Will the real Scorpio Cam specs please stand up?

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brokencase
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Will the real Scorpio Cam specs please stand up?

Post by brokencase » Thu Sep 21, 2017 1:15 pm

I did a little digging around and I had found the following camshaft information.

The first I had found in a service page from the UK Scorpio website.
I believe this to be the same spec for the US Scorpio 2.9L because the HP and torque seemed to match
that of the US car. The other is the 2.9L for the US Ranger/Bronco.

What is to be learned from this? If you get a rebuilt 2.9L it will most likely have the Ranger Cam.
Torque HP peaks will be much lower in rpm than the original Scorpio engine and it will probably not run optimally
with the Scorpio EECIV.

Secondly, the stock Scorpio cam is better (duration wise) than the majority of the aftermarket cams for the 2.9L.
There are aftermarket cams with higher lift.

If anyone has any better information or if you see any errors in my data please post.

Scorpio (Euro?) Spec
145hp @ 5500rpm and 162ftlbs @3000rpm
Intake open 30 BTDC
Intake close 66 ABDC
Exhaust open 76 BBDC
Exhaust close 20 ATDC

Duration Intake 276
Duration Exhaust 276

1.47 Rocker Ratio
.375 lift intake
.375 lift exhaust

Lobe seperation 113
Intake Center Line 108
Exhaust Center Line 118

US Ranger/Bronco Spec
140 hp (104 kW) @4600 rpm and 170ftlbs @2600rpm
Intake open 25 BTDC
Intake close 51 ABDC
Exhaust open 74 BBDC
Exhaust close 20 ATDC

Duration Intake 256
Duration Exhaust 274

1.47 Rocker Ratio
.359 lift intake
.371 lift exhaust

Lobe seperation 110
Intake Center Line 103
Exhaust Center Line 117

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