High revs 'flares' on Corsa S

hubert_cumberdale

just asked my friend at vauxhall and he said hes seen it on the VXR's and it was always said that it was to ensure that all the fuel residue is burnt ready for the next part of accelerating to ensure there is no hesitation

sound like a load of BS to me

Calvin_H

hubert_cumberdale wrote: »

just asked my friend at vauxhall and he said hes seen it on the VXR's and it was always said that it was to ensure that all the fuel residue is burnt ready for the next part of accelerating to ensure there is no hesitation

sound like a load of BS to me

I was told that same thing many times at the dealership. Sounds like a load of BS to me too. Do Vauxhall have a problem here?.

anotherbaldrick

Calvin_H wrote: »

I was told that same thing many times at the dealership. Sounds like a load of BS to me too. Do Vauxhall have a problem here?.

Reading a thread on another forum re this, mention was made of a switch on the clutch??? something to do with cruise control

hubert_cumberdale

they are saying that the switch tells the ecu to up the revs before the gear change still sounds a bit queer to me

Rossy.

Calvin_H wrote: »

I purchased a brand new Corsa S from a well known vauxhall dealership in march 2010. After a few weeks I found that I was getting high revs, described as 'flares' when changing up through the gears.After six long months of the car going back and forth to the dealership and vauxhall it was replaced for a new one. I now have the same problem with the new one.

Is this a problem with modern engines?. I am getting as high as 1000 extra revs when going from first to second gear.

I would like to know if anyone else has ahd this problem, or is it just me.

Calvin_H wrote: »

Changing up from first to second the revs counter go up another 1000 revs. The corsa that this one replaced was even worse. Initially the cars were driving perfectly, then after a few weeks we get this problem.

Calvin_H wrote: »

After forty years driving?. this looks like the old dogs and new tricks theory

After 40 years i'd expect someone to know that rev's = per minute

so if your throttle counter increases when you change, unless it takes you a whole minute to change gear then i expect the engine isn't actually giving you 1k of extra revs

anotherbaldrick

so if your throttle counter increases when you change, unless it takes you a whole minute to change gear then i expect the engine isn't actually giving you 1k of extra revs

I read the OP post to mean that when he pushes the clutch in to change gear the rev counter reading rises unprovoked by 1000 or so. ie say from 800 to 1,800 rpm, How did you construe it then.

hubert_cumberdale

i read it like that as well

if it takes a car 1 minute to increase revs by 1000 none of us would ever get anywhere lol

Rossy.

anotherbaldrick wrote: »

I read the OP post to mean that when he pushes the clutch in to change gear the rev counter reading rises unprovoked by 1000 or so. ie say from 800 to 1,800 rpm, How did you construe it then.

He stated that when he changes gear his car gives him an extra 1k of revs.

an extra 1k of revs would take 1000 revolutions of the crankshaft and take 60 seconds.

I never construed anything just pointed out the basics

Rossy.

hubert_cumberdale wrote: »

i read it like that as well

if it takes a car 1 minute to increase revs by 1000 none of us would ever get anywhere lol

If you drive down the road at 2k rpm

it would take 2,000 revolutions to to have completed 2k

that would also take one minute to complete.

A rev counter does not mean that as soon as your at 2k then you've just done 2k rpm

R - Revolutions
P - Per
M - Minute

hubert_cumberdale

yes but effectivly the engine is now doing 1000rpm more

same as if you went from 20mph to 30mph you would say your not becuase you havent gone 30 miles yet

M - Miles
P - Per
H - Hour