If you're thinking about getting 4.10's...
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
If you're thinking about getting 4.10's...
Stop thinking about it and GET THEM! It's like a different car now...beastly acceleration, the front end feels like its lifting off the ground! And 1-2 shifts are neck snapping! 
Best mod yet! 
And for those contemplating doing the install themselves...I say go for that too. Dope's write up made the install a breeze! Thanks Dope!
Some pics of the install...
Best mod yet! And for those contemplating doing the install themselves...I say go for that too. Dope's write up made the install a breeze! Thanks Dope!
Some pics of the install...
Le Mans Master
Joined: Dec 2003
Posts: 5,561
Likes: 448
From: Atlanta metro Ga.
Originally Posted by leaftye
I'm sure they're great, and I want them, but I can't give up having the ability to stay in 1st gear for most autocrosses.
J/K! I love my 3.90's as well. Best bank for the buck mod out there.
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Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
BoYD,
What is there to compromise by going to a 4.10?
At 80 mph in 6th gear your Coupe or Convertible is only turning 2.150 rpms. I still get over 28 mph in my modified Z06 with them and the MN6 trans.
Try it, it's wonderful!!!!!!!!!
What is there to compromise by going to a 4.10?
At 80 mph in 6th gear your Coupe or Convertible is only turning 2.150 rpms. I still get over 28 mph in my modified Z06 with them and the MN6 trans.Try it, it's wonderful!!!!!!!!!
Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
BoYD,
Thanks for the note.
I haven't given up anything. I have had a custom 0.563:1 sixth gear installed in my MN6 trans by Liberty Gears. My top speed is over 185 mph.
Good luck with your decision.
.
Thanks for the note.
I haven't given up anything. I have had a custom 0.563:1 sixth gear installed in my MN6 trans by Liberty Gears. My top speed is over 185 mph.
Good luck with your decision.
.
Instructor
Joined: Jan 2003
Posts: 247
Likes: 0
From: El Paso TX
4.10's not best for some
I installed 4.10's and changed to 3.72. If you got alot of torque and hp, first and second gears are totally useless on the street. You need ET Streets for the track and even then 4.10's cause the fifth gear shift problem: An extra shift to a poor pulling gear. Use your hp curve, your rev. limit, and trap speed to calculate the better gear ratio. I, and other forum members, like to finish the quarter at the peak of the hp curve in fourth gear. Most high power C5's (>600 hp) use the stock gear ratio, check the mods of their cars. Nothing wrong with 4.10's if they are a good marriage to your expectations.
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
Originally Posted by Inelpaso
I installed 4.10's and changed to 3.72. If you got alot of torque and hp, first and second gears are totally useless on the street. You need ET Streets for the track and even then 4.10's cause the fifth gear shift problem: An extra shift to a poor pulling gear. Use your hp curve, your rev. limit, and trap speed to calculate the better gear ratio. I, and other forum members, like to finish the quarter at the peak of the hp curve in fourth gear. Most high power C5's (>600 hp) use the stock gear ratio, check the mods of their cars. Nothing wrong with 4.10's if they are a good marriage to your expectations.
I was considering 3.90's but thats prolly to much gear as well. What do you think?? I'm over 700RWHP.
Last edited by Jeff @ TPE; Apr 21, 2005 at 08:50 PM. Reason: grammar
Instructor
Joined: Jan 2003
Posts: 247
Likes: 0
From: El Paso TX
Originally Posted by AMERICAN_HP
Theres NO WAY I could have 4.10's
I was considering 3.90's but thats prolly to much gear as well. What do you think?? I'm over 700RWHP.
I was considering 3.90's but thats prolly to much gear as well. What do you think?? I'm over 700RWHP.
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
Originally Posted by AMERICAN_HP
Theres NO WAY I could have 4.10's
I was considering 3.90's but thats prolly to much gear as well. What do you think?? I'm over 700RWHP.
I was considering 3.90's but thats prolly to much gear as well. What do you think?? I'm over 700RWHP.
About the traction...I'm running 305/35/18 nitto r's on the rear so traction is decent in warmer weather. This is at about 410rwhp/385rwtq.
And for those thinking about doing the install...here is the write-up Dope's Install Guide
Race Director
Joined: Mar 2004
Posts: 12,634
Likes: 15
From: IL, Chicago area.
St. Jude Donor '14-'15-'16
Originally Posted by NassyVette
At 700rwhp you should be good with the stock 3.42's...that is alot of power. I'm running an ARE H/C with full bolt ons and the 4.10's were a perfect match.
About the traction...I'm running 305/35/18 nitto r's on the rear so traction is decent in warmer weather. This is at about 410rwhp/385rwtq.
And for those thinking about doing the install...here is the write-up Dope's Install Guide
About the traction...I'm running 305/35/18 nitto r's on the rear so traction is decent in warmer weather. This is at about 410rwhp/385rwtq.
And for those thinking about doing the install...here is the write-up Dope's Install Guide