PREDATOR....on the 1-2 shift
Thread Starter
Instructor
Joined: Mar 2004
Posts: 125
Likes: 0
From: CONCORD NC
PREDATOR....on the 1-2 shift
have any of the guys/girls here on the forum installed one of these predators and got their car to chirp on the 1-2 shift ...and how much better did it make your car run....could you tell it right away or not really much at all???????.... 
Burning Brakes
Joined: Jul 2004
Posts: 1,192
Likes: 111
From: If your not the lead dog the view never changes Boise, Id
I have a 2004 A4 convertable with a twin cone air cleaner and the predator perf tune, under full throttle it will chirp from first to second even with the air conditioner on. 
Le Mans Master
Joined: May 2003
Posts: 5,362
Likes: 3
From: Delray Beach FL
I have a 6spd, so if I want, I can smoke 1st, 2nd and into 3rd. Predator took the annoying 1 to 4 shift out of the equation for me. 
Also, my Vette seemed to have a little better throttle response. Don't know if it really did...hard to tell with 385+ hp, but it made me feel like it did something. 
Also, my Vette seemed to have a little better throttle response. Don't know if it really did...hard to tell with 385+ hp, but it made me feel like it did something.
Racer
Joined: Apr 2005
Posts: 315
Likes: 0
From: Johnstown PA
It seemed to take my PCM about 50 miles to pick up on the different tune, then I really began to feel the difference in shifting....of course now I definitely notice a difference as Johan at Diablo custom dyno tuned it last week.
Burning Brakes
Joined: Apr 2004
Posts: 908
Likes: 0
From: Ponchatoula la.
I have an A4 with Predator tune. Pulled down et from 13.31 to 13.09. will not chirp tires on part throttle. My brother said the tires chirped on 1-2 shift at the track. I could not hear it with the GHL bullets and Blackwing filter. 
Burning Brakes
Joined: Oct 2004
Posts: 802
Likes: 0
From: Bueche Louisiana
3.15 a4 w predator will chirp the tires hard 1-2 shift on blacktop especially well made a big difference to me in all situations all points of the powerband downshifts are much more abrupt and car pulls harder with it installed
Thread Starter
Instructor
Joined: Mar 2004
Posts: 125
Likes: 0
From: CONCORD NC
sounds good to me so far!!!.....but has anybody went in and adjusted their line pressure to make it shift harder than the "performance tune" already had and if so what all did you change ....line pressure,rpm shift
ect!!....thanks
ect!!....thanks
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Burning Brakes
Joined: Oct 2004
Posts: 802
Likes: 0
From: Bueche Louisiana
sorry i gave you the wrong info heres a direct quote from another thread by mike mercury
Then after running with the basic Performance Tune for a few eeeks; then try to :
* increase shift pressure by +10%
* decrease shift time by -10%
* increase timing by +3% (if you use 92-93 octane exclusively)
he also mentins leaning it out 3 percent after everything is running good (still havent tried this yet, but all the other suggestions or how i have mine set up and it made a big improvement)
Then after running with the basic Performance Tune for a few eeeks; then try to :
* increase shift pressure by +10%
* decrease shift time by -10%
* increase timing by +3% (if you use 92-93 octane exclusively)
he also mentins leaning it out 3 percent after everything is running good (still havent tried this yet, but all the other suggestions or how i have mine set up and it made a big improvement)
Racer
Joined: Jan 2005
Posts: 311
Likes: 1
From: Arkansas
I received my Predator with a tune from SLP as part of the ZL6 package. This package, a 3.42 rear, and the TQ Mgr off, with pressures raised 10% and shift time -5, and in Comp mode, the car would completely break loose shifting from 1-2. This was so dramatic that with the Traction Control on, it would kick in to control the sideward movement of the car.
Just to see the difference, I reinstalled the stock tune, and I couldn't get the rear to break loose shifting from 1-2 unless I was on wet pavement. I'm convinced of the value of the Tuners.
Just to see the difference, I reinstalled the stock tune, and I couldn't get the rear to break loose shifting from 1-2 unless I was on wet pavement. I'm convinced of the value of the Tuners.
Racer
Joined: Jul 2004
Posts: 433
Likes: 0
From: Camarillo CA.
Originally Posted by gmosley
3.15 a4 w predator will chirp the tires hard 1-2 shift on blacktop especially well made a big difference to me in all situations all points of the powerband downshifts are much more abrupt and car pulls harder with it installed
Mine did the same thing.