Difference in Gas Mileage Between 3.73 and 4.10's

gills99stang · January 15th, 2007, 10:59 PM

Ha who really goes that fast? I've hit 144 in mine with 4:10 gears and could have gone faster, but I'm worried about tire blowout at that point.

StangAddiction · January 16th, 2007, 04:04 PM

I say go for 3.73s if u suck at launches...

Go for 4.10s if you know what the hell you're doin...

White99stang · January 16th, 2007, 04:57 PM

why slow your car down if you don't know how to drive, learn how to drive and keep the 4.10's. You guys are killing me.

gills99stang · January 16th, 2007, 10:37 PM

Hey Tim have you heard anything about when MAS is going to open back up?

[I'm stealing this thread because it's been going on way too long.]

mnrlgry99gt · January 21st, 2007, 01:34 AM

Originally Posted by gills99stang

Ha who really goes that fast? I've hit 144 in mine with 4:10 gears and could have gone faster, but I'm worried about tire blowout at that point.

Yeah I agree, We got plenty of top end it's our launches that usually blow. The 5.0's in my club drill me off the line all the time even with less hp. That's why I'm getting the 4.10's installed. There mayeven be a 2600rpm stall Torque Converter in my future as well. hehe

00'GT · January 28th, 2007, 11:57 AM

/agree 4.10's ftw

Timber · January 29th, 2007, 11:55 AM

My car isn't supercharged but will be running a 125 shot of nitrous. Should I get 3.73's or 4.10's?

White99stang · January 29th, 2007, 01:27 PM

4.10

Timber · January 29th, 2007, 02:17 PM

Originally Posted by White99stang

4.10

Thank you, sir.

GTXRacing · February 22nd, 2007, 06:01 PM

Originally Posted by FastBack71

You definitely lose top speed with 4.10's and you dont lose top speed really with the 3.73 so if you are planning to do 150+ you should keep 3.73 lol

GET 4.10'S!!!

Not being mean, but I read your post like three times to make sure my dumbass dumbo brain aint fried for the day... First you same to keep the 3.73's, then turn around and say get the 4.10's? which is it?

MustangMatt96GT · February 22nd, 2007, 06:34 PM

he is saying that if ur stupid enough to be going more than 150 MPH on public roads then get the 3.73s, but if ur just looking for something to put ur ass in the back seat when u jump on it get the 4.10's

Screemin3o2 · February 22nd, 2007, 06:43 PM

its a ratio, it doesnt all of the sudden have some dramatic jump of high speed loss just between 3.73s and 4.10s. You will keep losing the more of a low gear you go. Even if you switch from 3.08s to 3.55s you will lose high speed. It's the rules of gear reduction.

TheManInBlack · March 2nd, 2007, 06:56 PM

just ordered me some 4.10s!! cant wait to see the difference over stock gearing...

and later this year i plan to go with a vortech. 8-10lbs of boost

bransdaman78 · April 12th, 2007, 11:56 AM

actually the 4.10 should still top out at 170-175 if you had the power, nobody should be going over 150 in a mustang anyway, unless your some kind of autocross racer or something... or your running 8's

so basically if your concerned about mileage keep your stock gear.. if you want a little pick up w/o loosing much highway economy get a 3.73. If you want to have a faster car, dont care about losing 2-3mpg get a 4.10

mustang500hp · April 17th, 2007, 02:29 PM

yeah i was wondering , not to be a smart ass or anything white99stang lol
but i have a 98 gt, im running 10psi with 3.73 gears, but im waiting on a stronger block so i can get to about 20 psi, should i just keep the 3.73 gears?

DrHolliday · April 19th, 2007, 03:05 PM

Just to let you guys know, my first tank of fuel with 4.10's averaged 20 mpg.... I am taking it as easy on the car, and thats better on fuel then I got stock.

Jeff99gt · April 23rd, 2007, 02:14 PM

okay gas mileage is the same but what would the top speed be for a 1999 mustang gt auto with 4.10's? (i like to go fast)

White99stang · April 23rd, 2007, 04:19 PM

dude i doubt you have the power to top your car out anyways, quit worrying about top speed, you fucking kids are driving me nutz. You are going to kill someone and then make all us real enthuesiests look bad cause you are being a fucking dumb shit. You know if you are worried about top speed go buy some 2.90 gears and go top your car out and run it off a cliff with you in it.

gills99stang · April 23rd, 2007, 04:22 PM

I've hit 144 in my '99 GT stick... but at that point the stick started vibrating like crazy. What's the point of going any faster than that? It's crazy. Blow a tire and you're DONE.

I'll probably never go that fast again... I don't see the point in it. The only reason I went that fast was because I had a mile and a half straightaway with no cars as far as the eye could see and I wanted to see how fast I could run.

gills99stang · April 23rd, 2007, 04:27 PM

Originally Posted by White99stang

dude i doubt you have the power to top your car out anyways, quit worrying about top speed, you fucking kids are driving me nutz. You are going to kill someone and then make all us real enthuesiests look bad cause you are being a fucking dumb shit. You know if you are worried about top speed go buy some 2.90 gears and go top your car out and run it off a cliff with you in it.

I'm with you brother!

January 15th, 2007, 10:59 PM	#21
gills99stang Hardcore Enthusiast 1999 Mustang GT 13.4 @ 100 Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 2,452	Ha who really goes that fast? I've hit 144 in mine with 4:10 gears and could have gone faster, but I'm worried about tire blowout at that point. __________________ Brendan '99 Mustang GT [318 rwhp N/A] For Sale: 2003 Boyd Coddington / Roush California Roadster http://www.moddedmustangs.com/forums...-roadster.html

January 16th, 2007, 10:37 PM	#24
gills99stang Hardcore Enthusiast 1999 Mustang GT 13.4 @ 100 Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 2,452	Hey Tim have you heard anything about when MAS is going to open back up? [I'm stealing this thread because it's been going on way too long.] __________________ Brendan '99 Mustang GT [318 rwhp N/A] For Sale: 2003 Boyd Coddington / Roush California Roadster http://www.moddedmustangs.com/forums...-roadster.html

January 28th, 2007, 11:57 AM	#26
00'GT Newbie Join Date: Dec 2006 Location: Virginia Posts: 6	/agree 4.10's ftw __________________ Courchaine #556 2000 GT Vert

January 29th, 2007, 11:55 AM	#27
Timber Enthusiast Join Date: Dec 2006 Location: No point mentioning those bats... Posts: 834	My car isn't supercharged but will be running a 125 shot of nitrous. Should I get 3.73's or 4.10's? __________________

February 22nd, 2007, 06:43 PM	#32
Screemin3o2 Enthusiast Join Date: Jun 2006 Location: Knoxville, TN Posts: 617	its a ratio, it doesnt all of the sudden have some dramatic jump of high speed loss just between 3.73s and 4.10s. You will keep losing the more of a low gear you go. Even if you switch from 3.08s to 3.55s you will lose high speed. It's the rules of gear reduction. __________________ 95 Mustang GT Slow Bolt On Car http://img61.imageshack.us/img61/8386/sig4rx2.jpg www.steelcitystangs.com

January 16th, 2007, 04:04 PM	#22
StangAddiction Enthusiast 2000 Mustang GT Join Date: Jan 2007 Location: Virginia Beach Posts: 869	I say go for 3.73s if u suck at launches... Go for 4.10s if you know what the hell you're doin...

February 22nd, 2007, 06:34 PM	#31
MustangMatt96GT I Post Entirely Way Too Much 1996 Mustang GT 19.090@71.46 Join Date: Dec 2006 Location: Lakewood, CO Posts: 6,912	he is saying that if ur stupid enough to be going more than 150 MPH on public roads then get the 3.73s, but if ur just looking for something to put ur ass in the back seat when u jump on it get the 4.10's

March 2nd, 2007, 06:56 PM	#33
TheManInBlack Regular Join Date: Nov 2006 Posts: 96	just ordered me some 4.10s!! cant wait to see the difference over stock gearing... and later this year i plan to go with a vortech. 8-10lbs of boost __________________ 2002 Mustang GT, BBK LTs, X-pipe, Bassani BX, MGW Shifter, FRPP 4.10s, Moser 31s, Cobra diff, SCT Xcal2, JLT CAI, Accufab 75mm TB/Plenum, eibach sportlines, strange adj struts, tubular control arms, and One Heavy Foot....

April 12th, 2007, 11:56 AM	#34
bransdaman78 Regular Join Date: Mar 2007 Posts: 453	actually the 4.10 should still top out at 170-175 if you had the power, nobody should be going over 150 in a mustang anyway, unless your some kind of autocross racer or something... or your running 8's so basically if your concerned about mileage keep your stock gear.. if you want a little pick up w/o loosing much highway economy get a 3.73. If you want to have a faster car, dont care about losing 2-3mpg get a 4.10 __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

April 17th, 2007, 02:29 PM	#35
mustang500hp Newbie Join Date: Apr 2007 Posts: 27	yeah i was wondering , not to be a smart ass or anything white99stang lol but i have a 98 gt, im running 10psi with 3.73 gears, but im waiting on a stronger block so i can get to about 20 psi, should i just keep the 3.73 gears? __________________ 1998 mustang GT 4.6l-cobra R rims/Hood -vortec supercharger(10psi) could (30psi) -stage 2 cams-BBK shorty ceramic headers -Flowmaster dual exhaust 3 1/2 inch -3.73 gears-subframe connecters -goodyear eagle F1 -sct ford programmer

April 19th, 2007, 03:05 PM	#36
DrHolliday Enthusiast Join Date: Mar 2007 Location: New Port, NC Posts: 707	Just to let you guys know, my first tank of fuel with 4.10's averaged 20 mpg.... I am taking it as easy on the car, and thats better on fuel then I got stock. __________________ Mustangless atm 2006 2500 HD Diesel.

April 23rd, 2007, 02:14 PM	#37
Jeff99gt Regular Join Date: Oct 2006 Location: Morgan hill CA Posts: 307	okay gas mileage is the same but what would the top speed be for a 1999 mustang gt auto with 4.10's? (i like to go fast) __________________ http://i168.photobucket.com/albums/u...ff99gt/yea.jpg

April 23rd, 2007, 04:22 PM	#39
gills99stang Hardcore Enthusiast 1999 Mustang GT 13.4 @ 100 Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 2,452	I've hit 144 in my '99 GT stick... but at that point the stick started vibrating like crazy. What's the point of going any faster than that? It's crazy. Blow a tire and you're DONE. I'll probably never go that fast again... I don't see the point in it. The only reason I went that fast was because I had a mile and a half straightaway with no cars as far as the eye could see and I wanted to see how fast I could run. __________________ Brendan '99 Mustang GT [318 rwhp N/A] For Sale: 2003 Boyd Coddington / Roush California Roadster http://www.moddedmustangs.com/forums...-roadster.html

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