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Changing tires and rims = speedometer screwed up?

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Old 04-14-2005, 10:55 PM
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Changing tires and rims = speedometer screwed up?
Well, when my dad and I installed my flame gauges like a year ago, we put the needle on 5mph higher than it was supposed to be on accident, so when my speedo said 55, I was ACTUALLY going 50. After getting the zr1s installed, now my speedo is 10 off at higher speeds, but seems to be still 5 off at lower speeds. Does this sound possible or normal side effects?
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Old 04-14-2005, 11:08 PM
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Yes, different size tires change the speedo.
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Old 04-14-2005, 11:09 PM
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yeah take it to a shop they can put the right kind of speedo gears in it to make it correct, i had to do it with the 67.
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Old 04-14-2005, 11:12 PM
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Originally Posted by Mikerock
yeah take it to a shop they can put the right kind of speedo gears in it to make it correct, i had to do it with the 67.
Fu(k speedo gears, just reprogram the computer.
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Old 04-14-2005, 11:21 PM
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Originally Posted by Rockford Fosgate Fan
Fu(k speedo gears, just reprogram the computer.
x2
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Old 04-14-2005, 11:33 PM
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there are no gears to change on the 4th gen
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Old 04-14-2005, 11:35 PM
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yeah, with the nzo wheels/stires mine read that way. I just got used to it & never bothered to get it fixed. This time when I put these new ones on, I will.
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Old 04-14-2005, 11:52 PM
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werd, I know enough how fast my car is going without the speedo, how much does it cost to reprogram the comp?
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Old 04-15-2005, 12:11 AM
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dont bother lookin. no companies will tune a computer for a 3.4. since my cam i've called so many companies. the only one who will is fastchips and its 350 bucks plus shipping of the ECU. f*ck that.
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Old 04-15-2005, 02:06 AM
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Originally Posted by NoRiceInside
dont bother lookin. no companies will tune a computer for a 3.4. since my cam i've called so many companies. the only one who will is fastchips and its 350 bucks plus shipping of the ECU. f*ck that.
just because most out there won't, doesn't mean in other areas its impossible.
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Old 04-15-2005, 03:35 AM
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hahah i was stuck in the stoneage.
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Old 04-15-2005, 01:20 PM
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Originally Posted by meissenation
werd, I know enough how fast my car is going without the speedo, how much does it cost to reprogram the comp?
I can't remeber the name of the place but that is their specialty they are in Flint on Dort highway something like specmo
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Old 04-15-2005, 10:29 PM
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what about hypertech?

what are 94 cars obd1 or obd2
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Old 04-15-2005, 10:31 PM
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hypertech I don't think will do it the '94 is I believe odb1 (my truck is anyway)
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Old 04-15-2005, 10:47 PM
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i think they sell handheld programmers that program the speedometer exclusively
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