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Old 05-30-2001, 05:55   #1 (permalink)
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cool The Perfect XR8 Engine

see www.drive.com.au

The 32-valve 5.4-litre InTech V8 in Lincoln's Blackwood produces copious horsepower and torque: 224kW at 5,000rpm and 481Nm at 2,750rpm.

Those are ideal numbers for XR8. Look at the torque - 481 at 2750rpm. That's the grunt factor Ford V8s need and at the right sort of revs.
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Old 05-30-2001, 06:15   #2 (permalink)
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This is a good sign. Isn't this the first DOHC 5.4L:confused: The Cobra R uses SOHC 5.4 doesn't it? If so, then this could be the baby heading our way:)

The torque is definitely up there and it's pretty low in the rev range, ulike the LS1, where its torque peaks at what, high 3, 4,000RPM???

The only thing that worries me is the power..220 out of the box doesn't seem high enough, although this could be a detuned version the pickup:confused:
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Old 05-30-2001, 06:40   #3 (permalink)
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Yeah i think power is modest there, engine hasn't been warmed yet.
But yeah that torque looks pretty serious, hmm that'll pull a few stumps out around my place :D :D :D

Farout 481Nm at 2750 thats pretty torquey probably too torquey wouldn't you want it at around 3000 - 3500 to give a decent top end speed.
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Old 05-30-2001, 07:06   #4 (permalink)
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I wouldn't be worried with that quoted power figure. Decent breathing exhaust and nice ported intake bits would see it rise to the occasion. That torque figure is just plain JUICY!! :thumbup: :damack: :gok:

Now where can I get me one of these, all alloy please? :D

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Doh! Gotta get me a new clutch first! :( :thumbdown
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Old 05-30-2001, 08:23   #5 (permalink)
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The Cobra R uses twin cam heads which is why the huge hood is needed on its 5.4. I personally think a well executed bonnet buldge on a agressive car is the way to go but i think this will stop Ford from using that engine.

This other engine would need to be touched up a fair bit for a T Series in the top end dept without it ending up with inferior low down torque to an XR8 which would be difficult. Hopfully its detuned because i too think we need to be detuning engines for the XR8 rather than tuning them up for the T Series and more importantly future XR8s.
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Old 05-30-2001, 09:01   #6 (permalink)
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The reason for all that low down torque is the 90.2mm bore and 105.8mm Stroke. A Bore smaller than our 4.0L six but a longer stroke than a 428 big block. Youd really want it the other way round for a High Performce engine.....
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Old 05-30-2001, 22:28   #7 (permalink)
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Quote:
Originally posted by Martin
The reason for all that low down torque is the 90.2mm bore and 105.8mm Stroke. A Bore smaller than our 4.0L six but a longer stroke than a 428 big block. Youd really want it the other way round for a High Performce engine.....
Not so! Look at the Honda engines - high revs yet still long stroke. I LIKE strokers - can't beat that midrange rush for everyday driving!
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Old 05-30-2001, 23:00   #8 (permalink)
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Quite nice but i tend to agree with Martin. I would like an engine that has room for stroking later.That 5.8L could be possible then of course.A motor square in dimensions is a little better. Not wanting to moan about a good thing still.
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Old 05-30-2001, 23:41   #9 (permalink)
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Hows about this for a nice starting point? ... Doc, I think this is your kind of lump of metal! :thumbup:

... and this thing can be bored out to HOW many cubic inches?!!? :eek: :eek: :eek: :wink2:
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Old 05-30-2001, 23:44   #10 (permalink)
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yeah got all the info on these critters, there called gorilla blocks. rounded price is about $4500 yanky. stroke them to 510 plus. one of the ones I enquired about was 800 cubes standard. now stroke that mother and have some fun
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