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-   -   How effective are gears? (http://mustangforums.com/forum/2005-2014-mustangs/670956-how-effective-are-gears.html)

Young_Gun 04-28-2012 01:48 PM

How effective are gears?
 
Well, I was thinking this summer I would do cams, my intake, and maybe 4.10 gears

I was wondering how big of an effect they'll have on my acceleration? Thanks

07BLACKGT 04-28-2012 01:49 PM

very.

Roush05 04-28-2012 01:55 PM

I have 4.10s and I will say one thing: If you get them, you need some wider tires. If you don't have them, you will have a pretty much useless first gear.

Young_Gun 04-28-2012 02:11 PM

Quote:

Originally Posted by Roush05 (Post 7924800)
I have 4.10s and I will say one thing: If you get them, you need some wider tires. If you don't have them, you will have a pretty much useless first gear.

I'm running some pretty wide tires on the rear as it is.

What will it do to my quarter mile time?

Roush05 04-28-2012 02:14 PM

I haven't gone to a track so I can't tell you but I have a video of my current exhaust that I'm gonna upload today and you can see/hear the gearing difference.

jz 04-28-2012 02:56 PM

Of all the mods I've done so far, gears has been the best bang for the buck.

Shift 04-28-2012 03:03 PM

Keep the idea that an F/I Stang should have 3.73 and N/A 4.10 BUT also that 3.73 is better for a DD and 4.10 for shorter driving/track cars more like because they are not good for highway driving.

ovrpar6 04-28-2012 04:02 PM

3.73
 
For a daily driver and a bit more fun go with 3.73. If u go with 4.10's you'll be sorry on the highway over 55!

wayne613 04-28-2012 04:35 PM

Fine with mine at that speed. If I had a more than 25min or so daily commute on the highway/freeway I might re-think it, but I love my 4.10's. Better than even the tune.. Just way more fun.

Young_Gun 04-28-2012 04:47 PM

What exactly happens on the highway?

Bmr4life 04-28-2012 04:51 PM

Gears are fun and cost more than their initial price if you drive on the highway. 70-75mph, you will loose 2-3mpg. I know we don't buy these cars for mpg, but that's still money and its ignorant to ignore it.

Shift 04-28-2012 04:52 PM

Quote:

Originally Posted by Young_Gun (Post 7924926)
What exactly happens on the highway?

Gears shift your rpm ranges. For example If you ride on the highway with say 3.55 gears you'll be at about 2000 rpm. With 3.73 it may be 2500rpm and with 4.10s it may be 3000rpm. Might be exaggerating the rpms some, but you get the point. Helps in acceleration throughout the gears but as you probably know riding with high rpm all the time is and can be bad. Why we dont ride around going 40 in first.

wayne613 04-28-2012 04:53 PM

Quote:

Originally Posted by Young_Gun (Post 7924926)
What exactly happens on the highway?

Your final gear ratio in O/D will cost you, mpg wise, and so long as it's done right, you won't get whine, but it will be louder since the RPMs are higher. Not exactly a silent interior to begin with.

Bmr4life 04-28-2012 04:54 PM

Quote:

Originally Posted by JJP SuperStang (Post 7924931)
Gears shift your rpm ranges. For example If you ride on the highway with say 3.55 gears you'll be at about 2000 rpm. With 3.73 it may be 2500rpm and with 4.10s it may be 3000rpm. Might be exaggerating the rpms some, but you get the point. Helps in acceleration throughout the gears but as you probably know riding with high rpm all the time is and can be bad. Why we dont ride around going 40 in first.

Highway pulls SUCK with 4.10s. Above 70mph and the gearing was jacked up. Floor it and the cars acceleration was slower versus the stock gears. I was in an auto though.

Shift 04-28-2012 04:56 PM

Quote:

Originally Posted by Bmr4life (Post 7924933)
Highway pulls SUCK with 4.10s. Above 70mph and the gearing was jacked up. Floor it and the cars acceleration was slower versus the stock gears. I was in an auto though.

Yeah simply put. Want to go on highway or have an F/I set-up don't do 4.10. If you want even more torque down low, run an N/A set-up and dont often go on the highway go 4.10. I just always remember this. For me I have an F/I setup AND go on the highway, plus its my DD so 3.73 was a no brainer for me.

Young_Gun 04-28-2012 06:08 PM

Then I drive on the highway WAY too much.

Shift 04-28-2012 06:11 PM

Quote:

Originally Posted by Young_Gun (Post 7924984)
Then I drive on the highway WAY too much.

If its your daily and you drive on the highway a lot, you'd be much happier with 3.73s.

Bmr4life 04-28-2012 06:13 PM

Quote:

Originally Posted by JJP SuperStang (Post 7924986)
If its your daily and you drive on the highway a lot, you'd be much happier with 3.73s.

Agreed...

Those "don't fear the gear" people convinced me into a bad decision that had me trading in my car just 2 months afterwards putting in the 4.10s.

My car sounded bad ass, but was all bark and no bite with the mods in my sig. If I could do it over again, I would NEVER have gotten cams which means I wouldn't have needed gears to make up for the horrible loss in low rpm TQ. Wasted $1700.

Roush05 04-28-2012 06:22 PM

Don't get me wrong; these gears are fun. The point brought up on the last page about highway pulls is a big factor though. If you are ever in a situation where someone wants to play with you and you are doing more than 45-50, you can't do much. 2nd gear ends for me at around 56-58 mph.


edit: I drive 60 miles a day on the highway, and my best tank was about 20 mpg. I average 18-19.

Bmr4life 04-28-2012 06:25 PM

Quote:

Originally Posted by Roush05 (Post 7925002)
Don't get me wrong; these gears are fun. The point brought up on the last page about highway pulls is a big factor though. If you are ever in a situation where someone wants to play with you and you are doing more than 45-50, you can't do much. 2nd gear ends for me at around 56-58 mph.

Exactly. Those gears for me were only good for the first 3 gears. After that, acceleration was slooooow. Wouldn't be a problem if I could go back to 3rd, but by 75-80, I was in 4th.


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