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How fast are you going with a STOCK REAR???

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Old 08-02-2007, 01:09 PM
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Vader 87
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Default How fast are you going with a STOCK REAR???

How fast are you going with a stock rear and an A4 Automatic tranny???

Last edited by Vader 87; 08-02-2007 at 01:14 PM.
Old 08-02-2007, 06:02 PM
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65GGvert
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Depends on the speed limit, my mood, what gear I'm in and lots of other variables. There are two stock rear ends in an A4. 3:15 and 2:73
If you're asking which rear end you have based on speed, put it in 3rd and drive at a steady 75 mph. Divide your rpm's by 1000 and that's your rear end ratio. (3150 rpm's=3:15's). If your asking top speed, I wouldn't know.
Old 08-03-2007, 09:32 AM
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Vader 87
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Originally Posted by 65GGvert
Depends on the speed limit, my mood, what gear I'm in and lots of other variables. There are two stock rear ends in an A4. 3:15 and 2:73
If you're asking which rear end you have based on speed, put it in 3rd and drive at a steady 75 mph. Divide your rpm's by 1000 and that's your rear end ratio. (3150 rpm's=3:15's). If your asking top speed, I wouldn't know.
Actually i meant track times
Old 08-03-2007, 11:10 AM
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David426
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Depends on what type of modifications are done to the engine... Stock rear end could be a 3:15 or 2.73.. Horsepower will determine how fast the car is on a stock rear end
Old 08-03-2007, 02:46 PM
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Vader 87
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Originally Posted by David426
Depends on what type of modifications are done to the engine... Stock rear end could be a 3:15 or 2.73.. Horsepower will determine how fast the car is on a stock rear end
Ok, let me rephrase the question. What I mean is, how fast are you running down the 1/4 mile or 1/8 mile track with a stock rear that has somehow managed to stay together. I dont give a crap what kind of mods you have, I just want to know who has a rear that is staying together under serious horsepower applications. Serious meaning 400+ at least.
Old 08-03-2007, 10:29 PM
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Still has two stock rear ends, 2:73 and stock 3:15. I don't track mine, so I'm dropping out of the conversation.
Old 08-03-2007, 11:06 PM
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LOL.
Old 08-03-2007, 11:18 PM
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quick777
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i'm at 122.42mph in the heat with a small 100hp shot of nitrous stock motor A4 trans, 273 gears
Old 08-03-2007, 11:44 PM
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naturalgas
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11.90 spinning and 97deg. at track
Old 08-04-2007, 12:07 AM
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rayb_satx
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13.83 completely stock with 2.73s in south texas heat
Old 08-04-2007, 04:03 PM
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See sig.

2800 stall and factory parts, 3.42 gears.

Don't let it wheel hop, will kill the rearend.

Jeff
Old 08-04-2007, 04:05 PM
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Vader 87
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Originally Posted by G-lock
See sig.

2800 stall and factory parts, 3.42 gears.

Don't let it wheel hop, will kill the rearend.

Jeff
How do you cure wheel hop?
Old 08-04-2007, 04:11 PM
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ZeroHer0
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Originally Posted by Vader 87
How do you cure wheel hop?
tires that flex/grip better and suspensions mods
Old 08-04-2007, 05:23 PM
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I bet it would live for a little while with slicks and about 400-430rwhp, but after that you'd be pushing it. Luckily, you have the A4, so its less of a strain to the rear than it is in the M6. I bet it would take less than that to break a stock rear with an M6. This is assuming you are taking it to the track each weekend.

I would say if you change the fluid more often than normal and have the above you should be ok. Now, axle seals might not last a long time but they aren't expensive to replace, (if you do the work yourself).

And for the record, I knew exactly what you were talking about in the initial post
Old 08-04-2007, 05:28 PM
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Old 08-04-2007, 08:30 PM
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Vader 87
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Originally Posted by VetteFTW
I bet it would live for a little while with slicks and about 400-430rwhp, but after that you'd be pushing it. Luckily, you have the A4, so its less of a strain to the rear than it is in the M6. I bet it would take less than that to break a stock rear with an M6. This is assuming you are taking it to the track each weekend.



I would say if you change the fluid more often than normal and have the above you should be ok. Now, axle seals might not last a long time but they aren't expensive to replace, (if you do the work yourself).

And for the record, I knew exactly what you were talking about in the initial post

LOL, guess i got a little frustrated
Old 08-04-2007, 08:52 PM
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tblu92
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390 RWHP 3.15 's A4 drag radials 12.49 best ET 113 MPH--- no spinning with the DR's--I've seen '07 C6's snap a shaft with wheel hop and a 6 speed--an A4 is not as violent at the start so I isn't as likely to break
Old 08-04-2007, 10:41 PM
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if your plainning to track the car put in harded shafts to be on the safe side a4 is alot easier on drivetrain
Old 08-05-2007, 04:03 PM
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phils C5 vette
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55 MPH

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