BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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 what will gears do for my 1/4 mile time?

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96slowss

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Posts : 855
Join date : 2010-06-09
Age : 28
Location : Halifax,MA

PostSubject: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 1:55 pm

i ran my ss basically stock and best run was 15.1 before a tuneup. iam ordering 4.10s a detroit true track and long tubes for this winters project. what kind of time will i shave off with 410s???
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96Brougham



Posts : 819
Join date : 2009-02-02
Age : 29
Location : Easton MA

PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 2:04 pm

Should get you into the 14s, but you highway MPG's will go to shit. Talk to crovo, I think he's got a set of 410s he wants to sell..
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Pooge

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Join date : 2009-03-24

PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 2:05 pm

96Brougham wrote:
Should get you into the 14s, but you highway MPG's will go to shit. Talk to crovo, I think he's got a set of 410s he wants to sell..

Yup with 4.10s and True Trak I had a best of 16MPG highway, but that car launched from the stop light, loved it, well worth it. Never ran it down the track though.

Doug

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1996 Impala SS - 45K original miles - 5.3 LS swap - Brand new Bilsteins...WHAT A DIFFERENCE!
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96slowss

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PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 2:09 pm

iam hoping 2 get a low 14 and for it 2 have 0 traction from a stop Laughing ill have 2 check with crovo on that..
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Pooge

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PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 2:23 pm

96slowss wrote:
iam hoping 2 get a low 14 and for it 2 have 0 traction from a stop Laughing ill have 2 check with crovo on that..

I had the True Trak and it hooks like a mother, you should not be able to spin the tires more than a chirp...that's the point of an LSD...

Doug

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1996 Impala SS - 45K original miles - 5.3 LS swap - Brand new Bilsteins...WHAT A DIFFERENCE!
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GasTT

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Location : Treasure Coast, FL

PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 3:06 pm

L imited S lip D ifferential

Limited unless you have a shit load of power.
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mean ss

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Join date : 2009-02-25
Age : 59
Location : Nashua NH.

PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 7:13 pm

you should change the valve springs too
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Waldo617

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Location : Milton

PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 11:07 pm

my chevy has the trailering package i never took into consideration what the gear ratio is...yet lately i have been thinking about swapping in sumthin else for a better launch off the line...
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GasTT

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PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 11:10 pm

Probably 2.93 posi rear.
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Waldo617

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PostSubject: Re: what will gears do for my 1/4 mile time?   Wed Jul 14, 2010 11:16 pm

i do have posi but i definitely need stronger gears...i wonder if i can keep the posi trac thats in it and go with better gears? does anyone kno what gears came in the 9C1?
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V8Killer

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Location : Southern, NH

PostSubject: Re: what will gears do for my 1/4 mile time?   Thu Jul 15, 2010 5:53 pm

Waldo617 wrote:
i do have posi but i definitely need stronger gears...i wonder if i can keep the posi trac thats in it and go with better gears? does anyone kno what gears came in the 9C1?

Probably 3.08's......booo
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toomanytoyz
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Age : 40
Location : East Hampstead, NH USA

PostSubject: Re: what will gears do for my 1/4 mile time?   Thu Jul 15, 2010 8:29 pm

Yeah, 4.10's are FUN in a 4L60 car! Smile

Make sure you have a good set of rear tires or you will have BIG traction problems on the street. I loved that. Wink

I do have a set of 4.10's that I am not using, but I think they are already spoken for. If not, I will let you know.

And I got between 15-17 mixed MPG with the 4L60/4.10's/26.5" tall tire. I only lost about 1.5mpg or so. WELL WORTH IT!

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Bill "The Verb" Crovo - Resident Car Slut & Unicorn Hunter

A Toasted Marshmallow, A Long German, A Lame Suburban and expensive dreams...
Missing all my previous B's, D's and V... Sad
American Ricer
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"Ooooh! Look! Something shiny!"
NO MORE UNICORNS!!!!!

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96slowss

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PostSubject: Re: what will gears do for my 1/4 mile time?   Sun Jul 18, 2010 4:31 pm

thanks for the replys. crovo, let me know if u didnt sell those gears..
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JRS9C1

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Location : Bethel ME

PostSubject: Re: what will gears do for my 1/4 mile time?   Sun Jul 18, 2010 4:51 pm

I had 4.11s in the Roady, they were pretty fun at first. After a while I got annoyed at the RPMs around 55-60 MPH. I also felt that the first gear was way too short with the 4L60E. I barely had enough time to feel the pull of first gear, then it's the horrid 2nd gear drop that we all experience with the 4L60Es (Unless you buy a $1000 planetary) Doing it again I would not go over the tried and true 3.73s. Gas mileage was around 17 MPG, not bad enough to annoy me at the pump thankfully.

But if you're excited to get them installed, then more power to you. Cool
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toomanytoyz
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Location : East Hampstead, NH USA

PostSubject: Re: what will gears do for my 1/4 mile time?   Sun Jul 18, 2010 5:06 pm

Jr, you don't even exist. No one has seen you. Wink

















lol!

_________________
Bill "The Verb" Crovo - Resident Car Slut & Unicorn Hunter

A Toasted Marshmallow, A Long German, A Lame Suburban and expensive dreams...
Missing all my previous B's, D's and V... Sad
American Ricer
www.badassofne.net
"Ooooh! Look! Something shiny!"
NO MORE UNICORNS!!!!!

LOWER IT!!! Wink
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http://impalass.uniquekind.net/
GasTT

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Posts : 2675
Join date : 2009-01-19
Age : 29
Location : Treasure Coast, FL

PostSubject: Re: what will gears do for my 1/4 mile time?   Sun Jul 18, 2010 5:21 pm

He's just an internet personality.
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JRS9C1

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PostSubject: Re: what will gears do for my 1/4 mile time?   Sun Jul 18, 2010 6:36 pm

Maybe I am What a Face
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Tomz9C1

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Age : 54
Location : Rumford, Maine

PostSubject: Re: what will gears do for my 1/4 mile time?   Sun Jul 18, 2010 7:44 pm

toomanytoyz wrote:
Jr, you don't even exist. No one has seen you. Wink
I saw him comin out of his mama, does that count?

















lol!
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