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Need tuning info!

  • Thread starter Thread starter ripbikes1000
  • Start date Start date Sep 6, 2005
R

ripbikes1000

New Member
Sep 6, 2005
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Dover, DE
Sep 6, 2005
#1
  • Sep 6, 2005
  • #1
I have a 2003 GT with K&N CAI, 75mm throttle body, flowmaster catback exh, and 4:10 rear ratio. i cant run any better than 14.4. is that right? should i have had any tuning done after those minor mods? please help with any info possible

Thanks!!
 

03ghoststang

Well-Known Member
Jul 16, 2005
1,930
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57
Los Angeles, California
Sep 6, 2005
#2
  • Sep 6, 2005
  • #2
those numbers don't sound right is your car an Auto ar 5 speed in either case you have to recalibrate the speedo for the gear swap if you havent done that because there is not much info to go by.
 

bham_gt

New Member
Sep 21, 2004
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Birmingham, AL
Sep 6, 2005
#3
  • Sep 6, 2005
  • #3
You should be running faster than that. I ran a 14.33 with only welded in MAC's and a drop-in K&N. As already posted, a tune will recalibrate your speedometer.
 
R

ripbikes1000

New Member
Sep 6, 2005
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Dover, DE
Sep 6, 2005
#4
  • Sep 6, 2005
  • #4
havn't calibrated the speedo... does that prove the same for my rpm guage? it seems like i'm hitting my redline limiter to soon. on the track i have to shift into 4th to prevent the rev limiter from hitting in?
 

mogs01gt

Founding Member
Jul 22, 2002
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Ohio
Sep 6, 2005
#5
  • Sep 6, 2005
  • #5
you do not need a tune and yes that is normal to shift into 4th.

Just learn how to drive the car better.
 

03ghoststang

Well-Known Member
Jul 16, 2005
1,930
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57
Los Angeles, California
Sep 6, 2005
#6
  • Sep 6, 2005
  • #6
yeah for any type of gear swap you have to recalibrate your speedo when i got my 3.73's on i got the diablosport also and recalibrated everything to my 3.73 swap, my shift points and shift firmness and stuff like that
 
R

ripbikes1000

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Sep 6, 2005
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Dover, DE
Sep 6, 2005
#7
  • Sep 6, 2005
  • #7
how do i go about recalibrating that stuff?
 

mogs01gt

Founding Member
Jul 22, 2002
3,113
30
119
Ohio
Sep 6, 2005
#8
  • Sep 6, 2005
  • #8
you have a manual correct? You will only need to recalibrate the speedo.
 

03ghoststang

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Jul 16, 2005
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57
Los Angeles, California
Sep 6, 2005
#9
  • Sep 6, 2005
  • #9
is your car a 5 speed or auto?
 

forpit2000gt

Founding Member
Jun 30, 2002
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Columbia, SC
Sep 6, 2005
#10
  • Sep 6, 2005
  • #10
if he usedto stay in third and now has to shift to fourth, I'd say he is manual.

The times ar probably right. get some DR and practice launching on the 4.10s.
 

streetstang03

unModerator
Dec 27, 2003
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1
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the dark side of the moon/home of the 1999, 2003,
Sep 6, 2005
#11
  • Sep 6, 2005
  • #11
practice and sticky tires. whats your 60'??? take off that throttle body too.
 

03ghoststang

Well-Known Member
Jul 16, 2005
1,930
1
57
Los Angeles, California
Sep 6, 2005
#12
  • Sep 6, 2005
  • #12
yeah they sell the speedo calibration for 5 speed's try modular power house or steeda some of those shops
 
R

ripbikes1000

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Sep 6, 2005
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Dover, DE
Sep 6, 2005
#13
  • Sep 6, 2005
  • #13
Thank you all for the good info!! i'm new into all this car stuff and i apreciate all the info!! also whats a good launching technique??? yes it is a 5-speed
 
R

ripbikes1000

New Member
Sep 6, 2005
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Dover, DE
Sep 6, 2005
#14
  • Sep 6, 2005
  • #14
oh one more... why take off the throttle body(75mm)?? what should i put on?
 

streetstang03

unModerator
Dec 27, 2003
0
1
0
the dark side of the moon/home of the 1999, 2003,
Sep 6, 2005
#15
  • Sep 6, 2005
  • #15
TBs arent really worth it on a N/A 4.6L. a 75mm really only helps on a blown car. if you dont ever plan on going w/ forced induction, you should replace the 75mm w/ a 70mm.
 

03ghoststang

Well-Known Member
Jul 16, 2005
1,930
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57
Los Angeles, California
Sep 6, 2005
#16
  • Sep 6, 2005
  • #16
ripbikes1000 said:
Thank you all for the good info!! i'm new into all this car stuff and i apreciate all the info!! also whats a good launching technique??? yes it is a 5-speed
Click to expand...


when i would race my friends GT before i got mine i would launch his car at around 3500-4000 rpm and slip the clutch to the point where the tires would be able to break traction and it would give me good 60ft times in the 2.1-2.0
 

streetstang03

unModerator
Dec 27, 2003
0
1
0
the dark side of the moon/home of the 1999, 2003,
Sep 6, 2005
#17
  • Sep 6, 2005
  • #17
what tires are you running right now?? think about some Nitto drag radials for the rear
 

03ghoststang

Well-Known Member
Jul 16, 2005
1,930
1
57
Los Angeles, California
Sep 6, 2005
#18
  • Sep 6, 2005
  • #18
streetstang03 said:
what tires are you running right now?? think about some Nitto drag radials for the rear
Click to expand...


+1 on the Nitto DR's
 
R

ripbikes1000

New Member
Sep 6, 2005
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0
Dover, DE
Sep 7, 2005
#19
  • Sep 7, 2005
  • #19
im gonna look into those DR's!!
thanks!
 
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