*!!!MUSTANGBOARD's OFFICIAL GEAR THREAD!!!* - Page 3 - Mustang Boards


General Tech Forum Use this form for tech related topics that relate to all/most Mustang platforms
Sponsored by:
Sponsored by:

Reply
 
 
 
Thread Tools Search this Thread
  #61  
Old 11-09-2006, 03:20 PM
phil_the_thrill's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Troy, Missouri
Posts: 246
Default

i'm not sure what kind of mods you have done to your car but i cant get anything better than 24mpg on the highway. ive never heard of anyone getting 30mpg in a stang. thats impressive. if the best i can get is 24mpg, then im sure it can drop below 25mpg
Reply With Quote
  #62  
Old 12-06-2006, 10:20 PM
Junior Member
 
Join Date: Dec 2006
Posts: 2
Default

You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end.

To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?
Reply With Quote
  #63  
Old 12-06-2006, 11:08 PM
GREG@SN95's Avatar
Banned
 
Join Date: May 2006
Location: JACKSON NJ
Posts: 4,135
Default

Quote:
Originally Posted by Wes8398 View Post
You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end.

To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?
you have a T-45
Reply With Quote
  #64  
Old 12-07-2006, 11:20 AM
phil_the_thrill's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Troy, Missouri
Posts: 246
Default

Quote:
Originally Posted by Wes8398 View Post
You'll probably GAIN gas milage with your city driving, and lose a bit on the highway ... reason being is that your smaller gears get you off the line with less effort, so stop and go driving will be easier. But higher RPM's on the highway with yeild a little more gas consumption. I would say it probably all evens out in the end.

To the thread starter - that calculator, is it only for 5spd trannies? Or is my 97 GT auto in there somewhere and I missed it?
heres a formula i derived. you can work it out by looking up your gear ratios for your transmission.

RPM=[(MPH)(Trans Gear Ratio)(Rear End Ratio)(336)]/(Tire Height in Inches)

you can use that for automatic transmissions if you just look up your gear ratios on google or something
Reply With Quote
  #65  
Old 12-07-2006, 06:13 PM
GREG@SN95's Avatar
Banned
 
Join Date: May 2006
Location: JACKSON NJ
Posts: 4,135
Default

Quote:
Originally Posted by phil_the_thrill View Post
heres a formula i derived. you can work it out by looking up your gear ratios for your transmission.

RPM=[(MPH)(Trans Gear Ratio)(Rear End Ratio)(336)]/(Tire Height in Inches)

you can use that for automatic transmissions if you just look up your gear ratios on google or something
how did you figure 336?

sweat formula though... that comes in handy... that dern website doesn't have a wide selection of trannys
Reply With Quote
  #66  
Old 12-07-2006, 07:59 PM
phil_the_thrill's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Troy, Missouri
Posts: 246
Default

its several different constants combine. such as pi. its just used to get the circumference of the wheel and i combined all the constants so all you have to do is put in tire height
Reply With Quote
  #67  
Old 03-30-2007, 09:22 PM
Junior Member
 
Join Date: Mar 2007
Posts: 9
Default Worried about gears

OK, really, I'm just a little scared of the gears I have bought. I have a 2000 GT, and I bought the 4.10 gears because of the material I have read here. It seemed to me while reading here that these were the gears to get. Now that I have them and am waiting to get them installed, the general concensus is that this will make the car top out too fast. I have noted myself that my car turns @2500 rpms in 4th gear at 60 mph, and 1500 rpms in 5th gear at 60 mph currently. I put borla exhaust on today and while the car was on the rack I rotated the drive shaft to make sure my gears were 3.27s and they are. My question, after all of that rambling, is: Is my car going to top out too fast? I don't race the car at the track, but I do occasionally eat a rice rocket if it is persistent enough to aggravate me. I drive about 30 miles each day to work and my speed is usually about 70 on the open highway on the way. I want to give my car that umph I used to feel when I first drove it, but I don't want to be driving a car that is too wound up. I would appreciate any input here folks. Thanks.
Reply With Quote
  #68  
Old 03-31-2007, 07:59 AM
phil_the_thrill's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Troy, Missouri
Posts: 246
Default

you'll only be at 2500 at 70 with 4.10s. thats not bad at all. unless you plan on going 170 on a regular basis then i dont think you'll top out to quick. i say have them installed immediately
Reply With Quote
  #69  
Old 04-01-2007, 04:14 PM
Junior Member
 
Join Date: Mar 2007
Posts: 9
Default

All I needed was to hear someone else say it. Thanks a lot. They're as good as in.
Reply With Quote
  #70  
Old 06-06-2007, 08:55 PM
Junior Member
 
Join Date: Feb 2007
Posts: 8
Default

Quote:
Originally Posted by blackonblack View Post
OK, really, I'm just a little scared of the gears I have bought. I have a 2000 GT, and I bought the 4.10 gears because of the material I have read here. It seemed to me while reading here that these were the gears to get. Now that I have them and am waiting to get them installed, the general concensus is that this will make the car top out too fast. I have noted myself that my car turns @2500 rpms in 4th gear at 60 mph, and 1500 rpms in 5th gear at 60 mph currently. I put borla exhaust on today and while the car was on the rack I rotated the drive shaft to make sure my gears were 3.27s and they are. My question, after all of that rambling, is: Is my car going to top out too fast? I don't race the car at the track, but I do occasionally eat a rice rocket if it is persistent enough to aggravate me. I drive about 30 miles each day to work and my speed is usually about 70 on the open highway on the way. I want to give my car that umph I used to feel when I first drove it, but I don't want to be driving a car that is too wound up. I would appreciate any input here folks. Thanks.
i actually gained speed in the end with the 4.10s because of multiplying action in the higher rpms where as i didnt have all the power i needed to get up to a good speed in OD but it does now
Reply With Quote
  #71  
Old 06-07-2007, 02:13 PM
Junior Member
 
Join Date: Mar 2007
Posts: 9
Default gears

There has been too much work and no time for play here lately. We're tooled up and ready to go now, though. The gears will be put in Monday. Hopefully pics are soon to follow. Thanks for the input, by the way.
Reply With Quote
  #72  
Old 06-29-2007, 10:11 AM
Junior Member
 
Join Date: May 2006
Location: San Diego, Cali
Posts: 25
Default gear shop in sd area?

Yo I was looking for a place to get my 3.73's in the san diego area. So far ive only found Pro Gears and they want $790 for parts and labor, but they gaurentee all their work. hmm anyone know anywhere else to go in the area that will be cheaper, but does good work?
Reply With Quote
  #73  
Old 08-02-2007, 10:03 PM
Steeda97's Avatar
banzai
 
Join Date: Apr 2007
Location: South Jersey
Posts: 4,545
Default

I was curious, for a daily driver, which gear is best for mpg? I'm contemplating whether i want 3.73, or 4.10. I drive about 40 miles a day.. I almost never go on the highway.
Reply With Quote
  #74  
Old 08-02-2007, 11:33 PM
More Cowbell
 
Join Date: Oct 2004
Location: North Carolina
Posts: 3,001
Default

For anyone who is wondering (why so much for installing gears). Here's my take: I'm an industrial mechanic, and i have rebuilt plenty of gearboxes for various applications, none for automotive but this should still apply. It aint a simple thing to just throw new gears into anything. Tolerances have to be real close. Too tight of a gear mesh means instant wear. The oil will not get between the teeth as needed. Too loose and the backlash will wear your gears out just as fast. So just take into consideration the ability of yourself or your mechanic to get the optimal space that is needed between the gears, which is normally in the thousands of an inch range. Good mechanics should be paid well for this IMHO..
Reply With Quote
  #75  
Old 09-08-2007, 06:25 PM
macj47's Avatar
Junior Member
 
Join Date: Sep 2007
Location: Smithville, TN
Posts: 29
Default

I've got 3.55 gears on mine, and with a car with a lot of power, it's seemed to work well for me..
Reply With Quote
  #76  
Old 09-26-2007, 10:47 AM
NeedACobra's Avatar
What is best in life?
 
Join Date: Jul 2007
Location: Gulf Breeze, Florida.
Posts: 1,117
Default

So if I have a 96 v6 stang, would I need a speed cal or could I just buy that little gear, and should I go with 4.10's or 3.73's? The car is automatic btw.
Reply With Quote
  #77  
Old 01-06-2008, 07:18 PM
BrandonJD25's Avatar
'02 GT...New Project
 
Join Date: Dec 2007
Posts: 88
Default

i can order just the gears themselves for $160 from here, a kit (fluids, gears, speed calculator) for $330. my question is...is that extra stuff worth it? do i need a tune or calibration after a new gear install? i deff want the gear upgrade, but i'm also on a budget...so nothing unnecessary would be good. haha
Reply With Quote
  #78  
Old 01-06-2008, 07:25 PM
B-rett's Avatar
BMC Member# 03209
 
Join Date: Jan 2005
Location: north ridgeville, ohio
Posts: 1,735
Default

its reccomended to get the install kit and new bearing if you have high miles. I got it done anyways with only 20,000 miles to be safe. You do not need a tune or recalibrated but if you dont your speedo will be off.
Reply With Quote
  #79  
Old 01-14-2008, 03:16 PM
Junior Member
 
Join Date: Dec 2007
Location: NY
Posts: 23
Default

I know gears will make me accelerate quicker, but i heard they take off on my top speed? is this true?
Reply With Quote
  #80  
Old 01-14-2008, 04:10 PM
Lazerred6's Avatar
Pocket Rocket
 
Join Date: Jan 2008
Location: Grand Rapids MI
Posts: 3,791
Default

Quote:
Originally Posted by sHaDy 3.8 View Post
I know gears will make me accelerate quicker, but i heard they take off on my top speed? is this true?
how often do you drive around a 110+
Reply With Quote
  #81  
Old 01-14-2008, 06:57 PM
Junior Member
 
Join Date: Dec 2007
Location: NY
Posts: 23
Default

Quote:
Originally Posted by Lazerred6 View Post
how often do you drive around a 110+
very often i like to take my car to 110+...will the gears make my top speed less or not?
Reply With Quote
  #82  
Old 02-04-2008, 06:57 PM
tristang's Avatar
Senior Member
 
Join Date: Jan 2008
Location: pa
Posts: 421
Default

i was told that for my 98 v6 auto i should get 4.10's is this right? and what kind of mpg will i lose?
Reply With Quote
  #83  
Old 02-05-2008, 04:59 AM
spike_africa's Avatar
Administrator
 
Join Date: Sep 2004
Location: Orlando,Florida
Posts: 11,974
Default

All this talk of top speed is retarded. Even with 4.10 gears none of you will ever get your car to its top speed as your cars dont make the power to go past the wind resistance. It will lower your top speed but its still very high more then the 110 someone posted.
Reply With Quote
  #84  
Old 02-07-2008, 08:08 PM
03_GT's Avatar
Smoke Tires....Not Drugs.
 
Join Date: Sep 2006
Location: Ameila Island, Flow-Duh
Posts: 1,064
Default

Ok, this is gonna **** someone off or aggravate them.. But im going built motor and supercharger(in a year or so), i was looking at 4.10's.....but im told 3.90's or 3.73's will be good for forced induction...Which gears would be the best and which gears will i be happy with? i only want to do this once!
Reply With Quote
  #85  
Old 02-07-2008, 08:31 PM
Ketchum & Killem
 
Join Date: Sep 2007
Posts: 12,065
Default

Quote:
Originally Posted by 03_GT View Post
Ok, this is gonna **** someone off or aggravate them.. But im going built motor and supercharger(in a year or so), i was looking at 4.10's.....but im told 3.90's or 3.73's will be good for forced induction...Which gears would be the best and which gears will i be happy with? i only want to do this once!

hell i think anything under 4:10's are for women, but honestly if yer WILL be supercharging 373 might be a better choice, or yer gonna be shifting into 2nd before you can bury the throttle.
Reply With Quote
  #86  
Old 02-08-2008, 07:49 AM
Steeda97's Avatar
banzai
 
Join Date: Apr 2007
Location: South Jersey
Posts: 4,545
Default

Quote:
Originally Posted by JackThe Ripper View Post
hell i think anything under 4:10's are for women, but honestly if yer WILL be supercharging 373 might be a better choice, or yer gonna be shifting into 2nd before you can bury the throttle.
+1. 3.73's for FI.
Reply With Quote
  #87  
Old 02-08-2008, 08:17 AM
03_GT's Avatar
Smoke Tires....Not Drugs.
 
Join Date: Sep 2006
Location: Ameila Island, Flow-Duh
Posts: 1,064
Default

then 3.73s it will be!
Reply With Quote
  #88  
Old 02-10-2008, 07:59 AM
Junior Member
 
Join Date: Dec 2007
Location: NY
Posts: 23
Default

I have a manuel 2001 v6 mustang. I bought 3.73 gears but still havent installed them yet. I asked my mechanic about it and he said its really not a good idea since its only a V6 and it will put a lot of stress on my car. He also said i will barely see improvement. Please let me know if this is a bad idea.

Thanks
Reply With Quote
  #89  
Old 08-11-2008, 06:20 PM
Leonide's Avatar
Avatar just for Jack
 
Join Date: Feb 2008
Location: Whitehall, Ohio
Posts: 1,035
Default

the calculator on the first post is broken. someone is cybersquatting on the page.
Reply With Quote
  #90  
Old 08-17-2008, 01:33 AM
DJ_Nate's Avatar
Member
 
Join Date: Sep 2007
Location: sfc
Posts: 77
Default

as i recall someone told me; for a 96 v6 auto, 4.10's with no supercharger, 3.73's with supercharger. what would happen if it was 4.10's and a supercharger?
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
The offical Mustangboard Photo game Must See Pictures 33 06-13-2017 03:11 PM
The Official WEC/UFC/MMA Thread - *Spoilers* Badfish The Lounge 105 11-23-2010 09:21 AM
The official "Before and After thread" dannyb785 Pictures 32 09-12-2005 10:21 AM
the official "desktop" thread!!! dannyb785 The Lounge 69 08-16-2005 05:09 AM
Official Chinese and American Zodiac Sign Thread Badfish The Lounge 13 07-10-2005 07:19 PM


Tags
2001, 327, 373, backlash, calculator, change, ford, frpp, gas, gear, gears, gt, mileage, mpg, mustang, rear, rpms, speedometer

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -7. The time now is 08:49 PM.