do you run 4.10 gears?
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
do you run 4.10 gears?
I'm wondering how many of you are running deep gears. I already activate the traction control just about every day and I have a feeling that with 4.10's it would be a lot worse 
I'm kind of on the fence on getting these (especially since my hours just got cut back at both jobs and I'm job hunting), but this seems to be the best bang for the buck. With the few things I've done to increase the power so far I don't think there is much else I'd want to do to get more power out of it, but deeper gears would certainly help to get it up into the higher end of the power output area.
I'm kind of on the fence on getting these (especially since my hours just got cut back at both jobs and I'm job hunting), but this seems to be the best bang for the buck. With the few things I've done to increase the power so far I don't think there is much else I'd want to do to get more power out of it, but deeper gears would certainly help to get it up into the higher end of the power output area.
AMP Racing
Joined: Aug 2006
Posts: 10,756
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
I love 4.10s
Crazy fun on the street and almost a must if you want to run quick times (NA) at the track.
You'll turn a bit higher rpms on the highway, but it's not obnoxious at all
just my opinion.
Crazy fun on the street and almost a must if you want to run quick times (NA) at the track.
You'll turn a bit higher rpms on the highway, but it's not obnoxious at all
just my opinion.
Burning Brakes
Joined: Aug 2006
Posts: 754
Likes: 2
From: dothan alabama
Just make sure you dont plan on going FI down the road, I am contemplating a blower in the fall and the 4.10's are probably gonna be a little much
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
Gears puts you in the power band quicker 
Go for it if your staying N/A
Le Mans Master
Joined: Jun 2002
Posts: 8,352
Likes: 103
From: In the pit, trying to love someone.
Got em, I have mixed feelings about them. The car definitely gets out of the hole quicker, which I like. I shift more, which I don't like. Also, the car seemed to pull harder at speed with 3.90's, and especially more with 3.42's. I have a LOT of other mods though, and have zero experience with gears and a bolt on car.
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Team Owner
Joined: Jul 2004
Posts: 24,652
Likes: 298
From: NJ
St. Jude Donor '05-'08
When I had 4.10s I loved them. If it wasn't for road racing I would have kept them. I find I shifted less with 4.10s cause I could skip gears or cruise in a higher gear and still have power. Probably comes down to driving style.
When I went to bigger hp I dropped down to 3.73 which was another great match. Eventually because of what I use the car for I drilled back to 3.42s but if the car was ever going to be a street car again the 3.42s would come out.
When I went to bigger hp I dropped down to 3.73 which was another great match. Eventually because of what I use the car for I drilled back to 3.42s but if the car was ever going to be a street car again the 3.42s would come out.
Pro
Joined: Mar 2007
Posts: 507
Likes: 5
From: Macungie Pa
I have 4.10's with my mn12 and I wish 1st gear weren't such a blurr.
My favorite is wringing out 3rd, 4th gears together, feels like the car wants to fly....
City driving I use 1-3-5,6 and its still quick.
My favorite is wringing out 3rd, 4th gears together, feels like the car wants to fly....
City driving I use 1-3-5,6 and its still quick.
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
All I've done so far is the ti cat-back, a set of GMPP wires and the Vararam. I'd like to do a Z06 intake and maybe a set of B&B shorty headers. I'm in California so I can't do long tubes.
As it is, I already skip gears just because it's so smooth and torquey. I realize I could end up shifting a little more, but it still won't be anything like my MR2 was. That had 4.53 gears with 23" tires and a 6-speed.
legman, that's an interesting point about 1st gear. I'll keep that in mind.
As it is, I already skip gears just because it's so smooth and torquey. I realize I could end up shifting a little more, but it still won't be anything like my MR2 was. That had 4.53 gears with 23" tires and a 6-speed.
legman, that's an interesting point about 1st gear. I'll keep that in mind.
AMP Racing
Joined: Aug 2006
Posts: 10,756
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
You have a different first gear ratio than Legman. So it will be less likely to be an issue.
Pro
Joined: Jul 2008
Posts: 612
Likes: 17
From: Coatesville PA
If you dont have a Z you wont have to worry about 1st gear being as short.
do you plan to take it to the track? if so i would get the hardened shafts while your in there.
I learned the hard way....got my 4.10's in and did my break-in miles...so i went to the track and on my second run broke my left output shaft.
4.10's are my favorite gear!!!
do you plan to take it to the track? if so i would get the hardened shafts while your in there.
I learned the hard way....got my 4.10's in and did my break-in miles...so i went to the track and on my second run broke my left output shaft.
4.10's are my favorite gear!!!
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
If I go this route, I'll do better output shafts.
I'm keeping legman's comments in mine since my trans seems to have problems with the 1st and 2nd synchros. I think the original owner (not the 2nd owner that I bought it from) didn't know how to drive a stick very well. If I end up having to tear into the trans, I was thinking of just getting a Z06 trans for the improved gear ratios. Maybe with 4.10's I wouldn't need to go that route and could just repair this trans when the time comes.
I'm keeping legman's comments in mine since my trans seems to have problems with the 1st and 2nd synchros. I think the original owner (not the 2nd owner that I bought it from) didn't know how to drive a stick very well. If I end up having to tear into the trans, I was thinking of just getting a Z06 trans for the improved gear ratios. Maybe with 4.10's I wouldn't need to go that route and could just repair this trans when the time comes.
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
Yes from what ive read in the past, a Z06 trans with 3.42 diff gears in reality has a final drive ratio of 3.90 or close to it.
Pro
Joined: Mar 2007
Posts: 507
Likes: 5
From: Macungie Pa
Under normal city driving, there's a slight difference between 3.42s and 4.10s. I found that what was 2000, 2500 rpm gear changes are now at 2500 rpm minimum.
And until I learned better throttle control, WOT in 1st gear was just a blurr.
Do I regret having 4.10s......no way, I love mine...
And until I learned better throttle control, WOT in 1st gear was just a blurr.
Do I regret having 4.10s......no way, I love mine...
Le Mans Master
Joined: Dec 2005
Posts: 8,578
Likes: 963
From: Communist Colorado
What about when you have a cammed car? I have a Torquer V2 and of course the headers and all the other bolt ons that go along with a cammed car. I know you have to try to match the gears with the power band of the cam for best results. Are the 4:10 too much or would 3:73 or a 3:90 be better?
Not rying to hijack, just didnt want to start a seperate 4:10 thread.
Not rying to hijack, just didnt want to start a seperate 4:10 thread.
Melting Slicks
Joined: Jan 2004
Posts: 3,012
Likes: 15
From: Jensen Beach FL
I have 4:10's and also love them. They make normal driving so much more fun. No more clutch chatter on take off. I don't shift any more, in fact I shift less. I will shift 1-3-5 or 1-3-6 a lot of times or 2-4-6 from a slow roll. I can use 6th now around town. Best bang for the buck and they don't require any special maintenance like lifter springs when you do a cam.
Melting Slicks
Joined: Mar 2008
Posts: 2,962
Likes: 254
From: Richmond, Ky
What he said, I have bolt on's and aside from LT's by far my favorite mod. There car feels awesome with the 4.10's and is what go me in the 11's with bolts ons! I still get 31mpg's on the hwy with the cruise on 80.
Just make sure you dont plan on going FI down the road, I am contemplating a blower in the fall and the 4.10's are probably gonna be a little much
Just make sure you dont plan on going FI down the road, I am contemplating a blower in the fall and the 4.10's are probably gonna be a little much
4:10's, 80mph, 31mpg.... Hmmmm