Predator Question
Thread Starter
Racer
Joined: Jan 2003
Posts: 266
Likes: 0
From: Folsom CA
Predator Question
Hey Guys (or Gals),
A quickie.
After I bought my '03 C-5 auto, I did a "Predator Tune" and after tweaking the shift speeds & pressure a little, I let it load & have been pretty happy.
This morning I was putzing around in the garage, and checked the settings (almost 2 years later) and noted that the gear/ differential ratio was set to 3.42 instead of the 3.15's I know to be there.
I don't know if that was a default that I didn't change or whether the voices in my head told me to program for 3.42's (I don't think so), nonetheless, I've reset it for the 3.15 ratio.
Question is...since it's raining in Nor Cal, and I only drive the car in rain at gunpoint, is / should there be a noticeable difference?
Maybe another 20 miles per gallon, or track e.t.s under 8 seconds?
Thanks for any input.
A quickie.
After I bought my '03 C-5 auto, I did a "Predator Tune" and after tweaking the shift speeds & pressure a little, I let it load & have been pretty happy.
This morning I was putzing around in the garage, and checked the settings (almost 2 years later) and noted that the gear/ differential ratio was set to 3.42 instead of the 3.15's I know to be there.
I don't know if that was a default that I didn't change or whether the voices in my head told me to program for 3.42's (I don't think so), nonetheless, I've reset it for the 3.15 ratio.
Question is...since it's raining in Nor Cal, and I only drive the car in rain at gunpoint, is / should there be a noticeable difference?
Maybe another 20 miles per gallon, or track e.t.s under 8 seconds?
Thanks for any input.
Race Director
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Originally Posted by 50-50
Hey Guys (or Gals),
A quickie.
After I bought my '03 C-5 auto, I did a "Predator Tune" and after tweaking the shift speeds & pressure a little, I let it load & have been pretty happy.
This morning I was putzing around in the garage, and checked the settings (almost 2 years later) and noted that the gear/ differential ratio was set to 3.42 instead of the 3.15's I know to be there.
I don't know if that was a default that I didn't change or whether the voices in my head told me to program for 3.42's (I don't think so), nonetheless, I've reset it for the 3.15 ratio.
Question is...since it's raining in Nor Cal, and I only drive the car in rain at gunpoint, is / should there be a noticeable difference?
Maybe another 20 miles per gallon, or track e.t.s under 8 seconds?
Thanks for any input.
A quickie.
After I bought my '03 C-5 auto, I did a "Predator Tune" and after tweaking the shift speeds & pressure a little, I let it load & have been pretty happy.
This morning I was putzing around in the garage, and checked the settings (almost 2 years later) and noted that the gear/ differential ratio was set to 3.42 instead of the 3.15's I know to be there.
I don't know if that was a default that I didn't change or whether the voices in my head told me to program for 3.42's (I don't think so), nonetheless, I've reset it for the 3.15 ratio.
Question is...since it's raining in Nor Cal, and I only drive the car in rain at gunpoint, is / should there be a noticeable difference?
Maybe another 20 miles per gallon, or track e.t.s under 8 seconds?
Thanks for any input.
It will make the speedodometer off a little. And question for you, did you have a track # increases with the predator. And dyno #s?
Thanks
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 179
From: S.W. Ohio. . . . . . NRA Life Member
It will make the speedodometer off a little.
no speedo error on the C5 with rear axle ratio changes... either real changes or not.
Race Director
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Originally Posted by Mike Mercury
absolutely and positively 100% INCORECT
no speedo error on the C5 with rear axle ratio changes... either real changes or not.
no speedo error on the C5 with rear axle ratio changes... either real changes or not.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 179
From: S.W. Ohio. . . . . . NRA Life Member
you tell us? You made the statement. Are you sure you were correct? The C5 is a unique beast. Yes; tire size changes will effect the speedo; but rear axle ratio changes won't.
You are guessing... or applying common sense to manufacture a fact. We are not guessing. Spend time to discover where the C5 VSS sensor is located... and it will become all too clear for you.
You are guessing... or applying common sense to manufacture a fact. We are not guessing. Spend time to discover where the C5 VSS sensor is located... and it will become all too clear for you.
Last edited by Mike Mercury; Oct 23, 2004 at 05:12 PM.
Team Owner
Joined: Aug 2003
Posts: 38,314
Likes: 35
Originally Posted by Mike Mercury
you tell us? You made the statement. Are you sure you were correct? The C5 is a unique beast. Yes; tire size changes will effect the speedo; but rear axle ratio changes won't.
You are guessing... or applying common sense to manufacture a fact. We are not guessing. Spend time to discover where the C5 VSS sensor is located... and it will become all too clear for you.
You are guessing... or applying common sense to manufacture a fact. We are not guessing. Spend time to discover where the C5 VSS sensor is located... and it will become all too clear for you.
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Race Director
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Originally Posted by Mike Mercury
you tell us? You made the statement. Are you sure you were correct? The C5 is a unique beast. Yes; tire size changes will effect the speedo; but rear axle ratio changes won't.
You are guessing... or applying common sense to manufacture a fact. We are not guessing. Spend time to discover where the C5 VSS sensor is located... and it will become all too clear for you.
You are guessing... or applying common sense to manufacture a fact. We are not guessing. Spend time to discover where the C5 VSS sensor is located... and it will become all too clear for you.
)
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 179
From: S.W. Ohio. . . . . . NRA Life Member
This "speedo error" is a touchy subject here; as we don't tollerate mis-information. And that one happens here too often.
email me if you really want to know the specifics.
email me if you really want to know the specifics.
Last edited by Mike Mercury; Oct 23, 2004 at 09:08 PM.