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3.73's or 4.10's THE MASTER THREAD

Old 07-25-2007, 05:53 AM
  #11  
s197richie
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Default RE: 3.73's or 4.10's THE MASTER THREAD

ORIGINAL: 2007GT/CS

Here's the majority opinion:
[ul][*]3.73s for automatics and FI[*]4.10s for manuals[/ul]
+1 on this...as far as motive vs FRPP, it's all who you talk to...brent says his motive installs are quiet, but some swear the motives (and motive-manufactured FRPPs) are prone to whining...
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Old 07-25-2007, 06:01 AM
  #12  
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Default RE: 3.73's or 4.10's THE MASTER THREAD

3.73 for auto or DD FI cars
4.10 for manuals that NA'd - some even say 4.30's.

I have 4.10's and love them. My car is a semi DD (just not when its raining).
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Old 07-25-2007, 04:19 PM
  #13  
Daniel60
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Default RE: 3.73's or 4.10's THE MASTER THREAD

Man in my opinion you will have traction problems with 4:10s' and a supercharger.
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Old 07-25-2007, 07:30 PM
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Default RE: 3.73's or 4.10's THE MASTER THREAD

I am interested in this as well. This is my DD, and I have a manual with no interest in FI. What will my RPMs be @ 80mph with 4.10?
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Old 07-25-2007, 07:34 PM
  #15  
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Default RE: 3.73's or 4.10's THE MASTER THREAD

http://www.cherod.com/mustang/HowTo/RPM_vs_Speed~0.xls
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Old 07-25-2007, 07:42 PM
  #16  
fireguyty
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Default RE: 3.73's or 4.10's THE MASTER THREAD

Doh I don't have Excel.
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Old 07-25-2007, 07:45 PM
  #17  
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Default RE: 3.73's or 4.10's THE MASTER THREAD

The majority opinion has never been my opinion. I say 4.30.
When I had a 06 GT the difference between beating a POS SS camaro was real small, I had 4.30s, if I would have had 4.10s I would have lost instead of won.
That would have reall sucked.
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Old 07-25-2007, 07:53 PM
  #18  
fireguyty
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Default RE: 3.73's or 4.10's THE MASTER THREAD

Ran next door and used his comp. . .hehe. Awsome program!!! Thanks for the info. That will have to be my first upgrade.

BTW 07 Alloy GT Premium with 107.6 mi on it
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Old 07-26-2007, 12:00 AM
  #19  
jerjan
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Default RE: 3.73's or 4.10's THE MASTER THREAD

I got 3.73s and it feels like I'm always shifting gears since I supercharged , I can't imagine how much worse it would be with 4.10s. FI= 3.50s or 3.73s. NA=4.10s or 4.30s. IMHO.
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Old 07-26-2007, 12:45 AM
  #20  
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Default RE: 3.73's or 4.10's THE MASTER THREAD

How much do you do on gs mileage with 3:73's and 4:10's? Im gonna put in gears sometime this year but I want to know if my gas mileage is gonna drop badly. I drive my stang daily. Im gonna go with 4:10's if its not bad on gas and get Drag Radials, I want 4:10;s because its faster and i got an auto.i dnt race over 120-130 so top end is no problem.
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