Are 5.4Litres at their limit? - Ford Forums

xw_beast · 10-08-2002, 06:41

My Holden mates reckon the the 5.4L may be able to beat the LS1 at the moment, and pull out more figures, but they reckon that it is hotted up to its limit. eg: bore x stroke isnt square, etc.
They reckon the LS1 can pull out far more power but the new Ford V8 is going as hard as it can.
Does anyone know anyth
ing about this?

Great White · 10-08-2002, 07:06

Not a chance. As the car evolves into the series 2 and on, I'm confident we will see 280 - 300 kw versions with 530 - 550nm from the factory but, perhaps if we dont, then at least we will have refinement and tractability without the oil consumption.
Just wait till the aftermarket stuff becomes available!!

Cobra · 10-08-2002, 07:10

No way 2! The New engine with all its technologies, VVT and Quad cams, would be a very capable engine. Maybe N/A the LS1 would get more power, but look at it's higher compression ratio. Take a romeo or triton and whack on a blower and the improvement in power is phenomenol.

The end result is, both engines, if reliable will make more power than youd ever need dont worry about that.

xw_beast · 10-08-2002, 07:13

Cool, now I can safely smother their flames.

Martin · 10-08-2002, 08:33

Unfortuanatly I cant honestly see any kind of aftermarket heads, strokers (its already 'stroked') intakes, and possibly even cams available for the 5.4L at all. The LS1 has these in abundance....

But theres always forced induction

strife · 10-08-2002, 13:39

I think it would be a pretty ignorant comment to say the 5.4s are at the max.

Id imagine a few Cobra components would work on these engines ?

The best thing that came available to the LS1 crowd is access the PCM. What sort of PCM does the 5.4 use ?

mkoesel · 10-08-2002, 13:42

Quote:

Originally posted by Martin
Unfortuanatly I cant honestly see any kind of aftermarket heads, strokers (its already 'stroked') intakes, and possibly even cams available for the 5.4L at all. The LS1 has these in abundance....

But theres always forced induction

You can get aftermarket cams, but they are very expensive.
There are other heads available also, but I'm not sure if they
will outflow the Boss 260 heads. We'll have to wait and see.

As for the motor being at it's limit -- I don't think so:

http://www.enduroracing.com/truckspecs.htm

and you thought the Boss 260 intake was big :)

IPhido · 10-08-2002, 14:05

Arrrhhhh..

Both the 4.0 and 5.4 can be made more powerful but not by using simplistic "stroke it" kits..

The 5.4 does not leave much room for stroking and boring at most you could get is ~5.7L but you would not really gain anything by doing it..

The 5.4 has a long stroke, it will produce nice fat torque down low. Up top, it has a sophysticated engineering called twin cams and multivalves and varible cam timming. You can increase compression, you can do cams and springs and valves. And you can add a supercharger.

They take diffrent approaches to making power (ls1 is all old sckool V8 tech where as ford is all new sckool tech). I belive there limits are quite simular.

Aussie Pete · 10-08-2002, 16:12

The bECU on the 5.4 is EEC7 and it's gonna be a hard one to crack. The modding of the BA will be a nightmare because even changing out a radio unit requires a new software download (from what I have been told so far).

I sure hope Ford haven't killed off the aftermarket by closing these doors because that would be cutting off their feet!

Mr Sparkle · 10-08-2002, 20:11

Quote:

Originally posted by strife
I think it would be a pretty ignorant comment to say the 5.4s are at the max.

Id imagine a few Cobra components would work on these engines ?

The best thing that came available to the LS1 crowd is access the PCM. What sort of PCM does the 5.4 use ?

Quite correct!!

As AP said, the BA's all use what has been termed the "Black Oak" PCM, which is actually EEC-VII. What AP neglected to mention, and probably didn't ask about last night, is that Rob Herrod is already on the case and will have EEC-VII tuning software within the next month or two.

Just remember - the EEC-VII is already used overseas in other models, so it's not the first time it's been implemented in a Ford.