4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Advice needed on Exhaust Upgrade

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Old Sep 8, 2012 | 05:14 PM
  #11  
TRexGAWD's Avatar
TRexGAWD
4th Gear Member
 
Joined: Feb 2008
Posts: 1,761
From: Georgia
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Originally Posted by cliffyk
5-speed or automatic, if it's a 5-speed you have 4.10:1 gears.

Here is my "How Fast Can I Go in Each Gear" calculator, its use is straight-forward.

In the upper right corner there is a link to a pop-up "guesstimator" that will make a best effort attempt to determine your rear-end gear ratio based on speed and rpm in 4th gear (3rd for an auto, 4th gear is 1:1 for a 5-speed, 3rd is 1:1 on an auto--making the calculation universal)...
By the way, your calculator is giving an incorrect rear tire diameter for a 245/45/17.. It should be 25.6-25.7.. Not 24.9
Old Sep 8, 2012 | 05:31 PM
  #12  
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IMPORTDIS
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Joined: Dec 2003
Posts: 26
From: Franklin County PA
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Yes Sir, 5 Speed and 100% sure on the mph/rpms. Sweet deal on te 4.10's, one less upgrade to worry about. (thanks again for all the info cliffy) Originally I wanted to go with an X-pipe because I assumed that I would get more of a hp gain. But if it will be very little difference then my decision would be based on sound. I spent hours listening/watching YouTube videos (drooling) over different combo exhausts. Since I already have Flowmasters, the BBK LT headers with the H-pipe sounded hypnotizing and the price was right.
Old Sep 8, 2012 | 05:54 PM
  #13  
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scott4.6
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Joined: Jul 2011
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From: ky
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Originally Posted by IMPORTDIS
Yes Sir, 5 Speed and 100% sure on the mph/rpms. Sweet deal on te 4.10's, one less upgrade to worry about. (thanks again for all the info cliffy) Originally I wanted to go with an X-pipe because I assumed that I would get more of a hp gain. But if it will be very little difference then my decision would be based on sound. I spent hours listening/watching YouTube videos (drooling) over different combo exhausts. Since I already have Flowmasters, the BBK LT headers with the H-pipe sounded hypnotizing and the price was right.
Awesome choice. next should be TB, plenum, cai , underdrive pulleys and a BAMA tune from AM.
Old Sep 8, 2012 | 07:49 PM
  #14  
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IMPORTDIS
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Joined: Dec 2003
Posts: 26
From: Franklin County PA
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Thanks Scott, should have them installed here in the next week or so. Yup, already got a few of those goodies with more to come in the near future. Currently as the car sits:
-Cross-drilled/Slotted Rotors
-Motorsport Caster Chamber Plates
-Adjustable Tokico D-Spec Strut & Shock's
-BBK CAI
-BBK Power Plus 70mm Throttle Body
-Trick Flow upper intake plenum
-Ford Racing Intake Manifold
-Flowmaster 40's Catback
-Short Throw Shifter
-4.10 gears
-Nitto 555 275/40/ZR17
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