410's
Thread Starter
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
410's
These gears should have been installed in all 6spd cars at the factory.
I have roughly 405 410 hp at the crank on a LT4 what a great performance enhancement.
I was starting to get the itch for some more HP but my motor runs perfect and strong for what it is. I couldn't justify tearing it apart. If any one is in the same boat as me I recommend doing it.
Racer
Joined: Jul 2005
Posts: 387
Likes: 3
From: Indian Trail, NC
i was looking to make a straight line car, and i can't shift that well. i can shift well enough to get by, but not at a drag strip...
Last edited by farscape1a; Jun 15, 2009 at 04:24 PM.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
I personally wouldn't run 4.10's in a street driven A4 LT1. I would go 3.73 if it was a weekend car, or 3.54 if it was a DD.
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Melting Slicks
Joined: Mar 2008
Posts: 3,022
Likes: 3
From: Chandler Arizona
i wanted to go with 3.90's or 4.10's but i am a little reluctant due to traction. i will be pushing for "high horsepower" number eventually with my current supercharger, and I think the short final drive will render the power useless.
Racer
Joined: Feb 2006
Posts: 460
Likes: 0
From: MN
These gears should have been installed in all 6spd cars at the factory.
I have roughly 405 410 hp at the crank on a LT4 what a great performance enhancement.
I was starting to get the itch for some more HP but my motor runs perfect and strong for what it is. I couldn't justify tearing it apart. If any one is in the same boat as me I recommend doing it.
You finally did it!
Now get out and drive it!
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
I like them in a automatic. The thing is, you want to calculate what you will be crossing the finish line at, and keep your gear slightly under that.edit to say, if you take a 4.10 gear, multiply by .70 for overdrive, it equals 2.87 ratio. That is a lot better then alot of cars came with before overdrive transmissions came out, for a final drive ratio.
Last edited by 93 ragtop; Jun 15, 2009 at 06:49 PM.
Thread Starter
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
This should keep me satisfied for a bit 
I hope
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
When my car was a street/strip car, I ran 3.73s and was very happy with them. Now for a full time trailered bracket car, I run 4.30s (with a 28" tire). I am running a 4l60e
Last edited by 383vett; Jun 15, 2009 at 07:14 PM.
Advanced
Joined: Feb 2004
Posts: 87
Likes: 0
From: albrightsville pa
These gears should have been installed in all 6spd cars at the factory.
I have roughly 405 410 hp at the crank on a LT4 what a great performance enhancement.
I was starting to get the itch for some more HP but my motor runs perfect and strong for what it is. I couldn't justify tearing it apart. If any one is in the same boat as me I recommend doing it.
How much do you love that rolling punch in 1st or 2nd gear
Thread Starter
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
How is your motor thing coming along are you making any mods wile its apart.
Thread Starter
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
Melting Slicks
Joined: May 2004
Posts: 2,856
Likes: 187
From: Earth
I just got a complete rearend from www.newmancarcreations.com with 3.73's Can't wait to get them in!
Safety Car
Joined: May 2007
Posts: 3,651
Likes: 10
From: Apple Valley MN
Thanks for the info! I expect to get my engine back any day now - no major mods, just a Hotcam and tuned PCM. I'm itchin'!!
