What to use to tune my NB's speedometer?
08-29-2013, 11:58 AM
#41
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Join Date: Mar 2007
Location: Santa Clara, CA
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Actually, 185/55R15 is a 23.0 inch nominal diameter, which is slightly taller than the stock 195/50R15, but almost identical to the common aftermarket 205/50R15 or 225/45R15s.
(Totally unrelated, but I'm curious why that size? It seems an odd choice.)
Having the wrong sender explains everything. Used green 4.3 senders are cheap, because pretty much every 5-speed NB came with one and they rarely break. Mazda wants an arm and a leg for a new one.
If you've been running around with a sender that's 10% too low, then your odometer is probably also 10% too low for however long it's been in. Might want to factor that into your service periods and mpg calculations.
--Ian
(Totally unrelated, but I'm curious why that size? It seems an odd choice.)
Having the wrong sender explains everything. Used green 4.3 senders are cheap, because pretty much every 5-speed NB came with one and they rarely break. Mazda wants an arm and a leg for a new one.
If you've been running around with a sender that's 10% too low, then your odometer is probably also 10% too low for however long it's been in. Might want to factor that into your service periods and mpg calculations.
--Ian
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08-29-2013, 02:42 PM
#43
I'm pretty sure I have a couple green senders left in my garage. I can check in a few hours when I'm there.
FWIW, Red and Green geared senders were both used on 4.3/5-speed NBs. Red on the cars that came with 15" wheels and Green on the cars that came with 14" wheels.
FWIW, Red and Green geared senders were both used on 4.3/5-speed NBs. Red on the cars that came with 15" wheels and Green on the cars that came with 14" wheels.
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08-29-2013, 05:51 PM
#44
My car is a 2001 Sport, so it came with 16" wheels.
The tires I have on are shorter than the 16's that came on it.
Anyway, the solution was that a 3.9 got swapped in my car without me realizing it, making my math way off. Just need a 4.3, as said above.
As far as why the 185's... that's a whole thread (filled with flames) in itself.
The tires I have on are shorter than the 16's that came on it.
Anyway, the solution was that a 3.9 got swapped in my car without me realizing it, making my math way off. Just need a 4.3, as said above.
As far as why the 185's... that's a whole thread (filled with flames) in itself.
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09-03-2013, 12:41 PM
#52
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Join Date: Aug 2007
Location: Fredericton, NB
Posts: 1,186
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Never trust my memory...found it!
Yellow Box Speedometer Recalibrator 99-05
Rev said it too...yellowbox.
Yellow Box Speedometer Recalibrator 99-05
Rev said it too...yellowbox.
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