94lt1m6

iTrader: (9)

I have 3.90's right now, and I already bought a set of 4.56's. I was just going to sell them, cause I didn't think I would gain anything. What do you guys think? I rarely drive on the highway. Do you think these will help me with my 1/4 times?

FirstYrLS1Z

iTrader: (4)

You'll be increasing your torque to the carrier and axles by 17 %. Anytime you can increase torque and still get traction,acceleration rate increases.

wrd1972

iTrader: (12)

Only if the tires can hook. If not its going to be a big smoke show. May also need to shift to fifth on the big end. Depends on your current RPM in the traps.

94lt1m6

iTrader: (9)

I already shift into 5th at the VERY end. If i dont im at almost 7K in 4th

Mickey thompsons are in the future!

BMR Tech2

iTrader: (5)

Your car is going to hook differently and first to second shift is going to come a lot quicker but your times will drop.

94lt1m6

iTrader: (9)

Will my trap drop, or stay the same, or what?

94lt1m6

iTrader: (9)

I also have some slicks, do you think a mosor 12 bolt will hold up?

TJ

iTrader: (10)

you will prolly pic up a tenth to two tenths in the 1/4 depending on how fast you are.
by the 12.6 in your sig, id say with optimial traction, you should be on the higher side of the gain.
10 or 15 numbers id guess.

94lt1m6

iTrader: (9)

What do you mean by 10 or 15 numbers?

Blacklightning744

iTrader: (7)

o yea u'll notice a big difference, i went from 3.42 to 3.73 and it was like night and day.

impaled

here is an example, if you are redlining at 6500 RPM, and on 28" diameter tires, you could hit 119 in fourth gear.

if going up to 6800 RPM you could see 124 in fourth gear (still 28" diameter).

you want to maximize your RPM toward the end of the track while leaving some room for overhead.

pending on what your future goals are you might be better off with 4.30's or similar. the last thing you want at the track is to have to shift right before the end of the quarter.

play with this calculator, put in the gear ratios and tire size and redline, and it will tell you your speed in gear.

http://www.f-body.org/gears/

TJ

iTrader: (10)

sorry. bracket racing talk.
a number is a hundreth. 10 numbers is a tenth .10 or 15 numbers is a tenth and one half .15
at your 12.6 et, you very well could pick up more, it all depends on the setup.
i went to a 4.33 from a 3.70 and picked up .07, but im running way faster. hard to make up time when you are already going fast.

94lt1m6

iTrader: (9)

Oh ok, I see what you mean. I'll get them put in there when I get those MT's Have any of you put in gears yourself?