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09-05-2006, 03:39 PM
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#1
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Roush 427R Most Powerful Roush Ever
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Eyes So Tight I Pass For An Asian
Join Date: May 2003
City: Huntsville
State: Alabama
Posts: 27,137
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Jack Roush has had his name associated with the Ford Mustang since he debuted the first Roush Mustang at the 1995 Sema show. Roush has come along way since 1995 and has now introduced the Roush 427R Mustang based on the new S197 Mustang platform. The Roush 427R is the most powerful Roush Mustang in existence producing 427 Horsepower, hence where the number 427 comes from in the name.
Outside of the power numbers buyers will be treated with 18″ chrome wheels, stripe package and exclusive badging. The Roush 427R also comes with a much more fine tuned suspension setup than the Stage 3 Roush Mustang. Buyers will also be able to customize their 427R a bit more by selecting from a list of accessories to add to their 427R.
Roush 427R Mustang
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09-05-2006, 06:14 PM
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#2
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Re: Roush 427R Most Powerful Roush Ever
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Senior Member
Join Date: Jul 2006
State: South Carolina
Posts: 3,747
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I alway like the idea of a better Mustang, but this car need more like 500+ horsepower, then it could compete with a Saleen S281 Extreme. The Stage 3 already has 415 hp. Still I like the knew Roush Mustangs alot. Maybe this car will be better on a road course than a Stage 3.
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09-05-2006, 07:38 PM
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#3
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Re: Roush 427R Most Powerful Roush Ever
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broken hearted
Join Date: Jan 2005
State: New Jersey
Posts: 5,621
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__________________
In God We Trust. All Others Checked NCIC.
Full Roush Kit + Dual Side Exit Exhaust, Steeda Ultralite IIs and a lot more to come..its a work in progress
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09-05-2006, 10:44 PM
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#4
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Re: Roush 427R Most Powerful Roush Ever
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BORLACATBACKOMFG
Join Date: Apr 2006
City: Starkville/Tupelo
State: Mississippi
Posts: 1,789
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sweet Jesus.
I want one.
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2004 40th Ann. redfire 4.6L GT / 1994 rio red v6 vert / 1990 7UP LX vert
2815
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09-06-2006, 01:14 AM
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#5
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Re: Roush 427R Most Powerful Roush Ever
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Registered User
Join Date: Apr 2004
State: California
Posts: 9,197
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09-06-2006, 09:07 AM
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#6
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Re: Roush 427R Most Powerful Roush Ever
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 6,151
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__________________

Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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09-06-2006, 03:22 PM
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#7
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Re: Roush 427R Most Powerful Roush Ever
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Bob is Good.
Join Date: Jun 2004
City: Greenville
State: Texas
Posts: 5,169
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I think I'm gonna have to get the Roush front bumper and wheels for the 06...
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09-06-2006, 10:51 PM
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#8
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Re: Roush 427R Most Powerful Roush Ever
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No more obstacles
Join Date: Jul 2005
City: Marin County, Nor Cal
State: California
Posts: 893
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I'd like to see someone make a production 4.6 NA motor putting down 400 rwhp. Anyone can stroke a motor or slap on an SC. No imagination in that.... I love it when I see people with na motors putting down huge numbers due to their insight and knowledge of what combinations work.
__________________
99 Cobra: flowmasters, 18x9.5 cobra R's, soon to be tuned and geared. daily driver
99 V6:in avatar, Mac Cai, true duals/flowmaster 40's ,UDP, custom tuned, bullitt suspension 18" wheels...taken by mother nature
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10-26-2006, 03:29 PM
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#9
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Re: Roush 427R Most Powerful Roush Ever
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Senior Member
Join Date: Jul 2006
State: South Carolina
Posts: 3,747
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 I'm a little confused. If this car is suppose to be a step above the Stage 3 then why do they come with the stock GT brakes, and not the big brakes found on the Stage 3's. I looked at 4 of them on ebay, and didn't 1 have anything but stock brakes. 
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10-26-2006, 04:14 PM
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#10
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Re: Roush 427R Most Powerful Roush Ever
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Jeep Boy
Join Date: May 2003
City: Harvest
State: Alabama
Posts: 12,317
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__________________
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10-27-2006, 12:09 AM
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#11
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Re: Roush 427R Most Powerful Roush Ever
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Stangless
Join Date: Jul 2006
City: Flat Top Mtn
State: Tennessee
Posts: 1,126
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saw one on ebay last week is was very nice
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10-27-2006, 01:11 AM
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#12
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Re: Roush 427R Most Powerful Roush Ever
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^needs more bondo
Join Date: Sep 2003
City: Modesto
State: California
Posts: 9,573
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there just isnt enough displacement to make more than 350 on a 4.6. even the 5.4's with worked 4v heads, headerback exhaust, badass intake work, tuned, could only do 360 to the wheels.
n/a power needs displacement. a modular just doesnt have it, but it shines when you force air into it.
__________________
-Thomas-

2003 Redfire Cobra "Ruby" - Mine Again!
1990 Eclipse GSX - Project "What the Hell is that clunking noise and where did my power steering go?!"
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10-27-2006, 07:15 AM
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#13
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Re: Roush 427R Most Powerful Roush Ever
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Bob is Good.
Join Date: Jun 2004
City: Greenville
State: Texas
Posts: 5,169
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It would be very, very difficult to get that much power out of the 4.6 in N/A form. You'll never it in a production vehicle, I can guarantee you that. The heads would have to flow ridiculous numbers, the cams would have to be huge, and it would have to be able to turn around 8000 RPM. It would have absolutely no low-end or mid-range power, and it definitely wouldn't be something you'd want to drive every day.
However... I'd say it's definitely possible.
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10-27-2006, 08:31 AM
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#14
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Re: Roush 427R Most Powerful Roush Ever
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Stangless
Join Date: Jul 2006
City: Flat Top Mtn
State: Tennessee
Posts: 1,126
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Hmm wonder if anyone ever bid over 500.25 on that car 
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10-27-2006, 09:56 PM
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#15
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Re: Roush 427R Most Powerful Roush Ever
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No more obstacles
Join Date: Jul 2005
City: Marin County, Nor Cal
State: California
Posts: 893
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a handful of people have done it from this forum: Pics - 408 RWHP 99 NA Cobra - SVTPerformance
the guy pulled out every trick to get it but he's not the only one. I've seen others put down around 410rwhp that are all NA.
The bigger the cam doesn't necesarily mean more power. Properly flowed heads and intakes along with high compression and a bad ass tune can make a world of difference.
__________________
99 Cobra: flowmasters, 18x9.5 cobra R's, soon to be tuned and geared. daily driver
99 V6:in avatar, Mac Cai, true duals/flowmaster 40's ,UDP, custom tuned, bullitt suspension 18" wheels...taken by mother nature
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