Guys (& gals), I'd like to improve the shift speed on my 99 C5 A4. Specifically, I want to considerably reduce the time it takes for the tranny to kickdown when I floor the throttle and also the time it takes for the tranny to actually shift gears when I change manually. First-off, would a Predator achieve these objectives? I know the Predator can increase line pressure (firmness), but can it actually reduce the delay between flooring the accelerator and the tranny responding? Secondly, has anyone tried a B&M Shift Plus or other electronic 'shift improver'?? Would be a lot cheaper than shelling-out for a Predator! Thanks.

 

One word.......TRANSGO !! :yesnod: More info here..http://www.txchange.com/transgo.htm :thumbs:

 

Ditto I listened to Vince and I am glad I did the Transgo makes a world of difference GO WITH THE TRANSGO!!!!!!!!!!!!!!!!!!!!!


QUIMBO :seeya :seeya :seeya :hurray: :hurray: :hurray: :thumbs: :chevy

 

"
A4 Shift Firmness Tab - Positive Pressure vs. Temp:
This table is related to the amount of current commanded by the pcm (from the force motor). This relates to line pressure. The lower the the value, the greater the line pressure in the transmission (thus the harder the shift). You can scale vs. TPS and temperature

A4 Shift Firmness Tab - Desired Shift Time:
The value in this table indicates the length of a shift. 0 indicates as fast as the transmission is physically capable of, and greater value indicates a longer shift. Shorter values here result in quicker, crisper, shifts.

This is how it is done using the LS1 Edit, it gives you the ability to get the car to shift the way YOU like it. You can change it every day until its perfect for you. Just my .02 worth :cheers:

 

I would love to do this mod I just don't have the cash yet :(

 

Does the Shift Time improve the response time of the tranny to throttle inputs, or does it simply make the shift between ratios faster once it starts happening? Although crisper shifts would be nice, my main objective is to reduce the delay between putting the hammer down and the tranny responding by downshifting. Currently, I'm looking at a 2 second delay (approx). Thanks.

 

I don't have any experience with the TRANSGO shift kit but I'm sure it will shift quicker & crisper then the edits I can make with the LS1 Edit. If possible find someone in your area with the TRANSGO kit & go for a ride. Everyone has their own idea of how a car should be, mine has changed with my age :( :cheers:

 

I had some LS1edit tuning done to my car and it made the shifting much firmer. You can also make it downshift a lot easier.

 

One word for ya again.......TRANSGO !!

I have both ls1 edit and Transgo, LS1 Edit was nice it did what it was supposed to do, firm up shift points, quicken shift times, but nothing like when i installed my transgo.

With Transgo your shifts are quick, Firm, down shifting is quicker - 2nd best mod for a auto - 1st being a converter

Just last week a buddy of mine running in his z28 finally listened and put a transgo kit in his car, before he had the accumilator bumped up and tunned with ls1 edit.... He actually enjoys driving his car it feels totally different and grabs gears like none other :cheers:

 

:confused:

Ok, here's the deal... will a computer tune (eg. Hypertech PPIII / Predator) improve the time it takes between flooring the throttle and the tranny actually downshifting (so I don't need to plan ahead)? Exactly why is a TransGo so much better than a computer tune? Thing is, I would be anxious about a TransGo installation for 2 reasons: 1) Finding a sufficiently skilled installer to put it in (I'm in the UK) and 2) Not liking how the car snatches the gears during gentle driving round town, etc.

Primarily, I'd like someone to tell me if a Hypertech, et al will improve the response time between flooring the accelerator and the tranny responding because, at the moment, I'm subject to a 2-second delay(ish). Also, I'd like to know WHY this delay is evident... it can be a little frustrating when someone decides to race on the street and I don't get an instant response in my car. After the 2-second delay to downshift, the other guy is already well in front! Thanks for your help folks :)


[Modified by i_york, 6:19 PM 4/7/2003]

 

I am in no means an expert all I can give is my opinion and i will try and do so, just so you know I have All of these (Hypertech, Predator, LS1 Edit, and Transgo):

Will a hypertech work - to increase firmness and shift time yes, but not as well as others

Will the Predator work - to increase firmness and shift time? Yes most likely the better of the other "electronically" tuning componets out there, the reason i say better is cuz its easier to use than Ls1 Edit

Will LS1 Edit work - to increase firmness and shift time? Yes practically the best tuning device on the market today, but not easily understood by amateur tuners. But once you figure it out there is endless means of tuning and information to change and it works with any changes you make to your car in the future (H/C, Nitrous, Blower, ect...)

Will TransGo work - to increase firness and shift time? Yes the best Mechanically device ever made for our transmissions (remember my opinion)

Why would i day transgo is better than the others, well see in transmission related issues, such as those our looking for, this is what it was designed to do, make your car shift firmer, shift cripser, downshift faster. Now the downside is thats all this does, it doesnt tun your car, it doesnt chane your shift points, it has its one purpose and it does what it says it does.

Installation is not that bad, the kit even comes with complete instructions and a video, but any experiences trans guy should be able to do the install for you with out a problem. Transgo also offers (in the kit) 3 stages of how firm the shift will be -Stage III being a complete drag race set-up - Stage II being a street strip set-up and Stage 1- just firms a lil bit. Just so you know I run with stage 2, and I think most people here do too.

Why would it be better if they all do the same thing??? Well im guessing it would be better because it is mechanical not electrical. I mean why is one cell phone better than the other they all do the same thing?? Well one is better than the other cuz of its clearness, its options, its pricing, and most importantly people all have different opinions and what they like.

One last final note - Also with transgo under normal driving you dont get the hard crisp shift all the time, its only when your agressively driving it.
Also i think there is a lil delay in downshifting from all of the above due to the electric throttle body and kick down, unlike most cars we are electric not with a manual line that runs to the front.

Well i hope this helped a lil...