rpm/kph

**oj88** · July 25th, 2013 03:04 PM

Originally Posted by uls

so 80 at 2700?

too slow

Too slow? Maybe.

But again, irrelevant.

**CVT** · July 25th, 2013 03:32 PM

Originally Posted by iceman_uel

Ito naman sa akin. Nissan Vanette 2.0
Please Note that the Actual Speedometer reading is Off by Approximately 10kph.
Checked it with 2 different GPS device. True Speed is 115 kph at 3200 RPM - 5th gear.

81 kph at 2250 RPM - 5th Gear

What I think is it has nothing to do whether you shift early or not. It's the gear ratios of the transmission.
This is My understanding..:peace:

Thanks for posting bro.iceman_uel.....

Hindi ko matandaan iyong RPM>Speed ng Vanette ko(natin) e....

20.2K:flush:

**lowslowbenz** · July 25th, 2013 03:58 PM

Originally Posted by oj88

If you read carefully, he was doing 100kph * 3k RPM.

Oh yeah, silly me for not reading it thoroughly. IMHO, 2700 rpm * 80 kph (cruising) is just about right.

**xander1925** · July 25th, 2013 04:54 PM

Originally Posted by lowslowbenz

Oh yeah, silly me for not reading it thoroughly. IMHO, 2700 rpm * 80 kph (cruising) is just about right.

With my accent at 100km/hr 1.8k RPM. It doesnt matter if mag shift ako early or i hataw ko and paabutin ko to 3k ang rpm at 1st 2nd and 3rd gear to 6th.. Basta pag stable na ang takbo at pumatak na ako sa 100km/hr yung RPM ko will stay at 1.8k at 100km/hr... Again kahit na mabagal at mabilis ako mag shift.. basta 100km/hr my rpm is always at 1.8k

**dr. d** · July 25th, 2013 09:32 PM

Originally Posted by kinyo

^ nosebleed ako

akurin.....

**MrQ5** · July 25th, 2013 10:25 PM

speed of the car is directly proportional to gear ratio, you can not cheat actual speed for a given RPM and gear.

ex.
Toyota Innova

Gear Ratios/kph per 1000rpm
1st 3.928/7.71
2nd 2.142/14.15
3rd 1.367/21.69
4th 1.0/30.31
5th 0.851/35.62

Final drive 3.909:1
Source: Indiacar.com

Formula:
Engine Rpm / Gear Ratio / Final Drive Ratio X Wheel Circumference (Inches) X 2.54 / 100000 X 60 :

(1000 / 0.851 / 3.909 ) * 80.519 *2.54/100000 * 60 = 36.88
1500 RPM -> 55.32
2000 RPM -> 73.76
2500 RPM -> 92.2
3000 RPM -> 110.64

Source: Team-bhp.com

**dr. d** · July 25th, 2013 10:37 PM

Originally Posted by MrQ5

speed of the car is directly proportional to gear ratio, you can not cheat actual speed for a given RPM and gear.

ex.
Toyota Innova

Gear Ratios/kph per 1000rpm
1st 3.928/7.71
2nd 2.142/14.15
3rd 1.367/21.69
4th 1.0/30.31
5th 0.851/35.62

Final drive 3.909:1
Source: Indiacar.com

Formula:
Engine Rpm / Gear Ratio / Final Drive Ratio X Wheel Circumference (Inches) X 2.54 / 100000 X 60 :

(1000 / 0.851 / 3.909 ) * 80.519 *2.54/100000 * 60 = 36.88
1500 RPM -> 55.32
2000 RPM -> 73.76
2500 RPM -> 92.2
3000 RPM -> 110.64

Source: Team-bhp.com

hey, this is great!
now if we can get the figures for the MT corolla with E2 (2E?)... heh heh.

**kinyo** · July 26th, 2013 12:11 AM

Originally Posted by MrQ5

speed of the car is directly proportional to gear ratio, you can not cheat actual speed for a given RPM and gear.

ex.
Toyota Innova

Gear Ratios/kph per 1000rpm
1st 3.928/7.71
2nd 2.142/14.15
3rd 1.367/21.69
4th 1.0/30.31
5th 0.851/35.62

Final drive 3.909:1
Source: Indiacar.com

Formula:
Engine Rpm / Gear Ratio / Final Drive Ratio X Wheel Circumference (Inches) X 2.54 / 100000 X 60 :

(1000 / 0.851 / 3.909 ) * 80.519 *2.54/100000 * 60 = 36.88
1500 RPM -> 55.32
2000 RPM -> 73.76
2500 RPM -> 92.2
3000 RPM -> 110.64

Source: Team-bhp.com

those highlighted red figures are supposed to match ... but they are close enough

**MrQ5** · July 26th, 2013 12:46 AM

yes it must match, if the tyre/gear ratio your computing is the same size with the example.

but on the speedometer it will not match, as the speedometer is not accurate reflection of the car speed.