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Old 03-10-2009, 11:01 PM
  #11  
mustangman281
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Originally Posted by tws1098
please look around the site before posting a question that is put up everyday. There is a link in my sig that will answer a lot of your questions. Use that first, then ask more questions if you need to, I/we all will be happy to help.

BTW NOS is a company, nitrous would be the better term to go with.

EDIT: And please resize the picture in your sig or go over to the S197 section.
He spelled NOS wrong anyway, it NAAAWWWZZZ!
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Old 03-10-2009, 11:21 PM
  #12  
_Slowbra_
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Originally Posted by mustangman281
He spelled NOS wrong anyway, it NAAAWWWZZZ!
lol...

do gears and you probably dont need a whole new differential. 4.10s should give a nice kick in the saddle.
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Old 03-10-2009, 11:46 PM
  #13  
DarkShadow04
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and if you use dr's youll snap your axels! hope you dont plan on goin to the track! lol... you are playing a game of chance by not doing the axels, a chance im not gonna take. for normal driving just gears are fine. if you plan on going to the track, even casually, on dr's, gotta do the axels, or youll be callin in a flatbed to get home =[ i had a whole thread about this like a week ago, lol, ill find it tomorrow
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Old 03-11-2009, 11:10 AM
  #14  
socalwrench
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Originally Posted by bigpatsgt
thanks SOCAL and TWS... thanks mom. I'll be sure to cross my I's and dot my T's next time. Sorry about the sig, is huge I know.
heh. I think you mean DOT you I's and CROSS your T's. just joking with ya.

anyway, I agree with the other guys- swapping out gears will give you the much better acceleration- particularly off the line. 4.10s may be a bit steep though, as your cruising RPM will be fairly high. 3.73 is the highest I would go with a daily driven street car. of course, this also depends on what ratio you already have. the bigger the difference, the more you will feel it.
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Old 03-11-2009, 05:52 PM
  #15  
ddmsgtr1
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Plenty of people on here have reported getting gas mileage just as good, some better, with 4.10s over stock. It's all how you drive it, but alot of people will tell you they've gone with 3.73s only to wish they had gotten 4.10s.
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Old 03-12-2009, 10:34 AM
  #16  
socalwrench
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Originally Posted by ddmsgtr1
Plenty of people on here have reported getting gas mileage just as good, some better, with 4.10s over stock. It's all how you drive it, but alot of people will tell you they've gone with 3.73s only to wish they had gotten 4.10s.
I really don't know how that's possible. The engine is revving higher when cruising. The higher revs require more air and fuel. There's no way around that.

And, you cannot argue the power needed VS fuel used theory because the car was already producing sufficient power before the gear swap.

Top Gear did a fuel mileage comparison a while back between a Toyota Prius and a BMW M3 (V8). The M3 averaged BETTER mileage than the Prius. This is because the Prius required more work from the engine to reach highway speeds. The BMW had plenty of power and did not require much throttle at all. So I understand your point, but it does apply to our Mustang. This is also why the new 2010 GT500 now uses 3.55 gears- better mileage.
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Old 03-13-2009, 01:13 AM
  #17  
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Originally Posted by socalwrench
This is also why the new 2010 GT500 now uses 3.55 gears- better mileage.
who buys a GT500 for the mileage? jk

cruising isnt too bad from what i hear with 4.10s, dime had a whole thread about it a while ago...
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Old 03-13-2009, 10:10 AM
  #18  
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Lol. That's a good point. I think Ford was advertising +2 MPG for the 2010 GT500. I'm sure people who buy one, don't worry too much about fuel mileage.

Remember, tire diameter will also affect the outcome.
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