4.10 gears on the street ?

Mustang_289 · 01-30-2003, 04:57 PM

We're getting ready to upgrade the rear in our project car. We were going towards a weekend warrior and drag car, so that's why we were looking at 4.10s with our 5-speed. Now he's changed his mind a little and still wants to drive the fox on the street.

Looking for input on whether 4.10s are too agressive for street use, or should we back down to 3.73s?

lx5091 · 01-30-2003, 05:21 PM

is it going to be driven for extended highway trips? If it was street/and light highway trips go for it! it'll only cost a little bit more on the gas bill....big deal. have fun with it!

Mustang_289 · 01-30-2003, 05:23 PM

Not a lot of highway driving - my concern would be spinning the tires while trying to accelorate on a highway or passing with 4.10s.

lx mike · 01-30-2003, 05:51 PM

how much power you plan on making?? with 4.10's you might not even need to downshift unless you want to blow past someone. depends on your speed. spinning ires won't be a problem at highways speeds even when downshifting unless you have a blower or nitrous.

Mustang_289 · 01-30-2003, 06:13 PM

A blower is in our future.

Nixon1 · 01-30-2003, 07:22 PM

Depends on a few things...if you plan on doing all that then I'm sure the gas won't be a problem for you.. It'll take a holy sh*tload of power to spin the tires once you get moving pretty good, but I'm sure it can be done.. If you plan on making the car fast as hell though, I actually think 3.73 or even maybe 3.43 could be better in the long run, for the extra trap speed... 4.11 is great for cars making low to moderate power, but cars with real extreme power might not get the trap speed they need out of it..... Haven't done the speed and rpm math but sounds right in my head...

gtsr515 · 01-30-2003, 08:33 PM

If your going blower NO 4.10's............the next question is for the street, what tires are you gonna run????, unless you run damn near slicks you'll spin into the next zip code......

I suggest 3.73's

Jay

01-30-2003, 08:44 PM

If you plan on supercharging the car anytime soon...I'd definitely go for some gears that will take full advantage of the blower. In my opinion, 3.55s or 3.73s would be a better gear for a supercharged 302.

Chris_H · 01-30-2003, 11:18 PM

I sent you a long PM on this, but I have to admit, I love my 4.10's compared to my 3.55's. I know I am at 4,100 ft, and not running as good of times as it seems I should be running, but these things are a blast! Just make sure you have the tires to support traction. My tires suck, and then some, and as gtsr515 said, I spin into the next zip code getting on the freeway, even in 3rd gear they spin some. Just be careful with them, and get some good rubber. I say go for the 4.10's.

Chris

Stang_Crazy · 01-31-2003, 11:49 AM

When I was N/A with 4.10's, I didn't have any problem with spinning the tires at all. I had DR's on the back and they would hook up great on the street. Forget about first gear though...I would shift into second before I got through an intersection. Gas milage wasn't bad at all...it all depends on how heavy your foot is.

Nixon1 · 01-31-2003, 03:03 PM

It also depends on what your definitions of good and bad gas mileage are. My definition of bad is 14 mpg and below....that's what happens to you when you drive a V6 for well over a year, and learned to drive on a 4 cyl.

88workcar · 01-31-2003, 09:34 PM

I love my 4.30s. I drive every day. I go on 1-2 hour trips regularly. Its no problem. Monday I am going to order a taller tire, for the blower.

Mustang_289 · 02-01-2003, 07:15 AM

88workcar - are you going to keep the 4.30s with the blower?

88workcar · 02-01-2003, 08:54 PM

I figure that the blower will be good for 70hp. I am going to jet the NOS for 70 hp and work with tire sizes from there. If I can get by with a 28" 29" or 30" tire and keep the 4.30s I will. At that point I will install the blower. And not use the NOS. Unless prevolked.

eeh1025 · 02-03-2003, 01:04 PM

Hey there I would go with the 4.10 gear. I would go with new rubber and a little bit bigger size. you will not beleive the difference the 4.10 has over the stock. Go with the 4.10

94snake · 02-07-2003, 12:30 PM

i have a 94 cobra 5.0 i recently installed a 4.10 rear end in mine and i love it. i was worried about highway use also and its not a problem. cruising highway at about 55 or 60 i was a lil bit over
2,300rpm's i would definatly go with the 4.10's.

Nixon1 · 02-07-2003, 08:40 PM

I do about 2600 or so on the highway with 4.10's and, despite the gas guzzling and all, it's SO fun. I easily got it up to over 90 on the on-ramp just romping the gas pedal with a friend in the car to see what it'd do. I hit 5000+ rpms in 3rd gear before even merging...let's just say the look on my face was:

Cody2552 · 02-07-2003, 11:22 PM

i put 4.10's in my stang, when i took it out , the car woke up, but i really woke up because of the kick in the seats. you'll love 'em

Mustang_289 · 02-08-2003, 01:28 PM

Well guys - we got the car back today; we decided to back down to 3.73s. Man we need some good rubber in the back now - as it's very easy to bust it lose with these cheap tires we have on the car.

Now my next question relates to tires - should we run DRs on the street or is there a sticky radial tire that will allow us to get that seat of the pants acceration?

Stang_Crazy · 02-08-2003, 01:42 PM

For tires, it all depends on how much street driving you're going to do. Will you drive it in the rain? Rain can play havok with alot of DR's when you get to highway speeds. Normal city driving should not be too difficult (still be careful). When I got my 4.10's in, I had Nitto DR's on teh back and they hook up great on the street. I don't know why, but they hook like crazy on the street! I run my DR's at 25 psi for street driving. I never drive in the rain so I can't comment on their wet performance or grip.

For a normal street tire, any soft compound should work better than the cheapo rubber you have on there now. And the normal street tire will handle much better in the rain as well.

01-30-2003, 04:57 PM	#1
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	4.10 gears on the street ? We're getting ready to upgrade the rear in our project car. We were going towards a weekend warrior and drag car, so that's why we were looking at 4.10s with our 5-speed. Now he's changed his mind a little and still wants to drive the fox on the street. Looking for input on whether 4.10s are too agressive for street use, or should we back down to 3.73s?

01-30-2003, 05:21 PM	#2
lx5091 Registered Member Join Date: Nov 2001 Location: Fall River, MA Posts: 467	is it going to be driven for extended highway trips? If it was street/and light highway trips go for it! it'll only cost a little bit more on the gas bill....big deal. have fun with it! __________________ '02 Explorer XLT 4.0L --Nice Vehicle '97 Saturn SL1--Soon to be ditched for a Ford!

01-30-2003, 05:51 PM	#4
lx mike Undescribable Join Date: Sep 1998 Location: Ft Myers Fla Posts: 1,539	how much power you plan on making?? with 4.10's you might not even need to downshift unless you want to blow past someone. depends on your speed. spinning ires won't be a problem at highways speeds even when downshifting unless you have a blower or nitrous. __________________ Rice Haters Club Member #101

01-30-2003, 07:22 PM	#6
Nixon1 Registered Member Join Date: Jan 2003 Location: Palm Bay, FL Posts: 432	Depends on a few things...if you plan on doing all that then I'm sure the gas won't be a problem for you.. It'll take a holy sh*tload of power to spin the tires once you get moving pretty good, but I'm sure it can be done.. If you plan on making the car fast as hell though, I actually think 3.73 or even maybe 3.43 could be better in the long run, for the extra trap speed... 4.11 is great for cars making low to moderate power, but cars with real extreme power might not get the trap speed they need out of it..... Haven't done the speed and rpm math but sounds right in my head... __________________ '91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60'

01-30-2003, 08:33 PM	#7
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	4.10's If your going blower NO 4.10's............the next question is for the street, what tires are you gonna run????, unless you run damn near slicks you'll spin into the next zip code...... I suggest 3.73's Jay __________________ Remember...2nd place is 1st place for losers!

01-30-2003, 05:23 PM	#3
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	Not a lot of highway driving - my concern would be spinning the tires while trying to accelorate on a highway or passing with 4.10s.

01-30-2003, 06:13 PM	#5
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	A blower is in our future.

01-30-2003, 08:44 PM	#8
Simi Stang Guest Posts: n/a	blower gears If you plan on supercharging the car anytime soon...I'd definitely go for some gears that will take full advantage of the blower. In my opinion, 3.55s or 3.73s would be a better gear for a supercharged 302.

01-30-2003, 11:18 PM	#9
Chris_H Registered Member Join Date: Oct 1999 Location: New Mexico Posts: 488	I sent you a long PM on this, but I have to admit, I love my 4.10's compared to my 3.55's. I know I am at 4,100 ft, and not running as good of times as it seems I should be running, but these things are a blast! Just make sure you have the tires to support traction. My tires suck, and then some, and as gtsr515 said, I spin into the next zip code getting on the freeway, even in 3rd gear they spin some. Just be careful with them, and get some good rubber. I say go for the 4.10's. Chris __________________ 1987 LX, Best times: 13.47 @ 102.49, 1.80 60ft 6900' DA

01-31-2003, 11:49 AM	#10
Stang_Crazy It's never clean enough! Join Date: Jan 1999 Location: Shaler, PA Posts: 1,542	When I was N/A with 4.10's, I didn't have any problem with spinning the tires at all. I had DR's on the back and they would hook up great on the street. Forget about first gear though...I would shift into second before I got through an intersection. Gas milage wasn't bad at all...it all depends on how heavy your foot is. __________________ ~Dan 2001 SVT Lightning 89' GT : Taking up garage space and waiting for a buyer... Rice Hater's Club - Member #11

01-31-2003, 03:03 PM	#11
Nixon1 Registered Member Join Date: Jan 2003 Location: Palm Bay, FL Posts: 432	It also depends on what your definitions of good and bad gas mileage are. My definition of bad is 14 mpg and below....that's what happens to you when you drive a V6 for well over a year, and learned to drive on a 4 cyl. __________________ '91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60'

01-31-2003, 09:34 PM	#12
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	I love my 4.30s. I drive every day. I go on 1-2 hour trips regularly. Its no problem. Monday I am going to order a taller tire, for the blower. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

02-01-2003, 07:15 AM	#13
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	88workcar - are you going to keep the 4.30s with the blower?

02-01-2003, 08:54 PM	#14
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	I figure that the blower will be good for 70hp. I am going to jet the NOS for 70 hp and work with tire sizes from there. If I can get by with a 28" 29" or 30" tire and keep the 4.30s I will. At that point I will install the blower. And not use the NOS. Unless prevolked. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

02-03-2003, 01:04 PM	#15
eeh1025 Registered Member Join Date: Feb 2003 Location: NJ Posts: 81	Hey there I would go with the 4.10 gear. I would go with new rubber and a little bit bigger size. you will not beleive the difference the 4.10 has over the stock. Go with the 4.10

02-07-2003, 12:30 PM	#16
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	go with 4.10 i have a 94 cobra 5.0 i recently installed a 4.10 rear end in mine and i love it. i was worried about highway use also and its not a problem. cruising highway at about 55 or 60 i was a lil bit over 2,300rpm's i would definatly go with the 4.10's.

02-07-2003, 08:40 PM	#17
Nixon1 Registered Member Join Date: Jan 2003 Location: Palm Bay, FL Posts: 432	I do about 2600 or so on the highway with 4.10's and, despite the gas guzzling and all, it's SO fun. I easily got it up to over 90 on the on-ramp just romping the gas pedal with a friend in the car to see what it'd do. I hit 5000+ rpms in 3rd gear before even merging...let's just say the look on my face was: __________________ '91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60'

02-07-2003, 11:22 PM	#18
Cody2552 Registered Member Join Date: Nov 2002 Posts: 68	i put 4.10's in my stang, when i took it out , the car woke up, but i really woke up because of the kick in the seats. you'll love 'em

02-08-2003, 01:28 PM	#19
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	Well guys - we got the car back today; we decided to back down to 3.73s. Man we need some good rubber in the back now - as it's very easy to bust it lose with these cheap tires we have on the car. Now my next question relates to tires - should we run DRs on the street or is there a sticky radial tire that will allow us to get that seat of the pants acceration?

02-08-2003, 01:42 PM	#20
Stang_Crazy It's never clean enough! Join Date: Jan 1999 Location: Shaler, PA Posts: 1,542	For tires, it all depends on how much street driving you're going to do. Will you drive it in the rain? Rain can play havok with alot of DR's when you get to highway speeds. Normal city driving should not be too difficult (still be careful). When I got my 4.10's in, I had Nitto DR's on teh back and they hook up great on the street. I don't know why, but they hook like crazy on the street! I run my DR's at 25 psi for street driving. I never drive in the rain so I can't comment on their wet performance or grip. For a normal street tire, any soft compound should work better than the cheapo rubber you have on there now. And the normal street tire will handle much better in the rain as well. __________________ ~Dan 2001 SVT Lightning 89' GT : Taking up garage space and waiting for a buyer... Rice Hater's Club - Member #11

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