4.10’s Help

danbc21 · 07-19-2005, 10:10 PM

I just put 4.10's in today and My Speedometer is way off. What can I do to fix this? Also how much torque should I have picked? Because its kind of feels like I lost some. When I nail the gas down there is a little lag, like I am dragging ass. I still feels fast but not what I was expecting. Any help with this would be great..

FliSi99 · 07-19-2005, 10:38 PM

You need a speedcal to correct the speedo...You can go to www.dallasmustang.com or www.brothersperformance.com
Expect to pay about 80-100 bucks

Shambles · 07-20-2005, 12:23 AM

Speedcal or Tuner Chip/Xcal.

02wt5sp · 07-20-2005, 01:07 AM

Quote:

Originally Posted by danbc21

I just put 4.10's in today and My Speedometer is way off. What can I do to fix this? Also how much torque should I have picked? Because its kind of feels like I lost some. When I nail the gas down there is a little lag, like I am dragging ass. I still feels fast but not what I was expecting. Any help with this would be great..

Well... I'd get a tune.. SCT, Diablo which ever you want. They can fix your speedo, and grab you some extra hp. You don't actually gain any torque with gears, it just multiplies the torque put to the ground, you should have felt a big difference with 4:10's, if you car is dragging ass you might have else wrong, or whoever put your gears in screwed something up.

*madmatt* · 07-20-2005, 04:58 AM

Yea, there should be NO dragging of the ass. Your car should run like a raped ape, incorrect speedometer or not, trust me. When I got the 3.73s, it was huge, so I can only imagine what the 4.10s are like. I kinda wanna find out...

danbc21 · 07-20-2005, 02:02 PM

Problem Fixed Thanks guys

dsdaddy · 07-20-2005, 02:16 PM

Quote:

Originally Posted by danbc21

Problem Fixed Thanks guys

Don't leave us hangin'...what was the problem?

danbc21 · 07-20-2005, 02:21 PM

Quote:

Originally Posted by dsdaddy

Don't leave us hangin'...what was the problem?

I took it back and got a Speedcal for it. And about the dragging ass, I don’t know what that was But its moving now.

two-niner · 07-20-2005, 04:52 PM

Looked down and the emergency brake was on. Saved a lot of money by releasing it myself, and not getting a "hey stupid" look from the mechanic.

liv4him · 07-25-2005, 01:40 PM

I just made my appointment today to have gears put in (Aug. 19th) I also got 4;10s but Im scared as sh//t................I still dont know if I should of got 3;73s, Ive never driven in a car with either. Whats first gear like??

MineralGT · 07-25-2005, 01:45 PM

Quote:

Originally Posted by liv4him

I just made my appointment today to have gears put in (Aug. 19th) I also got 4;10s but Im scared as sh//t................I still dont know if I should of got 3;73s, Ive never driven in a car with either. Whats first gear like??

FUN!!...It's a lot shorter but so are all the other gears...trust me, you'll like your car a lot more.

02wt5sp · 07-25-2005, 01:57 PM

Quote:

Originally Posted by liv4him

I just made my appointment today to have gears put in (Aug. 19th) I also got 4;10s but Im scared as sh//t................I still dont know if I should of got 3;73s, Ive never driven in a car with either. Whats first gear like??

like he said, it's alot shorter, but you'll love it. It's the only mod you'll never get used to. Every time I drive my car I'm so happy I got the 4:10's, and the fact that my buddy has pretty much the same car, and mods, except he does't want to do gears(because he's scared!!!!) and I beat him every time we race, really makes me happy.

*Lances03SVT* · 07-25-2005, 02:18 PM

Quote:

Originally Posted by madmatt

Yea, there should be NO dragging of the ass. Your car should run like a raped ape, incorrect speedometer or not, trust me. When I got the 3.73s, it was huge, so I can only imagine what the 4.10s are like. I kinda wanna find out...

Yep I agree,thinking of doing the 4:10's.

liv4him · 07-25-2005, 02:31 PM

Yea you guys are right! The last stang I had I always went the safe route like not getting the louder exhaust set up and I always regreted it. I wanted magnaflow but I was'nt sure about the packs but I said screw it Im getting the Packs and man I love them.........so that's it Im getting the 4.10 and not looking back!!

csledd · 07-26-2005, 07:49 AM

I just got my 4.10 gears in yesterday.. and they are freakin awesome :thumbsup:

btw.. you don't gain any torque from gears.. this is the best paragraph I've seen explaining it..

"Gears mulitply your engine's torque to get the car up to speed easier. Without gears to mulitply the engines torque, you will never be able to get your car to take off from a stoplight. Gears are numbered as a ratio, for example 3.27:1. This means that the drive gear (pinion gear) must rotate 3.27 times for the driven gear (ring gear) to rotate once. Let's look at some math to better illustrate this. A stock Mustang GT weighs in at about 3500lbs, its engine has a horsepower rating of 225hp and a torque rating of say 300 lb./ft of torque. Without gears your engine only making 225hp and 300lb./ft of torque will have to try to move a 3500lb mass. That simply isn't gonna happen. Now lets see what gears can do for us. Your typical Mustang has a first gear ratio of about 3.3:1 (in the 96-up cars.) So by taking it's torque of 300*3.3, you now have 990lb/ft of torque to help your car take off. That's still not enough to make for trouble free take-off's. Now take that number and use rear-end geras of say 3.27:1 to mulitply that onto the wheels you now have 3237lb/ft of torque to accelerate you. While this is a healthy number, its still less than your car weighs. Let's see what happens when we install say 4.30:1 gears to the car with 3.27's 300*3.3*4.30=4257lb/ft of torque! That's over 1000 lb/ft of torque, 1020lb/ft to be exact that will help your car off the line. This means less bogging, and a car that is extremely fun to drive. By this example, you can see the advantage of a numerically higher gear ratio."

Shambles · 07-26-2005, 11:10 AM

I dont know if i want 3.90's or 4.10's in my cobra since I do Highway driving.

Icefreezen · 07-26-2005, 11:49 AM

Quote:

Originally Posted by MTShambles

I dont know if i want 3.90's or 4.10's in my cobra since I do Highway driving.

Same here I think i'm going to do 3.90's just for the fact theres little difference between the 3.73's and 4.10's in gas mpg. But I would like to hear some info from a expert on this matter. I really don't want to lose any mpg maybe 1.

Nofire · 07-26-2005, 12:41 PM

I just got my gears in last week (put them in myself), and let me tell you- it's freakin' awesome. I went with the 4.10's. at 2k rpm, I'm sitting dead on 60 miles per hour. So that should give you some idea about what rpms you will be turning on the highway ( 85 miles per hour is a hair under 3k rpm).

Icefreezen · 07-26-2005, 12:51 PM

Quote:

Originally Posted by Nofire

I just got my gears in last week (put them in myself), and let me tell you- it's freakin' awesome. I went with the 4.10's. at 2k rpm, I'm sitting dead on 60 miles per hour. So that should give you some idea about what rpms you will be turning on the highway ( 85 miles per hour is a hair under 3k rpm).

Thats not bad for the highway. How hard was it to put in by yourself?

*madmatt* · 07-27-2005, 05:54 AM

Quote:

Originally Posted by MTShambles

I dont know if i want 3.90's or 4.10's in my cobra since I do Highway driving.

4.10s at LEAST on a cobra. Dont be a baby. Youll regret it. I promise.

csledd · 07-27-2005, 06:31 AM

Quote:

Originally Posted by Icefreezen

Thats not bad for the highway. How hard was it to put in by yourself?

gears are easy to install.. if you know what you're doing. Because you have to use a dial indicator to check it, and if its not right you have to add shims until it be comes right. You also need a press to remove the bearing from the pinion gear.

*venom* · 07-27-2005, 11:11 AM

Quote:

Originally Posted by MTShambles

I dont know if i want 3.90's or 4.10's in my cobra since I do Highway driving.

If you fear the gear then 4.10s but 4.30s will be better remember you have a DOHC and we rev higher than GTs.

*madmatt* · 07-27-2005, 11:24 AM

Quote:

Originally Posted by venom

If you fear the gear then 4.10s but 4.30s will be better remember you have a DOHC and we rev higher than GTs.

:wav: He hit the nail on the head.

07-19-2005, 10:10 PM	#1 (permalink)
danbc21 Senior Member Join Date: Dec 2004 Location: Springfield, PA Posts: 159	4.10’s Help I just put 4.10's in today and My Speedometer is way off. What can I do to fix this? Also how much torque should I have picked? Because its kind of feels like I lost some. When I nail the gas down there is a little lag, like I am dragging ass. I still feels fast but not what I was expecting. Any help with this would be great.. __________________ 02 Torch Red GT Coupe 5-speed -Steeda Tri-Ax -SLP Loudmouth Catback -Motive 4.10 Gears -Mach 1 Chin Spoiler -Bullitt Pedals -K&N -Black Bumper Insert -Raised Scoop Black Designation Decals -Mach 1 Mustang Grill Delete -Black Bullitt wheels

07-20-2005, 12:23 AM	#3 (permalink)
Shambles The Baninator! Join Date: Mar 2005 Location: Springfield, PA Posts: 2,652	Speedcal or Tuner Chip/Xcal. __________________ Chris "Shambles" Chamblee

07-20-2005, 04:58 AM	#5 (permalink)
madmatt Traitor...lol Join Date: Sep 2004 Location: Lexington, SC Posts: 7,929	Yea, there should be NO dragging of the ass. Your car should run like a raped ape, incorrect speedometer or not, trust me. When I got the 3.73s, it was huge, so I can only imagine what the 4.10s are like. I kinda wanna find out... __________________ RPMPlanets

07-20-2005, 02:02 PM	#6 (permalink)
danbc21 Senior Member Join Date: Dec 2004 Location: Springfield, PA Posts: 159	Problem Fixed Thanks guys __________________ 02 Torch Red GT Coupe 5-speed -Steeda Tri-Ax -SLP Loudmouth Catback -Motive 4.10 Gears -Mach 1 Chin Spoiler -Bullitt Pedals -K&N -Black Bumper Insert -Raised Scoop Black Designation Decals -Mach 1 Mustang Grill Delete -Black Bullitt wheels

07-20-2005, 04:52 PM	#9 (permalink)
two-niner twin-engine props Join Date: Apr 2005 Location: las vegas,nv Posts: 38	I had the same problem!! Looked down and the emergency brake was on. Saved a lot of money by releasing it myself, and not getting a "hey stupid" look from the mechanic.

07-19-2005, 10:38 PM	#2 (permalink)
FliSi99 Junior Member Join Date: Jul 2005 Location: LG Posts: 2	You need a speedcal to correct the speedo...You can go to www.dallasmustang.com or www.brothersperformance.com Expect to pay about 80-100 bucks

07-25-2005, 01:40 PM	#10 (permalink)
liv4him 40thGT Join Date: Mar 2005 Location: York, Pa Posts: 177	I just made my appointment today to have gears put in (Aug. 19th) I also got 4;10s but Im scared as sh//t................I still dont know if I should of got 3;73s, Ive never driven in a car with either. Whats first gear like?? __________________ 40thGT,Mach1chin,shorty ant.,K&N, Magnapacks catback, bullet knob, Steeda U/D pulleys,H&R SS springs,4.10's,grill delete,SCT, DD 17x10.5 315 NittoDR's,17x9reps.SLP X pipe,poly isos. rear seat delete,Alum.drivshaft, MMcc plates,35% tint, dyno tuned

07-25-2005, 02:31 PM	#14 (permalink)
liv4him 40thGT Join Date: Mar 2005 Location: York, Pa Posts: 177	Yea you guys are right! The last stang I had I always went the safe route like not getting the louder exhaust set up and I always regreted it. I wanted magnaflow but I was'nt sure about the packs but I said screw it Im getting the Packs and man I love them.........so that's it Im getting the 4.10 and not looking back!! __________________ 40thGT,Mach1chin,shorty ant.,K&N, Magnapacks catback, bullet knob, Steeda U/D pulleys,H&R SS springs,4.10's,grill delete,SCT, DD 17x10.5 315 NittoDR's,17x9reps.SLP X pipe,poly isos. rear seat delete,Alum.drivshaft, MMcc plates,35% tint, dyno tuned

07-26-2005, 07:49 AM	#15 (permalink)
csledd DSG!!! Join Date: Feb 2005 Location: Paducah, KY Posts: 3,074	I just got my 4.10 gears in yesterday.. and they are freakin awesome :thumbsup: btw.. you don't gain any torque from gears.. this is the best paragraph I've seen explaining it.. "Gears mulitply your engine's torque to get the car up to speed easier. Without gears to mulitply the engines torque, you will never be able to get your car to take off from a stoplight. Gears are numbered as a ratio, for example 3.27:1. This means that the drive gear (pinion gear) must rotate 3.27 times for the driven gear (ring gear) to rotate once. Let's look at some math to better illustrate this. A stock Mustang GT weighs in at about 3500lbs, its engine has a horsepower rating of 225hp and a torque rating of say 300 lb./ft of torque. Without gears your engine only making 225hp and 300lb./ft of torque will have to try to move a 3500lb mass. That simply isn't gonna happen. Now lets see what gears can do for us. Your typical Mustang has a first gear ratio of about 3.3:1 (in the 96-up cars.) So by taking it's torque of 3003.3, you now have 990lb/ft of torque to help your car take off. That's still not enough to make for trouble free take-off's. Now take that number and use rear-end geras of say 3.27:1 to mulitply that onto the wheels you now have 3237lb/ft of torque to accelerate you. While this is a healthy number, its still less than your car weighs. Let's see what happens when we install say 4.30:1 gears to the car with 3.27's 3003.34.30=4257lb/ft of torque! That's over 1000 lb/ft of torque, 1020lb/ft to be exact that will help your car off the line. This means less bogging, and a car that is extremely fun to drive. By this example, you can see the advantage of a numerically higher gear ratio." __________________ CAP DSG Registry 2003 Mustang GT* - daily driven check out my cardomain for more info 296 rwhp / 310 rwtq Money spent @ AM: $4623.20 1984 Mustang Hatch - low budget project

07-26-2005, 11:10 AM	#16 (permalink)
Shambles The Baninator! Join Date: Mar 2005 Location: Springfield, PA Posts: 2,652	I dont know if i want 3.90's or 4.10's in my cobra since I do Highway driving. __________________ Chris "Shambles" Chamblee

07-26-2005, 12:41 PM	#18 (permalink)
Nofire Sooner #65 Join Date: Dec 2004 Location: University of Oklahoma Posts: 692	I just got my gears in last week (put them in myself), and let me tell you- it's freakin' awesome. I went with the 4.10's. at 2k rpm, I'm sitting dead on 60 miles per hour. So that should give you some idea about what rpms you will be turning on the highway ( 85 miles per hour is a hair under 3k rpm). __________________ 2004 Mach 1----Black--------Sold. 285HP, 304TQ I WANT MORE!!!

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