Gear noob questions

[TMan21]

Alright, I KNOW FOR A FACT that these questions have been asked before, but the more I read the more confused I become...

Anyway, I definitely need new gears for my 3.8 auto, but I'm torn betwen a 4.10 setup or a 3.73 setup. It's a daily driver, so IDK... a lot of the quarter mile racers on these forums have the 4.10s, and that's kinda the setup I was lookin at but I don't have the desire to go to the track. Just plain and simple: should I get 3.73s. It seems more logical to me, but I don't want to regret not getting the bigger gearls later down the road.

Thanx guys

[spike_africa]

the v6 really needs 4.10's unless it has a blower or something. And if its an auto it needs them regardless.

[Teal_Beast]

like Dustin said 4.10s for an auto. You'll love it

[spike_africa]

if you had a manual and plan to get a power adder 3.73's might be better but auto i would do 4.10 regardless with the v6 she needs the help to get moving.

[TMan21]

Alright, sweet!
Thanks a lot for the quick reply, ill definitely look into a 4.10 setup then

oh yea, Teal Beast great job on the twins! read your thread earlier today :clap:
those results are freakin' CRAZY

Thanks again guys

[spike_africa]

No problem bro, thats what where here to do

[The1Neo]

I was talking to my brother about 4:10's and 3:73's and if I should get them (I have a 99 V6) and he just started laughing. He said that even his Trans-Am doesn't have 4:10's. He also said that if I got 4:10's it would be pointless cause then I would have no top speed. Is this true?

[cuban3jumper]

Originally Posted by The1Neo

I was talking to my brother about 4:10's and 3:73's and if I should get them (I have a 99 V6) and he just started laughing. He said that even his Trans-Am doesn't have 4:10's. He also said that if I got 4:10's it would be pointless cause then I would have no top speed. Is this true?

Tell your brother to stick to his trans-am.

I ahve the same car as you (well not really lol) but I have 4.10's and I love them to death. Just rememebr you'll need a tune to correct for the new gear ration and while your at it take off the speed govenor. Top speed will be the same as before actually more. And besides you don't need to be going 120+ on the street anyways.

[The1Neo]

how much do you think it would cost to get 4:10's and have my car tuned?

[spike_africa]

he would have no top end? he has a 6speed he would have plenty of gear for over 160mph. How do you need any more then that? (reffering to your brother)

Gears installed runs from $150 to as high as $350 and a regular chip for your car from justin at www.vmptuning.com is only $269 which will add some power and raise the rev limiter and speed limiters as well as some other items.

[TMan21]

Originally Posted by cuban3jumper

And besides you don't need to be going 120+ on the street anyways.

What's wrong with that? ha just kidding

[The1Neo]

Originally Posted by spike_africa

he would have no top end? he has a 6speed he would have plenty of gear for over 160mph. How do you need any more then that? (reffering to your brother)

Gears installed runs from $150 to as high as $350 and a regular chip for your car from justin at www.vmptuning.com is only $269 which will add some power and get raise therev limiter and speed limiters as well as some other items.

maybe I read your post wrong. But i have a automatic 99 v6. Anyway I talked to my brother again. I always ask him stuff cause he goes to UTI and knows more about cars than I do. Anyway, he said that 4:10's would make my car terrible because it's a v6 and it woulden't have enough torque to do anything. He also said it would make it so much slower. So I dont know.

[MattJ]

Originally Posted by The1Neo

maybe I read your post wrong. But i have a automatic 99 v6. Anyway I talked to my brother again. I always ask him stuff cause he goes to UTI and knows more about cars than I do. Anyway, he said that 4:10's would make my car terrible because it's a v6 and it woulden't have enough torque to do anything. He also said it would make it so much slower. So I dont know.

Your brother is a moron then and you should no longer listen to him. Gears are essentially a torque multiplier. With 4.10s your car will accelerate substantially faster, not slower.

Go read the gear thread I sticky'd at the top of the general tech forums. It contains a lot of good information.

[cuban3jumper]

Originally Posted by The1Neo

maybe I read your post wrong. But i have a automatic 99 v6. Anyway I talked to my brother again. I always ask him stuff cause he goes to UTI and knows more about cars than I do. Anyway, he said that 4:10's would make my car terrible because it's a v6 and it woulden't have enough torque to do anything. He also said it would make it so much slower. So I dont know.

Yea, the .5 second loss in 1/4 time us auto 99+ V6 guys are seeing with 4.10's just makes the car "feel" slower. I can't get this thing moving:bash:

Sarcasmn at it's best lol

[Teal_Beast]

the 4.10s dont give you power, but rather multiply the torque. Thus making you faster.

look at it like this, your stock 99 v6 makes 225tq, with the first gear of 2.95 (or close to it) and a rearend gear of say 3.27 (i think that is what you have stock.) your looking at an equasion like this

225 * 2.95 *3.27 = 2170tq

so your looking at 2,170tq to the axle shafts (not the tires, the tires deduct some of that)

so with 4.10's your looking at

225 * 2.95 * 4.10 = 2721tq

so your looking at 2170 vs 2721 tq at the axle shafts.

this means you get better get-up-an-go.

the ONLY downside to gears is that it makes you go through your gears faster, so hypothetically, if your first gear takes you to 50MPH now, it might only take you to 40MPH after the gears (this is not what it will acctually do, just an example) AND like he said, your top GEAR LIMITED speed will be lower, but at the moment, you dont even have the power to get close to how fast your RPM/Gear will let you go, so its a irrelevent point.


Honestly your brother needs to do some learning before he gives you advice on stuff like this, because he doesnt know what he is talking about.

hope this helps

[TMan21]

maybe neo's bro thinks that the stang comes stock with bigger gears than 4.10s... doesnt make any sense at all, but hey its a possibility

i think his bro should stick to his pontiacs... ha ha i said pontiac on a mustang forum :censored: oh chit

[WaterDR]

Actually, his brother is correct. 4.10's will make the car slower as in lower the top speed. The car will accelerate faster, but have a lower top speed. Maybe that is what he meant.

[The1Neo]

Originally Posted by MT's#1Customer!

Actually, his brother is correct. 4.10's will make the car slower as in lower the top speed. The car will accelerate faster, but have a lower top speed. Maybe that is what he meant.

but if I get 4:10's and then have my car tuned at a dyno shop, won't that correct the top speed reduction that's caused by the bigger gears?

[spike_africa]

No it will not. When you change the rear gears it changes the amount of times the driveshaft turns for one revolution of the tires. so 4.10s are 1 revolotion of the driveshaft for 4.10 turns of the tires. So by doing this as you can see makes the car have alot less top speed (no that it matters you still wont ever touch the top of 4th gear with your car and 4.10's). You will need either atune via chip,tuner etc.. or you can get a speedo correction tool like the speedcal which will just fix the speedo. I would just get a chip as it will add power too and is only about $120 more to do so.

[The1Neo]

Originally Posted by spike_africa

No it will not. When you change the rear gears it changes the amount of times the driveshaft turns for one revolution of the tires. so 4.10s are 1 revolotion of the driveshaft for 4.10 turns of the tires. So by doing this as you can see makes the car have alot less top speed (no that it matters you still wont ever touch the top of 4th gear with your car and 4.10's). You will need either atune via chip,tuner etc.. or you can get a speedo correction tool like the speedcal which will just fix the speedo. I would just get a chip as it will add power too and is only about $120 more to do so.

Thanks for the info, but what type/kind of chip do you recomend?

[cuban3jumper]

Originally Posted by spike_africa

No it will not. When you change the rear gears it changes the amount of times the driveshaft turns for one revolution of the tires. so 4.10s are 1 revolotion of the driveshaft for 4.10 turns of the tires. So by doing this as you can see makes the car have alot less top speed (no that it matters you still wont ever touch the top of 4th gear with your car and 4.10's). You will need either atune via chip,tuner etc.. or you can get a speedo correction tool like the speedcal which will just fix the speedo. I would just get a chip as it will add power too and is only about $120 more to do so.

Just for future reference. The speedcal doesn't work on autos.

[spike_africa]

Originally Posted by The1Neo

Thanks for the info, but what type/kind of chip do you recomend?

For you it sound slike you just wanna make the speedo work and get some extra power without spending a ton of money, right?

Just go to www.vmptuning.com and order a SCT chip there $269(cheapest around) he is a kick ass tuner and loves v6's.

Also since when doesnt the speedcal work on auto's?

[cuban3jumper]

Originally Posted by spike_africa

For you it sound slike you just wanna make the speedo work and get some extra power without spending a ton of money, right?

Just go to www.vmptuning.com and order a SCT chip there $269(cheapest around) he is a kick ass tuner and loves v6's.

Also since when doesnt the speedcal work on auto's?

Since always. Only way to correct on a 99+ is with a chip/tune.