Is 400hp Possible
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Senior User
Joined: Dec 2004
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Is 400hp Possible
I Ahve A 5.4 L With The 265hp So I Gues Its The Newer Heads On It. And I Want To Try To Get 400hp Without Using A Supercharger, Turbo Or Nitrous. What Should I Get And Is It Possible, Or Could I Even Exceed This
Hotshot
Joined: Jun 2003
Posts: 12,341
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From: SW VA
High-compression pistons, port & polish, larger valves, cam, roller-rockers, larger fuel injectors, bigger fuel pump, cold air intake, exhaust system, computer chip/programmer, MSD ignition, spark plugs & wires...
Did I miss anything?
Did I miss anything?
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Joined: May 2004
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From: Melbourne, Aus
4V heads...
My Falcon ute (see gallery) makes an "alleged" 389hp at the flywheel from the factory without any form of forced induction.
In actual fact though, many 4V 5.4's here have been on chassis dyno's that indicate that they are making over 400hp.
My Falcon ute (see gallery) makes an "alleged" 389hp at the flywheel from the factory without any form of forced induction.
In actual fact though, many 4V 5.4's here have been on chassis dyno's that indicate that they are making over 400hp.
Postmaster
Joined: Aug 2003
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From: South Texas
Originally Posted by BigF350
4V heads...
My Falcon ute (see gallery) makes an "alleged" 389hp at the flywheel from the factory without any form of forced induction.
In actual fact though, many 4V 5.4's here have been on chassis dyno's that indicate that they are making over 400hp.
My Falcon ute (see gallery) makes an "alleged" 389hp at the flywheel from the factory without any form of forced induction.
In actual fact though, many 4V 5.4's here have been on chassis dyno's that indicate that they are making over 400hp.
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Joined: Dec 2001
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From: Louisville,Ky.
The 2000 Cobra R have a 5.4L DOHC engine and it made 385hp. If yu are using it in a heavy truck, to get 400hp will require larger cams and the usable rpm range will be too high for a truck and will be lacking in needed torque.
Supercharging or turbocharging is the easiest way and still be tame enough to drive everyday.
Supercharging or turbocharging is the easiest way and still be tame enough to drive everyday.
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From: duncan oklahoma
for the money you would have to spend for the 4 valve heads like,heads,intake,front over,chains,guides ,valve covers,wiring harness,computer, and so on.you could buy a super charger and do the install in a day in your driveway.
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i just think it would be cool to have the 4v. im more of a person who wants to do something diffrent than everyone else, and yea you have a good point but still it would be caool and i couldnt put the supercharger in anyways cuz i dont have much experience cuz im only 16
