Rear gear\Tune help!

XxstarspyXX · December 30th, 2011, 03:30 PM

I got a SCT Tuner about 4 months ago and I tuned my car for 373 rear gears....

(My previous owner said he had 373 rear gears installed but the car doesnt have a Tlock) (Which made me think today that maybe i dont have 373's)...

So Today i returned my car to stock and i saw a big difference in RPMS (obviously)...Then i entered a destination on my gps and it said 3 Miles and i reset my tripmeter, and when i reached my destination it said 3.0 miles, which is what my gps said it would be....

I also checked my speed when i was driving and my speedometer and the gps were off by like 1-2mph sometimes...

Does this mean that i dont have 373 rear gears? Because all this time ive been running the tune for it and it seems like i dint have them on my car

SlowSix · December 30th, 2011, 03:35 PM

sounds like you don't have 3.73s

XxstarspyXX · December 30th, 2011, 03:59 PM

Originally Posted by 01SilverSixer

sounds like you don't have 3.73s

Yeah lol...

Does that means ive been racking up more miles than ive driven or less miles?

qwiksilvermustang · December 30th, 2011, 08:09 PM

Sounds like previous owner was trying to get more money for his car?

XxstarspyXX · December 30th, 2011, 10:38 PM

I guess but I'm still kinda mad that I had the car tuned for them

mcqueen · December 30th, 2011, 11:08 PM

Originally Posted by qwiksilvermustang

Sounds like previous owner was trying to get more money for his car?

I'd personally pay less for a car with gears than a stock one. Gears ensure that the car has been beat on.

Skargon · December 30th, 2011, 11:34 PM

Originally Posted by mcqueen

I'd personally pay less for a car with gears than a stock one. Gears ensure that the car has been beat on.

+1

Mana_MGT · December 31st, 2011, 12:17 AM

so now you have a great excuse to go 4.10s

XxstarspyXX · December 31st, 2011, 11:14 AM

Originally Posted by mcqueen

I'd personally pay less for a car with gears than a stock one. Gears ensure that the car has been beat on.

That is true haha, but does anyone know if i racked up more or less miles than i actually have since i had the car tuned for non existing 373s?

Also i cant install anything thatll drop my MPG bc i already get like 13-14mpg which sucks

I really hope i dint rack up too much extra miles if thats what happens

bigjohnstud4200 · December 31st, 2011, 11:37 AM

Another thing, you can have different gears and NOT have a Tlok on the V6.

qwiksilvermustang · December 31st, 2011, 04:09 PM

well i would think less miles because you told it for every one rotation of the wheels you were turning the output shaft 3.73 times instead of 3.27....as you can see though thats not too much of a difference though it will read the output shaft sensor instead of the wheels....this is also probably the cause of your shitty mileage....

ESG-642T · December 31st, 2011, 04:57 PM

Originally Posted by XxstarspyXX

That is true haha, but does anyone know if i racked up more or less miles than i actually have since i had the car tuned for non existing 373s?

Also i cant install anything thatll drop my MPG bc i already get like 13-14mpg which sucks

I really hope i dint rack up too much extra miles if thats what happens

How do you drive to get 13mpg?!

Reaper_88 · December 31st, 2011, 05:22 PM

^This.

Dude lay off the gas pedal a bit haha

mustangmike! · December 31st, 2011, 08:41 PM

Who tuned it ?

Lay off pedal

Lift your rear and spin it and see how many revs you get ... (if you dont understand that, jsut google this stuff, plenty of explinations of how to test your gears.)

And worry about a tune up if your getting that shitty of mpg ...

XxstarspyXX · January 1st, 2012, 02:13 PM

Originally Posted by ESG-642T

How do you drive to get 13mpg?!

Im not sure, my mechanic said its because i have a 2 12' subs in the trunk, and i have 10.5 rears with 295 tires, causing my car to be heavier.....

And trust me..I travel 20 miles a day, im not a superspeeder im calm on the pedal.. i literally switch at 2k rpms and cruise in 5th gear.... I still get 13-15 MPG

And its bama tuned

bigjohnstud4200 · January 1st, 2012, 02:20 PM

Originally Posted by XxstarspyXX

Im not sure, my mechanic said its because i have a 2 12' subs in the trunk, and i have 10.5 rears with 295 tires, causing my car to be heavier.....

And trust me..I travel 20 miles a day, im not a superspeeder im calm on the pedal.. i literally switch at 2k rpms and cruise in 5th gear.... I still get 13-15 MPG

And its bama tuned

Get a new mechanic. My SUV does even drop that low hauling 4000lbs.

You need to find your problem and it's not the 50lbs on your trunk.

XxstarspyXX · January 1st, 2012, 02:27 PM

Originally Posted by bigjohnstud4200

Get a new mechanic. My SUV does even drop that low hauling 4000lbs.

You need to find your problem and it's not the 50lbs on your trunk.

I know, Thats what i figured. But honestly i give up trying to find out the problem because first they told me it needs a tune up and some new brakes and rotors, spent around $800 on that...

Then they said i should get a TUNE, so i spent $370 on the SCT tuner,

And still i get the same mpg so i gave up on fixing it lol

6ixer · January 1st, 2012, 02:39 PM

i dont even get 13mpg in my stang with 3.73 when i kept my foot into it i got like 15-17 lol

SALEEN961 · January 1st, 2012, 03:44 PM

Originally Posted by XxstarspyXX

...i literally switch at 2k rpms and cruise in 5th gear.... I still get 13-15 MPG

That might be part of your problem, I know that I get the best mileage running 2000-3000RPM, but if I'm at a steady low speed cruise with almost no throttle I'll let it drop down as low as 1750RPM since I'm basically coasting.

XxstarspyXX · January 2nd, 2012, 03:06 AM

Oh wow i thought the lower RPMS = better gas mileage

December 30th, 2011, 03:30 PM	#1
XxstarspyXX Regular 2002 V6 Join Date: Feb 2011 Location: Westchester, New York Posts: 457 iTrader: 0 reviews	Rear gear\Tune help! I got a SCT Tuner about 4 months ago and I tuned my car for 373 rear gears.... (My previous owner said he had 373 rear gears installed but the car doesnt have a Tlock) (Which made me think today that maybe i dont have 373's)... So Today i returned my car to stock and i saw a big difference in RPMS (obviously)...Then i entered a destination on my gps and it said 3 Miles and i reset my tripmeter, and when i reached my destination it said 3.0 miles, which is what my gps said it would be.... I also checked my speed when i was driving and my speedometer and the gps were off by like 1-2mph sometimes... Does this mean that i dont have 373 rear gears? Because all this time ive been running the tune for it and it seems like i dint have them on my car __________________ Selling Chrome Black Saleens + Mustang GT4 Rims http://www.moddedmustangs.com/forums...al-pickup.html

December 30th, 2011, 03:35 PM	#2
SlowSix Formerly 01silversixer 2001 V6 15.47@89.57 Join Date: May 2010 Location: Pittsburgh, PA Posts: 3,471 iTrader: 1 reviews	sounds like you don't have 3.73s __________________ Build Thread

December 30th, 2011, 08:09 PM	#4
qwiksilvermustang Enthusiast 1999 Mustang Pony Not even currently moving Join Date: Mar 2010 Location: Ft. Bragg Posts: 631 iTrader: 2 reviews	Sounds like previous owner was trying to get more money for his car? __________________ lt's,o/r h, flow 40's, egr delete,windstar w/65mm tb,UDP, sniper tuned Need to install: 4.2 crank,.030 silvo's,268hr112 cam,RR's,comp 915's

December 30th, 2011, 10:38 PM	#5
XxstarspyXX Regular 2002 V6 Join Date: Feb 2011 Location: Westchester, New York Posts: 457 iTrader: 0 reviews	I guess but I'm still kinda mad that I had the car tuned for them __________________ Selling Chrome Black Saleens + Mustang GT4 Rims http://www.moddedmustangs.com/forums...al-pickup.html

December 31st, 2011, 12:17 AM	#8
Mana_MGT Hardcore Enthusiast 2003 Mustang GT 15.8@ 100-ish Mph Join Date: Jun 2010 Location: Dubai - UAE Posts: 1,376 iTrader: 0 reviews	so now you have a great excuse to go 4.10s __________________ Dark Shadow Gray 1 mod or 2 Thanks to Sarah for the Sig!! http://www.moddedmustangs.com/forums...-member-35708/ MM DSG Crew Member#3

December 31st, 2011, 04:09 PM	#11
qwiksilvermustang Enthusiast 1999 Mustang Pony Not even currently moving Join Date: Mar 2010 Location: Ft. Bragg Posts: 631 iTrader: 2 reviews	well i would think less miles because you told it for every one rotation of the wheels you were turning the output shaft 3.73 times instead of 3.27....as you can see though thats not too much of a difference though it will read the output shaft sensor instead of the wheels....this is also probably the cause of your shitty mileage.... __________________ lt's,o/r h, flow 40's, egr delete,windstar w/65mm tb,UDP, sniper tuned Need to install: 4.2 crank,.030 silvo's,268hr112 cam,RR's,comp 915's

December 31st, 2011, 05:22 PM	#13
Reaper_88 [{4114 K-73}] 2000 Mustang V6 Manual Join Date: Nov 2011 Location: San Diego, CA Posts: 927 iTrader: 1 reviews	^This. Dude lay off the gas pedal a bit haha __________________ BAMA-K&N-C&L-TI LLC-VAP Auto-Steeda-MAC-Thrush-Koni-H&R-Maximum Motorsports WTB MAC Flow Path mufflers or Bassani mufflers PM me if you have a pair

December 31st, 2011, 08:41 PM	#14
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	Who tuned it ? Lay off pedal Lift your rear and spin it and see how many revs you get ... (if you dont understand that, jsut google this stuff, plenty of explinations of how to test your gears.) And worry about a tune up if your getting that shitty of mpg ... __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

January 1st, 2012, 02:39 PM	#18
6ixer Hardcore Enthusiast 2000 mustang v6 14.6@99.68 Join Date: Apr 2010 Location: east greenbush, ny Posts: 1,567 Blog Entries: 3 iTrader: 0 reviews	i dont even get 13mpg in my stang with 3.73 when i kept my foot into it i got like 15-17 lol __________________ Ported heads, comp cams cam, AM CAI, posi'd rear with 3.73 gears, flowmaster exhaust Fixed clutch!!!!! "My mustang likes a good ol' fashion bowl of rice....especially fried"

January 2nd, 2012, 03:06 AM	#20
XxstarspyXX Regular 2002 V6 Join Date: Feb 2011 Location: Westchester, New York Posts: 457 iTrader: 0 reviews	Oh wow i thought the lower RPMS = better gas mileage __________________ Selling Chrome Black Saleens + Mustang GT4 Rims http://www.moddedmustangs.com/forums...al-pickup.html

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