4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

new guy with some questions

Thread Tools
 
Search this Thread
 
Old 12-31-2009, 06:21 PM
  #1  
allan04gt
Thread Starter
 
allan04gt's Avatar
 
Join Date: Dec 2009
Location: arizona
Posts: 3
Default new guy with some questions

hello guys, i just bought a 2004 mustang gt automatic with the following mods, shorty headers(unknown brand), CAI, the rest of the exhaust seems to be modified as well. My question is whenever im in the highway and doing like 65mph, my motor is turning close to 3,000rpm's, is that normal for a 2v? Now I know that these cars came stock with 3.27 gear ratio, is it possible that i might steeper gears? Thanks guys, btw this site rocks!!!
allan04gt is offline  
Old 12-31-2009, 06:30 PM
  #2  
budders
4th Gear Member
 
budders's Avatar
 
Join Date: Jun 2009
Location: PA, Killadelphia
Posts: 1,373
Default

you prob got like 4.88 gears
budders is offline  
Old 12-31-2009, 06:31 PM
  #3  
0949er
4th Gear Member
 
0949er's Avatar
 
Join Date: Mar 2009
Location: NC
Posts: 1,909
Default

holy **** haha

Umm I dont even know if 4.30's turn 3k rpms @ 65 MPH. But yea, you def have a set of REALLY steep gears (unless you have monster truck tires on the car, haha)

where did the car come from? did the owner disclose any info to you about the car? or its history? he might of had it at the track for a while.
0949er is offline  
Old 12-31-2009, 06:39 PM
  #4  
WannaBeGearHead
Go Texas!!!
 
WannaBeGearHead's Avatar
 
Join Date: Jul 2009
Location: Lincoln, NE
Posts: 4,613
Default

NVM I had a brain fart, sry.
WannaBeGearHead is offline  
Old 12-31-2009, 06:58 PM
  #5  
allan04gt
Thread Starter
 
allan04gt's Avatar
 
Join Date: Dec 2009
Location: arizona
Posts: 3
Default

i got the car at a dealer lot, the guy that worked there said it has some performance mods but did not said anything about gears. How can i tell if i have 4.10s, is there a way to find out?
allan04gt is offline  
Old 12-31-2009, 07:29 PM
  #6  
MU71L4710N
5th Gear Member
 
MU71L4710N's Avatar
 
Join Date: Aug 2007
Location:
Posts: 3,189
Default

Originally Posted by 0949er
holy **** haha

Umm I dont even know if 4.30's turn 3k rpms @ 65 MPH. But yea, you def have a set of REALLY steep gears (unless you have monster truck tires on the car, haha)

where did the car come from? did the owner disclose any info to you about the car? or its history? he might of had it at the track for a while.
actually it would be really small tires wouldnt it? i thought larger tires decreased your RPM


and OP yes theres an easy way to tell which gears you have. you need a friend and a piece of chalk, tape or a marker. lift your car up off the ground and put a mark on the 6 o clock position of your driveshaft (the bottom of the side closest to the ground). then put a mark on the six o clock position of one of your tires (the part of the tire closest to the ground). then get your buddy to rotate both of your rear tires at the same time/same speed for ONE full rotation. if the driveshaft turns 4.1 revolution, you have 4.10 gears. if your driveshaft turns ~4.5 times, you have 4.56 gears. if your driveshaft turns ~3.75 times, you have 3.73 gears.

get it?
MU71L4710N is offline  
Old 12-31-2009, 07:59 PM
  #7  
budders
4th Gear Member
 
budders's Avatar
 
Join Date: Jun 2009
Location: PA, Killadelphia
Posts: 1,373
Default

budders is offline  
Old 12-31-2009, 08:01 PM
  #8  
teej281
4.6L Section Moderator
 
teej281's Avatar
 
Join Date: Nov 2007
Location: South Central PA
Posts: 10,286
Default

From the checking ive done here quick for you, you probably have 4.88 rear gears...which ive never actually seen on a car. lol those gears are rediculous man. I'd get them taken out asap and put 4.10's back in. Those would be the gears id go with if i had to put gear in an auto car.
teej281 is offline  
Old 12-31-2009, 08:34 PM
  #9  
mrtstang
6th Gear Member
 
mrtstang's Avatar
 
Join Date: Jan 2007
Location: MI
Posts: 5,884
Default

I would be extremely surprised if you had 4.88's. I mean who in the hell would put gears like that into a basically stock Mustang lol.
mrtstang is offline  
Old 12-31-2009, 08:36 PM
  #10  
allan04gt
Thread Starter
 
allan04gt's Avatar
 
Join Date: Dec 2009
Location: arizona
Posts: 3
Default

Thanks a lot guys, i'll be checking my driveshaft asap to see what kind of gears i got back there. Man but this car is fun as hell to drive...
allan04gt is offline  


Quick Reply: new guy with some questions



All times are GMT -5. The time now is 10:23 PM.