RyanK

IT also depends on the driver well ill try 4:10's cause its going to be my weeekend warrior car and once i sc it i could always buy gears,

boduke0220

if you get a kennebell dont get 4.10's but if you get like vortech or paxton ( turbo looking) 4.10's should be great. thats my opinion though

RyanK

Im more than likely going vortech

Eagle2000GT

Hoss, no wonder you don't care about rpm and gas mileage. You do so little driving it doesn't matter. I fill my tank two to three times per week, 52 weeks per year. Still, I consider the loss of 2 mpg that I got when I had gears installed worth it. I chose 3.73s and at 80 mph on the interstate (2800 rpm) I'm still trying to shift upward from 5th.

OP, the opinions on gears varies from application to application. In general, drivers of naturally aspirated cars prefer 4.10s. They work well on both the track and the street for that horsepower range. Although I have read about some discontent from those who have 4.10s. Mostly it was because they have a very short 1st gear. Some proponents of 4.10s advocate starting in second instead of first to overcome this drawback on the street. 4.10s do not hurt your gas mileage in the city but you will see a definite drop in gas mileage on the interstate.

The general consensus for supercharged cars seem to be 3.73s with the track crowd advocating 4.10s with 28" slicks. Gears are a torque multiplier and when you have plenty of low end torque already traction on the street starts becoming a problem. The more horsepower/torque you have the greater the problem. I have read posts from Kenne Bell drivers who have swapped out their 4.10s for 3.73s and 3.55s. I particularly remember one post where the KB driver said that sidewise at 50 mph passing a car is no fun. But this is not just a twin-screw problem. I have also read a post from a guy with a centri pushing 470+ rwhp who had 4.10s. The car basically had no traction at all on the street and was sideways in nearly every corner.

Which gear is best depends entire upon your personal preferences, the amount of horsepower your running, and how you use your car.

H0SS302

I drive about 30 miles a day. Not everybody commutes to work dude..

Eagle2000GT

My normal commute is around 30 miles round trip but my teaching assignments take me all over the state so I put a lot of miles on the car. I could park it and drive something else but I enjoy driving my Mustang too much to park it. I've read posts from people who only put around 2,000-3,000 miles per year on their cars. If I ever wear mine out I'll wait for one of those to come up for sale and start all over.

H0SS302

I just dont think 3mpg is that big of a deal. To me its like the people that dont tune their cars to 93 octane because 93 is 10 cents more.

If you cant afford 5-10more bucks at fill up you have more problems than 93 octane or 3mpg loss, you proble need to get different vehicle. A V8 is not a gas savor, its a torque producing, as guzzling vehicle. If you are concerned about gas mileage, buy a Civic.

Eagle2000GT

Why do people have to drive ugly cars with absolutely no sex appeal just because they want half way reasonable gas mileage? That's no fun at all. And, I've heard that Civic drivers can't even get dates.

But you are correct in that 2-3 mph doesn't really make that much difference (unless you are living at the absolute edge of your income).

Someone who drives 500 miles per week, like me, will drive around 26,000 miles per year. At 23 mpg they would use 1,130 gallons per year. At $2.20 per gallon that's $2,486 per year ($48 per week). Not bad. The extra $.20 for premium costs an extra $226 per year ($4.35 per week). Still not to bad. 4.10 gears, or in my case a supercharger and 3.73s, drop that gas mileage down to around 20 mpg. At 20 mpg they would use 1,300 gallons per year. 1,300 gallons at $2.40 is $3,120 per year ($60 per week). When gas was at $4.40 it was $5,720 per year ($110 per week).

I thought the jump from $48-60 a week (gas at $2.40) was acceptable. No big deal. When my weekly gas bill hit $110 I started to question my rationale and wondered if the stock GT might be more fun to drive. But then I realized that the stock GT would still cost $4,972 per year ($95 per week) and for an extra $15 per week I'd rather drive my car.

Please believe me when I say a Civic was never an option.

BlackLX_92

i had 4.10's in my 92 lx and my 96 cobra now i have a pretty much stock 04 GT and as soon as i can im getting 4.10's THAY ARE AMAZING i love them! if you get 4.10's u wont be dissapointed

BlackLX_92

my lx i filled up maybe once a week but it was basically stock but my cobra got 13 mpg city and 18 mpg hwy but both of those are driving hard! and the cobra was cammed up!