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Thread: 3.73s or 4.10s?
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02-11-2008, 05:58 PM #1
3.73s or 4.10s?
im trying to decide wether or not to get 3.73s or 4.10s. my car is an A4 and a daily driver. im leaning towards 3.73s 4 gas reasons and how much should i pick up in the quarter and which brand should i get?
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02-11-2008, 11:49 PM #2
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09 EclipseGT 75 Chevy 4x4- 2001 Trans-Am 13 F-XT
3.73 gets my vote.
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02-12-2008, 06:07 AM #3
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NBM / Silver- 00 SS / 71 SS Elcamino
3.90's are always an option if you want a little more gear. I think they would be awesome with an auto. I went against the norm and put 4.30's in with my 6 speed.
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02-12-2008, 09:31 PM #4
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09 EclipseGT 75 Chevy 4x4- 2001 Trans-Am 13 F-XT
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02-12-2008, 09:36 PM #5
wondering the same thing ive got an A4 3:73 or 4:10 but i wanna still be able to hit those high highway speeds
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02-12-2008, 09:38 PM #6
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09 EclipseGT 75 Chevy 4x4- 2001 Trans-Am 13 F-XT
Nah, 75 is cruising speed. The high highway speed part is about 95 and up.
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02-13-2008, 07:56 PM #7
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Current best: 10.60/126.8- 1998 Pontiac TA WS6
3.73's. 4.10s may or may not get you better et's. If you can hook with 4.10s and not run out of gear at the end of the track, then 4.10s are better. But I like 3.73's because they're all around a good gear for the street and track. And when you start making big power with your motor later on you might wish you still had 3.73's.
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02-13-2008, 08:01 PM #8
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02-14-2008, 04:37 AM #9
w/ 4.10's, I'm just about redlined (3rd gear) in the 1/8th @ 90mph, 60 mph in 6th at about 1700 rpm, this is w/ and M6 though
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02-14-2008, 04:42 AM #10
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blacker than wesleysnipes- 98' trans am
4l60e for all around drivability and performance like the 3.73 -3.90...4.10+ is usually for the t56s
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02-14-2008, 05:59 PM #11
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2002 Z28 A4 NBM- Sadly now demodded :(
I have 3.73's in my A4 car. Good compromise between driving and racing.
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02-15-2008, 07:39 AM #12
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NBM / Silver- 00 SS / 71 SS Elcamino
2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture
1971 SS ElCamino 402 Big Block 550HP
2006 Silverado 2500HD 496 cubic inches of pure muscle
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02-15-2008, 07:46 AM #13
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02-15-2008, 08:01 AM #14
Well since you said it's a daily driver there would be only one Smart choice.
3.73 are it!
4.10's would be fine if you had a weekend warrior.
On the brand ? Just get a quality AMERICAN gear/ There are MANY out there now including Sumit ang Jegs that are a good price.
And for the others that are hi jacking your thread...... You need to know your tire dia..... http://www.angelfire.com/fl/procrastination/rear.html
http://www.csgnetwork.com/multirpmcalc.html
http://www.5speedtransmissions.com/calculators.html
Those are the 3 different calculators I use.Don't be afraid of the bottle!!! Be afraid of your tune!!!
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02-15-2008, 09:00 AM #15
4.10's aren't bad with an auto. I have them in mine. 85 mph is around 3K RPM's. First gear is useless on the street especially with a 3600 stall and street tires. Come to think about it so is second. Haven't run it at the track yet as the motor let go 3 days before I was going to take it. I'd do it again in a heartbeat if I had to do it all over again. I only drove it on the weekends but that was more because of the Headers/true duals/flowmaster 1 chambers dumped at the axle more than anything else. Cops hated it, so did anyone's house I passed by.
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02-15-2008, 09:16 AM #16
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02-20-2008, 06:29 AM #17
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Sunset Orange Metalic- 2002 Firehawk
3.73 here - Greatest feeling when accelerating.
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02-22-2008, 01:31 PM #18
I have Motive 3.90's in my M6 and love them, although I will definitely go with something higher when I swap to a 9" rear.
Since you have an A4 daily driver, the 3.73 should be a great fit for you. You'll definitely notice a difference when playing around on the highway. Match that with a good stall and you should post nicely improved track times.2002 Camaro SS M6, 2.5 PRC 5.3L heads, TFS 228/230 cam, FAST 92, bolt ons + a 10 lb bottle in the back.
1989 Corvette L98, A4, Full bolt ons, etc.
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02-22-2008, 03:18 PM #19
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02-25-2008, 05:01 AM #20
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