsay, or who changed out more than just the head when measuring their gains.
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Old 03-06-2014, 05:00 PM   #13
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not too sure.. BUT a question I've had was and is when u upgrade your cams tooo like a stage 1 .. I was told that its the stroke that's different. BUT if u change that wouldn't you need to change something else like piston length... oor something .. and IF I was to do that on a 99% stock engine like the 2.0 would it even make a difference ?
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Old 03-07-2014, 05:56 AM   #14
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Quote:
Originally Posted by Gladious View Post
not too sure.. BUT a question I've had was and is when u upgrade your cams tooo like a stage 1 .. I was told that its the stroke that's different. BUT if u change that wouldn't you need to change something else like piston length... oor something .. and IF I was to do that on a 99% stock engine like the 2.0 would it even make a difference ?
The 23 uses a taller deck height for the longer stroke crank vs the 20. Yea, installing stage 1 cranes do make a difference in both motors. No mix & matching the bottom end of either motor. If you want a 23 get one. You can throw a 23 head at the 20.
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Old 03-07-2014, 06:49 PM   #15
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Quote:
Originally Posted by felixthecat View Post
The 23 uses a taller deck height for the longer stroke crank vs the 20. Yea, installing stage 1 cranes do make a difference in both motors. No mix & matching the bottom end of either motor. If you want a 23 get one. You can throw a 23 head at the 20.
hmmm 23 and 20?.. I've read about that ..now im going to have to re look that up lol.
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Old 03-08-2014, 09:11 AM   #16
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Originally Posted by Gladious View Post
hmmm 23 and 20?.. I've read about that ..now im going to have to re look that up lol.
Plus the 23 uses longer rods too.
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Old 03-09-2014, 08:02 PM   #17
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mmm... what about that Massive product the boarded cylinder wouldn't you need to change everything with that type of thing? because I seriously debating about up grading my car or finding a newer car and just garage keep that instead ...but im just trying to test the waters before I jump in..
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Old 03-09-2014, 08:30 PM   #18
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The "boarded plate" I think you are referring to is a torque plate to bolt on in place of the head when boring cylinders to a larger size ( to compensate for wear when rebuilding).

It's a machine shop tool, not a performance part.
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Old 03-09-2014, 10:32 PM   #19
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Massive.com has the actual cylinder head .. lets see ..

http://www.massivespeedsystem.com/_m.../i-412029.aspx

i hope that link is do-able
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Old 03-10-2014, 05:36 AM   #20
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Quote:
Originally Posted by Gladious View Post
Massive.com has the actual cylinder head .. lets see ..

http://www.massivespeedsystem.com/_m.../i-412029.aspx

i hope that link is do-able
That head looks awesome. To take advantage of it you'll need rods/pistons & turn the motor at high rpm or go boosted. It seems geared towards racing. The 23 head is the realistic way to go. If you had a sbc or ford v/8 I'd say go for it.
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