4.6L 4v Tech for the 4V Cobra motors and Mach 1

Numbers for 99 and 01's

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Old Dec 23, 2004 | 02:13 AM
  #1  
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Numbers for 99 and 01's

What is the Most Rwhp you have heard of from an 99 or 01 Cobra N/A??

A buddy is tuning a Nasty N/A 01 right now..
Old Dec 23, 2004 | 02:28 AM
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I would be very interested as I'm in the process of building my motor and NA is the likely outcome at this point.
Old Dec 23, 2004 | 02:44 PM
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I hit 305 RWHP on my 99 Cobra...and 311 tq

had the recall done

CAI
Steeda Pulleys
Steeda Timing Adjuster (timing locked at 14 degrees)
BBK T/B
K&N Airfilter
DiabloSport Computer Chip
Bassani X pipe
Magnaflow cat bac

seemed like a dog to get power out of it with simple bolt ons...one of the main reasons I sold it and bought the 04...
Old Dec 23, 2004 | 09:01 PM
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What heads and cams are they using? Ported Intake?

We have gotten 317/315 with LT's, 3" Exhauast, Pulleys, Custom Tune, CAI on a 01. Also a 98 Cobra with almost the same mods making 311/310

I am sure there are tons more with more power, quicker times, etc
Old Dec 24, 2004 | 12:17 PM
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I believe he is running the Full Gambit.. SHM stage 2 Ported Heads, Crower Cams. At idle it sounds Insane! very very bumpy Cams. All the bolt-ons.
Accufab and the STOCK MAF. Went back from (certain brand) back to Stock MAF gained 8rwhp and some had better drivability.
Full Exhaust with L Tubes
Custom Dyno Tune (Diablo Revolution)

Sits at 358rwhp. I will see if I can get some shots or video and more specs on this 01. I was pretty impressed with its N/A rwhp when I heard.

A Dyno tune is well worth the $$ almost always!

We feel its pretty much essential for all NOS and Charger/Turbo applications now.

I'm sure most installers and tuners would agree.

Last edited by techrtm; Dec 24, 2004 at 12:25 PM.
Old Dec 24, 2004 | 01:57 PM
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Sweeet, i want to hear this thing. The right cam(s) and exhaust on mod motored cars sound totally bad as$

Great numbers too
Old Jan 14, 2005 | 01:49 AM
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K here is the MACHINE!
wished the sound was better! could hear the idle better! its sick!

http://www.rtmmotorsports.com/Cammed01Cobra2.wmv

http://www.rtmmotorsports.com/Cammed01Cobra1.wmv
Old Jan 14, 2005 | 02:33 AM
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Originally Posted by techrtm
K here is the MACHINE!
wished the sound was better! could hear the idle better! its sick!

http://www.rtmmotorsports.com/Cammed01Cobra2.wmv

http://www.rtmmotorsports.com/Cammed01Cobra1.wmv
Nice! Wayne looks like he's having fun.
Old Jan 14, 2005 | 10:57 AM
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Sounds pretty good!
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