[wormster00]

I was wondering if anyone has swapped their stock gears for the 3.73s or 4.10s. I wanted to know what the difference in gas mileage was from stock. Also wanted to know what rpms I'd be taching at interstate speed...

Thanks!

[GTNorm]

I haven't done it, but mathematically it looks like for the 4.10s multiply your current rpms by 1.155 or for the 3.73s multiply by 1.05 to get the changed rpms.

[Drgnracin72]

http://www.moddedmustangs.com/forums...s-vt10472.html

[07BossGT]

I have had my mustang geared-up to 4.10 It's a 5-speed and I'm running about 2800-3000 @ 80mph. My gas mileage stayed about the same... CRAPPY. But I didn't buy it for mileage. Yea.... it's fast!

[miafan]

that'll conclude this thread

[sonicblue]

who buys a mustang for gas mileage anyways lol

[maverick]

but you could install a pc fuel managment system like a ferrari has

[MustangMatt]

4.10's, CAI, SCT tune and Steeda Exhaust. I drive about 85 MPH most of the time on the highway and average about 21 MPG. Only about 16 in the city but I drive like an idiot.

[1LOUDGT]

Well if you bought a gt for the gas mileage your a comlpete fucking idiot.

[1LOUDGT]

this is nick btw lol

[TheUNZippee!]

Originally Posted by 1LOUDGT Well if you bought a gt for the gas mileage your a comlpete fucking idiot.

Perhaps, but if you're an average Joe like me who can't afford two cars and has a commute, it might be important. All I can afford is to put mine up for the winter and spring for a shitty winter beater,other than that, in the summer, the Stang has to be fairly realistic mileage wise.I don't go around thinking it should be getting fantastic fuel economy, but since I commute quite a ways, I need at least 25 mpg out of a car to be able to use it every week.
If I hit the jackpot, I'll quit my job, ram a blown aluminum stroker in it, and say fuck the fuel mileage. lol Until then, it does hold some importance to some people.

Rick

[TDog]

Gears: Are great for the track, but street stuff. Not worth it. Remember, gears don’t give you more horsepower..nor more torque. They simply spread the same power drop thru a different spectrum of gears. 1, 2, 3 etc.. Your rpm's will change, but the power remains a constant.

[FastBack71]

yes.. But seriously 3.73's are the best gear 4.10's are to damn torquey.. 1st gear is useless and no way are you hookin up at all with stock tires.. 3.73's are the way to go IMO

plus you can without a problem at all do highway driving, at a low rpm.. doin 65mph in 4th gear.. someone rolls next to you slam it down to third and punch it and your gone..

[TDog]

Yup. Its all about driving and taste. Im quite happy w/stock on my manual 07 . I'm looking more at the power output now...

[TheUNZippee!]

All depends what you're into I guess. For the average guy who uses his car on the street, 3:55's with some decent power are more than enough, maybe 3:73's if you start getting into serious power, and 4:10's if your car sees mainly track time.If you don't really drag your car, you'll be sorry when you take your car on a road trip, unless you can afford to spring for a nice 6-speed tranny to compensate for the steep gear.

Rick

[1LOUDGT]

Upping your gears is like carrying a gun. You never want to use it but you know you have it just in case. If you do use it you don’t want to realize afterward that you should have bought a 45 cal instead of the 38 special. 3.73 for stick, 4.10 for automatic. If you’re a conservative driver don’t get gears at all.

MPH RPM
30- 1250
35- 1450
40- 1600
45- 1800
50- 1900
55- 2100
60- 2300
65- 2500
70- 2700
75- 2800
80- 2900

[wormster00]

Wow! You guys rock. I guess you could say I'm starting to care more about performance and less about mileage... My first car was a '74 Mercury Comet with a stock 302. Then I spent 12 years owning a Jeep Wrangler, but when I saw the new 2005s I lusted in my heart. So I've had my 2005 for almost a year now and my infatuation with its stock performance has begun to fade. I want MORE so I'm starting to figure out how to begin the process. Like most average Joes, I'm doing things one mod at the time due to the fact that last time I looked, money was NOT falling out of my butt.

My idea is to upgrade to 3.73s, then exhaust, then CAI and tuning...

Any thoughts... I am still fairly new to the modification game.

Jeff

[GTsetGO]

Originally Posted by sonicblue who buys a mustang for gas mileage anyways lol

+1

But I get anywhere from 23-26 on a highway trip and then about 18 around town.

[flattusmaximus78]

I think your cars lieing to you. My dads average speed is like 24.2 mph and he gets 14. something miles to the gallon.

[TheUNZippee!]

14 would be about right at that average speed. Take it out on the highway, set the cruise at 70, newer stangs will easily get 26.