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A4 Gears and SC

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Old May 4, 2007 | 05:46 PM
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Default A4 Gears and TC

OK. I've been infected with the bug, and want to get gears and a TC for my 03 A4 coupe.I'm pretty much settled on 3.42's, and really can't see going to anything else. What kind are best? Should I get a used C5 6spd or a ZO6 pumpkin which is 3.42 I believe( they don't seem to be that much cheaper used with shipping costs, and you don't know what you're getting), or buy a new one? If new, are DTE best, or are any others recommended?
TC kinds? I've seen alot of people say to go with 3000, or 3300 for this set up.They go from 2800 to 3500? What is the difference in drivability in these different TC's.Do the higher ones shift harder? I am NOT A RACER, I just want something with some good power when I want it, but I DEFINITELY DO NOT WANT TO SACRIFICE DRIVABILTY, and add higher noise levels when cruising.
All help and input will be greatly appreciated, cause I only want to do this once, and right.

Last edited by Ralphyboy; May 5, 2007 at 06:06 AM. Reason: wrong terms
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Old May 4, 2007 | 06:34 PM
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I have Andy's P1 kit w/ the C5 3.42 which I bought from Corvette Garage in Tx via internet. I just had my tranny upgraded at RPM transmissions and I asked if it made a difference in buying a z06 pumpkin vs the C5. They said it really didn't matter, so that might help u out. My car is still a DD and no sacrifice of drivability for me.
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Old May 4, 2007 | 09:13 PM
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You might want to edit your post to change "SC" into "TC" for TorqueConverter. Just a little confusing.

I'm also going with 3.42 and a higher stall. Stock is somewhere around 1600-1800. I'm going to something like 2400-2600 because I also plan on going Forced Induction by adding a SC (that's SuperCharger ) If you plan on adding lots of power later, don't go too high on the stall and gears, otherwise it will sacrifice drivability-every time you step on the gas you'll be tearing the tires to shreds.

If you don't plan on heavily modding, go with somewhere around 3000.

Don't know how handy you are with the wrenches. I'm very handy, know my way around an engine, and wouln't do this by myself. Since your in NJ, there are a lot of places to do the swap that are really cheap. ECS and Cartek come to mind. For the cost of buying a new Z06 3.42 carrier, they only add like 200 bucks for the install and can do it in a few hours while you wait. 200 is worth more to me than my time to do that install. But if you do decide to do it, get CajunDudes install instructions.
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Old May 4, 2007 | 11:58 PM
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Originally Posted by Ralphyboy
OK. I've been infected with the bug, and want to get gears and a SC for my 03 A4 coupe.I'm pretty much settled on 3.42's, and really can't see going to anything else. What kind are best? Should I get a used C5 6spd or a ZO6 pumpkin which is 3.42 I believe( they don't seem to be that much cheaper used with shipping costs, and you don't know what you're getting), or buy a new one? If new, are DTE best, or are any others recommended?
SC kinds? I've seen alot of people say to go with 3000, or 3300 for this set up.They go from 2800 to 3500? What is the difference in drivability in these different SC's.Do the higher ones shift harder? I am NOT A RACER, I just want something with some good power when I want it, but I DEFINITELY DO NOT WANT TO SACRIFICE DRIVABILTY, and add higher noise levels when cruising.
All help and input will be greatly appreciated, cause I only want to do this once, and right.
3.42 gears and a 3000 stall is about the point for most on what they consider a perfect balance. Driveability is still great and the gains are very pronounced.

We are very close to you. Shoot me a PM if you have any questions or if you just want to stop on by. We'll show you around the shop.

Max
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Old May 5, 2007 | 08:58 AM
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I should add that at RPM I just had a level 5 A4 installed w/ a 2800 Vigilante converter. Absolutely love it and can't wait to test this setup at the dragstrip w/ my drag radials in a couple weeks.
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Old May 5, 2007 | 05:32 PM
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I have a setup similar to what you are talking about, 3.42 gears and a Yank SS3600. My A4 coupe is my DD and I definitely wanted a comfortable drive. I did the gears first and the TC about 6 months later, which i don't recommend I had to do a lot of work twice. When I did the gears, driveability was fine, really like stock with more get up and go off the line. I did ALOT of reading before I chose the 3600 stall TC, like you I did not want to sacrifice any driveability but I wanted to be able to tell a difference in power. The TC was a more noticeable change than the gears, in a good way. The only difference in driveability is that you will run higher RPM's below 40 mph, then the TC will lockup and it will be exactly like stock. However, a hard start from a stand still and the back tires will definitely break loose. Something to think about, with 3.42 gears you will need a tune or you will through codes and with a high stall TC you will need a tranny cooler. I am very happy with 3.42 gears and a 3600 TC, if i had it to do over I would not do anything different.

good luck
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Old May 6, 2007 | 01:03 PM
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Love my 3.73s and Vig. 3200 t/c. I don't race I just wanted more umph from the get go. I got that and then some Long hi-way trips no problem I lost some gas mileage but I still get better than my wifes 6 cyl. suv Its a whole lot more fun to drive
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Old May 6, 2007 | 07:58 PM
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I originally went with the 3.42 gears and a 2800 TC on a H/C modified C5 - good combination! When I had the stroker motor installed I kept the gears but went to a 3200 stall for the bigger cam motor. So, you might figure out where your going with your C5 and just do the upgrade once.
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Old May 6, 2007 | 10:39 PM
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Originally Posted by jgorss
I have a setup similar to what you are talking about, 3.42 gears and a Yank SS3600. My A4 coupe is my DD and I definitely wanted a comfortable drive. I did the gears first and the TC about 6 months later, which i don't recommend I had to do a lot of work twice. When I did the gears, driveability was fine, really like stock with more get up and go off the line. I did ALOT of reading before I chose the 3600 stall TC, like you I did not want to sacrifice any driveability but I wanted to be able to tell a difference in power. The TC was a more noticeable change than the gears, in a good way. The only difference in driveability is that you will run higher RPM's below 40 mph, then the TC will lockup and it will be exactly like stock. However, a hard start from a stand still and the back tires will definitely break loose. Something to think about, with 3.42 gears you will need a tune or you will through codes and with a high stall TC you will need a tranny cooler. I am very happy with 3.42 gears and a 3600 TC, if i had it to do over I would not do anything different.

good luck
Thanks for the info. This is what I wanted to know. However,it makes me think that maybe I just need gears, and a tune to adjust the shift points, and to tighten up the trans. Right now with the Vararam, it seems that the car doesn't go from second to third smoothly.If I hold it in second, get close to redline, and try to go to third, it goes ,but there is a significant delay.If I just keep it in third, it is better, but not great.I know, get a 6spd like my son told me, but for the most part, my driving in a congested area in NJ doesn't favor a manual trans. I drove a manual trans for about 20 years, and I had enough. Would a good tune fix these issues? Anyone?
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Old May 6, 2007 | 10:53 PM
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Go with 373's and a 3200 stall. You will never regret it!
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Old May 7, 2007 | 11:35 AM
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Not sure a tune would change that delay between 2/3. Even after all my upgrades and a Transgo shift kit, I still notice that little delay while the A4 "thinks" about going into 3rd after I manually shift it.
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Old May 7, 2007 | 09:03 PM
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Thats all great info.
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Old May 7, 2007 | 09:25 PM
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Thanks for all the info guys.I don't see going for heads and a cam in the future for me, so I guess it's just gears and a tc.I got an invite from a member here in NJ who has pretty much what I want in his car. His friend who is a GM mechanic has a car that is similar too ( higher stall), and they suggested I take a ride and see what each one is like first hand.This is why I love this place! I may be going to Etown for the Challenge this weekend to drive them and see. I'll let you know how it goes. Thanks again.
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Old May 7, 2007 | 09:25 PM
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just drove a 610rwhp A&A D1/A4 car 100 miles with 3.42's, spinning about 2k at 70mph
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Old May 7, 2007 | 09:45 PM
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I have a mint 3:42 differential for sale. Call me at 954-325-7722.

Thanks
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Old May 7, 2007 | 10:00 PM
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Default Gears!

Ronnie, how much?
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Old May 8, 2007 | 12:22 AM
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lurk
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To A4 Gears and SC

Old May 8, 2007 | 11:32 AM
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Originally Posted by berryj
Not sure a tune would change that delay between 2/3. Even after all my upgrades and a Transgo shift kit, I still notice that little delay while the A4 "thinks" about going into 3rd after I manually shift it.
Well that's your problem, when you shift manually your transmission is shifted hydraulically so it will be a slower shift.
Let it shift automatically and it will be shifted electronically, are you faster the the speed of light?
And no I'm not busting your chops, check the service manual by shifting manually you over ride the electronics.
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Old May 8, 2007 | 01:08 PM
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Originally Posted by jgorss
I have a setup similar to what you are talking about, 3.42 gears and a Yank SS3600. My A4 coupe is my DD and I definitely wanted a comfortable drive. I did the gears first and the TC about 6 months later, which i don't recommend I had to do a lot of work twice. When I did the gears, driveability was fine, really like stock with more get up and go off the line. I did ALOT of reading before I chose the 3600 stall TC, like you I did not want to sacrifice any driveability but I wanted to be able to tell a difference in power. The TC was a more noticeable change than the gears, in a good way. The only difference in driveability is that you will run higher RPM's below 40 mph, then the TC will lockup and it will be exactly like stock. However, a hard start from a stand still and the back tires will definitely break loose. Something to think about, with 3.42 gears you will need a tune or you will through codes and with a high stall TC you will need a tranny cooler. I am very happy with 3.42 gears and a 3600 TC, if i had it to do over I would not do anything different.

good luck
Great info and sounds like a great set-up! I was just wondering what sort of price this would cost (out the door) with parts and labor?
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Old May 9, 2007 | 06:48 AM
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Which way to go? Driveability being the major factor in decision. Performance is a given... LOL
3.42 w/ 3k tc?
3.42 w/ 3600 tc?
3.73 w/ 3k tc?
3.73 w/ 3600 tc?
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