OK.. now that AV is getting DOHC Turbos..... - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 19 (permalink) Old 11-10-01, 09:30 PM Thread Starter
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OK.. now that AV is getting DOHC Turbos.....

We all know that the new xr6's (AV model - Project Barra) are gonna come with turbos.
Does that mean the factory turbo system will be more accessible for us with older model fords.
If so.. i'll wash out the Supercharger thoughts and wait for the TURBO!!!!

Anyone have any comments?
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post #2 of 19 (permalink) Old 11-10-01, 09:45 PM
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Almost 100% doubtful. It will be significantly changed from any previous engines, as I have been informed :)
post #3 of 19 (permalink) Old 11-12-01, 07:49 PM
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Yeah, like DOHC, 24 valve different.
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post #4 of 19 (permalink) Old 11-13-01, 05:12 AM
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I know from Ford sources, the six is DEFINITELY Double Overhead Cam 24 Valves, 180kw standard on the Forte.

The XR6 will have a Turbo option (maybe twin not sure) either 220kw or 240kw.

Then there is the V8 Engines...
4.6l DOHC 32V 240kw
5.4l DOHC 32V 280 kw - 300 kw
The Ford dealers in the know are ecstatic but
have allot of stock to move but the fresh AUIII should help.

At long last, petrol heads rule the day.

And Holden are a year behind, all they have is a very old GenIII pushrod.

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post #5 of 19 (permalink) Old 11-13-01, 11:16 AM
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Ford Aus. are not using the 4.6l. They are using two versions of the 5.4l V8. One is known as the 3V, the other is the 4V (presumably, the number of values/cyl.)

The turbo will be single only.
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post #6 of 19 (permalink) Old 11-13-01, 01:09 PM
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So these engines will be different from the states,Or the latest ones out?? A leap ahead in design.I hope the bugs have been worked out..
post #7 of 19 (permalink) Old 11-19-01, 01:12 PM
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You may be interested to know Tickford are also developing a Turbo V8.

Some interesting developements on the Barra motor are
Direct Coil Ignition per plug (no more dizzy under the manifold Woo Hoo)
Twin Cam Head (already mentioned)
Carry over Intake Manifold
New Crank design

post #8 of 19 (permalink) Old 11-20-01, 08:01 AM
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3 valve??

One 5.4 is SOHC (one per cylinder bank, so it still has 2 cams) and the Cobra Engine with DOHC (two per bank, one cam for inlet one for exhaust each bank).

The SOHC is no slouch either. They have had this engine in the F150 SVT Lightning truck for the past three years with a super/c and they run 13 sec quarter mile times from the factory :)~
post #9 of 19 (permalink) Old 11-20-01, 08:04 AM
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Venom Xr.. mike mentioned the 3 vavle thing to me on club meeting night, i frankly dont believe it is anyting other than a inlet head design name.. E.G. like Clevelands heads had either 4V or 2V design. Didnt mean how many vavles it was running. the 4.6 modular has 4V and 2V version also.

Think about it. how would a 3 vavle per cylinder engine actually work/look?
post #10 of 19 (permalink) Old 11-20-01, 08:41 AM
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Which motor are you talking about? Both the mod motor range and the Windsor already have EDIS systems and have had for some time now.


C'mon dude, ou know better than that. Mercedes already has a 3 valve per chamber V8 in cars. It i probably done with a special rocker linking the 2 inlet valves (but dont quote me on that hehe). NO one talks about 2V and 4V head designs like the clevelands had anymore.

As to valve placement and size well the inlet valves are smaller than in a regular 2v head and placed next to each other with a larger (by comparison) exhaust valve placed opposite. The plug would be placed centrally. While the intake valves are smaller individually they allow for more total area hence their use. Since the head probably is sohc costs are kept down and the size of the upper head assembly can be smaller than a dohc design.
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