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Speedo Calibration question

  • Thread starter Thread starter stangdrvr06
  • Start date Start date Oct 1, 2007

stangdrvr06

New Member
May 17, 2006
42
0
0
Oct 1, 2007
#1
  • Oct 1, 2007
  • #1
Hey guys i just had a real quick question. I got my 4.10's installed but didn't get the speedo calibrated. Is there a way i can do it myself with a tuner? if yes which one would i need?? btw its a 02 gt 5 speed
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Oct 1, 2007
#2
  • Oct 1, 2007
  • #2
SCT X-cal II
 

fudleyd

New Member
Jan 10, 2003
180
0
0
Littleton, CO
Oct 2, 2007
#3
  • Oct 2, 2007
  • #3
+1 on the SCT...I am not sure where you are located but you might wanna check what the local tuners are using as well before you spend the cash.
 

SaleenGT2001

Well-Known Member
Jul 18, 2005
2,811
4
58
Four Oaks NC
Oct 2, 2007
#4
  • Oct 2, 2007
  • #4
SCT has a new XCAL 3 that looks very nice
 

AdRock

Member
Nov 13, 2003
521
1
19
South Texas
Oct 2, 2007
#5
  • Oct 2, 2007
  • #5
If 4.10's are the only thing you need calibrated for then I'd suggest a speedcal. Much much cheaper than a handheld tuner if you don't hjave a bunch of mods and don't want to bother with having to deal with a shop.
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Oct 2, 2007
#6
  • Oct 2, 2007
  • #6
AdRock said:
If 4.10's are the only thing you need calibrated for then I'd suggest a speedcal. Much much cheaper than a handheld tuner if you don't hjave a bunch of mods and don't want to bother with having to deal with a shop.
Click to expand...

Speed cals don't work on auto trans from 99 and up. At least I think its 99 and up. Just a warning in case you don't have a manual trans.
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Oct 3, 2007
#7
  • Oct 3, 2007
  • #7
Rusty67 said:
Speed cals don't work on auto trans from 99 and up. At least I think its 99 and up. Just a warning in case you don't have a manual trans.
Click to expand...

wait..what?
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Oct 3, 2007
#8
  • Oct 3, 2007
  • #8
At least thats what everyone has told me. I have an automatic V6 and I put an 8.8 in with 3.55:1 gears and my spedo has been off ever since. I'm not going to buy a tuner just to correct that, it costs WAY too much. I looked into a speed cal but I was told it couldn't be used with my auto trans be several sources.

Looked it up:
http://www.americanmuscle.com/speedcal-373-gear-oil-kit.html
Note: The Dallas Mustang Speedcal will only work with 1994-2004 manual transmissions and 1994-1998 automatic transmissions. This gear kit is for the 8.8" Ford Rear End.
Click to expand...
 

AdRock

Member
Nov 13, 2003
521
1
19
South Texas
Oct 4, 2007
#9
  • Oct 4, 2007
  • #9
Rusty67 said:
Speed cals don't work on auto trans from 99 and up. At least I think its 99 and up. Just a warning in case you don't have a manual trans.
Click to expand...

Nope, mines a 5 speed. I've had a speedcal in my car for at least 2 years and it's worked great. And yes, it won't work with an automatic. I made sure that the OP had said he had a 5 speed before recommending it.
 
C

cronin49

Banned
Aug 12, 2003
432
1
16
SC
Oct 4, 2007
#10
  • Oct 4, 2007
  • #10
Rusty67 said:
At least thats what everyone has told me. I have an automatic V6 and I put an 8.8 in with 3.55:1 gears and my spedo has been off ever since. I'm not going to buy a tuner just to correct that, it costs WAY too much. I looked into a speed cal but I was told it couldn't be used with my auto trans be several sources.

Looked it up:
http://www.americanmuscle.com/speedcal-373-gear-oil-kit.html
Click to expand...

You are going to ruin your tranny if you don't get the speedo calibrated, and I'm too tired to explain why, but this only applies to those with automatics, just talk to a reputable tuner.
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Oct 4, 2007
#11
  • Oct 4, 2007
  • #11
First time I've ever heard that from anyone. I'd love an explenation when you are not tired
 
C

cronin49

Banned
Aug 12, 2003
432
1
16
SC
Oct 4, 2007
#12
  • Oct 4, 2007
  • #12
Rusty67 said:
First time I've ever heard that from anyone. I'd love an explenation when you are not tired
Click to expand...

It has to do with the automatic transmissions shift points and the computer misreading them.
I read an article in MM&FF awhile ago, I will see if I can find it, but thats gonna be dificult because I have about 100 issues lying around.
 

Skidzz

Tinkerbell
Apr 11, 2005
328
1
19
Salt Lake City, UT
Oct 4, 2007
#13
  • Oct 4, 2007
  • #13
Just get a speedcal if you just want to fix your speedometer. I got one when I did my gear swap and it works great. Pretty accurate too.
 
F

Freak Stang

New Member
Sep 15, 2007
8
0
0
Oct 4, 2007
#14
  • Oct 4, 2007
  • #14
Speedcal is the least expensive way to do it. Going with a Diablo Predator or SCT XCAl 2 gives you more for your money. These hand held tuners give you fuel and timing curve changes also. These can potentially give you performance gain with proper usage.
 
M

mklovell

New Member
Jun 19, 1999
29
0
1
Fremont, Ohio
Oct 6, 2007
#15
  • Oct 6, 2007
  • #15
I used a Speedcal for 2 years and it worked flawlessly. I recently pulled it out when I upgraded with the S/C and SCT tuner. It's setting on the shelf. Make me an offer. Everything included except for the hot wire tap (Crimp on)

Woops...it is for 99-04.....
 
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