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 RPM reading @ 110km/h, survey

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stormyz
post Nov 4 2008, 07:23 PM

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QUOTE(damone @ Nov 4 2008, 12:34 AM)
My 4G13 110 km 2800 rpm le.....how also?
*
i wish i can get you 2800 rpm... sad.gif


QUOTE(quick_shaq @ Nov 4 2008, 02:15 AM)
omg ... n i tot my 4G13 was high at 3.5K rpm sweat.gif
what car is that?
wira ? or satria?
*
is a wira...lol.. 3.5 ...mine fifth gear give me tat 4.5 result...
freaking sad !

QUOTE(! Love Money @ Nov 4 2008, 08:36 AM)
i thought i rev high on my kancil only blink.gif

*
hmm..i guess even ur kancil can ta pao me anytime....


so anyone noe wats the problem wif my rpm ??

This post has been edited by stormyz: Nov 4 2008, 07:24 PM
rusty_1989
post Nov 5 2008, 04:36 PM

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@ TS

my car is 4g69 2.4L Lancer

ar 110kmh on speedo - 3.1k rpm
TSjoanalooidog
post Nov 5 2008, 06:09 PM

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updated.........
sjz
post Nov 5 2008, 07:04 PM

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QUOTE(sam_01 @ Oct 18 2008, 12:32 AM)
My perdana V6 shows ~2800 revs at 110km/h.

To 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.
*
You must be expert in Maths... tongue.gif
Help me to calculate with this...
Kembara.
st: 2.730, 2nd:1.526, 3rd:1.000, 4th:0.696. Rev.:2.290


Added on November 5, 2008, 7:06 pm
QUOTE(stormyz @ Nov 3 2008, 11:04 PM)
user posted image

My RPM 4.5k @ 110 KM/H ...


something not rite..

anyone can guide me...?  cry.gif

4g13 ....
*
That external rpm meter maybe not that accurate la....
How you feel about the sound?
You can judge from the sound actually
I feel that original rpm is more accurate.


Added on November 5, 2008, 7:14 pm
QUOTE(ahpaul82 @ Oct 15 2008, 11:37 AM)
98' Perodua Kancil 850EX (M)

[attachmentid=630441]

110KM/h @ 4.2k-RPM  sweat.gif  sweat.gif  sweat.gif
engine want explode already  sweat.gif  sweat.gif  sweat.gif
*
I have an old Iswara A/T (1993), put it aside for a long time already.
The result is worst than your Kancil... smile.gif
110km/h need around 4.5.
Last week i have nothing to do, then suddenly arise an idea, why not i try the max speed for a 15 years car.. brows.gif
Then i depress all the pedal while on highway, suprisingly, can get 150km/h and up, but the rpm is 6.5... shocking.gif
And the engine really sounds like it's going to explode anytime soon and you know la..
Proton's quality, it shake like i'm not driving a car but driving a 'horse operated car' instead.
And the sound also like aeroplane going to take off tongue.gif
Then after that when i drive home, the car spoilt already... Pity...
The problem is: When i didn't press the acceleration pedal, the engine will die, any idea how to solve it? Till now still didn't repair it... Just put it aside...


Added on November 5, 2008, 7:16 pm
QUOTE(torresism @ Oct 15 2008, 09:31 PM)
Proton Saga Blm (M) 1.3

90km/h at 3krpm, 110km/h at 3.6krpm, 120 km/h at 4krpm

sweat.gif  sweat.gif  sweat.gif  sweat.gif  sweat.gif  sweat.gif

but the rpm meter easy raised from 3k till 4krpm laugh.gif
*
That consider a very bad result for a new car...

This post has been edited by sjz: Nov 5 2008, 07:17 PM
V12Kompressor
post Nov 5 2008, 07:53 PM

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QUOTE(sjz @ Nov 5 2008, 07:04 PM)
That external rpm meter maybe not that accurate la....
How you feel about the sound?
You can judge from the sound actually
I feel that original rpm is more accurate.
*
Wira/Satria 1.3 doesn't come with OEM rpm meter. They get speedometer in the middle, fuel meter on the right and engine temperature on the left only. Sad. sad.gif

BTW, sam_01, how you get your tyre circumference? As I remember, tyre circumference is diameter of the tyre+rim x pi. So your Perdana's tyre circumference should only be 0.759mm. hmm.gif

This post has been edited by V12Kompressor: Nov 5 2008, 07:59 PM
mcchin
post Nov 5 2008, 08:28 PM

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QUOTE(mcchin @ Feb 14 2008, 12:18 PM)
Hi my first topic here in FnF

just wanna do a compilation of car revs
My Nissan Sunny 130Y:

4th gear:
@ 60kmph = TBA
@ 90kmph = TBA
@ 100kmph = 2950rpm
@ 110kmph = 3250rpm

5th gear(overdrive)
@ 60kmph = TBA
@ 90kmph = 2300rpm
@ 100kmph = 2500rpm
@ 110kmph = 2750rpm
Company car, Proton Wira 1.5, Auto, 3 gears

@ 60kmph = TBA
@ 90kmph = TBA
@ 100kmph = 3100rpm
@ 110kmph = 3300rpm
Colleague car, Honda Accord 2.0, Auto

@ 60kmph = TBA
@ 90kmph = TBA
@ 100kmph = 2600rpm
@ 110kmph = 2800rpm

Note:
1. All value are obtained on level and straight roads
2. Please abide by the Road and Transport regulation at all times
3. Please ensure own safety and the people around you when operating a vehicle

*disclaimer: all value are approximate due to safety reasons
Compared to my own Nissan, the 3gear proton seems to rev much higher than usual. I took notice when the engine sound was loud when travelling at max speed limit and saw the rev in excess of 3000rpm.
Even with sparse insulation on the Nissan, when idling, you can barely hear the engine sound
and the sound is intrusive once you past the legal speed limit.

This, I think, the newer proton Wira is suitable for urban drive where top speed is not essential

for me I have always standby the concept that lower revs at higher speeds mean lower fuel consumption

same goes for my trusty metal stead, EX5 (lama version)

so whats your revs?
*
from my old abandonned thread
topimerah
post Nov 5 2008, 10:47 PM

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Mine Waja Campro 1.6e Auto Yr 2007
Already clock 56000km
70km/h = 1.8k rpm
90km/h = 2.3k rpm
110km/h = 2.8k rpm
sam_01
post Nov 6 2008, 10:15 PM

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QUOTE(V12Kompressor @ Nov 5 2008, 07:53 PM)
Wira/Satria 1.3 doesn't come with OEM rpm meter. They get speedometer in the middle, fuel meter on the right and engine temperature on the left only. Sad. sad.gif

BTW, sam_01, how you get your tyre circumference? As I remember, tyre circumference is diameter of the tyre+rim x pi. So your Perdana's tyre circumference should only be 0.759mm. hmm.gif
*
There are lots of webites that can do the calculations. You can find your tyre circumference HERE.
Or you can take a measuring tape and measure your tyre circumference yourself if you want to be really sure smile.gif


Added on November 6, 2008, 10:24 pm
QUOTE(sjz @ Nov 5 2008, 07:04 PM)
You must be expert in Maths... tongue.gif
Help me to calculate with this...
Kembara.
st: 2.730, 2nd:1.526, 3rd:1.000, 4th:0.696. Rev.:2.290
What is the final drive ratio & Kembara tire size ?

This post has been edited by sam_01: Oct 25 2010, 09:04 PM
V12Kompressor
post Nov 7 2008, 12:41 AM

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QUOTE(sam_01 @ Nov 6 2008, 10:15 PM)
There are lots of webites that can do the calculations. You can find your tyre circumference HERE.
Or you can take a measuring tape and measure your tyre circumference yourself if you want to be really sure  smile.gif


Added on November 6, 2008, 10:24 pm

What is the final drive ratio & Kembara tire size ?
*
OK. Now I get it. So you basically convert it into inch and x 25.4.

BTW, Kembara 4AT final gear ratio is 5.857
Tyre size is 205/70 R15

BTW, took the hassle to calculate 110 @ ? rpm for Kembara. Answer turns out to be 3,505 rpm. rclxm9.gif
sam_01
post Nov 8 2008, 01:44 AM

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QUOTE(V12Kompressor @ Nov 7 2008, 12:41 AM)

BTW, Kembara 4AT final gear ratio is 5.857
Tyre size is 205/70 R15

BTW, took the hassle to calculate 110 @ ? rpm for Kembara. Answer turns out to be 3,505 rpm.  rclxm9.gif
*
Thanks!
Pretty huge reduction at final drive.....1 tire rotation equals 4.076 engine revs.


V12Kompressor
post Nov 8 2008, 11:46 AM

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So fun man. Maybe I should be calculating 110km/h @ ? rpm during my past times. XD

Some I got:

Lamborghini Gallardo e-gear 110km/h @ 2,730 rpm (not LP version)
Lamborghini Murcielago 6MT 110km/h @ 2,040 rpm (not LP version)

This post has been edited by V12Kompressor: Nov 8 2008, 11:50 AM
J1@l_ l_l l\l
post Aug 26 2009, 09:56 PM

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QUOTE(sleepwalker @ Aug 1 2008, 10:33 AM)
Which part of 'fixed RPM per km/h' that you don't quite understand? It's a constant and not a variable as the gear ratio is fixed per gear.
*
Yupe, agree with U, but tht would be for manual transmission it has fixed gear ratios n most importantly it's a direct drive, thus the factor between vehicle speed n engine for each gear is a constant.

But do U think the same applies to automatic transmission which is using non direct drive but torque converter instead, not to mention bout those auto trannies with lock up clutch tht most of the vehicle r using nowadays.

How bout CVT which might generate minor friction between it's pulley n it's drive belt/chain? rolleyes.gif
k!nex
post Aug 26 2009, 10:27 PM

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Honda City Type-Z 2001 (4AT)

110km/h at 2900rpm
120km/h at 3100 rpm
ZeroSP
post Aug 27 2009, 01:19 AM

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Honda City 2009 i-VTEC (5AT)

100KM/H at 2000 RPM
120KM/H at 2500 RPM
140KM/H at 3000 RPM
J1@l_ l_l l\l
post Aug 27 2009, 01:30 AM

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QUOTE(ZeroSP @ Aug 27 2009, 02:19 AM)
Honda City 2009 i-VTEC (5AT)

100KM/H at 2000 RPM
120KM/H at 2500 RPM
140KM/H at 3000 RPM
*
S (with smaller wheel) or E (with bigger wheel)?

Planning to get 1? Any comment? Hows d accereration after 120km/h?
NewAchiever
post Aug 27 2009, 08:48 AM

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Mine almost RPM 3000 ~ around that or either slightly less or more
Must go and check it out again

(Proton Saga BLM 1.3 Auto)

This post has been edited by NewAchiever: Aug 27 2009, 08:48 AM
TSjoanalooidog
post Aug 27 2009, 09:39 AM

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oh............updated
SleeplessEyes
post Aug 27 2009, 09:46 AM

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QUOTE(ZeroSP @ Aug 27 2009, 01:19 AM)
Honda City 2009 i-VTEC (5AT)

100KM/H at 2000 RPM
120KM/H at 2500 RPM
140KM/H at 3000 RPM
*
OMG shocking.gif the 140Km/h RPM revs is even lower than City CVT IDSI

This post has been edited by SleeplessEyes: Aug 27 2009, 09:57 AM
karhoe
post Aug 27 2009, 11:18 AM

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Toyota SEG 1.6 AE101 Manual - 3200rpm @ 110km/h

This post has been edited by karhoe: Aug 27 2009, 11:18 AM
ZeroSP
post Aug 27 2009, 12:33 PM

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QUOTE(J1@l_ l_l l\l @ Aug 27 2009, 01:30 AM)
S (with smaller wheel) or E (with bigger wheel)?

Planning to get 1? Any comment? Hows d accereration after 120km/h?
*
E-Spec... The full spec with 16' rims...

Acceleration is decent until 165-170 for me... As I experienced few times in long KESAS drive... Never tried to go pass that, and do it when the road is quite free la of course...


Added on August 27, 2009, 12:34 pm
QUOTE(SleeplessEyes @ Aug 27 2009, 09:46 AM)
OMG  shocking.gif  the 140Km/h RPM revs is even lower than City CVT IDSI
*
Ya I suppose... I also got a City CVT, but VTEC... 140 I can get at 3200RPM...

This post has been edited by ZeroSP: Aug 27 2009, 12:34 PM

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