Gears!
Thread Starter
Joined: Jul 2006
Posts: 48
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Gears!
I'm thinking about making the jump to 3.73s or maybe even 4.10s. I have the stock 3.55 now with my 5 speed. I was wondering what kind of performance gains I could expect from different gears. Anybody done 1/4 mile testing comparing 3.55s to 4.10s? Would I notice a difference between 3.55 and 3.73? What about fuel mileage?
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Joined: Jan 2006
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RE: Gears!
I recommend doing a search. There are numerous threads about this (one is under 4.6 V8 drive train performance right now).
For your 5spd manual, you will want to go from 3.55 to 4.10.
A 3.73 ain't quite enough of a bump for the price you pay to have them installed.
Mike
For your 5spd manual, you will want to go from 3.55 to 4.10.
A 3.73 ain't quite enough of a bump for the price you pay to have them installed.
Mike
6th Gear Member
Joined: Dec 2004
Posts: 15,865
From: Ludlow, Mass
RE: Gears!
ORIGINAL: 06stangGT
4.10's on a highway will KILL you...so i hear...
4.10's on a highway will KILL you...so i hear...
In my personal opinon, 4.10s on auto, 4.30s on 5 speed, also, these are not pushrod motors, they are modular motors, which means they like to rev to make power, another reason to go with them
4th Gear Member
Joined: Jun 2006
Posts: 1,284
From: Maryland
RE: Gears!
06stangGT---No probs on highway for me. I drive 75% highway, 25% city. At 80mph I am at 2900 rpm and my mileage went down from 24mpg to 23 with 4.10's. Its no big deal at all.
therobman7----Stock manual is 3.55
therobman7----Stock manual is 3.55
I ♥ Acer
Joined: Jan 2006
Posts: 619
From:
RE: Gears!
ORIGINAL: lynwood78
How's 4:10's for the auto? I'm really thinking about getting it.
How's 4:10's for the auto? I'm really thinking about getting it.
4.10's are a bit too much for an automatic, but are perfect for the manual which has an OD of 0.68.
With 3.73's in an auto and 4.10s in a manual, they are basically geared the same. Technically the automatic will have a slightly lower gear ratio, but it ain't that much:
Manual final drive ratio = 4.10 X 0.68 = 2.788
Automatic final drive ratio = 3.73 X 0.75 = 2.7975
As you can see, the automatic with 3.73's has a slightly lower gear (higher number) than the manual with 4.10s.
Mike
6th Gear Member
Joined: Dec 2004
Posts: 15,865
From: Ludlow, Mass
RE: Gears!
ORIGINAL: MikeVistaBlue06
Go 3.73's for an auto since it has an OD of 0.75. You will tach approximately 2500 @ 75 and 2000 at 60.
4.10's are a bit too much for an automatic, but are perfect for the manual which has an OD of 0.68.
With 3.73's in an auto and 4.10s in a manual, they are basically geared the same. Technically the automatic will have a slightly lower gear ratio, but it ain't that much:
Manual final drive ratio = 4.10 X 0.68 = 2.788
Automatic final drive ratio = 3.73 X 0.75 = 2.7975
As you can see, the automatic with 3.73's has a slightly lower gear (higher number) than the manual with 4.10s.
Mike
ORIGINAL: lynwood78
How's 4:10's for the auto? I'm really thinking about getting it.
How's 4:10's for the auto? I'm really thinking about getting it.
4.10's are a bit too much for an automatic, but are perfect for the manual which has an OD of 0.68.
With 3.73's in an auto and 4.10s in a manual, they are basically geared the same. Technically the automatic will have a slightly lower gear ratio, but it ain't that much:
Manual final drive ratio = 4.10 X 0.68 = 2.788
Automatic final drive ratio = 3.73 X 0.75 = 2.7975
As you can see, the automatic with 3.73's has a slightly lower gear (higher number) than the manual with 4.10s.
Mike
ORIGINAL: therobman7
i always thought stock was 3.27, is it really 3.55 stock?
i always thought stock was 3.27, is it really 3.55 stock?
07+ 5 speed 3.31s
all s197 auots are 3.31
new edges were 3.27