Gear ratio question,more or less top end.
03-07-2011, 07:45 AM
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Gear ratio question,more or less top end.
48T spur 18T bell,48T spur 16T bell,wich would give more top end? Thanks.Oh this is what last night brought.Wont be running it any time soon.
03-07-2011, 08:18 AM
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RE: Gear ratio question,more or less top end.
When Spur stays the same, more teeth on bell always = more speed (if the engine can pull it)
When bell stays the same, less teeth on spur always = more speed (if the engine can pull it)
When you change the final gear ratio to a higher gear (lower number), it makes the engine work harder. So its possible you can just lose speed if the engine doesnt have the power to pull the RPM to exceed what you were running previously.
When bell stays the same, less teeth on spur always = more speed (if the engine can pull it)
When you change the final gear ratio to a higher gear (lower number), it makes the engine work harder. So its possible you can just lose speed if the engine doesnt have the power to pull the RPM to exceed what you were running previously.
03-07-2011, 10:03 AM
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RE: Gear ratio question,more or less top end.
ORIGINAL: sloppyG
where in the world are you running where stock geared top speed on a jato isn't high enough?
where in the world are you running where stock geared top speed on a jato isn't high enough?
03-07-2011, 11:43 AM
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RE: Gear ratio question,more or less top end.
ORIGINAL: nitroholic
48T spur 18T bell,48T spur 16T bell,wich would give more top end?
48T spur 18T bell,48T spur 16T bell,wich would give more top end?
48 / 18 = 2.667*
48 / 16 = 3
For every revolution of the spur gear the pinion will need to turn two and three quarter times* with an eighteen tooth pinion, or three times with a sixteen tooth pinion.
*......rounded.
03-07-2011, 01:07 PM
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RE: Gear ratio question,more or less top end.
ORIGINAL: Fuel Crazy
When Spur stays the same, more teeth on bell always = more speed (if the engine can pull it)
When bell stays the same, less teeth on spur always = more speed (if the engine can pull it)
When you change the final gear ratio to a higher gear (lower number), it makes the engine work harder. So its possible you can just lose speed if the engine doesnt have the power to pull the RPM to exceed what you were running previously.
When Spur stays the same, more teeth on bell always = more speed (if the engine can pull it)
When bell stays the same, less teeth on spur always = more speed (if the engine can pull it)
When you change the final gear ratio to a higher gear (lower number), it makes the engine work harder. So its possible you can just lose speed if the engine doesnt have the power to pull the RPM to exceed what you were running previously.
