01-27-2015, 07:54 AM | #1 |
Drives: 2011 Summit White Camaro SS (LS3) Join Date: Sep 2014
Location: Welland, Ontario Canada
Posts: 542
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Guys with 3.91 gears in a 6spd manual
I would like to know a couple of things before I do this:
1) I understand that the powerband will shift. How does it feel when on the highway and you want to downshift to pass? Do we lose a lot of top end power after the gear install in favor of low end power? 2) Has anybody done a 0-60 run? This is the area i'm trying to improve upon rather than the quarter mile. I understand I should be able to get off the line quicker but will lose top end which is fine with me. But I'm wondering if there is a real improvement in 0-30, 0-60 etc. Any negative feelings with the gears? Is 1st gear still useable? Will I be needing to shift at a really low speed now? Thanks J |
01-27-2015, 08:07 AM | #2 |
Account Suspended
Drives: 2010 zr1 Camaro 2011 vert Join Date: Apr 2013
Location: everywhere
Posts: 1,121
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What is your power?
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01-27-2015, 09:23 AM | #3 |
"Black Ace"
Drives: Supercharged 2010 SS, 2016 Golf R Join Date: Aug 2008
Location: Ft. Lauderdale, FL
Posts: 1,352
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You don't lose any top-end power (or any power, for that matter). You'll just get through your powerband quicker and you'll feel like you have more torque everywhere. I still think it's the best bang-for-your-buck mod out there.
If you're N/A, first gear will be perfectly useable. If you add a PD blower, it gets a bit dicey, but scary fun (I used to have 4.10s, before I grenaded them).
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2010 2SS/RS M6 "Black Ace" - Delivered 6/4/2009
Mods: Forged 416 LS3, Maggie TVS 2300 SC (~11 psi), custom cam (232/247, .630/.630, 118 LSA), 90-lb. injectors, ZL1 fuel pump & ADM controller, Alky Control meth kit, Monster LT1-SC twin-disk clutch, ZL1 drivetrain conversion w/ DSS 1000-HP axles & 1-pc. driveshaft, CAI Inc. intake w/ ADM scoop, XS Power full exhaust (1 7/8" LT headers with 3" off-road pipes), VMAX CNC-ported TB, LSR adjustable sway bars, LPE rear end-links, BMR 1" drop, BMR polyurethane bushings; UMI trailing arms & toe rods. Built & tuned by Kraftworks. 755 rwhp/708 rwtq |
01-27-2015, 10:00 AM | #4 |
Fight Crime, Drive Armed
Drives: '14 2SS Yelo Maro, HD collection Join Date: Jun 2013
Location: NRH, TX
Posts: 985
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Bring back Sunoco 260 to the local station. Some folks STILL drive L-88s and need the good gas.
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01-27-2015, 10:00 AM | #5 | |
Drives: 2000 Camaro SS Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,179
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Quote:
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01-27-2015, 10:57 AM | #6 |
Drives: 2011 Summit White Camaro SS (LS3) Join Date: Sep 2014
Location: Welland, Ontario Canada
Posts: 542
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Sweet. I am normally aspirated with an intake and tune.
But does the zero-60 improve? |
01-27-2015, 06:41 PM | #7 |
Drives: Camaro SS Join Date: Mar 2010
Location: Motorcity Dragway
Posts: 978
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What size drag radials or slicks?
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11.90's w/headers, CAI, custom tune, slicks/skinnys, shifter & 100+ Ethyl.
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01-27-2015, 07:55 PM | #8 |
Drives: 2010 camaro ss Join Date: Jun 2010
Location: Port Arthur, Tx
Posts: 2,383
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0-60 improves if you get traction. Overall I like the 3.91's. On the highway the car feels much lighter and I don't see a reason to downshift. It picks up faster now
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01-27-2015, 08:37 PM | #9 |
Drives: 2011 camaro ss Join Date: Aug 2014
Location: surprise, az
Posts: 204
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How much does it affect the overall top speed?
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01-27-2015, 10:51 PM | #10 |
"Cam Only"
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How much will it help in the 1/4m or 1/2m over the stock 3.45's? I'm cam only
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2013 AGM Camaro 2SS/RS M6 | LSA Blower, 2.5" pulley, 10% lower, FIC1000's, Fore Innovations Twin Pump fuel system w/ Flex Fuel, CMS Custom Grind Cam, Kooks 1 7/8" headers w/ catless off-road pipes, NPP Exhaust, 3.91's, JLT ZL1 Intake, Prospeed Heat Exchanger | Pfadt Suspension, 1LE Sway Bars | DSS 1000hp axles |
Tuned by Ryne @ CMS E85: 734rwhp/636rwtq (mustang dyno) |
01-27-2015, 11:17 PM | #11 |
Drives: 2010 camaro ss Join Date: Jun 2010
Location: Port Arthur, Tx
Posts: 2,383
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Helped me on the 1/4 with a .2 faster and two mph gain from my previous run on a worst 60'. That was my first time out there with the gears and I only done two passes that night. Only downfall I can think off is 4th gear ends at 140mph. I didn't shift into 5th as I thought that was fast enough.
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01-28-2015, 02:47 AM | #12 |
LSX Bumblebee
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5th can do 155 with plenty of room to go
3.91 is great if you like spinning tires when you have a supercharger. lol |
01-28-2015, 05:56 AM | #13 |
Drives: 2010 camaro ss Join Date: Jun 2010
Location: Port Arthur, Tx
Posts: 2,383
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01-28-2015, 11:38 AM | #14 |
In The Circle
Drives: 2010 Camaro 2SSRS IOM M6 Join Date: May 2009
Location: Abbotsford BC Canada
Posts: 11,291
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I have had both 3:91 and 4:10 in my M6 car loved them both. If I had to choose a favorite 4:10 would be the ones I liked best. Turned 11:72 with those gears, Bolt On's with slicks and skinnies.
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