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Louisiana Z/Import cookout April 29th *Lakefront*

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Old 02-11-2008, 06:29 PM
  #25401  
soleil
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Originally Posted by DustinZ33
yes
i'm here, just been quiet
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Old 02-11-2008, 06:38 PM
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I thought 4.08's were better for drag, where as 3.9's were better for street. Someone, please enlighten me.
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Old 02-11-2008, 06:40 PM
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lol well depends on how you look at it, the 4.08 should be great for drifting also, a lot easier to spin the tires over when cornering. but yes drag also.
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Old 02-11-2008, 06:41 PM
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Originally Posted by blasian
I can't imagine it being much of a difference when comparing the 3.9 to 4.08
lol your right but, but going from the 3.5 to a 4.08 with a lightweight flywheel should me a very nice differnce.

Last edited by kramykram; 02-11-2008 at 06:43 PM.
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Old 02-11-2008, 06:42 PM
  #25405  
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can't really say that. just depends on how high of a gear you want. the higher the gear, the quicker and shorter the gear. theoretically, the higher gear will give you more torque
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Old 02-11-2008, 06:45 PM
  #25406  
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check this out Shawn

https://my350z.com/forum/engine-and-drivetrain/301451-4-083-gears-final-drive-installed.html
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Old 02-11-2008, 06:45 PM
  #25407  
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Originally Posted by DustinZ33
can't really say that. just depends on how high of a gear you want. the higher the gear, the quicker and shorter the gear. theoretically, the higher gear will give you more torque
to me seems like it would be better imo, im to lazy to read up on it.
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Old 02-11-2008, 06:48 PM
  #25408  
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I was refering to the statement of which one was better for street and drag. Depends on what you want. I think 4.08 would be better for anything except for a FI car.
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Old 02-11-2008, 06:53 PM
  #25409  
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Originally Posted by DustinZ33
Thanks. It seems like you lose some top end though. I know you won't be doing 188mph, but it seems that it's better in the lower gears. I am looking to get gears as well, and I just want to make sure I get the right ones. I do have an aftermarket flywheel as well.
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Old 02-11-2008, 06:53 PM
  #25410  
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Originally Posted by DustinZ33
I was refering to the statement of which one was better for street and drag. Depends on what you want. I think 4.08 would be better for anything except for a FI car.
And my car is turbo'd
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Old 02-11-2008, 07:00 PM
  #25411  
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Correct about losing top end. It will shorten you gears meaning your top speed will drop but your acceleration will rise.

Just to give you a comparison.

Bradley and I raced from a roll in 3rd gear. I was at 3000 rpms. Don't know what Bradley was at but we were even as far as position of the car. He honked 3 times and we went. He jumped about a car ahead of me by the end of 3rd. He actually switched into 4th before I was finished with 3rd gear. He has 3.9s and I have stock gears.
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Old 02-11-2008, 07:02 PM
  #25412  
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Originally Posted by DustinZ33
Correct about losing top end. It will shorten you gears meaning your top speed will drop but your acceleration will rise.

Just to give you a comparison.

Bradley and I raced from a roll in 3rd gear. I was at 3000 rpms. Don't know what Bradley was at but we were even as far as position of the car. He honked 3 times and we went. He jumped about a car ahead of me by the end of 3rd. He actually switched into 4th before I was finished with 3rd gear. He has 3.9s and I have stock gears.
Which gives him harder pull. What is the best setup with mine being fi?
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Old 02-11-2008, 07:05 PM
  #25413  
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Originally Posted by DustinZ33
Correct about losing top end. It will shorten you gears meaning your top speed will drop but your acceleration will rise.

Just to give you a comparison.

Bradley and I raced from a roll in 3rd gear. I was at 3000 rpms. Don't know what Bradley was at but we were even as far as position of the car. He honked 3 times and we went. He jumped about a car ahead of me by the end of 3rd. He actually switched into 4th before I was finished with 3rd gear. He has 3.9s and I have stock gears.
I think I got 1.5 cars on Bradley from a 60 roll. He did have Nikki in the car
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Old 02-11-2008, 07:05 PM
  #25414  
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stock gears. If you go with the 3.9s or 4.08s, you will have a hard time with traction. First gear will be virtually useless. Most people with FI stick with the stock gears or go with the automatic final drive 3.3s.
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Old 02-11-2008, 07:06 PM
  #25415  
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Originally Posted by blasian
I think I got 1.5 cars on Bradley from a 60 roll. He did have Nikki in the car
I was 3000 dude. You don't really have much get up and go at 3000 rpms. 60 mph in 3rd is a different story.
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Old 02-11-2008, 07:09 PM
  #25416  
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Originally Posted by DustinZ33
I was 3000 dude. You don't really have much get up and go at 3000 rpms. 60 mph in 3rd is a different story.
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Old 02-11-2008, 07:09 PM
  #25417  
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i took ol Bradley that day the pigs came out in wagerville.. walked him by a few cars i think.. from a dig.. cause i have that "freaky old *** car "..
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Old 02-11-2008, 07:10 PM
  #25418  
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Originally Posted by DustinZ33
stock gears. If you go with the 3.9s or 4.08s, you will have a hard time with traction. First gear will be virtually useless. Most people with FI stick with the stock gears or go with the automatic final drive 3.3s.
Automatic being the transmission?
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Old 02-11-2008, 07:11 PM
  #25419  
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Originally Posted by sumfknguy
i took ol Bradley that day the pigs came out in wagerville.. walked him by a few cars i think.. from a dig.. cause i have that "freaky old *** car "..
lol u beat teh 07!
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Old 02-11-2008, 07:11 PM
  #25420  
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Yes sir. The automatic Zs have 3.3 gears in the rear end. 6 speeds have 3.5
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