4.10s and freeway
08-01-2007, 04:06 PM
#11
5th Gear Member
Join Date: May 2006
Location: Livonia MI
Posts: 2,632
RE: 4.10s and freeway
ORIGINAL: only90s
If you look at my sig you, see I run 4.10s and that is what I want at this point in my life...I wont be doing any 140 runs anymore...
ORIGINAL: 88natchback
So does that mean you would never think of getting 4.10s or you would never think of getting anything but...?
ORIGINAL: only90s
I hear ya....my old Notch I ran 3.55s and could still bury the speedo(140)...now that I am a mature mid 30 year old I would never think of such a thing!!!!!!!!!!!!!!!!!!!!!
ORIGINAL: 86_GT_Mustang
3000 rpm at 70 to slow for me i cant wait to get rid of my 4.10's
ORIGINAL: only90s
If you do a lot of highway driving and or it is a daily driver I would stick with 3.73s...I roll with 4.10s but only drive my 5.0weekends etc....turns at least 3k around 70mph....
ORIGINAL: 88natchback
hello there, ive heard that 4.10s should'nt do a lot of freeway. Just curious why?
hello there, ive heard that 4.10s should'nt do a lot of freeway. Just curious why?
3000 rpm at 70 to slow for me i cant wait to get rid of my 4.10's
08-01-2007, 04:13 PM
#12
6th Gear Member
Join Date: May 2006
Location: earleville md
Posts: 10,357
RE: 4.10s and freeway
i dont have 4.10s, i have 3.08s, but i have no 5th gear... so riding in 4th just happens to be just about identical to 5th w. 4.10s... all i have to say is it sucks on the high way... i think its 4000 is 85? i dunno, but its way up there... i dont like it at all... cant wait for the trans rebuild kit to come in the mail
08-01-2007, 09:45 PM
#14
6th Gear Member
Join Date: May 2006
Location: earleville md
Posts: 10,357
RE: 4.10s and freeway
whats your goal? i assume dragracing seeing the gears your looking at... if ur auto go 3.90 or 4.10(not a huge differance), if manual, go 3.73... youll trap around 5500 in 4th
08-02-2007, 04:10 AM
#16
1st Gear Member
Thread Starter
Join Date: Jun 2007
Location:
Posts: 95
RE: 4.10s and freeway
So really the popular consensus is that 3.73s' are the happy medium...Thats what i got but they're not installed yet. I dont really drive the car much cept for a few times to and fro work. Its about 13, 15 freeway miles away. I have an 88 gt with a stock rear end with 111k mi on it. I did a break tourqe, smoked up the street somthin good and was surprised to see only one tire mark :-/ i thought these cars came with posi?
08-02-2007, 08:57 AM
#17
3rd Gear Member
Join Date: Aug 2006
Location: MO
Posts: 805
RE: 4.10s and freeway
I have 4.10's with my automatic, and its right at 2500 rpms at 70 mph, doesnt bother me much, i still get about 21mpg and yes my speedometer is corrected, and i used to get at most..19mpg when i had 2.73's
08-02-2007, 10:39 AM
#18
5th Gear Member
Join Date: Jul 2004
Location: Westminster, MD
Posts: 4,343
RE: 4.10s and freeway
I run 4.10's on the freeway and I get 20mpg on highway driving and anywhere from 10-18 city depending on how I'm driving. Cruising rpm at 70mph with 5 speed is around 2600rpm with a 26in tall tire.
08-02-2007, 12:15 PM
#20
5th Gear Member
Join Date: May 2007
Location: Pittsburgh
Posts: 2,459
RE: 4.10s and freeway
I have 3.42's in my car and I LOVE THEM. although i do intend on going to 3.73 when my tranny gears change. Just this morning on mycommute to school my stang hit 135 mph at only about 3800 rpms(relatively quickly too, even while hauling a passenger and over 100lbs in books, cooler, etc.).Also, my 3.42s let me run 14.402 at the drag strip on street tires, thats with over .5 second reaction time, the car basically did 13.9 for those can do math. (Just UD pulleys and timing bump).