Difference in Gas Mileage Between 3.73 and 4.10's

HMUSN · September 24th, 2007, 01:48 PM

you can also get a speed cal which is a cheaper way if you can't afford a tuner.

nikbait · September 24th, 2007, 01:52 PM

Yeah, I was thinking it was something like that, but since I plan on buying some kind of tuner, I think that will work. The tuners must be the thing that recalibrates the speedo..

Hunt_chevs · September 25th, 2007, 11:56 AM

Originally Posted by pa.ulB

yeah haha gas mileage who cares lol

californians care=+=
3.50 /gal in california,...

cbrown · September 30th, 2007, 07:32 AM

PRO50 RING & PINION SET 4.10 GEARS 8.8" Mustang
http://cgi.ebay.com/ebaymotors/PRO50...QQcmdZViewItem

Are these good 4.10 gears

cbrown · September 30th, 2007, 07:35 AM

How about these too?

http://cgi.ebay.com/ebaymotors/ws/eB...link:middle:us

Timm10221 · October 3rd, 2007, 10:40 AM

FRPP FTW

Hillsbaseball08 · November 10th, 2007, 11:12 PM

I have 3.73 and love it. You can't go wrong either way. Who gives a shit about gas milage.

fasterfrank · November 14th, 2007, 09:55 AM

I think of the gas I have to buy for my Mustang GT as :"Fun Juice"

Frank

TyCouey2000GT · November 20th, 2007, 11:09 AM

How much higher will 4.10's raise your rpms on a 2000 GT, lightly modded. And how much lower will it make your top speed?

mdvaldosta · November 20th, 2007, 11:16 AM

Top speed isn't gonna go down, as the stock gearing is gonna put you way higher than what the car's capable of anyways. In fact, top speed will probably go up switching to 4.10's as you'll be higher in the powerband where you'd need it to keep accellerating. At any rate, at 70mph in 5th gear you'd probably be around 2600 rpm's. In my 2002GT I'm at 2400rpm at 70 but my overdrive is a tad smaller than yours.

TyCouey2000GT · November 20th, 2007, 01:36 PM

So i'm guessing it raises your rpms around 3-400 or so?

SilverGT04 · November 28th, 2007, 05:08 PM

so how long does it take to break gears in and how much more does 4.10's pull than 3.73

the misfit wolfie · January 1st, 2008, 10:11 PM

Originally Posted by pa.ulB

yeah haha gas mileage who cares lol

yeah... people don't buy mustangs for the gas mileage.

GRAB_THS · January 2nd, 2008, 01:52 PM

It seems like I lost a small amount of gas mileage with JLT cai, and C&L plenum. I know it can't be heavy right foot syndrom...

Also, I heard FRPP is using Motiv gears, just what I heard

GRAB_THS · January 2nd, 2008, 01:54 PM

Originally Posted by fasterfrank

I think of the gas I have to buy for my Mustang GT as :"Fun Juice"

Frank

Fun juice so true...

Toms_2003_DSG_GT · January 3rd, 2008, 12:25 PM

Originally Posted by GRAB_THS

It seems like I lost a small amount of gas mileage with JLT cai, and C&L plenum. I know it can't be heavy right foot syndrom... Also, I heard FRPP is using Motiv gears, just what I heard

If I run the posted speed (no matter what everybody else is doing) this tank I got 22mpg and about 295 miles to a little over 13 gallons. Hell, I wish I had gone w/ 4.30's............................................ .............................................
Now if I could somehow squeeze a 30 gallon tank in place of the stocker Id be set

GRAB_THS · January 3rd, 2008, 04:48 PM

Originally Posted by Toms_2003_DSG_GT

If I run the posted speed (no matter what everybody else is doing) this tank I got 22mpg and about 295 miles to a little over 13 gallons. Hell, I wish I had gone w/ 4.30's............................................ .............................................
Now if I could somehow squeeze a 30 gallon tank in place of the stocker Id be set

I know with the 4.10s your engine is working less as hard as with let's say 3.27s. That will help in fuel economy...

Juggalo_X · January 3rd, 2008, 04:50 PM

i get better in town fuel millage with the 4.10's then i did with my 3.27's

Toms_2003_DSG_GT · January 3rd, 2008, 04:57 PM

Even though your rpms are higher? If Im running 75 my rpms are a little over 2500 and at 55 they are just under 2000rpm. If no expert on mechanics but I cant see how your engine is working easier with 4.10's.

Juggalo_X · January 3rd, 2008, 04:59 PM

Originally Posted by Toms_2003_DSG_GT

Even though your rpms are higher? If Im running 75 my rpms are a little over 2500 and at 55 they are just under 2000rpm. If no expert on mechanics but I cant see how your engine is working easier with 4.10's.

yep even at higher rpms. installing a steeper gear set puts more torque down. it doesn't add any just gets it to the ground better. there for your engine works less to keep a higher rpm.

September 24th, 2007, 01:52 PM	#122
nikbait Enthusiast Join Date: Feb 2007 Location: Kuna, Idaho Posts: 534	Yeah, I was thinking it was something like that, but since I plan on buying some kind of tuner, I think that will work. The tuners must be the thing that recalibrates the speedo.. __________________ 2003 Azure Blue Mach 1 5 Speed, IUP, MGW Short Shifter, 8" Chrome Shorty Antenna, MRT Hood Struts, C&L CAI

September 30th, 2007, 07:32 AM	#124
cbrown Regular 2004 Mustang GT Join Date: Aug 2007 Location: Mannheim, Germany Posts: 133	Are these good gears? PRO50 RING & PINION SET 4.10 GEARS 8.8" Mustang http://cgi.ebay.com/ebaymotors/PRO50...QQcmdZViewItem Are these good 4.10 gears __________________ CAI, o/r x-pipe, Flowmaster mufflers, 75mm TB,and a Predator tune, Soon to add: bbk shorty headers

September 30th, 2007, 07:35 AM	#125
cbrown Regular 2004 Mustang GT Join Date: Aug 2007 Location: Mannheim, Germany Posts: 133	How about these too? http://cgi.ebay.com/ebaymotors/ws/eB...link:middle:us __________________ CAI, o/r x-pipe, Flowmaster mufflers, 75mm TB,and a Predator tune, Soon to add: bbk shorty headers

November 10th, 2007, 11:12 PM	#127
Hillsbaseball08 Enthusiast 2002 Mustang GT 8.15@86 (1/8) Join Date: Oct 2007 Location: Fort Worth,Texas Posts: 528	I have 3.73 and love it. You can't go wrong either way. Who gives a shit about gas milage. __________________ 07 GT500 & 2002 GT: 100 Shot Of Nitrous, 75mm BBK Throttle Body and Plenum, C&L Intake, Flowmaster Exaust, Bassani X Pipes, 3:73 Gear Ratio, BBK Upper and Lower Control Arms, Pro 5.0 Shifter, DiabloSport Tune, Underdrive Pulleys, Line Lock.

November 14th, 2007, 09:55 AM	#128
fasterfrank Newbie Join Date: Jun 2007 Location: Bowie, MD Posts: 13	I think of the gas I have to buy for my Mustang GT as :"Fun Juice" Frank __________________ My car: 2002 Mustang GT, 35k miles, laser red. Lowered, Hotchkis, Camber plates, CAE, Flowmaster Cat back, Tune, 19" Privot wheels with 245/35/19 Toyo Proxie4's.

November 20th, 2007, 11:09 AM	#129
TyCouey2000GT Enthusiast 2000 Mustang GT Join Date: Jun 2007 Posts: 616	How much higher will 4.10's raise your rpms on a 2000 GT, lightly modded. And how much lower will it make your top speed? __________________ 00' GT Few boltons and full uxhaust including shortys

November 20th, 2007, 11:16 AM	#130
mdvaldosta Maintenance Man 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,945	Top speed isn't gonna go down, as the stock gearing is gonna put you way higher than what the car's capable of anyways. In fact, top speed will probably go up switching to 4.10's as you'll be higher in the powerband where you'd need it to keep accellerating. At any rate, at 70mph in 5th gear you'd probably be around 2600 rpm's. In my 2002GT I'm at 2400rpm at 70 but my overdrive is a tad smaller than yours.

November 20th, 2007, 01:36 PM	#131
TyCouey2000GT Enthusiast 2000 Mustang GT Join Date: Jun 2007 Posts: 616	So i'm guessing it raises your rpms around 3-400 or so? __________________ 00' GT Few boltons and full uxhaust including shortys

November 28th, 2007, 05:08 PM	#132
SilverGT04 Regular Join Date: Aug 2007 Posts: 315	hey so how long does it take to break gears in and how much more does 4.10's pull than 3.73

January 2nd, 2008, 01:52 PM	#134
GRAB_THS Newbie 2004 Musang GT Conv dunno yet... Join Date: Nov 2007 Location: Poquoson, VA Posts: 14	It seems like I lost a small amount of gas mileage with JLT cai, and C&L plenum. I know it can't be heavy right foot syndrom... Also, I heard FRPP is using Motiv gears, just what I heard __________________ 04 Gt Vert - 5 spd Pypes Off-road X, JLT CAI, C&L Plenum, Mach1 Chin Spoiler, Mach1 Grill Delete, 4.10's, Xcal2 More to come....someday in the 5 year plan

January 3rd, 2008, 04:57 PM	#139
Toms_2003_DSG_GT Newbie Join Date: Jan 2008 Posts: 12	Even though your rpms are higher? If Im running 75 my rpms are a little over 2500 and at 55 they are just under 2000rpm. If no expert on mechanics but I cant see how your engine is working easier with 4.10's.

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Difference in Gas Mileage Between 3.73 and 4.10's

Are these good gears?

hey