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what gears are best for 6speed for street/strip

Old 11-07-2003, 01:17 PM
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Default what gears are best for 6speed for street/strip

i have a stock ls1 6speed right now. i will eventually put a turbo on it, but what is the best gear ratio for mostly street racing. what rpm are you running at 75-80mph?
Old 11-07-2003, 01:59 PM
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Originally Posted by jdmille5
i have a stock ls1 6speed right now. i will eventually put a turbo on it, but what is the best gear ratio for mostly street racing. what rpm are you running at 75-80mph?
Keeping in mind the power you will be running down the road I would say 373 or 410 at the most. Its hard to really determine the best gear with the limited info
Old 11-07-2003, 04:31 PM
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A decision you're going to have to make is, do you want the best optimal gear now, and change later for the Turbo? Or go ahead and gear for the Turbo?

A 4:10 is going to be optimum for any N/A LS1 M6. Rpm's on the highway aren't even noticeable, especially if you're car is quiet. However if you're going to run FI, nothing higher than a 3:73.


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Old 11-07-2003, 04:39 PM
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Originally Posted by Damian
A decision you're going to have to make is, do you want the best optimal gear now, and change later for the Turbo? Or go ahead and gear for the Turbo?

A 4:10 is going to be optimum for any N/A LS1 M6. Rpm's on the highway aren't even noticeable, especially if you're car is quiet. However if you're going to run FI, nothing higher than a 3:73.


josh
Agreed.
Old 11-07-2003, 07:45 PM
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so as is which is stock just put 4:10 gears in it. how is the shifting first threw third. are the gears really short. i guess what im wondering is this the gear you would use if you were plaining on kill some cars from red light to red light.
Old 11-07-2003, 11:26 PM
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i have a set of 373 gears in the garage as well as 456 gears. for my stock ls1 which gears should i put in? is 456 tooooo much?
Old 11-07-2003, 11:29 PM
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For 0-60 racing you need two things: gearing and traction

I have 3.73 in my car now and can break the tires loose in a straight line any time in first and midway through second.

4.10 gears are going to make it impossible to get traction without tires.

With tires, you will soon blow apart your stock rear.

Even if you are really going to turbo your car later, save yourself some trouble and get a higher strength rear now with 4.10 gears and a set of sticky tires (maybe on some 17x11's). That'll help your 0-60 times and your peace of mind when you decide to really go big. And getting a fully set up turbo for this car is a HUGE expense compared to changing the gear ratio. My way you'll get to enjoy your car while waiting for the rest of your mod $$$.

With 3.73 gears I run 2000 rpm at 80 mph. The gears are not really short compared to 3.42. I didn't put the gears in this car. If I had, I would have went to 4.10 because the jump from 3.42 to 3.73 isn't big enough to justify the expense IMO. It really helps from a 3rd gear roll though! It's just at the begining of 3rd at about 65 mph.

Here is all the info you'll need to calculate your rpms with any gear/trans/tire combo you can imagine.

http://www.pontiacracing.net/Auto%20Math%20Programs.htm
Old 11-08-2003, 12:25 AM
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You also have to consider tire height with your gear ratio - both street and strip. My personal prefference for both situations is a 4.30 gear. Perfect for a H/C car with 27'' tall hoosiers, and still not bad on the highway for a 6 speed car.
Old 11-08-2003, 12:26 AM
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Originally Posted by z98
For 0-60 racing you need two things: gearing and traction

I have 3.73 in my car now and can break the tires loose in a straight line any time in first and midway through second.

4.10 gears are going to make it impossible to get traction without tires.

With tires, you will soon blow apart your stock rear.

Even if you are really going to turbo your car later, save yourself some trouble and get a higher strength rear now with 4.10 gears and a set of sticky tires (maybe on some 17x11's). That'll help your 0-60 times and your peace of mind when you decide to really go big. And getting a fully set up turbo for this car is a HUGE expense compared to changing the gear ratio. My way you'll get to enjoy your car while waiting for the rest of your mod $$$.

With 3.73 gears I run 2000 rpm at 80 mph. The gears are not really short compared to 3.42. I didn't put the gears in this car. If I had, I would have went to 4.10 because the jump from 3.42 to 3.73 isn't big enough to justify the expense IMO. It really helps from a 3rd gear roll though! It's just at the begining of 3rd at about 65 mph.

Here is all the info you'll need to calculate your rpms with any gear/trans/tire combo you can imagine.

http://www.pontiacracing.net/Auto%20Math%20Programs.htm

i dont have a stock rear end. my car was originally drag raced before i bought it. i have a 68 camaro with 12 bolt rear end. right now i have traction bars and leaf springs on there. im wondering if i should put latterbars on. i have them sitting in the garage. they came with the car. i dont know how that would ride.
Old 11-08-2003, 12:58 AM
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Originally Posted by jdmille5
i have a stock ls1 6speed right now. i will eventually put a turbo on it, but what is the best gear ratio for mostly street racing. what rpm are you running at 75-80mph?
If you were just going stay NA ,I would say go with the 4.10 gear. But you are planning a turbo in the future , so I would think you may want to stay with the stock 3.42 gear. If you really want to do a gear change ,go 3.73. You are going to need the room up in the higher rpms with that turbo and M6. Maybe I'm wrong ........I don't know. Just my $0.02
Old 11-08-2003, 01:08 AM
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Gears are cheap.

4.10 all the way.

Then you can use it with your turbo and see if you like it.

It'll probably come down to whether or not you have to shift into 5th in the 1/4.
Old 11-08-2003, 11:27 AM
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I really like my 4.10s... makes the car much more lively. Although traction does suck with my winter tires on... makes me miss my summer Nitto DRs.

I agree with everyone else though... if you have big plans for forced induction later on, you may be better served to save money for a 12 bolt. I plan on doing just bolt-ons for at least the next year and a half or so, so the 4.10 gears are fine for my purposes.
Old 11-08-2003, 12:12 PM
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i have a 68 camaro with 12 bolt rear end
if you have big plans for forced induction later on, you may be better served to save money for a 12 bolt
READ THE THREAD BEFORE REPLYING PLZ K THX

Anyway...

If you have 2 sets of gears in the garage, go ahead and try out the 4.56. Hell, that's like a 2.28 rear end ratio in 6th, which is still higher than many modded cars (definately higher than a stock 1st gen camaro!), and liveable on the highway with the kind of rear tires you'll need to hook with that much torque to the pavement.

I also recomend a Pro 5.0 shifter, because you will be shifting a LOT

What gear ratio is the car now?
Old 11-08-2003, 02:24 PM
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The best gear ratio for a 6 speed is 410's . I have them in my car and they are great.
Old 11-08-2003, 07:43 PM
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what do yall think i will run in the 1/4 with a stock engine with slicks and 4.10 gears, with a 6speed. my car weighs 3300lbs with me in it.
Old 11-08-2003, 08:49 PM
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12's

Please lengthen your message to at least 5 characters.
Old 11-08-2003, 10:45 PM
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Slicks, 4.10's and stock 10 bolt you may never make it to the end of the quarter !!!! let alone the burnout box.
Old 11-09-2003, 12:48 AM
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i have a 68 camaro with 12 bolt rear end
PAY ATTENTION!

Is it common to have to say the same thing to every single person around here?

It'd be quicker to send individual PM's instead of posting to people like you!



NOTICE I JUST MADE ALMOST THIS EXACT POST TOWARDS ANOTHER PERSON WHO DIDN'T EVEN TAKE THE TIME TO READ THE THREAD

idiots
Old 11-09-2003, 12:08 PM
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so with a 12 bolt rear end and 4.10 gears and slick in my 6speed you think ill run 12's. in my 3300lbs car with driver. high are low 12's. in the 1/8th mile, people say for every 100lbs you loose a tenth on a second. this is what most people ive taked to go by. is the 1/4 mile any different. will it still be a tenth or will it be a bigger differnce. most camaros weigh what 3700lbs with driver. and run 13.1 on street tires with stock rear ends and gears. just take 5 tenths off and im runnning 12.6 quarter. add slick and that putts me at what, 12.3? change stock gears to 4.10 and that puts me at what, 12.0? does this sound way off. is this just wishful thinking or what.
Old 11-10-2003, 07:24 AM
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Originally Posted by jdmille5
so with a 12 bolt rear end and 4.10 gears and slick in my 6speed you think ill run 12's. in my 3300lbs car with driver. high are low 12's. in the 1/8th mile, people say for every 100lbs you loose a tenth on a second. this is what most people ive taked to go by. is the 1/4 mile any different. will it still be a tenth or will it be a bigger differnce. most camaros weigh what 3700lbs with driver. and run 13.1 on street tires with stock rear ends and gears. just take 5 tenths off and im runnning 12.6 quarter. add slick and that putts me at what, 12.3? change stock gears to 4.10 and that puts me at what, 12.0? does this sound way off. is this just wishful thinking or what.
If you have a 12 bolt, tires, and a good clutch with a 3300 lb race weight you should run 11's. My car with a 3500 lb race weight and a used up stock clutch went 12.12 @ 115.86 mph. I could have put my car in the 11's bolt on, but had a new clutch, and H/C in the garage. 4.10's are perfect for a bolt on car. I agree with Classic, 4.30's w/27's is the way to go when you get H/C. Good luck.

Bruce

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