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Joined: Jul 2004
Posts: 20
yellowgt
Member
yellowgt Jan 18, 4:50am - #376939 
2002 Super Yellow Toyota Celica GT
Member
2002 Toyota Celica GT

Joined: Jul 2004
Posts: 20
Alberta, Canada
Speedometer recalibration

I have just purchased new tires for my car.
I put on 205/50/15 to replace stock 195/65(60?)/15s.
With my wife driving her minivan in front of me, it appears that I have lost 10%
speed. I now have to go 120 to do 110. I love the tires and don't want to part with them! I can easily do the math in my head while driving, or I could set up a gps on my dash. But I would like to know how to recalibrate my speedo??
Any ideas?? There must be a way. I don't want to go with bigger rims this time.
Thank you all in advance.
Keep in touch!
Stuart
Joined: Mar 2004
Posts: 1,187
fonz182
Pimpin aint easy
fonz182 Jan 18, 8:00am - #376940 

Pimpin aint easy
03 Toyota Celica GT

Joined: Mar 2004
Posts: 1,187
Hayward / UCD, CA
the way i could think of is the same way you recalibrate after painting your needles and that while being paced put in the needles at the correct speed. its too risky i think to do that, you might as well just leave it how it is. its possible to screw it up even more.
Joined: May 2004
Posts: 75
kenshin811
Member
kenshin811 Jan 18, 8:07am - #376941 

Member
2001 Toyota Celica

Joined: May 2004
Posts: 75
Oxnard, CA,usa
hell mines pretty f'ed up as it is, i need to still work on mine.
Joined: Sep 2004
Posts: 227
Marlyman
Member
Marlyman Jan 18, 11:10am - #376942 

Member
1999 Toyota Celica GTS JDM

Joined: Sep 2004
Posts: 227
Ireland
You can get you speedo recalibrated. Mine was reading in kmh when i got it from japan. I brought it to a guy who apesialises in recalibration and corrected it to read mph. Be very careful, do not get a cowboy to do this or he could permanantly fuck up your gauge cluster. Cost me E50.
Joined: Sep 2003
Posts: 2,242
Lucky_317
Specialist
Lucky_317 Jan 18, 7:11pm - #376943 

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 2,242
Fontana, CA
hard to imagine you're showing a 10% difference. it should only be around a 3-4% difference.

also you're not losing speed lol the gauges are just telling you are faster then you think. I personally would leave it be. unless you find someone you trust to do the work.

Best 60' 1.959 best 1/4 - 13.7 @ 101mph
Joined: Apr 2004
Posts: 427
speed_celica
Senior Member
speed_celica Jan 18, 9:10pm - #376944 

Senior Member
2000 Toyota Celica

Joined: Apr 2004
Posts: 427
Calgary, AB, Canada
After I painted my needels my speedo's been of by about 10km/h. It doesn't really bother me tho... I don't look at it when I drive anyways!!! grin
Joined: Jul 2002
Posts: 10,123
VSGTS14
05 WRB
VSGTS14 Jan 18, 9:32pm - #376945 

05 WRB
2005 Subaru WRX STi

Joined: Jul 2002
Posts: 10,123
Milford, NJ
why the hell did you go from 50 to 65s?

SUBARU TECNICA INTERNATIONAL
Joined: Jul 2004
Posts: 20
yellowgt
Member
yellowgt Jan 19, 4:58am - #376946 
2002 Super Yellow Toyota Celica GT
Member
2002 Toyota Celica GT

Joined: Jul 2004
Posts: 20
Alberta, Canada
I did not go from 50 to 65. The other way around 65 to 50.
First set of low-pro's. Dealer said they cant do it but you know dealers!?!?
So far I have been able to deal with it. did 120 all the way home tonight. I was hoping for a computer /ecu quick fix.

Stuart
Joined: Jul 2002
Posts: 10,123
VSGTS14
05 WRB
VSGTS14 Jan 19, 11:29pm - #376947 

05 WRB
2005 Subaru WRX STi

Joined: Jul 2002
Posts: 10,123
Milford, NJ
my bad lol
you should just get new rims, those must look really tiny
you want to keep the wheel/tire ratio in balance with what stock was like.

SUBARU TECNICA INTERNATIONAL
Joined: Jul 2004
Posts: 20
yellowgt
Member
yellowgt Feb 5, 7:12pm - #376948 
2002 Super Yellow Toyota Celica GT
Member
2002 Toyota Celica GT

Joined: Jul 2004
Posts: 20
Alberta, Canada
The wheels do look a little smaller, more room in the tire-well. But it it something new to look at. There are so many types of rims out there I would not know where to start.
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