[3.90 vs 4.10] First drive comparison
Thread Starter
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
[3.90 vs 4.10] First drive comparison
First I want to thank Chuck at CoW for coming thru on his word
I'm sure everyone thats a regular here in C6 Tech knows I was never really happy with the 4.10.......anyways, having the car apart, I had Chuck do a clutch upgrade, I went with the Textralia OZ-700 Single Disc Clutch so it came out to be a win-win situation for both of us.
For those that say, "3.90? all youre gonna gain 100rmps" thats
6th gear @ 2,000rpm
4.10 =66mph
3.90 =75mph
under normal cruising 70mph
4.10= 21 mpg
3.90= 27 mpg
6th gear @ 100 mph
4.10 =3,000 rpms
3.90 =2,700 rpms
strong pulls
4.10, all you see is the rpm needle sweeping to red line, now my mph needle is the one thats doing the sweeping to the right.
The car now goes from 80 to 130 in a flash...
No longer do I have to shift the hell out of the car and only be doing 80mph.....
welcome2try has been in my car when I had the 4.10, I would like to invite him to come for a drive to feel the difference
-Ed
I'm sure everyone thats a regular here in C6 Tech knows I was never really happy with the 4.10.......anyways, having the car apart, I had Chuck do a clutch upgrade, I went with the Textralia OZ-700 Single Disc Clutch so it came out to be a win-win situation for both of us.
For those that say, "3.90? all youre gonna gain 100rmps" thats
6th gear @ 2,000rpm
4.10 =66mph
3.90 =75mph
under normal cruising 70mph
4.10= 21 mpg
3.90= 27 mpg
6th gear @ 100 mph
4.10 =3,000 rpms
3.90 =2,700 rpms
strong pulls
4.10, all you see is the rpm needle sweeping to red line, now my mph needle is the one thats doing the sweeping to the right.
The car now goes from 80 to 130 in a flash...
No longer do I have to shift the hell out of the car and only be doing 80mph.....
welcome2try has been in my car when I had the 4.10, I would like to invite him to come for a drive to feel the difference
-Ed
Last edited by C6 DVL; Apr 11, 2008 at 04:42 PM.
Safety Car
Joined: Dec 2005
Posts: 4,157
Likes: 37
From: North Carolina
St. Jude Donor '07-'08-'09-'11-'12
Glad you are happy, nice to give Chuck the clutch at the same time.
Looks like you are now at pretty much the same place as me RPM wise with my 4.10s and the F55 (base) trans gearing (Im at about 1900rpm at 73 or so)....of course.....you're all cammed up and ahead of me....for now at least
Anyone want a great deal on a slightly used set of 4.10s??
Looks like you are now at pretty much the same place as me RPM wise with my 4.10s and the F55 (base) trans gearing (Im at about 1900rpm at 73 or so)....of course.....you're all cammed up and ahead of me....for now at least
Anyone want a great deal on a slightly used set of 4.10s??
Last edited by Craigster05; Apr 11, 2008 at 03:28 PM.
Melting Slicks
Joined: May 2006
Posts: 2,891
Likes: 1
From: NJ..."the way I saw it, everyone takes a beating sometimes."
You are aware of what you're starting, right Ed?
This should be interesting...
Glad you're happy with your set up. That's all that matters. Enjoy and good job Chuck.
This should be interesting... Glad you're happy with your set up. That's all that matters. Enjoy and good job Chuck.
Thread Starter
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
Glad you are happy, nice to give Chuck the clutch at the same time.
Looks like you are now at pretty much the same place as me RPM wise with my 4.10s and the F55 (base) trans gearing (Im at about 1900rpm at 73 or so)....of course.....you're all cammed up and ahead of me....for now at least
Anyone want a great deal on a slightly used set of 4.10s??
Looks like you are now at pretty much the same place as me RPM wise with my 4.10s and the F55 (base) trans gearing (Im at about 1900rpm at 73 or so)....of course.....you're all cammed up and ahead of me....for now at least
Anyone want a great deal on a slightly used set of 4.10s??
4.10s with base tranny is the same as 3.90's w/ Z-51
I am fully aware ...but this thread is different, it's based on a driving experience, identical car, diff rears. I cant possibly see someone arguing with me based on what they heard vs me driving a 3.90s & 4.10s, but then again, this is C6 Tech
Melting Slicks
Joined: May 2006
Posts: 2,891
Likes: 1
From: NJ..."the way I saw it, everyone takes a beating sometimes."
My gears were sold thru CoW to someone that wanted to save a couple bucks on 4.10 w/ both harden output shafts
4.10s with base tranny is the same as 3.90's w/ Z-51
I am fully aware ...but this thread is different, it's based on a driving experience, identical car, diff rears. I cant possibly see someone arguing with me based on what they heard vs me driving a 3.90s & 4.10s, but then again, this is C6 Tech
but this should still be fun. I enjoy your posts....so stop getting banned.
Thread Starter
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Jul 2004
Posts: 24,652
Likes: 298
From: NJ
St. Jude Donor '05-'08
Thread Starter
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
......the car is so much faster now, it scared me last night
Team Owner
Joined: Jul 2004
Posts: 24,652
Likes: 298
From: NJ
St. Jude Donor '05-'08
Melting Slicks
Joined: Feb 2006
Posts: 2,007
Likes: 1
From: Eastern PA:ECS Paxton Novi 1500(676rwhp,585tq on stock engine),LG headers, 410's, Corsa Sports, ECS Alky Kit
St. Jude Donor '08-'09
under normal cruising 70mph
4.10= 21 mph
3.90= 27 mph
strong pulls
4.10, all you see is the rpm needle sweeping to red line, now my mph needle is the one thats doing the sweeping to the right.
The car now goes from 80 to 130 in a flash...
No longer do I have to shift the hell out of the car and only be doing 80mph.....
-Ed
4.10= 21 mph
3.90= 27 mph
strong pulls
4.10, all you see is the rpm needle sweeping to red line, now my mph needle is the one thats doing the sweeping to the right.
The car now goes from 80 to 130 in a flash...
No longer do I have to shift the hell out of the car and only be doing 80mph.....
-Ed
I assume you meant 4.10 = 21mpG and 3.90 27mpG, you cant be serious about this!!! There is not a 30% mileage difference from 4.10's to 3.90's. Must have been uphill one way and down hill the other. Also if you were only getting 21mpg @ 70 with the 410's something else was way off. I do WAAAAY better than that with 410's and an ECS blower.Re: shifting the hell out of the car and now you dont have to???? Come on Ed, I'm glad you like the 3.90's but there is not THAT much of a difference that you are shifting substantially less.
I'm sure Spin will chime in, but I would bet that the car went from 80 to 130 faster with the 410's than the 3.90's (except you might require an extra shift around the high end).
This was funny to read
, I'm glad you love the gears, but lets not exagerrate here, there isn't that much of a difference. It's your car and the most important part is that you are happy!!
Moderator
Joined: Dec 2002
Posts: 40,898
Likes: 4,351
From: Lakewood Ranch, FL
I'm glad you are happy and that is what counts. That said, I rather doubt that the car is "so much faster now" - a buck thirty is a buck thirty regardless of the gears. There is only about 5% difference in the gearing. My MZ6/4.10 car got 25mpg on average on the road - down from about 27. (Don't have a clue what it will get now with the new motor ) So a 3.90 in my car would have been somewhere in between 25 and 27 and closer to 25....
There is only about 5% difference in the gearing. My MZ6/4.10 car got 25mpg on average on the road - down from about 27. (Don't have a clue what it will get now with the new motor ) So a 3.90 in my car would have been somewhere in between 25 and 27 and closer to 25....
Thread Starter
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
I assume you meant 4.10 = 21mpG and 3.90 27mpG, you cant be serious about this!!! There is not a 30% mileage difference from 4.10's to 3.90's. Must have been uphill one way and down hill the other. Also if you were only getting 21mpg @ 70 with the 410's something else was way off. I do WAAAAY better than that with 410's and an ECS blower.Re: shifting the hell out of the car and now you dont have to???? Come on Ed, I'm glad you like the 3.90's but there is not THAT much of a difference that you are shifting substantially less.
I'm sure Spin will chime in, but I would bet that the car went from 80 to 130 faster with the 410's than the 3.90's (except you might require an extra shift around the high end).
This was funny to read
, I'm glad you love the gears, but lets not exagerrate here, there isn't that much of a difference. It's your car and the most important part is that you are happy!! RE: Shifting,
to coast/cruise w/ 4.10 around 45~50mpH I would have to be in 5th gear.....everyone keeps saying there's not much of a diff, but there is.....I'll be making some drive video's.
Spin can chime in, Spin can even drive it.....80 to 130 was effordless, my speedometer needle was sweeping faster than the rpm needle and I didnt realize how fast the car got to 130+...........w/4.10, pass 110 I had to floor it & shift
I love it, and it's exactly what I wanted out of the car, a happy medium
You guys do remember what happened at the end of Chicken Little? The sky did fall down
Safety Car
Joined: Dec 2005
Posts: 4,157
Likes: 37
From: North Carolina
St. Jude Donor '07-'08-'09-'11-'12
Uh-huh...sure it did...dude, Ive seen you drive....the ONLY thing that scares you is Fugu Sushi
Dont look for it for a few days, he's in the middle of a H/C install in other parts of the US
)
Race Director
Joined: Feb 2006
Posts: 11,733
Likes: 15
From: SC
First I want to thank Chuck at CoW for coming thru on his word
I'm sure everyone thats a regular here in C6 Tech knows I was never really happy with the 4.10.......anyways, having the car apart, I had Chuck do a clutch upgrade, I went with the Textralia OZ-700 Single Disc Clutch so it came out to be a win-win situation for both of us.
For those that say, "3.90? all youre gonna gain 100rmps" thats
6th gear @ 2,000rpm
4.10 =66mph
3.90 =75mph
under normal cruising 70mph
4.10= 21 mpg
3.90= 27 mpg
6th gear @ 100 mph
4.10 =3,000 rpms
3.90 =2,700 rpms
strong pulls
4.10, all you see is the rpm needle sweeping to red line, now my mph needle is the one thats doing the sweeping to the right.
The car now goes from 80 to 130 in a flash...
No longer do I have to shift the hell out of the car and only be doing 80mph.....
welcome2try has been in my car when I had the 4.10, I would like to invite him to come for a drive to feel the difference
-Ed
I'm sure everyone thats a regular here in C6 Tech knows I was never really happy with the 4.10.......anyways, having the car apart, I had Chuck do a clutch upgrade, I went with the Textralia OZ-700 Single Disc Clutch so it came out to be a win-win situation for both of us.
For those that say, "3.90? all youre gonna gain 100rmps" thats
6th gear @ 2,000rpm
4.10 =66mph
3.90 =75mph
under normal cruising 70mph
4.10= 21 mpg
3.90= 27 mpg
6th gear @ 100 mph
4.10 =3,000 rpms
3.90 =2,700 rpms
strong pulls
4.10, all you see is the rpm needle sweeping to red line, now my mph needle is the one thats doing the sweeping to the right.
The car now goes from 80 to 130 in a flash...
No longer do I have to shift the hell out of the car and only be doing 80mph.....
welcome2try has been in my car when I had the 4.10, I would like to invite him to come for a drive to feel the difference
-Ed
I'll also agree with the others that say your car isn't much faster with 3.90's in the 80-130 range, that's like saying your car would be even faster with 3.42's then w/3.90's.
The only thing that can effect it is your 485rwhp. I know with the 4.10's my car is amazing fun on the street and pulls harder in each and every gear compared to stock 3.42's. I'll also be able to finish the track in 4th gear because I'm short about 110rwhp compared to your vette.
In the end though it's about what makes you happy, sounds like your gonna be set with the 3.90's. They'll give you enough 4th gear to be through the 1/4 with your trap speed.
BTW did you ever try shifting to 5th on a pass? If so how much did it hurt your times.
(In my former 3000GT VR4 I would bang the 3rd gear limiter right before the traps and hit 112mph, a shift to 4th in those last 50ft would drop my trap to 109-110mph.....it sucked!)
Thread Starter
Team Owner
Joined: May 2002
Posts: 26,900
Likes: 2
From: Bann Camp & N.Y.C.
St. Jude Donor '08
Well, I'm all set for this Sundays Exotic Rally
Cars
Possibly Koenigsegg CCX or Bugatti Veyron
Acura NSX 1
Ariel Atom 1
Aston Martin DB7 1
Aston Martin Vanquish 1
Audi Coupe Quattro 1
Audi R8 1
Audi RS4 1
Bentley GT 1
BMW 330 1
BMW 330ci 1
BMW 650 1
BMW M Coupe 1
BMW M3 5
BMW M6 3
BMW Z8 1
Ferrari 348 2
Ferrari 348 Spyder 1
Ferrari 355 1
Ferrari 360 1
Ferrari 575M 1
Ferrari 612 2
Ferrari Enzo 1
Ferrari F360 Spider 1
Ferrari F430 1
Ferrari F430 Spider 3
Ford GT 2
Ford GT500 1
Lamborghini Countach 1
Lamborghini Diablo 1
Lamborghini Diablo Roadster 1
Lamborghini Diablo VT 1
Lamborghini Gallardo 7
Lamborghini Gallardo Nera 1
Lamborghini Gallardo SL 2
Lamborghini Gallardo Spyder 1
Lamborghini Murcielago 5
Lamborghini Murcielago LP640 1
Lamborghini Murcielago LP640 Roadster 1
Lotus Elise 1
Maserati QP Sport GT 1
MB CLK 1
MB E55 AMG 2
MB SL55 2
MB SL65 2
Mclaren SLR 1
Mustang 1
Mustang Roush 1
Nissan 350Z 1
Noble M12 2
Pontiac GTO 1
Porsche Boxter 1
Porsche 911 1
Porsche 930 1
Porsche 996 3
Porsche 996 C2 2
Porsche 996 GT2 1
Porsche 996TT 5
Porsche 997 3
Porsche 997 C4S 1
Porsche 997 Cab 1
Porsche 997 GT3 1
Porsche 997 GT3RS 1
Porsche 997 Targa 4S 1
Porsche 997S 1
Porsche 997TT 1
Porsche C4S 2
Porsche Carrera GT 3
Porsche Carrera S 1
Porsche Cayman S 2
Porsche RUF GT2 1 <----------------the only one I fear of (750rwhp+maniac driver)
Vette 15
Vette Z06 3
Viper 3
Viper TT 1
Total 130
Possibly Koenigsegg CCX or Bugatti Veyron
Acura NSX 1
Ariel Atom 1
Aston Martin DB7 1
Aston Martin Vanquish 1
Audi Coupe Quattro 1
Audi R8 1
Audi RS4 1
Bentley GT 1
BMW 330 1
BMW 330ci 1
BMW 650 1
BMW M Coupe 1
BMW M3 5
BMW M6 3
BMW Z8 1
Ferrari 348 2
Ferrari 348 Spyder 1
Ferrari 355 1
Ferrari 360 1
Ferrari 575M 1
Ferrari 612 2
Ferrari Enzo 1
Ferrari F360 Spider 1
Ferrari F430 1
Ferrari F430 Spider 3
Ford GT 2
Ford GT500 1
Lamborghini Countach 1
Lamborghini Diablo 1
Lamborghini Diablo Roadster 1
Lamborghini Diablo VT 1
Lamborghini Gallardo 7
Lamborghini Gallardo Nera 1
Lamborghini Gallardo SL 2
Lamborghini Gallardo Spyder 1
Lamborghini Murcielago 5
Lamborghini Murcielago LP640 1
Lamborghini Murcielago LP640 Roadster 1
Lotus Elise 1
Maserati QP Sport GT 1
MB CLK 1
MB E55 AMG 2
MB SL55 2
MB SL65 2
Mclaren SLR 1
Mustang 1
Mustang Roush 1
Nissan 350Z 1
Noble M12 2
Pontiac GTO 1
Porsche Boxter 1
Porsche 911 1
Porsche 930 1
Porsche 996 3
Porsche 996 C2 2
Porsche 996 GT2 1
Porsche 996TT 5
Porsche 997 3
Porsche 997 C4S 1
Porsche 997 Cab 1
Porsche 997 GT3 1
Porsche 997 GT3RS 1
Porsche 997 Targa 4S 1
Porsche 997S 1
Porsche 997TT 1
Porsche C4S 2
Porsche Carrera GT 3
Porsche Carrera S 1
Porsche Cayman S 2
Porsche RUF GT2 1 <----------------the only one I fear of (750rwhp+maniac driver)
Vette 15
Vette Z06 3
Viper 3
Viper TT 1
Total 130