Gear question

D

DeathMetal

Member

Jun 3, 2004

3

2

13

Wisconsin

Jul 17, 2004

#1

• Jul 17, 2004

• #1

I have an automatic and I understand you have to recalibrate the computer when you put in new rear end gears which can be expensive. I was wondering if you can drive without recalibrating, or would that mess something up? It would probably be a bit before I baught a Diablosport predator or something like it.

 

jrc_03_gt

New Member

Jan 1, 2004

786

3

0

Jul 17, 2004

#2

• Jul 17, 2004

• #2

I think it puts more miles on the car than you are actually traveling. I also think with an automatic your car wont know when to shift.

 

Go HoTO!

New Member

Apr 11, 2004

602

0

0

Mountaintop, PA

Jul 17, 2004

#3

• Jul 17, 2004

• #3

Bingo! He said it. A lot of guys cheap out on a speed cal, but just think if your car piles on 20% more miles. With an auto it is really a must. Speed cals are less than $100 or get a chip/programmer.

www.mustangtuning is starting to deal with SCT. Call them to see what a chip will cost. They are usually very resonable. A chip is a nice mod with an auto because you can change your shift points and firm up your shifts plus gain about 10 hp. So, say the chip is $200, you are gonna have to drop $100 on a speed cal anyway and you get the other benefits.

 

Wikkdgt

New Member

Jul 17, 2003

445

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0

Cincinnati, OH

Jul 17, 2004

#4

• Jul 17, 2004

• #4

I thought you couldn't use a speed cal for an automatic? I might be wrong though, just thought I heard that somewhere. Also without reprogramming for the gears you will bounce off the rev limiter when you stomp on it. My buddy did that for awhile, and now he has a chip and it's a totally different beast with the shift points changed.

 

BAFMustangGT

New Member

Jul 3, 2004

204

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Rochester, NY

Jul 17, 2004

#5

• Jul 17, 2004

• #5

Speed Cals dont work for a Auto...you have to get a programmer, i would get a preditor and set your shift points and rev lim and all that stuff along with fixing your speed and stuff.

 

Green4.6GT

Size Matters

Founding Member

Dec 31, 2001

2,910

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0

Regina, Sask, Canada

Jul 17, 2004

#6

• Jul 17, 2004

• #6

yea i just put 4.30s in my car with the auto, and the miles rack up FAST.. also it looks like youre going a lot faster than you are (speedo).. i had my 96 GT over 150 mph according to the speedo last night.. and it definately isnt that fast hahahah


-Ryan

 

Go HoTO!

New Member

Apr 11, 2004

602

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Mountaintop, PA

Jul 17, 2004

#7

• Jul 17, 2004

• #7

BAFMustangGT said:

Speed Cals dont work for a Auto...you have to get a programmer, i would get a preditor and set your shift points and rev lim and all that stuff along with fixing your speed and stuff.

Click to expand...

Sorry, I did not know that. Seems like the SCT or the Pred. is a no brainer then.

 

Green4.6GT

Size Matters

Founding Member

Dec 31, 2001

2,910

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Regina, Sask, Canada

Jul 17, 2004

#8

• Jul 17, 2004

• #8

Wikkdgt said:

I thought you couldn't use a speed cal for an automatic? I might be wrong though, just thought I heard that somewhere. Also without reprogramming for the gears you will bounce off the rev limiter when you stomp on it. My buddy did that for awhile, and now he has a chip and it's a totally different beast with the shift points changed.

Click to expand...

ive never hit the limiter with my 4.30's

 

Wikkdgt

New Member

Jul 17, 2003

445

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0

Cincinnati, OH

Jul 17, 2004

#9

• Jul 17, 2004

• #9

Green4.6GT said:

ive never hit the limiter with my 4.30's

Click to expand...

My buddies has 4.10's and before he got his chip, everytime he went from a stop and stomped on it, it would hit the rev-limiter, then hesitate, and then shift really hard into 2nd, snapping your head back.

 

T

Too Slow

New Member

Jan 23, 2004

209

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Houston, TX

Jul 17, 2004

#10

• Jul 17, 2004

• #10

since your car is an 01 you will either need a chip or a programmer. i put a chip in my 02 with 4.10s. before i put the chip in my speedo was way off and was reading more miles than i actually drove. i had the chip burned for firmer shifts and now i can chirp 3rd gear.

 

L

laser2kgt

New Member

Feb 18, 2004

237

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Laredo, TX

Jul 17, 2004

#11

• Jul 17, 2004

• #11

ok, so i have to spend another $300 on a chip to adjust more stuff if i put gears on my car? my car is a 00' auto by the way, if that makes a difference.

 

Green4.6GT

Size Matters

Founding Member

Dec 31, 2001

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Regina, Sask, Canada

Jul 17, 2004

#12

• Jul 17, 2004

• #12

yes and no.. you dont have to for the car to run fine, but if you want your speedo to be correct then yes.. but keep in mind that 300 bucks youre spending on a chip is not ONLY to calibrate for gears, it also changes your shiftpoints, firmness, stall, calibrates for exaust mods, bumps timing, chainges airfuel... etc they are worth the money forsure

-Ryan

 

D

DeathMetal

Member

Jun 3, 2004

3

2

13

Wisconsin

Jul 17, 2004

#13

• Jul 17, 2004

• #13

Thanks guys, I decided to just order the Predator first before I start with any other mods.

 

0

01TrueBlueCobra

New Member

Feb 16, 2004

336

1

0

somewhere

Jul 17, 2004

#14

• Jul 17, 2004

• #14

You could also try a Hypertech programmer it's cheaper then the other programmers. With a programmer you could also change shift firmness and shift points. Also I hear with Auto's the least you should get is 4.10s.

 

G

GoneIn11

New Member

Jun 15, 2004

16

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0

Jul 22, 2004

#15

• Jul 22, 2004

• #15

The new Hypertech programmer does indeed ROCK! I love it... for the money, you can't beat it.

 

Dark Knight GT

I can't get it up......ok that didn't sound right.

May 26, 2003

3,653

2

56

Ozark, Missouri

Jul 22, 2004

#16

• Jul 22, 2004

• #16

If you're going to bother with changing out the gears, I'de tell you to go ahead and get something to flash or program your ecu so you don't have to worry about your speedo being off or your shifts being off. When EEC Doc put my parts in over this past weekend, he built me a custom program with his sct tuning software and it worked great. It corrected the speedo and the shifts seem fine. I'm still yet to floor it as I'm breaking in these 4.30's and other differential parts we put in but once the break in is done, well, you know what I'm gonna do.