Just when I convinced myself that the stock power of the c5 was sufficient for my daily driving and the occasional high speed run on the road, my friend brings his modded audi s4 along. It's APR computer tuned as well as some other mods, running about 18psi on the stock turbos. And of course, the audi quattro. We were at the light yesterday and we both gun it at the same time, and oh man all I can say is that I was embarassed of my a4 vert. By the time I smash the WOT and actually FEEL the car physically get into gear and move, the S4 is already a car length at least in front of me. I had the car in third and went WOT but that infamous automatic tranny lag was there. I heard the engine scream but it seems as if the computer or torque management didnt know what was going on. Does anybody know what I'm talking about or am i just the world's worst automatic driver. :D Granted that the audi has 4 wheel drive on some 16lb wheels with fat rubber, I would expect the c5 to at least keep up. He's throwing about 300hp at the fly yet those turbos keep him up. In the arena of having quick AND crisp AND situation-specific appropriate shifts (i.e. if i smash the throttle I expect the car to take off right away) what mods should I go for in terms of gearing and TC and programming? I have the factory 3.15's and would like to keep them. What benefit does a TC provide, and which applications are appropraite for a daily driver/weekend street race machine. Programming wise should I be going Predator or HPP or Powerloader? What's the difference. Still a newbie to this stuff and would like to get the best performance out of the motor. Will be considering H/C but not for a while. Thanks for all the help.

 

Sure your traction control was turned off? A Vigilante 2400-2600 stall could of made the difference at that light. When brake torqueing at the light you could of run your rpm's up higher and then launched, say 2400rpm, you would of left smoke everywhere and him!

The stock TC limit is about 1500rpm, where you would usually kill the motor when brake-torqueing, it's not high enough for a good neck-breaking launch. There are lots of good TC suppliers, you may find a reputable one in your area. I like LS1-edit for programming. It's just alittle more than HPPIII, but does it all. I had the HPP, and it was awful.

David :auto:

 

i have just what you need..............mitch3cvet@cs.com

 

I highly recommend the Powerloader to remove the torque mgmt and to have more aggressive shift points. A torque converter would be a nice upgrade as well.

 

Use something LS1Edit to remove the TQ Management and general dyno tuning....DO NOT get the PowerLoader :cheers:


[Modified by Mean Green 2000, 10:21 PM 3/29/2003]

 

:iagree:

 

I have an A4 '00 coupe also LoL, I am very curious to hear too, or is it a secret:D

What do you use to do an LS1 edit?
Thank you.

:cool: :steering:


[Modified by OvrEagR, 12:35 AM 3/30/2003]

 

My shop had it on a lap top and tuned my pcm on their dyno. It made a huge difference on my A4. I get sideways almost everyday now and catch a lot more hard second gear sctraches. The downshift is way better also. I actually have to be careful in traffic now since the traction control and Tq management doesn't kick in. :)

 

:iagree:

Forget about the Powerloader, if you want to keep your 3.15 gears the Yank 3000 is hard to beat. The Yank 3000 and 3.15s are a very potent combination. However you will get even better results if you go to 3.42 or 3.73 gears and the SY3500,ST3500 or SS3600.






[Modified by Mitch C, 6:26 AM 3/30/2003]

 

Is there a downside to going with the aftermkt TC? One thing for sure is to turn off the Traction Control. A friend told me that the car would be quicker with it turned on. Well he was very wrong. With it turned off, mine launches respectably well. I get some decent wheel spin depending on pavement type. It seems to be just enough spin to get me up into the power band. On several occasions i even had to feather the throttle back to allow it to bite. I even get some fishtail going into 2nd. My automatic seems very responsive right out of the box.

 

Depending on the converter and gears you select you can experience looseness (it feels like your tranny is slipping a little and you have to give your car a little more throttle to get going). You will rapidly get used to it and the performance boost is well worth it. :yesnod:

 

That's when you get a TransGo shift kit. :yesnod: :cheers:

 

The stall on a TC is determined (normally), by the H/C package you've selected or by the amount of torque your engine makes. 2400-3000 stall would be more than enough on a relatively stock setup. I wouldn't want to put up with more than that on a daily driver.


[Modified by ScreaminDemon, 12:59 PM 3/30/2003]