speeddometer crazy - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s13_Angelo · 04-02-2008, 10:45 PM

my speeddometer is not reading right it reads 10 miles more, like it show that I'm doing 90 but I'm doing 80 what can cause this ?and I confirm this cause me and my friend were driving I'm both cars and he told me he was doing 70 and mine was showing 90

slider2828 · 04-02-2008, 10:57 PM

Wheel diameter.. and usually there is about 5-8 mile too high discrepancy on these older cars. Its just how it is. Also gear ratio...

*wangan_cruiser* · 04-02-2008, 11:19 PM

im running 14 inches wheel and my speedo runs like 90mph but it doesnt feel like it.

Rnz520 · 04-02-2008, 11:47 PM

Its just because things go off as they get old, mine is about 4 miles off so just conpensate with your driving. If you must find out exactly how fast you are going or see how much you are off get a gps and compare

*wangan_cruiser* · 04-03-2008, 12:48 AM

yea you can do that too just to monitor how fast you are going.

a_ahmed · 04-03-2008, 07:48 AM

which GPS would you guys recommend to get accurate speed reading. I need one too...

Rnz520 · 04-03-2008, 08:34 AM

hmm, most of the are accurate, Ive used a Garmin and another kind and both gave me the same readings. Now if you actually need a good gps Garmins are excellent, and I hear the TOM TOMS are good too, especially for their price.

HS13KLS · 04-03-2008, 08:39 AM

^^

everyone i know loves the tomtom..but dont go with off name brand things...ehh...do i need to explain?
ha

a_ahmed · 04-03-2008, 08:39 AM

yea now a days they have gotten quite cheap too. I care about accuracy mostly...

Aside from gps/map browsing/whatever, a gps based speedo would be cool lol... only speed, is there such a thing built on the cheap? So one can adjust their speedo...

HS13KLS · 04-03-2008, 08:56 AM

maybe im just dumb...but could you re phrase that?..i just didnt understand it :/

a_ahmed · 04-03-2008, 09:14 AM

1. GPS are cheap now a days to get
2. What I would be interested in is something super cheap JUST for speed readings through GPS; so I can use it for getting accurate speed reading + have the ability to adjust a non accurate analog/digital/whatever car speedo.

s13_Angelo · 04-03-2008, 03:07 PM

so there's no way to fix this , I been using my gps and it doesn't show the speed that my speedo says

04-02-2008, 10:45 PM	#1
s13_Angelo Zilvia Junkie Join Date: Jan 2008 Location: Tustin Age: 38 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	speeddometer crazy my speeddometer is not reading right it reads 10 miles more, like it show that I'm doing 90 but I'm doing 80 what can cause this ?and I confirm this cause me and my friend were driving I'm both cars and he told me he was doing 70 and mine was showing 90

04-02-2008, 10:57 PM	#2
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Wheel diameter.. and usually there is about 5-8 mile too high discrepancy on these older cars. Its just how it is. Also gear ratio... __________________ Turn and Burn!

04-02-2008, 11:47 PM	#4
Rnz520 Zilvia Junkie Join Date: Oct 2007 Location: Culpeper Age: 35 Posts: 388 Trader Rating: (0) Feedback Score: 0 reviews	Its just because things go off as they get old, mine is about 4 miles off so just conpensate with your driving. If you must find out exactly how fast you are going or see how much you are off get a gps and compare __________________ *93 240sx:KA-T, FLTA-2s, MR TR, Greddy F&R bars, Greddy gauges, Cusco brace, etc

04-03-2008, 08:34 AM	#7
Rnz520 Zilvia Junkie Join Date: Oct 2007 Location: Culpeper Age: 35 Posts: 388 Trader Rating: (0) Feedback Score: 0 reviews	hmm, most of the are accurate, Ive used a Garmin and another kind and both gave me the same readings. Now if you actually need a good gps Garmins are excellent, and I hear the TOM TOMS are good too, especially for their price. __________________ *93 240sx:KA-T, FLTA-2s, MR TR, Greddy F&R bars, Greddy gauges, Cusco brace, etc

04-02-2008, 11:19 PM	#3
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 40 Posts: 3,539 Trader Rating: (36) Feedback Score: 36 reviews	im running 14 inches wheel and my speedo runs like 90mph but it doesnt feel like it.

04-03-2008, 12:48 AM	#5
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 40 Posts: 3,539 Trader Rating: (36) Feedback Score: 36 reviews	yea you can do that too just to monitor how fast you are going.

04-03-2008, 07:48 AM	#6
a_ahmed BANNED Join Date: Mar 2006 Location: Oakville, Ontario Posts: 749 Trader Rating: (0) Rides Gallery: a_ahmed Feedback Score: 0 reviews	which GPS would you guys recommend to get accurate speed reading. I need one too...

04-03-2008, 08:39 AM	#8
HS13KLS Zilvia FREAK! Join Date: Aug 2006 Location: Illinois/California Age: 35 Posts: 1,114 Trader Rating: (13) Feedback Score: 13 reviews	^^ everyone i know loves the tomtom..but dont go with off name brand things...ehh...do i need to explain? ha

04-03-2008, 08:56 AM	#10
HS13KLS Zilvia FREAK! Join Date: Aug 2006 Location: Illinois/California Age: 35 Posts: 1,114 Trader Rating: (13) Feedback Score: 13 reviews	maybe im just dumb...but could you re phrase that?..i just didnt understand it :/

04-03-2008, 09:14 AM	#11
a_ahmed BANNED Join Date: Mar 2006 Location: Oakville, Ontario Posts: 749 Trader Rating: (0) Rides Gallery: a_ahmed Feedback Score: 0 reviews	1. GPS are cheap now a days to get 2. What I would be interested in is something super cheap JUST for speed readings through GPS; so I can use it for getting accurate speed reading + have the ability to adjust a non accurate analog/digital/whatever car speedo.

04-03-2008, 03:07 PM	#12
s13_Angelo Zilvia Junkie Join Date: Jan 2008 Location: Tustin Age: 38 Posts: 314 Trader Rating: (0) Feedback Score: 0 reviews	so there's no way to fix this , I been using my gps and it doesn't show the speed that my speedo says