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can anyone tell me the cam spes for the duratec and the valve sizes? i am trying to run a dyno simulation to get to understand the program better. thanks

#537523 02/02/03 05:52 AM
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All the information you ask for has been posted numerous times in the past.

You could have had this information at any time you wanted to, instead of waiting, by simply doing a little searching.

However I am in a jovial mode (yes I know it's rare folks ) so here is much, much more than you ever imagined much less asked for...

-------

2.5L Specs (Pre 00)
Bore: 82.4mm (3.24?)
Stroke: 79.5mm (3.13?)
Displacement: 2544cc
Chamber Volume: 44.5cc
Combined Chamber Volume: 45.1cc
Head Gasket Thickness: 1mm (.034)
Intake Valve: 32mm (1.26?)
Exhaust Valve: 26mm (1.02?)

2.5L Specs (00 and on)
Bore: 3.22" (81.67mm)
Displacement: 2499cc

3L Specs
Bore: 3.504" (89mm)
Stroke: 3.13" (79.5mm)
Displacement: 2967cc
Chamber Volume: 48.2cc
Combined Chamber Volume: 52cc
Head Gasket Thickness: 1mm (.040)
Intake Valve: 35mm (1.38?)
Exhaust Valve: 32mm (1.26?)

All Duratecs
Deck Height: 208mm (8.19")
Deck Clearance: Minimum 0.415(0.016) Below to 0.115(0.0045) Above
Piston Compression Depth: 1.1811"
Connecting Rod Length: 5.44"
Bore Spacing: 102mm (4.02?)
Block Length: 396mm (15.6?)

Cam Specs - Valve timing is at .050
*98-00 2.54L & 2.49L SVT*
Intake Open = 18 deg. BTDC primary & secondary
Intake Close = 52 deg. ABDC for primary
Intake Close = 60 deg. ABDC for secondary
Intake Duration = 250 deg. for primary
Intake Duration = 258 deg. for secondary
Exhaust Open = 61 deg. BBDC
Exhaust Close = 21 deg. ATDC
Exhaust Duration = 262 deg.

*95-00-2.54L & 2.49L Non-SVT and 95-99 3.0L Non Lincoln LS*
Yes, they use the same cams. Only LH 2.5 Intake is longer for accessory drive pulley.
Intake Open = 17 deg. BTDC primary & secondary
Intake Close = 47 deg. ABDC for primary
Intake Close = 53 deg. ABDC for secondary
Intake Duration = 244 deg. for primary
Intake Duration = 250 deg. for secondary
Exhaust Open = 67 deg. BBDC
Exhaust Close = 13 deg. ATDC
Exhaust Duration = 260 deg.

*2000-3.0L Non Lincoln LS*
No primary or secondary. Head is not split port.
Intake Open = 4 deg. BTDC
Intake Close = 48 deg. ABDC
Intake Duration = 232 deg
Exhaust Open = 56 deg. BBDC
Exhaust Close = 12 deg. ATDC
Exhaust Duration = 248 deg.

Max Lift = 9.8mm


2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.
#537524 02/02/03 11:08 PM
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Wow Demon,,you were feeling lovely weren't you,, all that and then some,,nice


I drive a Ford, what else do you need to know??
#537525 02/07/03 12:31 PM
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demon, i love you!!!! thanks, i needed that

#537526 02/08/03 08:05 PM
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Demon, I posted all of those cam specs a while ago. However, I did not say that they were at 0.05" lift. I also didn't give the 9.8mm Max lift spec.

Please PM me concerning the profiles, maybe we can put together a more complete list for the group. The lift measurements that I have made off the lobe and off the retainer don't match the max lift spec that you have.



#537527 02/09/03 05:30 AM
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Originally posted by procyon:
Demon, I posted all of those cam specs a while ago. However, I did not say that they were at 0.05" lift. I also didn't give the 9.8mm Max lift spec.

Please PM me concerning the profiles, maybe we can put together a more complete list for the group. The lift measurements that I have made off the lobe and off the retainer don't match the max lift spec that you have.



Sounds good. The 9.8mm is directly from the Ford Factory CD's.

The .050 for valve timing is what computer models show as the most accurate power curves for those valve points. Using seat to seat gives high overall numbers and a very high low to mid range torque curve.


2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.

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