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> RPM reading @ 110km/h, survey

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nimrod2
post Aug 1 2008, 10:15 AM

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QUOTE(invisiblelim @ Aug 1 2008, 10:11 AM)
i wanna ask.. i driving Kancil 850 Auto, RPM is maintain 3k when i was on 80km/h, is count normal or got problem? full tank RM60, can only go for 200+ km, count as normal??
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your car engine 850cc only mah. cant get high speeds. at high speeds, u pushing the engine too far and this means higher fuel consumption biggrin.gif

my old iswara was about 3.1k @ 110km/h.


nimrod2
post Aug 1 2008, 10:23 AM

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QUOTE(LeVis_Jeans @ Aug 1 2008, 10:18 AM)
I using campro tongue.gif
I also tried before...if i run over 130-160kmh (RPM stick at 3.5-4k). Only can run over 480KM per tank.
If drive slow slow 90KMH (RPM only 2.5-2.7k). I can run over 550KM per tank.
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haha of course ler. lower rpm = lower engine power = less fuel consumtion lor biggrin.gif

QUOTE(invisiblelim @ Aug 1 2008, 10:20 AM)
oh.. that means is normal de la? cause really feel like high fuel comsumption =.= i thought kancil should be save fuel de ma =.= rclxub.gif
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erm i'm not sure lah but coz your engine capacity is small, thus cant go higher speeds ler.
i think its efficient if u stay below 90km/h and city driving n stuff.
thats what i know.

unless the pro's here can explain better biggrin.gif
nimrod2
post Aug 1 2008, 10:31 AM

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QUOTE(sleepwalker @ Aug 1 2008, 10:25 AM)
For most cars, max efficiency is gain around 90-100km/h where the best rpm to speed ratio is gain and wind resistance is not an issue. Any slower and the rpm to speed ratio is no longer efficient as you take longer to reach your destination and any higher speed would encounter wind resistance that will require more fuel to keep the car running at that speed.
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i thought maybe around 70-80km/h would be better?

are u sure its not?

of course driving styles play an important role too.
but comparitively, driving at 70km/h vs 90km/h, it wont save fuel to drive slower?
nimrod2
post Aug 1 2008, 10:45 AM

the imba one
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QUOTE(b00n @ Aug 1 2008, 10:36 AM)
The common fuel efficiency gauge is on 90km/h at RPM 2k. That's the myth.
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i think its more like urban legend.

haha i think for high capacity engines, its possible to have lower rpms.

for a 3.0L accord or bmw, i think the revs is around 2.5k or lower.
nimrod2
post Aug 1 2008, 11:19 AM

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QUOTE(Traveler @ Aug 1 2008, 11:01 AM)
That's true. A 2.5L 325i revs around 2k rpm at 110km/h IIRC.
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haha i'm so clever blush.gif blush.gif

QUOTE(popnyat @ Aug 1 2008, 11:09 AM)
got bike only... hehe..
110km/h 6.3k rpm...  thumbup.gif  thumbup.gif
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not bad dude. but 110km/h on a bike?
dangerous.
nimrod2
post Aug 1 2008, 11:26 AM

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QUOTE(LeVis_Jeans @ Aug 1 2008, 11:20 AM)
Depends the 3.0L accord or BMW how big Gear Box.. Gear radius is main course the RPM.
If 3.0L engine go with gen2 gear box.. it will same will go thru 3k rpm, 110kmh.
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haha why u wanna compare this sorta things dude?

normal comparison only mah.
nimrod2
post Aug 1 2008, 12:07 PM

the imba one
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QUOTE(LeVis_Jeans @ Aug 1 2008, 11:33 AM)
Dun let other ppl confuse only ma, hehe tongue.gif
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the lolz !

QUOTE(victor_hoh @ Aug 1 2008, 11:58 AM)
Kenari Auto
110km/h at 3.6K RPM.
BTW, for auto user without lockup clutch, the RPM can vary. For example, when u release the trottle, ur RPM will drop faster compared to your speed.
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i think automatic transmission will generally have higher revs for the same speed.

right?
nimrod2
post Aug 25 2008, 10:05 AM

the imba one
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QUOTE(vincent_on9 @ Aug 22 2008, 09:26 PM)
my toyota 1.6 M ae101 (silvertop engine) run 110 at 3.4k
seems quite high ya...why?
*
need service kua.

or maybe its old already. whats the age of your car?


This post has been edited by nimrod2: Aug 25 2008, 10:06 AM

 

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