Best gear with a Yank 3600 3.23 or 3.42?
09-05-2011, 11:28 PM
#22
The only thing they are doing is taking the 3rd gear/90 mph lag out as for performance. They will also tighten the converter up. If you have a 3600 it will feel more like a 3200-3400 etc..
09-06-2011, 11:36 AM
#23
exactly why I said 3.73's lol. They will actually help for drivability and gas mileage around town will increase with a slight decrease on hwy. Im not sure why anybody would recomend anything else. If he already had 3.42's then yes it would not be worth the swap.
09-06-2011, 02:23 PM
#26
If I had 323s stock, no way I would switch.
Why 342s? Cheaper than 373s even buying a whole rear end, then you have an extra rear. Quiet. Not as big chance breaking. Virtually same performance gain, as well as tightening up the converter.
If you have 323s, if you want to notice the difference..390s, otherwise stay with 323s.
Why 342s? Cheaper than 373s even buying a whole rear end, then you have an extra rear. Quiet. Not as big chance breaking. Virtually same performance gain, as well as tightening up the converter.
If you have 323s, if you want to notice the difference..390s, otherwise stay with 323s.
09-06-2011, 03:44 PM
#27
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Dont worry about MPH. As long as your getting there faster thats all that matters.
Also, i would go big. Im stuck on 2.73s with the same set up and I'm probally not changing it until the stock rear goes (85k). I would love to do 3.73 but with it being a DD around town wouldn't be good on gas mileage.
Also, i would go big. Im stuck on 2.73s with the same set up and I'm probally not changing it until the stock rear goes (85k). I would love to do 3.73 but with it being a DD around town wouldn't be good on gas mileage.
It will pull harder in every gear. 3.73s are a great SOTP mod.
09-06-2011, 05:32 PM
#28
In general the 3.73 seems to be the most popular gear in a4's for a combination of performance, mileage,and driveability for a loose stall. If you want a all out performance gear, then go 3.90, but you will be close to 3k rpm at 70 with a 26" tire. You can do 3.23 or 3.42, but then a stall might feel a little looser down low. You always give at one end to gain at another, just have to find the median, which is normally the 3.73 in most cases.
09-06-2011, 05:40 PM
#29
09-07-2011, 10:33 PM
#33
Just to back up what everybody's saying:
- I saw no change in mpg around town going from 2.73 to 3.42.
- The lower gear ratios really help tighten up loose converters in town, significantly improving driveability.
- Finding a good condition 3.23 or 3.42 used rear is a great way to go for the reasons already stated.
- I saw no change in mpg around town going from 2.73 to 3.42.
- The lower gear ratios really help tighten up loose converters in town, significantly improving driveability.
- Finding a good condition 3.23 or 3.42 used rear is a great way to go for the reasons already stated.
10-13-2011, 10:23 AM
#36
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and go up in gear ratio, and then put the thing on a dyno or play
with high speed. That's how people break tailhousings. If you want
steel then you want something that's stiffer then stock and
dead-nuts balanced so it doesn't whip at the way-higher-than-
stock shaft RPMs that a speed-limited 2.73 car was never meant
to see.
