Subject	Hi Frank, maybe I can help. There are a couple of
Posted by	SirpriZ on May 22, 2005 at 1:13 AM
	This message has been viewed 83 times.
In Reply To	NE1 with 410 gears/swapped NA rear in there TT posted by frank1991(running again) on May 21, 2005 at 08:50 PM
Message	factors to consider to get accurate RPM to MPH readings. First off, if you did the NA swap or 4.10 gear install, your reading on you speedometer is going to be about 10% high (some people report more). For instance, if your speedo says 60 MPH, you are only going about 54 MPH. The second factor for the equation I'm going to direct you to, needs the variable of tire diameter. But go to my website: [ www.leadergears.com ] and there are formulae for figuring out just what you are asking, ie. When I change gears, what are my true MPH at certain RPM? Just plug in you tire diameter, gear ratio, the rear end ratio for fourth is your diff. ratio times one, whether an auto or manual (in 5th it's .75 times your final drive for a manual and .69 times your final drive for an auto). Also, if you know someone with an NA, see what there values are, and your's should be the same. The equations are pretty straight forward (I even understand them), so just plug in the requested values and get what you need. If I can be of any further help, feel free to E-mail or call me. Take care, Mark
Follow Ups	NE1 with 410 gears/swapped NA rear in there TT - frank1991(running again) 20:50:00 05/21/05 Hi Frank, maybe I can help. There are a couple of - SirpriZ 01:13:05 05/22/05 Re: Hi Frank, maybe I can help. There are a couple of - frank1991(running again) 12:28:39 05/22/05 are you using an NA or TT speed sensor? - Guapo 19:56:10 05/22/05 Re: are you using an NA or TT speed sensor? - frank1991(running again) 20:09:09 05/22/05 Yes. It feels like you need to shift into a higher gear. - zeddiea27 02:01:51 05/22/05 I just gon an NA and it's the first time I have driven one - ShakaShaun 02:29:17 05/22/05
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