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dattodude
Re: RPM to Speed Ratio
#1
No life (a.k.a. DattoMaster)
Joined:
1998/12/6 1:08
From Sydney, Australia
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Posts: 5806
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So: Doing some google magic..

http://hondaswap.com/reference-materi ... ranny-speed-vs-mph-28672/
We find 185/70-13 tyres are 23.1 inches.

I'll assume the 120Y diff is the standard Datsun 3.9:1

Now lets convert KMs to miles for the calculator:
http://www.teaching-english-in-japan.net/conversion/kilometers

Speed to RPM in 4th gear
-----------------------
60 kmh = 37.28 mph = 2114.79 RPM
80 kmh = 49.71 mph = 2819.91 RPM
100 kmh = 62.14 mph = 3525.03 RPM

Hope this helps.

Posted on: 2009/5/19 11:53
_________________
'71 Green 1200 Sedan CA18DET Project 99.98% complete
'71 White 1200 Sedan 20,000mi + A14T (twin 40DCOE 30/70 cam, extractors)
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Subject Poster Date
     RPM to Speed Ratio DattoFrog 2009/5/19 1:08
       Re: RPM to Speed Ratio Sumith 2009/5/19 11:10
       Re: RPM to Speed Ratio dattodude 2009/5/19 11:53
       Re: RPM to Speed Ratio Mawler1 2009/5/19 12:10
       Re: RPM to Speed Ratio revhead001 2009/5/19 12:21
       Re: RPM to Speed Ratio racetech 2009/5/19 14:18
       Re: RPM to Speed Ratio DattoFrog 2009/5/20 5:04




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