QUOTE(tplcaik @ Sep 2 2008, 11:47 AM)
same with me2900~3000
RPM reading @ 110km/h, survey
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Sep 5 2008, 02:18 AM
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Oct 16 2008, 07:02 PM
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QUOTE(lynxs @ Oct 15 2008, 09:39 PM) waja..... urs got problem110 at 3500+ RPM, 120 at 4000 RPM... feel its damn high for cruising lar.....especially for a 1.6L Mines the older waja....the one with the mitsu engine mine waja auto 2002 3~3.1k rpm for 110km/h Added on October 16, 2008, 7:03 pm QUOTE(necromencer @ Oct 16 2008, 02:31 PM) same with my waja auto 2002maybe due same gearbox series This post has been edited by wch5274: Oct 16 2008, 07:03 PM |
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Nov 4 2008, 01:59 AM
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QUOTE(sam_01 @ Oct 18 2008, 12:32 AM) My perdana V6 shows ~2800 revs at 110km/h. thanks samTo prove it: Perdana v6 gear ratios: Gear Ratio 1st = 2.846 2nd = 1.581 3rd = 1.000 4th = 0.685 Final Gear Ratio = 4.350 110km/h change to meters/minutes = (110 x 1000) / 60 = 1833.3 meters/mins Speed reduction at Final gear = 0.685 x 4.35 = 2.979 Meaning 1 tire rotation equals 2.979 engine turns. Tire circumference (stock perdana v6 205/55 R16) = 1.986 meters. Tire revs per min = 1833 / 1.986 = 922.96 tire revolution / min Engine revolution per min = 922.96 x 2.979 = 2749 revs / mins So the calculated engine revs is close the reading on the rev meter (-51 revs). But that was when my auto gearbox is ok. Now using manual gearbox becoz my auto box kong already. Manual tranny reads 3100 @ 110 km/h. Not sure what are the gear ratios on the manual tranny. now i know how to calculate using gear box ratio vs tyre diameter... |
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