C7 3:90 & 4:10 Gears
02-12-2017, 03:08 PM
#61
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Co-winner 2020 C4 of the Year - Modified
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03-12-2017, 07:19 PM
#63
Burning Brakes
Thread Starter
03-13-2017, 05:24 PM
#64
Burning Brakes
If i put the 3.90 would the ratios of the gear change ?
1st=51 mph
2nd=73 mph
3rd=106 mph
4th= 151
So if i put the 3.90 would that change ?
1st=51 mph
2nd=73 mph
3rd=106 mph
4th= 151
So if i put the 3.90 would that change ?
03-13-2017, 05:59 PM
#65
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For sure will hit those speed in a short distain's.
03-14-2017, 08:20 AM
#66
Melting Slicks
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Robert,
The following are the vehicle speeds at 6,500 rpms in each of the first six gears for a C7 Z06 with the standard 3.42, and the soon to be released 3.90, and 4.10 ring and pinion gear sets:
------3.42 ----- 3.90 ----- 4.10
1st - 65.7 ----- 57.6 ----- 54.5
2nd - 93.3 ---- 81.3 ----- 77.9
3rd - 124.5 --- 109.2 --- 103.8
4th - 150.4 --- 131.9 --- 125.4
5th - 185.0 --- 162.2 --- 154.3
6th - 224.1 --- 196.5 --- 186.9
*
Last edited by Pumba; 03-14-2017 at 08:21 AM.
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WarHammer619 (01-09-2018)
05-02-2017, 05:54 AM
#68
Safety Car
Are the differentials the same in the Z06, Stingray, Z51, and GS... other than the electronic limited slip feature?
.
05-02-2017, 06:01 AM
#69
Safety Car
We could have easily had the equivalent of 3.90 or 4.10 had GM gotten off their butt and geared 1st thru 4th, or even 5th, better for performance and acceleration, and still met mandates for mpg. Arrrgh.
.
.
05-03-2017, 01:58 PM
#70
Platinum Supporting Vendor
No nothing new yet. The original run of gears was off, they are working on it right now. No ETA.
05-04-2017, 12:28 AM
#71
this is why we run the z51 tranny gears in the z06. its not that the 3.90 or 4.10 arent good, but for drag racing the key is to go through in 4th gear 1/1 ratio. if making big power this is the best of all worlds.
05-21-2017, 05:40 PM
#73
Drifting
If you wannabe's actually think the C7 makes a good drag car maybe you should take a walk around the pits and see what other racers are using. In NHRA class racing Corvettes are forbidden to employ an IRS type rear suspension. Think about what happens when the rear end squats and the rear wheel camber changes drastically, attempting to lift the outer edges of the rear tires. If your serious about racing, 3.90's of 4.10's are considered girly gears. Put a Ford 9 inch under your vette and you'll never break again and your gear selection is unlimited. It's a SPORTS car, not a DRAG car.
Last edited by Bubbletop409; 05-21-2017 at 05:44 PM.
05-21-2017, 07:04 PM
#74
I'm Batman..
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Tech Contributor
If you wannabe's actually think the C7 makes a good drag car maybe you should take a walk around the pits and see what other racers are using. In NHRA class racing Corvettes are forbidden to employ an IRS type rear suspension. Think about what happens when the rear end squats and the rear wheel camber changes drastically, attempting to lift the outer edges of the rear tires. If your serious about racing, 3.90's of 4.10's are considered girly gears. Put a Ford 9 inch under your vette and you'll never break again and your gear selection is unlimited. It's a SPORTS car, not a DRAG car.
05-21-2017, 07:15 PM
#75
Drifting
If you wannabe's actually think the C7 makes a good drag car maybe you should take a walk around the pits and see what other racers are using. In NHRA class racing Corvettes are forbidden to employ an IRS type rear suspension. Think about what happens when the rear end squats and the rear wheel camber changes drastically, attempting to lift the outer edges of the rear tires. If your serious about racing, 3.90's of 4.10's are considered girly gears. Put a Ford 9 inch under your vette and you'll never break again and your gear selection is unlimited. It's a SPORTS car, not a DRAG car.
Last edited by bigsapper; 05-21-2017 at 07:16 PM.
05-21-2017, 07:53 PM
#77
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If you wannabe's actually think the C7 makes a good drag car maybe you should take a walk around the pits and see what other racers are using. In NHRA class racing Corvettes are forbidden to employ an IRS type rear suspension. Think about what happens when the rear end squats and the rear wheel camber changes drastically, attempting to lift the outer edges of the rear tires. If your serious about racing, 3.90's of 4.10's are considered girly gears. Put a Ford 9 inch under your vette and you'll never break again and your gear selection is unlimited. It's a SPORTS car, not a DRAG car.
The C7 can benefit from more rear gear even for street driving, but the sweet spot is getting through the traps at the top of your 1:1 gear and no one is changing their trans ratios. It's about having fun, not running a competitive bracket racing circuit.
And just for the record, drag racing was mentioned once by one poster before your post in this thread so maybe your hot sports opinion might be a little bit of projecting..... BTW, the first thing I would do with the car in your avatar is sell it, what an ugly beast, don't you know a nice car when you see it? Talk about a misappropriation of metal and paint!
05-21-2017, 11:20 PM
#78
Drifting
Take a walk around the pits? No one here is running these cars in the NHRA (I run an NHRA/IHRA Super Stock car, btw). The rear gear needed also depends on the transmission gearing so if you want to run 5.83s with a transmission that comes in a C7.....good luck. Low gears like that are good for power glides and some three speeds.
The C7 can benefit from more rear gear even for street driving, but the sweet spot is getting through the traps at the top of your 1:1 gear and no one is changing their trans ratios. It's about having fun, not running a competitive bracket racing circuit.
And just for the record, drag racing was mentioned once by one poster before your post in this thread so maybe your hot sports opinion might be a little bit of projecting..... BTW, the first thing I would do with the car in your avatar is sell it, what an ugly beast, don't you know a nice car when you see it? Talk about a misappropriation of metal and paint!
The C7 can benefit from more rear gear even for street driving, but the sweet spot is getting through the traps at the top of your 1:1 gear and no one is changing their trans ratios. It's about having fun, not running a competitive bracket racing circuit.
And just for the record, drag racing was mentioned once by one poster before your post in this thread so maybe your hot sports opinion might be a little bit of projecting..... BTW, the first thing I would do with the car in your avatar is sell it, what an ugly beast, don't you know a nice car when you see it? Talk about a misappropriation of metal and paint!
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Dez’sC7 (01-09-2019)
05-21-2017, 11:30 PM
#79
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Do a search on the current value of a 1962 Chevrolet Bel-Air Bubbletop, all original 4 speed, dual quad, positraction, 409, worth a lot more than most any later model C7. If your truly just having fun breaking parts left and right knock your self out, and if your not drag racing what difference does the gear ratio make on the street? Your not breaking spiders by taking off from a stop sign on the street. At least be honest.
My point is, you like it. Some people like putting gears in their car. So what's it to you?
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GTX JOHN (05-21-2017)
05-22-2017, 12:03 AM
#80
I will do whatever I damn well please with my cars.
Our family runs several NHRA Stock and Superstock cars as well.
My street Corvettes with stock suspension and often = the only change
has been gear changes and drag radials.......Have won a 1/2 dozen track
championships and competed in World Finals for Divisional champions
The outstanding braking and ability to adjust shift points make for a excellent
and effective bracket racer.
Time for bed.........Just got back from LVMS track where I got to Final Round
in my new unmodified Corvette (Mostly due to the Corvette not the Elderly owner).
BTW: I hate 1962 Bubble Tops! Back in early 60's I did enjoy watching them puke
driveshafts weekly at Lions trying to beat my Max Wedge Mopars.
John Irving
Our family runs several NHRA Stock and Superstock cars as well.
My street Corvettes with stock suspension and often = the only change
has been gear changes and drag radials.......Have won a 1/2 dozen track
championships and competed in World Finals for Divisional champions
The outstanding braking and ability to adjust shift points make for a excellent
and effective bracket racer.
Time for bed.........Just got back from LVMS track where I got to Final Round
in my new unmodified Corvette (Mostly due to the Corvette not the Elderly owner).
BTW: I hate 1962 Bubble Tops! Back in early 60's I did enjoy watching them puke
driveshafts weekly at Lions trying to beat my Max Wedge Mopars.
John Irving
Last edited by GTX JOHN; 05-22-2017 at 12:12 AM.
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thrilled (05-23-2017)