shift point for daily driving

[stormridah]

hey guys,
just wondering when do you shift gears? this is for daily driving not vtecing everywhere :D

I shift at around the 2.5 - 3k rpm mark

what about u guys?

[Flanderz]

yeah sounds about right im more like 3 - 3.2 But older engine & no vtec for me :(

[civicboy]

ye bout d same

[VTECACCORD]

4 - 4.5K

only cause its a type R and i got anothe 4 to go. so halfway i figure

[z3lda]

granny shiftin at 2.5-3k will save heaps of petrol. i am able to get 300k's out of 20ltrs

[dc2dc2dc2]

please...tell me how this is integra specific ? *move to lounge please*
yeah..i shift around 3rpm.

[kOncept]

maybe he's only interested in shift points for integras???

3.5k-4k rpm

[dc2dc2dc2]

stupid questions get stupid answers. Im sure u did pass ur driving test, and u do know when to change gears. -_-"

[stormridah]

yeah i was thinking for integras in general mainly vtirs

[Felix]

around 3.5

[bubblecivic]

Anywhere between 3-4...

[CJL]

4k or so

[ProECU]

redline allday, everyday

[yourfather]

lol u mad man

[typsy]

about the 3k line sounds right. saves you heaps of petroel as well. i can get 400kms from a full tank of Optimax.

[frozenchook]

5k everyday :D

[IRI]

redline allday, everyday

:wave: :D

[string]

Shifting earlier will not save you fuel.

The only time I ever make special effort to shift early is when cold, then I shift around 3,000rpm. When warm though, its anywhere from 3,000 to 5,000.

Saving fuel consists of accelerating slowly, and minimising slowing down and stopping, not optimising shift points.

Fuel usage is a function of power, not rpm.

[Max Power]

Shift around 3-4k during daily driving :)

[tRipitaka]

my ECU does the shifting for me..

[z3lda]

Shifting earlier will not save you fuel.

The only time I ever make special effort to shift early is when cold, then I shift around 3,000rpm. When warm though, its anywhere from 3,000 to 5,000.

Saving fuel consists of accelerating slowly, and minimising slowing down and stopping, not optimising shift points.

Fuel usage is a function of power, not rpm.

so your saying at 7000rpms its pumping the same amount of fuel as would be at 1000rpm ...... :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:

[string]

so your saying at 7000rpms its pumping the same amount of fuel as would be at 1000rpm ...... :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:
So your saying that you use your accelerator as an on/off button?

To put out the same power, my car will use LESS fuel at 5,000rpm than at 3,000rpm, due to the fact that peak efficiency (torque) is around 5,500.

Please learn a few basics about how an engine works before you say things like this.

[itsuka]

4 - 4.5K

only cause its a type R and i got anothe 4 to go. so halfway i figure

same here i shift at 4, cause 3 is too slow and 5 is too loud, 4 just rite for me and my itr as well

[z3lda]

ok....i dont know where u got the on/off button from, but yes. i am sorry. u are master. i shall bow down to your majesty. -kneels-

[IRI]

ahaahaha neil kneels LOL

[string]

ok....i dont know where u got the on/off button from, but yes. i am sorry. u are master. i shall bow down to your majesty. -kneels-
Lets see...

You were insinuating that at 7,000 rpm, fuel usage is more than at 1,000rpm....

This will be true if you are at a constant throttle position at both levels, but obviously, in these two different situations, power output will be vastly different.

In my very first post, I said that fuel usage was proportional to POWER OUTPUT, not RPM.

I can floor it at 1,000rpm and use more fuel than some situations at 7,000.

If you are accelerating at the same rate, then it doesn't really matter what rpm's you are using (as long as you are not in a range where torque is dropping off immensly) you will still get pretty much the same fuel economy.

[dc2dc2dc2]

ok....i dont know where u got the on/off button from, but yes. i am sorry. u are master. i shall bow down to your majesty. -kneels-

:rolleyes:

[[[d a n n y]]]

i dont use a economy shift point
but i only use 10% throttle

[kousoku]

i wouldn't shift to much earlyer then 3k-3.5k, any lower you put to much stress on your engine when going up hills ect. =D
3.5-4k is perfect.

[_CiVIC_]

2.5k - 3.5krpm.. just for comfortable driving, not because of saving fuel, just so i don't get slammed in my seat once vtec kicks in LOL

[ITRBoI]

4 - 4.5K

only cause its a type R and i got anothe 4 to go. so halfway i figure

:thumbsup: :thumbsup: :thumbsup: me too but sometimes 5

[type one]

when i had the R usually about 5.

Now i got the Civic around 3.5.

[LAGOOT]

i shift round 2.5K - 3K everyday.
with the occasional 'squirt' ;)

[ACTI0NMAN-1]

3.5k - 4k

[ProECU]

So your saying that you use your accelerator as an on/off button?

To put out the same power, my car will use LESS fuel at 5,000rpm than at 3,000rpm, due to the fact that peak efficiency (torque) is around 5,500.

Please learn a few basics about how an engine works before you say things like this.

FACT: your car will not use less fuel at 5000rpm than at 3000rpm assuming constant vacuum.

edit: I just read post 26 and you do have the concept correctly understood.

[|N|]

i dun go past 4k... coz the car has too much powerrrrr... i ll just be stuck on the seat

[pgclee]

too much power means? hehe...




i dun go past 4k... coz the car has too much powerrrrr... i ll just be stuck on the seat

[bennjamin]

i rev my car to about 2.5-3k max during 80% of driving ( statistically most statistics are made up:D) - seriously i try to get into 5th gear as soon as ASAP. Car still moves and has enough torque to go anywhere . 3rd gear is only a shift away if need be.

ALSO - *our* hondas have disengaging injectors at speed yes ? That is , sitting above say 70 or 80 km/h , and the accel. is let off the car runs on momentum alone ( as the injectors are turned off) ??/

[|N|]

too much power means? hehe...

in other words my car is too fast lol....


coz i usually just get to 6th gear as fast as i can... ofcoz 1 at a time.... keepin the rev low and acc. at a slower speed
m i doin the right thing on savin fuel?

[ProECU]

ALSO - *our* hondas have disengaging injectors at speed yes ? That is , sitting above say 70 or 80 km/h , and the accel. is let off the car runs on momentum alone ( as the injectors are turned off) ??/

Not exactly...

The ECU controls the injector, ie cuts fuel delivery under certain conditions, ie sudden backing off the Throttle ie 0% throttle.
Under cruise conditions, injection still occurs, however the ECU trims it to a leaner condition

[string]

The ECU adjusts to stoich a/f levels of 14.7:1 not for economy but for emissions.

If you want to fail emmisions testing you could tune partial throttle to around 12.8:1 which in theory produces the largest peak cylinder pressure.

[Spoon-Accord]

i shift around 2k..
works the treat :D

also.. fuel millige is great!!
even tho some people go.. 2k?? and it revs up to 8?? ur joking?
i think i got lower end torqe..

[string]

in other words my car is too fast lol....


coz i usually just get to 6th gear as fast as i can... ofcoz 1 at a time.... keepin the rev low and acc. at a slower speed
m i doin the right thing on savin fuel?
Getting to 6th as fast as possible isn't really doing any good, but accelerating at a slower rate is, it is really where the money is.

Good job on possibly being the first person in this thread to realise this! :thumbsup:

[iwkyb]

3 - 4k for me
but will red line if traffic condition allows and when car is warmed up
(be true to your self, this is why we are driving sports car ain't we?)
no point saving $5 of fuel if I have to drive like old grandmas on the road.

and for the fuel issue at different RPM

Assuming you are going in the same speed and throttle possition

travelling at 80km at 3rd gear 4000RPM uses MORE fuel
compared to 80km at 5/6 gear 2200RPM due to gear ratio

therefore, if acceleration is not required, always run on higest gearing

p.s. i am doing around 420 - 460km with 3/4 tank

[aimre]

Yeah accel slowly is the way to go..... if i accel to quick, time dialation oocurs and ppl outside my frame of refrence (my car) begin to age quickly


So if ur going down a hill, at zero throttle, there no fuel going in the engine???

[Poeter]

3 - 4k for me


Assuming you are going in the same speed and throttle possition

travelling at 80km at 3rd gear 4000RPM uses MORE fuel
compared to 80km at 5/6 gear 2200RPM due to gear ratio




Probably uses more fuel because of the engine braking factor as the resistive force?

Well, i used to shift at around 3k and i rarely used 5th gear. For that pattern my jazz gave me 7.5l/100km.


Now, because of soaring petrol prices, i now shift at around 2k and use 5th gear, my trip computer now reads 6.4l/100km.

The difference is clear in terms of fuel consumption but it's also obvious that the driving feel is sacrificed in exchange.

[kenshin]

3k for me

[[T][L]]

how fast do you guys usual travel on freeways??

[CONAN]

about 3.5k-4 for me

i cant imagine people who shift at 2-2.5... thats incredibly slow!

[Poeter]

yes, it is very slow.

Doesn't make much difference if you drive in peak hours all the time.

[_CiVIC_]

[L]']how fast do you guys usual travel on freeways??

umm 110km/hr +/- 5km/hr

[ProECU]

Take a look at Post#40
http://www.ozhonda.com/forum/showthread.php?p=414320#post414320

[pgclee]

changing at low rev doesn't mean you will definately save fuel...
sometime it waste more...and it can somehow damage your engine as well...

[SAWAKITA]

I shift between 3.5k - 4.5k.. sound better and smoother... I shift under 3k before but found not really using that much fuel if shift at higher rev.

[THE_MASS]

3-4k.
any time Vtec engages you know more fuel is getting pumped and at this time where fuel is $15 BUCKS A LITRE, im sure you dont wan to do that.. LOL :D

[deceivin]

where fuel is $15 BUCKS A LITRE

man, your getting rorted!! its around $1.30/L where i pour! :)

[wenshuju]

2.5 all the way. gotta qs does it waste fuel if u fully step on acc in 5th? as conpared say in 1st?

[kronjp]

all depends, if just putting around with the fam, it's 2.5 to 3 on the flat roads in traffic, perhaps even lower when it's bumper to bumper doing no more than 20km/h which makes up 60% of my driving.:-(
Price for juice in Japan is currently is about $1.80 for premium.

[xtercii]

shifting at around 3k feels good...anything lower the car feels a bit sluggish..

[xzbit]

Yep, found that shifting too low, does suck a bit of juice, so around 3.5k-4k mark for me!

[RyDC5S]

3.5-4k

[sydteg21]

3k is good point,i don't like to do it 4k in normal days,cos my exhaust makes too much noise when it is around it ,sounds like i'm racing someone

[R123]

happy that i found this thread.
got a question here guys, how long is 1st gear lasts for ur car? wot i mean how long is the torque range. like do u have to change pretty much straight away when the car is start moving? For e.g when make a turn from a start point, do u change into 2nd after the turn is done or during the turn?
When i drive mine, i felt like isnt very long at all, i pretty much have to change at 3 to 3.5, other wise the car will be sluggish. also i have to be extra gentle on the gas during a *from the start turn* otherwise jz revs too high.

Yes i am still a newbee.
many thanz
:)

[fatboyz39]

its really depends how you use your throttle i.e 20%, 50%, 100%, you can shift at 2.5-4 rpm and use alot of fuel.

Doing 60 km/hr in 5th is crazy, your just using more fuel when you need to accelerate.

For a type R, 4-4.5k is the best IMO

[TRU32U]

yeah so im always in 5th @ 60kms @15, 20% throttle, is this good or not?

[Bludger]

This thread seems so pointless to me, every driving situation requires a different amount of gas, revs, gear
POINTLESS n00b5

[dark138]

8K rpm
vtec home!

[OHH NO]

2.8-3.5k sometimes might just redline 2nd when bored :)

[djvin]

This thread doesn't seem to make any sense?!?!

I can say I change gear @ 2.5-3K all day, but I get there on WOT on each gear...

Surely thats less fuel efficient then spending the day changing @ 4k but only operating on 15-20% throttle...

I think we should all attempt to provide at least an average estimation of percentage of WOT we drive in when changing gears and traffic conditions...

There just seems to be too many factors to take into account!!

[hebe]

i go half throttle and shift before 5000rpm every single gear.

[JasonGilholme]

it does matter what RPM you shift at but it really depends on your throttle position. The throttle tells you how much petrol your throwing into the engine so if you use less throttle you use less petrol..... simple.... yeah??

[alzteg]

shifting points are relative to throttle... depending on how much lead is in your foot you can change shift anywhere from 2k-redline.

But for daily driving with throttle of 20-40% a good shift point would be from 2.5-4k rpm.

Basically you shift when after you reach maximum power output for that amount of throttle... when acceleration starts to drop.

Assuming your using a constant throttle amount.

[Cold Fusion]

i change at around....4-5 in daily driving :)