|
Author
|
Topic: 3.73 vs 4.10's
|
Johnny408
¯
Member # 9147
|
posted
 
 
I need help deciding which gears will work best for me on my new project that i just picked up. The car is an auto 90 Gt. The car is all stock right now but will soon see some mods but want to do the rear end and gears first. I also drive the car from san jose to modesto during the week.
--------------------
2000 Mustang GT - sold
90 GT - sold
95 Mustang 5.0 - sold
98 GT - daily
Posts: 182 | From: Modesto | Registered: May 2009
| :
|
|
88FOX
¯
Member # 9969
|
posted
quote:
Originally posted by Johnny408:
I need help deciding which gears will work best for me on my new project that i just picked up. The car is an auto 90 Gt. The car is all stock right now but will soon see some mods but want to do the rear end and gears first. I also drive the car from san jose to modesto during the week.
373s for a daily.. 410s can be done in a daily but on the freeway your guna b in 5th gear around 60. i wana look into 390s!
Posts: 1938 | From: bay area | Registered: Apr 2010
| :
|
|
95gtdrop
¯
Member # 7478
|
posted
It's an auto not a manual. Therefore you'll be revin out 4th with 410s. My friend had an auto with 373s. It was perfect. Still held a decent rpm and speed on the freeway. 390s would be the max I'd gear a daily driven auto.
--------------------
1997 SVT cobra SOLD;(
2004 SVT Cobra Vert
Posts: 1221 | From: sacramento | Registered: Mar 2007
| :
|
|
88FOX
¯
Member # 9969
|
posted
quote:
Originally posted by 95gtdrop:
It's an auto not a manual. Therefore you'll be revin out 4th with 410s. My friend had an auto with 373s. It was perfect. Still held a decent rpm and speed on the freeway. 390s would be the max I'd gear a daily driven auto.
missd that your right^^
Posts: 1938 | From: bay area | Registered: Apr 2010
| :
|
|
Johnny408
¯
Member # 9147
|
posted
Ok thanks for the input. 3.73's is what i'm going to go with. If i'm not satisfied then guess i'll be stepping it up to the 3.90's.
--------------------
2000 Mustang GT - sold
90 GT - sold
95 Mustang 5.0 - sold
98 GT - daily
Posts: 182 | From: Modesto | Registered: May 2009
| :
|
|
Sydewayz_Stan
¯
Member # 10217
|
posted
Just go with the 4.10s youll be glad you did. I wouldve gone with them in my car but i would have a really short first gear (5spd). Autos are perfect for 4.10s
--------------------
-90 Vert-SOLD
-91 Notch-SOLD
-2000 Explorer 5.0-SOLD
-72 Maverick-SOLD
-2004 GT, vortech V2 si, 10 psi-
-2002 F150 supercrew-
Posts: 3432 | From: 707 vallejo/richmond 510 | Registered: Aug 2010
| :
|
|
Blk93Pony
¯
Member # 10798
|
posted
I went from stock to 4.10s in my auto fox gt and loved it but then started drivin about 20 miles to my job so it was killin my gas mileage and plus the revved up engine was getting annoying so switche to 3.73s and I shoulda got these to begin with
--------------------
Black 93 Mustang GT - currently down
Pearl Black 06 Chrysler 300C SRT-8 - stock for now
Posts: 768 | From: FF | Registered: Mar 2011
| :
|
|
CLEEN 50
CAFords OG
Member # 5867
|
posted
If im not mistaken gears do not affect gas mileage, and if youre auto go 4.10s and dont look back. Autos need the extra bang trust me. You'll be fine on the freeway ![[patriot]](graemlins/patriot.gif)
Auto N/A
4.10
Auto S/C
3.73
T-5 N/A
3.73
T-5 S/C
3.55
..is the norm I would say.
[ August 05, 2011, 12:09 AM: Message edited by: CLEEN 50 ]
--------------------
91 GT
(cafords reg date: 6/02)
Posts: 2534 | From: Peninsula | Registered: Jul 2005
| :
|
|
4NIK8TR
¯
Member # 11147
|
posted
4.10s and a reverse manuel valvebody is solid
Posts: 19 | Registered: Jul 2011
| :
|
|
triple b
¯
Member # 8763
|
posted
3.55 all bolt ons with 26" tire get you to the end of the track in 3rd about to redline
--------------------
1988 4cyl conv 306 HCI "sasha"
2004 tahoe
Sold- 87 GT, 72 chevelle, 63 biscane, 82 monte carlo, 73 nova, 88 silverado,
Posts: 1730 | From: sacramento ca | Registered: Nov 2008
| :
|
|
Slow05GT
¯
Member # 8408
|
posted
410s you will love it!
Posts: 2233 | From: Natomas, ca | Registered: May 2008
| :
|
|
95gtdrop
¯
Member # 7478
|
posted
quote:
Originally posted by CLEEN 50:
If im not mistaken gears do not affect gas mileage, and if youre auto go 4.10s and dont look back. Autos need the extra bang trust me. You'll be fine on the freeway
Auto N/A
4.10
Auto S/C
3.73
T-5 N/A
3.73
T-5 S/C
3.55
..is the norm I would say.
they dont affect gas mileage? Tell me that having 410s over stock gearing wont affect your mpg on the freeway going 65-70. so your sayingyou get the same mpg at 2300 rpm and 2800 rpm for ( using those rpms as an example.) id take that bet with you
--------------------
1997 SVT cobra SOLD;(
2004 SVT Cobra Vert
Posts: 1221 | From: sacramento | Registered: Mar 2007
| :
|
|
Rio1999GT
¯
Member # 9231
|
posted
quote:
Originally posted by 95gtdrop:
quote:
Originally posted by CLEEN 50:
If im not mistaken gears do not affect gas mileage, and if youre auto go 4.10s and dont look back. Autos need the extra bang trust me. You'll be fine on the freeway
Auto N/A
4.10
Auto S/C
3.73
T-5 N/A
3.73
T-5 S/C
3.55
..is the norm I would say.
they dont affect gas mileage? Tell me that having 410s over stock gearing wont affect your mpg on the freeway going 65-70. so your sayingyou get the same mpg at 2300 rpm and 2800 rpm for ( using those rpms as an example.) id take that bet with you
I just went from 4.10s in auto and swapped to 5 speed and now in 3.55s (IRS swap). Gas mileage is better now with the 3.55s but not much. Depends how you drive
[ August 05, 2011, 01:44 PM: Message edited by: Rio1999GT ]
Posts: 772 | From: Antioch | Registered: Jun 2009
| :
|
|
CLEEN 50
CAFords OG
Member # 5867
|
posted
quote:
Originally posted by 95gtdrop:
quote:
Originally posted by CLEEN 50:
If im not mistaken gears do not affect gas mileage, and if youre auto go 4.10s and dont look back. Autos need the extra bang trust me. You'll be fine on the freeway
Auto N/A
4.10
Auto S/C
3.73
T-5 N/A
3.73
T-5 S/C
3.55
..is the norm I would say.
they dont affect gas mileage? Tell me that having 410s over stock gearing wont affect your mpg on the freeway going 65-70. so your sayingyou get the same mpg at 2300 rpm and 2800 rpm for ( using those rpms as an example.) id take that bet with you
Im just paraphrasing what I heard and read over the last several years from well known tech heads in this forum ;-)
I believe Blind and JohnB would agree. It all depends how you drive. Folks who get gears are more inclined to drive harder and faster. If you treat it just like you did before you shouldn't notice a difference, at least this is what was explained to me. take it or leave it..makes no difference to me.
[ August 05, 2011, 04:18 PM: Message edited by: CLEEN 50 ]
--------------------
91 GT
(cafords reg date: 6/02)
Posts: 2534 | From: Peninsula | Registered: Jul 2005
| :
|
|
CobraCoupe
¯
Member # 7233
|
posted
More RPM = more fuel consumption = less gas mileage
Posts: 663 | From: Hayward | Registered: Nov 2006
| :
|
|
95gtdrop
¯
Member # 7478
|
posted
thank you!! ^
if your not driving on the freeway at all, you may keep the same mpgs in the city. otherwise say bye bye to your gas milage and hello to gas consumption
--------------------
1997 SVT cobra SOLD;(
2004 SVT Cobra Vert
Posts: 1221 | From: sacramento | Registered: Mar 2007
| :
|
|
JohnB
Tech Moderator
Member # 969
|
posted
Stock vs 4.10s, yes...you'd see little, if any MPG difference. 3.73's vs 4.10's, you won't. And I'll take that bet any day.
I've said it plenty of times...the only thing that effects fuel economy is the right foot. ![[Wink]](wink.gif)
--------------------
1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6525 | From: Orlando FL/Redding CA | Registered: Mar 2002
| :
|
|
Email this post to someone!
Printer friendly view of this Ford topic
