Gear choices
Thread Starter
Melting Slicks
Joined: May 2001
Posts: 2,812
Likes: 4
From: Gig Harbor Wa
Gear choices
Are 4.11's too much for an M6 street car? Car is 1970 convertible with LS1 and T56. This is a weekend/ fair weather cruiser with no track time. Currently stock LS1 with future mods to only be long tubes and ASA cam.
I am considering 3.90 4.11 and 4.33.
What do you guys think and why?
Thanks
I am considering 3.90 4.11 and 4.33.
What do you guys think and why?
Thanks
Burning Brakes
Joined: Jan 2003
Posts: 1,207
Likes: 27
From: Sun Diego CA
If your T56 has the same 6th ratio as the Vette 6 speed, you should have a great combo with 4.11's.
I have 4.10's and run a bit over 2200 RPM's at 80mph if I remember right. 1-5 are really close and get the car moving quickly, but I still get good gas mileage in 6th.
Wish they had 6 speeds when I was a kid. I ran a BB 468 with an M21 and 4.11's. I got around 6 mpg..... yuch.
I have 4.10's and run a bit over 2200 RPM's at 80mph if I remember right. 1-5 are really close and get the car moving quickly, but I still get good gas mileage in 6th.
Wish they had 6 speeds when I was a kid. I ran a BB 468 with an M21 and 4.11's. I got around 6 mpg..... yuch.
Thread Starter
Melting Slicks
Joined: May 2001
Posts: 2,812
Likes: 4
From: Gig Harbor Wa
Yup, ratios are the same as the C5's. Thats why I asked here in the C5 section. With the 4.10's do you find yourself spinning the tires much when you take off or when its wet out?
Burning Brakes
Joined: Jan 2003
Posts: 1,207
Likes: 27
From: Sun Diego CA
It certainly is a bit harder to get a clean launch w/o spinning the tires. It's not that bad though, but if you had big HP, then I could see it as a problem. My measly 330 rwhp do not overpower the tires too bad.
Not sure about wet weather, it's doesn't rain much here.
The big difference for me is that 3, 4, & 5 pulls so much harder now.
It's definately not too much gear, most that have done the swap will say that it should have been the stock ratio.
Not sure about wet weather, it's doesn't rain much here.
The big difference for me is that 3, 4, & 5 pulls so much harder now.
It's definately not too much gear, most that have done the swap will say that it should have been the stock ratio.
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Burning Brakes
Joined: Jan 2003
Posts: 1,207
Likes: 27
From: Sun Diego CA
Originally Posted by 70 LS1
Cool. Looks like I am leaning more towards the 4.11's.
Hows the weather there in San Diego? I am heading down on Tuesday for a month.
Hows the weather there in San Diego? I am heading down on Tuesday for a month.
Le Mans Master
Joined: Jul 2001
Posts: 9,622
Likes: 16
From: absecon nj
Hey jeff,with my 3.70's and a hard launch i spin all the way threw 1stand 2nd gear too.I have to feather it coming off the line then get into .But im still gone to change it to probably 4.10's.
With your 6 speed it might be worse.
With your 6 speed it might be worse.