[Z06] Question about 02 Z06
Thread Starter
Instructor
Joined: Jan 2008
Posts: 227
Likes: 1
From: Frisco TX
Question about 02 Z06
Just got a Z06 about a week ago and it came with a 342 stock gear in it. The man I got the car from gave me a 390 gear to go with the car Is it worth putting the 390 gear in it ? And will I see a gain out of it?
Former Vendor
Joined: Jan 2008
Posts: 16,312
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From: Surprise Arizona
Drifting
Joined: Oct 2006
Posts: 1,701
Likes: 0
From: Heath Texas
St. Jude Donor '12-'13-'14-'15-'16-'17
Most that swap from the MN12 have significant traction issues. The 390s seems to be the gear that most are happiest with, though. They have a hard time going anywhere (wheel spin) with the 411s.
If it were me, I would drive it for a while with the stock gears and then decide.
Speed
If it were me, I would drive it for a while with the stock gears and then decide.
Speed
Race Director
Joined: Dec 2000
Posts: 17,786
Likes: 5
From: Florida
Most that swap from the MN12 have significant traction issues. The 390s seems to be the gear that most are happiest with, though. They have a hard time going anywhere (wheel spin) with the 411s.
If it were me, I would drive it for a while with the stock gears and then decide.
Speed
If it were me, I would drive it for a while with the stock gears and then decide.
Speed
Definitely drag radial territory.Congrats with the purchase!
-Dean
Pro
Joined: Oct 2007
Posts: 632
Likes: 2
From: Columbus Ohio
I put 4.10s on my LT1 Firebird from 3.42s stock...Basically what it did was made my 1st gear useless, 2nd like 1st which was almost useless before, third like second etc. I was reduced to a five speed- also with less contact area between the ring and pinion I broke the teeth off and went back to the 3.42s...
Unless you do a lot of highway racing I probably would stick with stock, I was actually slower at the track with nitrous and the 4.10s as I had to shift a gear higher before the end. Also wheelspin on these cars is hard enough to manage with stock ratios... if you do go with them you will definitely need a good set of drag radials/slicks and a dte brace to boot.
Unless you do a lot of highway racing I probably would stick with stock, I was actually slower at the track with nitrous and the 4.10s as I had to shift a gear higher before the end. Also wheelspin on these cars is hard enough to manage with stock ratios... if you do go with them you will definitely need a good set of drag radials/slicks and a dte brace to boot.
Burning Brakes
Joined: Sep 2002
Posts: 1,077
Likes: 1
From: Greenville SC
On top of what everyone else said, It is VERY HARD to find someone that REALLY knows what they are doing setting up rear ends.
There are tons of people that *claim* that they know how, and you end up with a rear end that howls and whines like a banshee. Then you have to find and pay a real expert to re-do the whole thing...
I would stay stock just because I went through all this with my Z28 (fourth gen), and it turned out to be a royal and expensive pain in the azz.
MD
There are tons of people that *claim* that they know how, and you end up with a rear end that howls and whines like a banshee. Then you have to find and pay a real expert to re-do the whole thing...
I would stay stock just because I went through all this with my Z28 (fourth gen), and it turned out to be a royal and expensive pain in the azz.
MD
Melting Slicks
Joined: Aug 2006
Posts: 3,123
Likes: 116
From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
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Drifting
Joined: Jan 2005
Posts: 1,724
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From: Oil Country
On top of what everyone else said, It is VERY HARD to find someone that REALLY knows what they are doing setting up rear ends.
There are tons of people that *claim* that they know how, and you end up with a rear end that howls and whines like a banshee. Then you have to find and pay a real expert to re-do the whole thing...
I would stay stock just because I went through all this with my Z28 (fourth gen), and it turned out to be a royal and expensive pain in the azz.
MD
There are tons of people that *claim* that they know how, and you end up with a rear end that howls and whines like a banshee. Then you have to find and pay a real expert to re-do the whole thing...
I would stay stock just because I went through all this with my Z28 (fourth gen), and it turned out to be a royal and expensive pain in the azz.
MD
I went through the exact same thing with my 4th gen WS6
Pro
Joined: Oct 2007
Posts: 632
Likes: 2
From: Columbus Ohio
FWIW-
It is my understanding that the vettes have removable center sections (like the ford 9") so they are a lot easier to setup than f-body 7 5/8" or mustang 8.8" rear ends.
On the f-body noone should pay to have a rear-end installed- you will break more than one so get some practice ;-) The torque arm is right there and you can make a companion flange holding tool out of angle iron that you will hit against the torque arm to hold it while you torque the pinion nut the 250 ft-lbs it requires.
It is my understanding that the vettes have removable center sections (like the ford 9") so they are a lot easier to setup than f-body 7 5/8" or mustang 8.8" rear ends.
On the f-body noone should pay to have a rear-end installed- you will break more than one so get some practice ;-) The torque arm is right there and you can make a companion flange holding tool out of angle iron that you will hit against the torque arm to hold it while you torque the pinion nut the 250 ft-lbs it requires.
