Predator and Programming
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 966
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From: Lansing MI
Predator and Programming
I just got a Predator and cruising the board I see several people say you need to pull the fuse for AH/TC before programming?? Is this still the case as I can't find that info anywhere in the manual. Also, do gear ratio changes work with the Predator, I know it doesn't correct the speedo as the vette doesn't need that due to it reading the reluctor ring on the carrier. Any thought/help would be appreciated. Jeff
Le Mans Master
Joined: Jan 2003
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From: Tyler TX
Re: Predator and Programming (G-lock)
If you change gears in and A4 the predator will adjust and correct your speedometer when you correct your gear setting. M6" don't have to change there's. :yesnod: :thumbs:
Burning Brakes
Joined: May 2003
Posts: 787
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Re: Predator and Programming (G-lock)
I never pulled a fuse when installing a predator tune, and I haven't had any issues.
As for Predator and a gear change... Not sure if there is a new version out, but when I got my Predator, I had to contact James to have him give me a new tune since I couldn't manually change the gearing info.
As for Predator and a gear change... Not sure if there is a new version out, but when I got my Predator, I had to contact James to have him give me a new tune since I couldn't manually change the gearing info.
Team Owner
Joined: Jan 2003
Posts: 21,234
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From: Freestate Corvette Club! Elkridge, MD
St. Jude Donor '17
Re: Predator and Programming (Oyea)
I JUST got mine.... the only ref to pulling a fuse i have seen was to disable OnStar (not a prob in a Vette). there should be no need as that syustem would not cause a voltage drop with sitting with the engine off and they key on.
If you got it from James at RunninWithTheDevil.com, he can make a custom tune for you for free.
If you got it from James at RunninWithTheDevil.com, he can make a custom tune for you for free.
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
Re: Predator and Programming (LittleBoyBlu99)
If you change gears in and A4 the predator will adjust and correct your speedometer
Absolutely - Positively - no speedo error on a C5 when changing rear axle ratio.
PERIOD !
:cuss
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 966
Likes: 43
From: Lansing MI
Re: Predator and Programming (Mike Mercury)
Mike-
You and I are on the same page, but the section in the manual is fairly cryptic. It says "Corrects speedometer and transmission for gear changes. N/A for Corvette(y-car)." So does this mean it doesn't correct the speedo(since Vettes don't need it) but DOES it fix the transmission shift points. Thanx in advance. Jeff
You and I are on the same page, but the section in the manual is fairly cryptic. It says "Corrects speedometer and transmission for gear changes. N/A for Corvette(y-car)." So does this mean it doesn't correct the speedo(since Vettes don't need it) but DOES it fix the transmission shift points. Thanx in advance. Jeff
Burning Brakes
Joined: Apr 2003
Posts: 908
Likes: 4
From: TROY MI
Re: Predator and Programming (G-lock)
I bought one of the first Predators released (DEC/02). I had to ship it back for a update and it still did not fix my shift points when I changed from 3.15 to 3.73 gears. I was able to get a tune from James (RWTD) via the computer that allowed me to change shift points. He told me that the Predator would only adjust for a gear change of 10% or less.The fix he gave me via the computer was to be put in later versions of the Predator. I am not sure if that ever happend. If it hasn't I am sure that James can do the same tune for you.
Advanced
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From: McAllen/Cedar Park Texas
Re: Predator and Programming (G-lock)
The Predator did fix my speedo problem with the A4 when I changed the gears from 3:15's to 3:90's. My tuner did have to email the tune to Predator to get the car to shift correctly. After they emailed the new program back the car shifts perfect. Predator said this was a common problem with A4's.
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Team Owner
Joined: Apr 2001
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From: S.W. Ohio. . . . . . NRA Life Member
Re: Predator and Programming (South Tex Vette)
Absolutely - Positively - no speedo error on a C5 when changing rear axle ratio.
PERIOD
(repeated... it can't be written any plainer).
100% correct. The speedo calibrate function on the Predator is for F bodies... and the owners manual correctly states that the C5 does not need it's speedometer recalibrated with a rear axle ratio change.
A rear tire heigth variation will cause the speedo to be incorrect; but not a rear ratio change.
[Modified by Mike Mercury, 9:42 PM 3/29/2004]
PERIOD
(repeated... it can't be written any plainer).
It says "Corrects speedometer and transmission for gear changes. N/A for Corvette(y-car)." So does this mean it doesn't correct the speedo(since Vettes don't need it) but DOES it fix the transmission shift points. Thanx in advance. Jeff
A rear tire heigth variation will cause the speedo to be incorrect; but not a rear ratio change.
[Modified by Mike Mercury, 9:42 PM 3/29/2004]
Advanced
Joined: Jan 2004
Posts: 94
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From: McAllen/Cedar Park Texas
Re: Predator and Programming (Mike Mercury)
So why is it when I purchased the 3:90 differential w/hardend shafts the solicitation from Ecklers required pragamming for A4?
I knew when I left the dealer that the speedo said I was doing 130 but it did'nt seem that fast at all with? :confused:
Mike you speak of a ring at the end of the differential, which is the standard for this equation not o occur. Could it be that the differntial units bought by Eklers who in return purchased them from Breatless Performance have changed this gear and/or ring that you refer to?
[Modified by South Tex Vette, 11:29 PM 3/29/2004]
I knew when I left the dealer that the speedo said I was doing 130 but it did'nt seem that fast at all with? :confused:
Mike you speak of a ring at the end of the differential, which is the standard for this equation not o occur. Could it be that the differntial units bought by Eklers who in return purchased them from Breatless Performance have changed this gear and/or ring that you refer to?
[Modified by South Tex Vette, 11:29 PM 3/29/2004]
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 966
Likes: 43
From: Lansing MI
Re: Predator and Programming (South Tex Vette)
South Tex Vette-
It's possible that the carrier for the 3.73, 3.90 and lower might have a different reluctor ring tooth count on it. As I understand it the carrier reluctor ring is of a fixed tooth count so that the speedometer is always correct since the rotational speed of the carrier is fixed by the size of the tire not the by the rear ratio of the gear set. This would of accounted for the speedo error you observed. Jeff
It's possible that the carrier for the 3.73, 3.90 and lower might have a different reluctor ring tooth count on it. As I understand it the carrier reluctor ring is of a fixed tooth count so that the speedometer is always correct since the rotational speed of the carrier is fixed by the size of the tire not the by the rear ratio of the gear set. This would of accounted for the speedo error you observed. Jeff
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 966
Likes: 43
From: Lansing MI
Re: Predator and Programming (G-lock)
Well the programming went fine, no need to pull fuses, so I'm off to the strip for the test as soon as I can find a nice day! After reading all the posts here I'm still not sure if the Predator can handle a gear change or not. I AM clear that the speedo is not the issue, but does the Predator fix the transmission shift points?? BTW my Predator has 1.03 code in it. Thanx for all the replies. Jeff
