Twinscrewgt
Bad Smurf
4.30s FTW
3.73 or 4.10's That is the question
- Thread starter 2011GT1979
- Start date
On a blower car, I can't imagine putting higher gearing on. I have 3.73's on and 1st is already seriously short and it feels like I gotta shift ten times to get to 100. I'll be staying NA though and I always intended to stay NA. Had I decided to put a blower on it, I would have ordered 3.31's instead.
My advice is to keep your gearing at the 3.31 until you put the blower on. Once you have it on, then you can decide depending on how you drive it and how much power it has. You will not be able to put blower power down with 3.73's or higher. I have enough trouble as is. So whats the point of the power if you can't put it down??! As a daily driver it will be miserable. With all the torque the blower will make, you should just keep the taller gearing and ride the wave of torque out!! Car will be faster for sure. Remember, shorter gearing is used to multiply the torque of the engine. if YOu have a motor with big torque, you don't need the gear as much. See Dodge Vipers.
My advice is to keep your gearing at the 3.31 until you put the blower on. Once you have it on, then you can decide depending on how you drive it and how much power it has. You will not be able to put blower power down with 3.73's or higher. I have enough trouble as is. So whats the point of the power if you can't put it down??! As a daily driver it will be miserable. With all the torque the blower will make, you should just keep the taller gearing and ride the wave of torque out!! Car will be faster for sure. Remember, shorter gearing is used to multiply the torque of the engine. if YOu have a motor with big torque, you don't need the gear as much. See Dodge Vipers.
kyoshosp2
Senior Member
No kidding i cant get 5 cars out from a red light without having to shift to second. I hav 3:55s and i usually go to 3rd or 4th day to day driving. I cant imagine how short it would be with 373s or 410s ... just keep what you have if its a daily driver till you do the power adder. most the guys screaming 410 or higher just track the car or wk around the block from there house. Heck i like getting on the highway and not be at 3000 plus rpm.. Ill be doing a power adder here soon and i cant keep traction as it is. I also use a street tire cause we have tomuch damn rain for a drag radial to change out every 2 months..
bigbelly
not safe for work
How much should a gear ratio change job cost? I've been quoted "around $700" from a local race shop...sound about right?
jsnyng
Senior Member
That sounds pretty high to me. You can get the gears for $150, so that means they're charging you $550 for labor and materials (gear oil, friction modifier, etc.). I got mine done for $300 out the door ($150 gear, $150 install), but that was the "friend" price. There are a couple of reputable shops in Atlanta who quoted $400-$450 installed with them providing the FRPP gears.
Edited to add: I already had an SCT, so if $700 includes a tune/tuner, then that's not a bad price.
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stang910
Member
I have 3.73's and have to shift into 5th with my 26" tires. If I ride 4th out I hit the limiter (7300 rpm) right before the stripe. If you wanna switch to 3.73's or 4.10's count on having to use 5th gear.
RazorbackMustang
MT82 Lover
I'd stick with what you've got for now. Don't spend the money on a gear change as you may not like it after the power adder install and change them again. There goes money down the drain. Mine has 3.73s and I'm getting very near the limiter at the traps in bone stock form.
I had 4.10s in my 2v car, I never really cared for them and had I done it over again I would have gone 3.73. Anything over that and it's just about worthless for a street car, IMO.
I had 4.10s in my 2v car, I never really cared for them and had I done it over again I would have gone 3.73. Anything over that and it's just about worthless for a street car, IMO.
RazorbackMustang
MT82 Lover
IMO, it's MORE than worth it for factory gears. It's about a $395 option. Think about the cost of an aftermarket gear change. $200 for gears, $300 for install, $350 for a tuner to correct the speedometer. Get the 3.73 from the factory.
If you can order from the factory, make sure you get the gear you want, but I do highly recommend you get the gears you want from the factory. If there is any whining or issues, take it in under warranty! I love my 3.73's like I said, especially for what Im doing with my car, but I've driven 3.31 and 3.55 cars and they were just as nice if not as "revvy". It all depends on what you plan on doing.
Thank God you went out of your way to stop by!
I will never understand why so many people on these forums get so butt hurt about the search "feature". If you don't care to see a thread like one you may have seen before than continue on your merry way. Why stop in and read if it bothers you that much. And then on top of "wasting your time" readin this repost, you take even more time to post something that helps not one person.
To the OP, shoot for the 4:10's. Unless you are planning turbo like someone above said. Also, do not get raked over the coals with a gear install. Some places want as much as 1k for gears and install. I found a place in GA to do it for 399 out the door. Parts and labor. Good luck.
James
302
Senior Member
These assholes and their little bandwagon search comments are on my last nerve also.
RazorbackMustang
MT82 Lover
Agreed. Is it REALLY that big of a deal that someone asks a question that's already been asked? That's what these forums are for.
I disagree with 4.10s. I've seen at least one person who swapped to 4.10s and they are going back to 3.73 or 3.55 to keep from having to shift to 5th on the dragstrip. 4.10s even in a bone stock one will require a 5th gear shift. By the time you get some mods, perhaps a power adder, you're going to be shifting to 5th anyway even with 3.73s. Give yourself some room.
302
Senior Member
See, that's a problem i hated with my 2002 GT. When i was running at the drag strip, if i remember correctly its been so long ago, when i had 3:73's i would finish at the top of 3rd gear and i would have more room to shift to 4th but not enough to make use of it. Felt like it hurt my times and i would let off the gas right at the end and punch it again. I swapped to 4:10's and would finish well into 4th and my times improved. I know there are more drag racing solutions that changing gears, and people probably know better solutions to that. But that was my experience with 3:73 vs 4:10s. I know the newer mustangs are different from the older ones, but same principle exists.
SlowA$$5.0
Banned
Well I chose 3.31 gears because I knew I was putting a blower on it and was planning on running 26" tires, but I'm hitting the limiter in 3rd in the 1/8th so next I'm changing to a 28" tire and 3.73's. That going to be interesting on the street tires though seeing as I blow up the little 235's in second now.
Jason
Member
So I need a little advice.....I'm running about 550hp with my saleen s/c. Currently I have 3.55's and a 26" tire with a tr6060 tranny with no mods to the gears. Problem is I launch at around 3500rpms and I almost have to immediately shift into second. I want first to last longer so I can let the power ride out a little bit. Any suggestions on what gears I should use?
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