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Old 17th July 2009, 09:46   #1
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Default Tata Safari 2.2vtt: Theorectical and observed speed/RPM

Hello all,
Can some one please tell me the theoretical and observed RPMs for speeds
60 in 4th Gear
80 in 5th Gear
100 in 5th Gear
120 in 5th Gear
140 in 5th Gear

in 2.2vtt?

Thanks,
Tejas
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Old 29th July 2009, 11:13   #2
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Needed some info for this for me to do this. Ive outlined the calculation so you can do this by yourself
first find your wheel dia and then calculate your wheel rpm.
Say you want the engine rpm for 100kmph in 5th gear.
Convert 100kmph to m/s by multiplying by 10/36
then your 1000/36=3.14*wheel dia in meters*wheel rpm/60.
You can calculate your engine rpm by multiplying your wheel rpm by your overall gear ratio in 5th gear.
Hope this helps.
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Old 29th July 2009, 14:00   #3
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140 @ 4k in 4th gear.

Calc says I am wrong; speedo err?

Last edited by jkdas : 29th July 2009 at 14:03.
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Old 29th July 2009, 14:44   #4
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Quote:
Originally Posted by jkdas View Post
140 @ 4k in 4th gear.

Calc says I am wrong; speedo err?
Must be the calc is right AFAIK
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