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Old 06-01-2012, 11:04 AM   #1
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Default 700hp?

If it's true, I think I want one. Thousands cheaper than the 800hp twin turbo set up I saw at Hennessey.

http://www.roushperformance.com/part...2010-2012.html
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Old 06-01-2012, 11:14 AM   #2
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That would make one fun truck.
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Old 06-01-2012, 12:08 PM   #3
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Yeah, but you need to have a 6.2 handy. I don’t. I also live in California. I guess it wasn’t meant to be.
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Old 06-01-2012, 12:29 PM   #4
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I do. :-D
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Old 06-01-2012, 12:38 PM   #5
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Roush and every other blower is going to advertise what the blower is capable of efficiently handling, not what the truck will actually do. At 8lbs of boost, that 6.2 will not make 700hp. No way. The blower can make the power at higher boost levels, sure, but you have to have more supporting mods and other things to be able to produce that sort of power.

Also note that the same kit on the 5.0L trucks also is advertised as making UP TO 700hp. Same blower, same boost level, smaller motor. All they are advertising is what is capable of doing with all the extra mods you would need to support that kind of boost level, etc.

Not saying in ANY WAY AT ALL that Hennessey is worth what they charge as I fully believe its not, but they are going to be adding in all of those supporting mods and extras that this Roush kit won't have.

Bottom line, plan on spending thousands more in fuel upgrades, tuning, possibly engine internals, more cooling, etc above the $6200 to make 700hp. Roush makes an AWESOME kit as a good starting point, but you aren't going to make 700hp for 6 grand.
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Old 06-01-2012, 12:40 PM   #6
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I know that. I just haven't seem an SC that said its capable of 700 yet. Only 600.
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Old 06-01-2012, 12:50 PM   #7
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I want one for my 5.0 BADLY... I'm rushing to pay the truck off early so I can justify one
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Old 06-01-2012, 01:02 PM   #8
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I'm sure I'll wait until mine is paid off too. Hopefully that will be sometime next year.
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Old 06-01-2012, 01:08 PM   #9
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Quote:
Originally Posted by TJFX2EB View Post
Roush and every other blower is going to advertise what the blower is capable of efficiently handling, not what the truck will actually do. At 8lbs of boost, that 6.2 will not make 700hp. No way. The blower can make the power at higher boost levels, sure, but you have to have more supporting mods and other things to be able to produce that sort of power.

Also note that the same kit on the 5.0L trucks also is advertised as making UP TO 700hp. Same blower, same boost level, smaller motor. All they are advertising is what is capable of doing with all the extra mods you would need to support that kind of boost level, etc.

Not saying in ANY WAY AT ALL that Hennessey is worth what they charge as I fully believe its not, but they are going to be adding in all of those supporting mods and extras that this Roush kit won't have.

Bottom line, plan on spending thousands more in fuel upgrades, tuning, possibly engine internals, more cooling, etc above the $6200 to make 700hp. Roush makes an AWESOME kit as a good starting point, but you aren't going to make 700hp for 6 grand.
My 5.0 Mustang with an 82mm pulley made 524 at the wheels through an automatic. A 75mm pulley on the same blower on a 6.2 making 700 at the crank sounds possible to me.
Boost is really a measure of restriction, not how much air is moved. A blower can push more air at the same or lower psi depending upon the motor. EX: better intake and exhaust offer less restriction and could reduce psi at a given blower speed.

No argument about fuel upgrades, i don't know what the stock 6.2 fuel system is capable of. My mustang is making the numbers above on the stock pump with larger injectors that came in the kit.
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Old 06-01-2012, 01:54 PM   #10
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i went on Roush website and read thru the whole 104 pages of installation for my '05 this is something i need to do ASAP, it does not seem to difficult to do as long as i have the patience to walk myself thru it, all part are included
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Old 06-01-2012, 01:54 PM
 
 
 
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