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Old 04-12-2009, 02:58 PM   #1
Tarball
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From 4.10 to 4.30. Worth it?

Is it worth the cost to move from a 4.10 to 4.30 gear, or should I leave it as is?
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K&N intake, PHP spacer, 90MM MAF, Accufab TB, Nazty Intake Manifold, BBK Catted X-pipe, Stinger cat-back, FRPP 4.10, CobraR pulleys, MARCH crank/WP pulleys, 10th Anni Cobra rims, SCT
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Old 04-12-2009, 04:58 PM   #2
GroverDill
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Re: From 4.10 to 4.30. Worth it?

I would say no.
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Old 04-12-2009, 05:05 PM   #3
G
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Re: From 4.10 to 4.30. Worth it?

I wouldn't pay anything or expend any energy for such a small change.
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Last edited by G; 04-12-2009 at 10:09 PM. Reason: I typed something stupid my first try
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Old 04-12-2009, 05:15 PM   #4
dmac6996
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Re: From 4.10 to 4.30. Worth it?

4.56 Ftw
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Old 04-12-2009, 06:12 PM   #5
Charles236
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Re: From 4.10 to 4.30. Worth it?

I allowed a friend to talk me into putting 4.10s in my Mach instead of the 4.30s that I wanted. Eactly one week later, I tore it back apart and installed a set of 4.30s. It was a noticeable improvement, and since I do my own gear installs I was only out the cost of the 4.10s, which I gave to my brother for his Cobra.
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Old 04-12-2009, 06:25 PM   #6
Tarball
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Re: From 4.10 to 4.30. Worth it?

Quote:
Originally Posted by dmac6996 View Post
4.56 Ftw

How would a 4.56 do on the high way? I do a lot of that.
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Black '03 5spd IUP
K&N intake, PHP spacer, 90MM MAF, Accufab TB, Nazty Intake Manifold, BBK Catted X-pipe, Stinger cat-back, FRPP 4.10, CobraR pulleys, MARCH crank/WP pulleys, 10th Anni Cobra rims, SCT
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Old 04-12-2009, 09:25 PM   #7
1BADMACH1
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Re: From 4.10 to 4.30. Worth it?

Quote:
How would a 4.56 do on the high way? I do a lot of that.
2800 rpm's @ 80mph for me
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"You can't argue with the stupid, they bring you down to their level and beat you with experience" -----------------------------
'04 Comp Orange
5 spd W/IUP
VIN-- 1FAFP42R04F199665
Build date 3/4/04
Purchased 4/24/04
Mods:
Mrt lowering springs
Mrt shifter
Mrt off-road H-pipe+MRT Max thunder catback
MM Lower control arms
Ford Racing Upper control arms
FM 4.56 gear 31 spline moser axles+ ETN TrueTrac axle tubes welded and powdercoated Moser girdle
SCT tune with xcalibrator
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Old 04-12-2009, 10:03 PM   #8
Apollo240
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Re: From 4.10 to 4.30. Worth it?

If the highway you speak of is acceleration from a roll...gears will be your worst enemy. A buddy has 48/30 rear wheel more then me and I can run with him and actually slightly creep away.
(test was preformed on an abandoned air strip so noone can give me crap lol)

However, in the 1/4 theres nothing better, in N/A application the more gear the better. If I was a drag only car, Id gear the h*ll outa mine lol. If you got the funds go for it, I wold consider 4.56's just to be sure you know what you want. I dont think you want to think the same thing to happen after you put 4.30's in.
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Old 04-12-2009, 10:44 PM   #9
Bwahl602
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Re: From 4.10 to 4.30. Worth it?

ive got 373's i was gonna put in my gt, but im considering some 4.10's for the mach

maybe american muscle will let me swap them
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Old 04-13-2009, 10:33 AM   #10
Tarball
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Re: From 4.10 to 4.30. Worth it?

Well I meant MPG on the High way, but i do a few rolling runs some times.
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K&N intake, PHP spacer, 90MM MAF, Accufab TB, Nazty Intake Manifold, BBK Catted X-pipe, Stinger cat-back, FRPP 4.10, CobraR pulleys, MARCH crank/WP pulleys, 10th Anni Cobra rims, SCT
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Old 04-13-2009, 10:42 AM   #11
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Re: From 4.10 to 4.30. Worth it?

I get 22 MPG on the highway,when I had my 3.73's I got 25 MPG.There was another thread about the MPG awhile back, a lot of people convinced me that if you're worried about MPG,don't own a sportscar.Just my 2 cents................................Kevin.
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Old 04-13-2009, 08:38 PM   #12
1BADMACH1
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Re: From 4.10 to 4.30. Worth it?

mpg????? Lol hell i'm not sure i'd say i get around 18 around town not sure about on the road though.
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"You can't argue with the stupid, they bring you down to their level and beat you with experience" -----------------------------
'04 Comp Orange
5 spd W/IUP
VIN-- 1FAFP42R04F199665
Build date 3/4/04
Purchased 4/24/04
Mods:
Mrt lowering springs
Mrt shifter
Mrt off-road H-pipe+MRT Max thunder catback
MM Lower control arms
Ford Racing Upper control arms
FM 4.56 gear 31 spline moser axles+ ETN TrueTrac axle tubes welded and powdercoated Moser girdle
SCT tune with xcalibrator
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Old 04-13-2009, 09:54 PM   #13
Apollo240
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Re: From 4.10 to 4.30. Worth it?

With all the crap in my sig, I been getting 18mpg..kinda nice considering all that nonsense. The TB gave me better mileage seems like especially after the tune.
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Old Mach:
2003 Torch Red, IUP, Flowmaster Cat-back, Steeda Tri Ax, Predator, JLT RAI, PHP spacer, BBK long tubes, BBK O/R H, Accufab 307/318

Current: Ls1 Corvette
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Old 04-13-2009, 09:55 PM   #14
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Re: From 4.10 to 4.30. Worth it?

Yea for highway roll-ons, youll hate the gears lol.
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Old Mach:
2003 Torch Red, IUP, Flowmaster Cat-back, Steeda Tri Ax, Predator, JLT RAI, PHP spacer, BBK long tubes, BBK O/R H, Accufab 307/318

Current: Ls1 Corvette
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Old 04-13-2009, 09:56 PM   #15
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Re: From 4.10 to 4.30. Worth it?

Quote:
Originally Posted by KEVINC66 View Post
I get 22 MPG on the highway,when I had my 3.73's I got 25 MPG.There was another thread about the MPG awhile back, a lot of people convinced me that if you're worried about MPG,don't own a sportscar.Just my 2 cents................................Kevin.
How did you like the 3.73's compared to stock??
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Old Mach:
2003 Torch Red, IUP, Flowmaster Cat-back, Steeda Tri Ax, Predator, JLT RAI, PHP spacer, BBK long tubes, BBK O/R H, Accufab 307/318

Current: Ls1 Corvette
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