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which gears are best for highway racing/speed?

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Old 09-08-2003, 06:27 PM   #1
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Default which gears are best for highway racing/speed?

i'm not really too concerned w/ 1/4 mile time.. i enjoy good top end more.. if i go w/ 4.10's will it make 4th gear weaker.. and what will each gear top out at.. i usually wont go over 120

also for daily driving.. i've heard 4.10's will sit at 2k rpm in 6th gear going 80 which isn't bad i think
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Old 09-08-2003, 06:36 PM   #2
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Default Re: which gears are best for highway racing/speed?

Id say 4.10's are good but also look at 3.73's they work well with 6 speeds too.If your going to get gears and you have a 6 speed I say go with 4.10's they will wake your car up a lot.What mods do you plan on doing?I say go with 4.10's if your planning on getting gears.
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Old 09-08-2003, 06:39 PM   #3
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Default Re: which gears are best for highway racing/speed?

lol.. yeah i plan on gears.. heh.. other then that nothing real serious just headers, ls6 intake, lil bit of tuning and i think that'll be fast enough for me
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Old 09-08-2003, 08:21 PM   #4
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Default Re: which gears are best for highway racing/speed?

If you are not concerned with the 1/4 mile stay away from 4.10's. 4.10's are for low end torque, and great for the 1/4 mile. If you're thinkin' about racing on the highway, say 100+mph, then just leave it stock. I've quickly run 150+mph on my stock rearend, just my opinion
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Old 09-08-2003, 11:26 PM   #5
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Default Re: which gears are best for highway racing/speed?

3.73s are the perfect street/strip gears, IMO.
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Old 09-09-2003, 01:33 AM   #6
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Default Re: which gears are best for highway racing/speed?

What gears are best depends on from what speed to what speed you'll be racing from and to.

The gear ratios in your T56 tranny are as follows...

1st - 2.66
2nd - 1.78
3rd - 1.30
4th - 1.00
5th - .74
6th - .50

I'll assume a rev limiter of 6250 and a tire height of 25.66. From this we see that our top speeds by gear for a 4.10 ring and pinion are...

1st-43
2nd-65
3rd-89
4th-116
5th-157
6th-232

BTW, at 80 MPH in 6th gear, you'll be turning 2147 MPH.

If you want me to figure all of this for 3.73 gears, lemme know.
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Old 09-09-2003, 01:38 AM   #7
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Default Re: which gears are best for highway racing/speed?

I would like to know the ratios on 3.73 actually.
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Old 09-09-2003, 01:06 PM   #8
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Default Re: which gears are best for highway racing/speed?

Quote:
3.73s are the perfect street/strip gears, IMO.
What he said!
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Old 09-09-2003, 01:34 PM   #9
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Default Re: which gears are best for highway racing/speed?

I love the 4.10's

4.10's w/ Drag Radials
3.73's w/ Street Tires (4.10's shred them up)
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Old 09-09-2003, 03:56 PM   #10
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Default Re: which gears are best for highway racing/speed?

Quote:
I would like to know the ratios on 3.73 actually.
Ok, take all of those MPHs by gear I gave for 4.10s and multiply them by 1.0991957104557640750670241286863

Of course, multiplying by 1.1 will get you really close.
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