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03-03-2009, 03:11 AM
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#1
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Join Date: Aug 2008
Location: Manahawkin
Posts: 83
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Opinion on gears
i have a 99 z28 a4 looking to make it one hell of a quater mile car. got a set of 4.10s in my garage to put in it stock stall on a 27 inch slick. cars got bolt ons and a 100 hit anyone have experience with theese gears?
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99 Z28 Boltons 2 stages 88 Camaro 350 TBI swap
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03-03-2009, 06:28 AM
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#2
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NJFBOA Supporting Sponsor
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Location: HULMEVILLE, PA
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If you are planning on using slicks my advise would be to sell the 4.10 gear set and buy a 12 bolt or other type of aftermarket rear. The 7.5" ten bolt will not last long if you are going to be racing the car. Also the stock torque converter is going to really hurt your et. and could possibly break if you are going to be spraying the car..
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JSSPEEDANDCUSTOM.COM
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03-03-2009, 01:56 PM
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#3
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Join Date: Aug 2008
Location: Manahawkin
Posts: 83
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Quote:
Originally Posted by JSPERFORMANCE
If you are planning on using slicks my advise would be to sell the 4.10 gear set and buy a 12 bolt or other type of aftermarket rear. The 7.5" ten bolt will not last long if you are going to be racing the car. Also the stock torque converter is going to really hurt your et. and could possibly break if you are going to be spraying the car..
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yeah i know but what about the 4.10's even if im on a 27 slick or drag radial will this work
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99 Z28 Boltons 2 stages 88 Camaro 350 TBI swap
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03-03-2009, 03:45 PM
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#4
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
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What exactly do you mean by "will this work"?
Sure you can install the gears and run a 27" slick if you want....
- Justin
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2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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03-03-2009, 04:37 PM
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#5
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NJFBOA Co-Founder
Join Date: Jul 2004
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Will it work, yes. Will it last, no.
The case on a 10bolt is weak and plenty of people have snapped them with stock gears on street tires. Some have gotten lucky and had them last a while, but lucky only lasts so long.
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03-03-2009, 07:45 PM
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#6
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11 Second Club / I <3 LT1s
Join Date: May 2008
Location: Troy, Mi
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Quote:
Originally Posted by Tru2Chevy
What exactly do you mean by "will this work"?
Sure you can install the gears and run a 27" slick if you want....
- Justin
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I think he wants to know is if he'll have enough gear to go through the traps without hitting the 6200rpm redline or going into OD.
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Vinnie -
00 SS A4- LQ9/LS3/Stalled/3.42s 1.48/11.10/121 mph<-6spd swap in progress.
13 Silverado Z71- Sold 11/16
99 Z28 M6- -H/C/9in - sold 1/13
99 Silverado Z71- The DD - Sold 7/13
03 CBR 600RR - Sold 8/13
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03-03-2009, 07:50 PM
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#7
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NJFBOA Supporting Sponsor
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We normally do not run 4.10's in auto street/strip cars.
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03-03-2009, 08:09 PM
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#8
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Join Date: Feb 2008
Location: Linden NJ
Posts: 587
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for auto i wouldnt go much higher than 3.73's
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03-03-2009, 08:28 PM
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#9
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Join Date: Aug 2008
Location: Manahawkin
Posts: 83
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but the question is not if it will break....its if the gears will let me get to the quater mile before red line....
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99 Z28 Boltons 2 stages 88 Camaro 350 TBI swap
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03-03-2009, 08:32 PM
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#10
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,941
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Find a gear/tire calculator then?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-03-2009, 08:51 PM
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#11
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Co-Founder / Site Admin
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03-03-2009, 08:54 PM
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#12
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Join Date: Aug 2008
Location: Manahawkin
Posts: 83
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i already did that so in theory thatll work...but does anyone know if itll actually work....has anyone done it yet i know people have done it in mustangs but does it work in a fbody
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99 Z28 Boltons 2 stages 88 Camaro 350 TBI swap
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03-03-2009, 09:24 PM
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#13
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
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Short answer, a stock car, No.
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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03-03-2009, 09:34 PM
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#14
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Banned
Join Date: Apr 2006
Location: Port Reading
Posts: 252
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Quote:
Originally Posted by NJ Torque
Short answer, a stock car, No.
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Any explination behind that answer....
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03-03-2009, 09:43 PM
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#15
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
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Yes the 4.10s will work, but not the best with your setup. I met someone with 4.10s in an auto, and he said you get to 80 mph real fast, but then it starts to struggle. You will end up breaking too much **** running a 100 shot through the 4.10s in an auto. with your stock rear/stall consider 3.73s max. Since you seem to be looking for more speed than reliability, I think you should ditch the idea of gears and pickup a torque converter.
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03-03-2009, 10:05 PM
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#16
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Banned
Join Date: Apr 2006
Location: Port Reading
Posts: 252
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Quote:
Originally Posted by KirkEvil
Yes the 4.10s will work, but not the best with your setup. I met someone with 4.10s in an auto, and he said you get to 80 mph real fast, but then it starts to struggle. You will end up breaking too much **** running a 100 shot through the 4.10s in an auto. with your stock rear/stall consider 3.73s max. Since you seem to be looking for more speed than reliability, I think you should ditch the idea of gears and pickup a torque converter.
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The car will be getting a stall soon enough....With the setup the car will be running it should have more than enough MPH to get through the traps before redline. If all else fails we can always go with a 28"....
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03-04-2009, 12:40 PM
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#17
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NJFBOA Co-Founder
Join Date: Jul 2004
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If the car is trapping at 120, you will be fine with 4.10 gears.
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03-13-2009, 01:28 AM
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#18
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Join Date: Feb 2009
Location: Mine Hill, NJ
Posts: 67
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his car would be more likely to trap about as fast as the tow truck can pull him down the track...your rear is gunna be in more pieces than you can count...i blew 4.10 and the stock 3.42 with street tires...believe me 3.73 is decently safe...but a 12 bolt is the way to go.
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