4.10 Gears. Any Downsides?
Le Mans Master
Joined: May 2006
Posts: 8,824
Likes: 3
From: The left Coast
St. Jude Donor '08
Assuming you have a manual you'll be shifting from first to second almost instantly. Gas mileage will suffer a little because you'll be revving higher and qucker. It's also pretty easy to break the wheels loose but then isn't that what it's all about?
I don't really know what just doing the gears will do because I did gears, heads, cam, etc..etc.. at the same time. My car is fast, very fast and almost too much fun.
I don't really know what just doing the gears will do because I did gears, heads, cam, etc..etc.. at the same time. My car is fast, very fast and almost too much fun.
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
Yes you would notice a change in SOTP. I already drove a friend's car (non Z51 MN6 transmission) with similar mods (and hpr numbers) plus 4:10 gears and it feels like a different car.
At the track (and for you, it is E-Town), that mod is good for appx .3 in the 1/4 mile. I am planning on 4:10's and a Callaway short throw shifter within the next month or so. If you want to drive it when it is done, PM me. Car already has Kooks headers, hi flo cats with X-pipe, Callaway CAI, 160 degree thermo and a tune by Cartek; 384.5 rwhp and 373.7 tq. If your car is stock, mine already has some mild work so you can see that difference if you want to drive it before gears. When the gears are done, you can see that improvement as well. My office is located in Freehold.
Also, if you are doing 150 down Route 18 (or, for that matter, any other road in NJ) keep my e-mail handy. You are going to need me to represent you in court. I will extend you the "Corvette Owners Group" discount.................
At the track (and for you, it is E-Town), that mod is good for appx .3 in the 1/4 mile. I am planning on 4:10's and a Callaway short throw shifter within the next month or so. If you want to drive it when it is done, PM me. Car already has Kooks headers, hi flo cats with X-pipe, Callaway CAI, 160 degree thermo and a tune by Cartek; 384.5 rwhp and 373.7 tq. If your car is stock, mine already has some mild work so you can see that difference if you want to drive it before gears. When the gears are done, you can see that improvement as well. My office is located in Freehold.
Also, if you are doing 150 down Route 18 (or, for that matter, any other road in NJ) keep my e-mail handy. You are going to need me to represent you in court. I will extend you the "Corvette Owners Group" discount.................
Team Owner
Joined: Sep 2005
Posts: 29,113
Likes: 2,194
From: Big Bend Country, TX
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Thread Starter
Pro
Joined: Aug 2007
Posts: 696
Likes: 133
From: Central Jersey
That's ironic since I was just doing 150+ with some modded 911 Turbos yesterday.
I know a supercharged auto 03 Mustang GT with 4.10 gears. He says he can only go up to 115mph. I don't think I'll have this problem but will the 4.10s make me lose some top end acceleration for the gain of 1/4 mile time?
Safety Car
Joined: Dec 2005
Posts: 4,157
Likes: 37
From: North Carolina
St. Jude Donor '07-'08-'09-'11-'12
Use the search feature, there is plenty of discussion threads and information here to help you and answer your first post.
But to answer your last question, at 75mph I am only taching 1900rpm. I have been over 160 with plenty of room left to go at the top.
Here's another thread to look at:
http://forums.corvetteforum.com/show....php?t=1845068
But to answer your last question, at 75mph I am only taching 1900rpm. I have been over 160 with plenty of room left to go at the top.
Here's another thread to look at:
http://forums.corvetteforum.com/show....php?t=1845068
Safety Car
Joined: Jul 2006
Posts: 4,647
Likes: 1
From: Objects in your mirror are losing , Long Island, NY
St. Jude Donor '08
From 30 to 150mph superfast, check out my mods. For the street no single mod will give you the acceleration you get with 4.10's best bang for the dollar. Do a search on 4.10 gears here in c6 tech, every single week this subject comes up 2 to 3 times.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
That's ironic since I was just doing 150+ with some modded 911 Turbos yesterday.
I know a supercharged auto 03 Mustang GT with 4.10 gears. He says he can only go up to 115mph. I don't think I'll have this problem but will the 4.10s make me lose some top end acceleration for the gain of 1/4 mile time?
According to my conversations with Dave at Cartek, 4:10's might actually raise the top speed from 186 mph to 190 mph or more because 4:10's turn 6th into a pulling gear, unlike the mega overdrive gear it is now. Essentially, 4:10's turn your present 6th into your present 5th gear with a little extra kick at the top end and a whole lot of extra grunt in the lower gears. I have been told that 4:10's are the way to go UNLESS you intend to go forced induction, build a ridiculously stout NA motor, or road race your car.
After my gears, shifter and cat back (added to the present mods), I might forego the head/cam and leave well enough alone. I only want to break into the 11s and I am reasonably certain I will have enough, at that point, to do so.
Advanced
Joined: Apr 2007
Posts: 69
Likes: 0
The downside is that I don't have mine in yet but will when Rick at Synergymotorsports gets them in next week. I have done alot of research on the 4:10's and 99% have all said 4:10's are they way to go especially for city driving like I do. 
Safety Car
Joined: Jun 2006
Posts: 3,717
Likes: 2
From: Westlake Village, Ca
Mathematically, the 4:10's are 20% shorter than 3:42's. If you had the HPR to use 6th gear to redline with 3:42 final drive, top speed is a theoretical 254 mph. With 4:10's, 6th is mathematically limited to 205 mph.
According to my conversations with Dave at Cartek, 4:10's might actually raise the top speed from 186 mph to 190 mph or more because 4:10's turn 6th into a pulling gear, unlike the mega overdrive gear it is now. Essentially, 4:10's turn your present 6th into your present 5th gear with a little extra kick at the top end and a whole lot of extra grunt in the lower gears. I have been told that 4:10's are the way to go UNLESS you intend to go forced induction, build a ridiculously stout NA motor, or road race your car.
After my gears, shifter and cat back (added to the present mods), I might forego the head/cam and leave well enough alone. I only want to break into the 11s and I am reasonably certain I will have enough, at that point, to do so.
According to my conversations with Dave at Cartek, 4:10's might actually raise the top speed from 186 mph to 190 mph or more because 4:10's turn 6th into a pulling gear, unlike the mega overdrive gear it is now. Essentially, 4:10's turn your present 6th into your present 5th gear with a little extra kick at the top end and a whole lot of extra grunt in the lower gears. I have been told that 4:10's are the way to go UNLESS you intend to go forced induction, build a ridiculously stout NA motor, or road race your car.
After my gears, shifter and cat back (added to the present mods), I might forego the head/cam and leave well enough alone. I only want to break into the 11s and I am reasonably certain I will have enough, at that point, to do so.
I could only imagine 4.10's and the serious SOTP feel it gives!
Anyway I myself like the thread starter are more intersted in 40-150 pulls rather than the 1/4....
For a while now I have been trying to get a reason to understand better on why more gears or I guess they call less gear (3.55,3.73,3.90,4.10) would even help topend/Rolling Acceleration a little more but I kinda Get it now in a sense from your second paragraph....
Pro
Joined: May 2007
Posts: 720
Likes: 2
From: S.F. Bay Area CA
Use the search feature, there is plenty of discussion threads and information here to help you and answer your first post.
But to answer your last question, at 75mph I am only taching 1900rpm. I have been over 160 with plenty of room left to go at the top.
Here's another thread to look at:
http://forums.corvetteforum.com/show....php?t=1845068
But to answer your last question, at 75mph I am only taching 1900rpm. I have been over 160 with plenty of room left to go at the top.
Here's another thread to look at:
http://forums.corvetteforum.com/show....php?t=1845068
Thread Starter
Pro
Joined: Aug 2007
Posts: 696
Likes: 133
From: Central Jersey
Mathematically, the 4:10's are 20% shorter than 3:42's. If you had the HPR to use 6th gear to redline with 3:42 final drive, top speed is a theoretical 254 mph. With 4:10's, 6th is mathematically limited to 205 mph.
According to my conversations with Dave at Cartek, 4:10's might actually raise the top speed from 186 mph to 190 mph or more because 4:10's turn 6th into a pulling gear, unlike the mega overdrive gear it is now. Essentially, 4:10's turn your present 6th into your present 5th gear with a little extra kick at the top end and a whole lot of extra grunt in the lower gears. I have been told that 4:10's are the way to go UNLESS you intend to go forced induction, build a ridiculously stout NA motor, or road race your car.
According to my conversations with Dave at Cartek, 4:10's might actually raise the top speed from 186 mph to 190 mph or more because 4:10's turn 6th into a pulling gear, unlike the mega overdrive gear it is now. Essentially, 4:10's turn your present 6th into your present 5th gear with a little extra kick at the top end and a whole lot of extra grunt in the lower gears. I have been told that 4:10's are the way to go UNLESS you intend to go forced induction, build a ridiculously stout NA motor, or road race your car.
Why would the 4.10s not be adequate for these applications?
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
If you have FI and gears for road course, you'll have to choose wisely.
Are you a Z51 car? This may have something to do with your gear selection for FI and road courses.
Remember, the Z51 transmission is, on average, 10% shorter in gears 1-3 so the 4:10s will make those gears that much shorter.
Thread Starter
Pro
Joined: Aug 2007
Posts: 696
Likes: 133
From: Central Jersey
Nope, I'm not a Z51 car, though I wish I was.
I am almost definitely looking to go FI with my car and definitely going to either autocross or go on the road course.
Would 3.73s or 3.90s be good for both FI and Road Racing?
I am almost definitely looking to go FI with my car and definitely going to either autocross or go on the road course.
Would 3.73s or 3.90s be good for both FI and Road Racing?
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
Better choices for your future specs and requirements. I suggest that you call Dave Busch at Cartek. He will lead you into the light..........
Tell him Mr. "X", attorney at law, sent you. He should get a laugh out of that.
Tell him Mr. "X", attorney at law, sent you. He should get a laugh out of that.
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
When does it close for the season? I am trying to get there before that happens but work keeps getting in the way. My buddy is going to bring with him either his 460 whp WRX STI or his 800 rwhp TT G35. It should be fun either way.................