is this right.....200rpm

[VL Berlina 5speed]

i was coming bak from the sa cruse on sunday and i was driving down the princes highway, i was sat a 110km/h and popd it to neutral as i was low on fuel and all of a suden my revs dropd down.
it usally sits on 1000 rpm in nutral when stationary, but when i was moving at 110km/h it went down to 200rpm.......
could this be caused by my custom CAI working to well and over choking the engine with to much air?
and wouldnt ur throtal stop all the air geting into the engine and not let it choke it?

any ideas as im confussed. im not botherd by it as i dont normall do this but i was just confessed and stund that i all most stalled my car in neutral at 110km/h

[bitch]

no acclerator at 110 it will drop to just under 1000 but 200 thats low!!????

[My Car Pwns]

Ashley Auto Wreckers? i've been there
Maidstone? dont u mean sunshine / braybrook? itz off sunshine ave yer?

[fitzy2005]

change your signiture mate, it point to Edit Vbgarage lol and its way to big ! and no car should idle that low

[DenchY]

at that speed u could be gettin a 'ramair effect' and that would make it run lean and a lower rpm?

[VL Berlina 5speed]

Ashley Auto Wreckers? i've been there
Maidstone? dont u mean sunshine / braybrook? itz off sunshine ave yer?

WTF think ur in the rong topic....

yah thats wat i was wondering 200rpm is way too low, could it be my throtal is stuffd and leting all the air in

[VL Berlina 5speed]

at that speed u could be gettin a 'ramair effect' and that would make it run lean and a lower rpm?

thats wat i thought origanal, i lookd at my air filter and there was a black ring above the cai part in the box so its worknn very well it seams.
but shouldnt the throtal stop it????

[megee83]

the black ring is jus because the cai is aimin all the air/dust at that spot on the filter, so because your not runnin air evenly through the whole panel that spot above the cai will be noticably darker.
i dont think that to much air is the cause what your sayin, because when your in gear an cruisin along at 110 basically the same amount of air is comin into your engine an it runs fine...? theres no difference to the process goin on inside you engine whether you are at 200 revs or at redline, its jus happening faster. it might jus be one of those momentary glitch type things, unless it keeps happenin i wouldnt worry yourself about it.

[Bax]

The throttle would stop it. Pretty weird that its done that, really shouldn't if your doing that speed, tacho must be wrong. For it to be 200 at 100+ you'd nearly have to be idling and choking the engine. In fact I'm fairly sure the engine would just about die at that speed.

Cluster sounds wrong.

[NORTI]

& fix ya sig link to vbgarage!



D.

[My Car Pwns]

i aint in the rong topic.. u n00b lol.. if u look at the signature comin from (b i t c h)

[VL Berlina 5speed]

i aint in the rong topic.. u n00b lol.. if u look at the signature comin from (b i t c h)

lol
mybad
so any 1 changed it yet so it says i have a shit box vl, lol


yah bextor and meege this is happening in nutral with me not touching the accelorator, but when im in gear (5th) it sits on 2000rpm at 110kmh,

could there b that much air getting forced in that its pushing the throtal open?
coz if u think about it the air must b hiting the throtal at 70kmh+ after its been direct though the intake.

[Bax]

Oh, 2000rpm. Thats fine.

The more air generally means the faster your engines going to go, so, the higher it will rev.

Doesn't sound too out of the ordinary. If your getting air rammed in it should rev higher if anything, but not enough to notice.

[My Car Pwns]

did it just go to 200 rpm that one time? has it happened since?

[VL Berlina 5speed]

did it just go to 200 rpm that one time? has it happened since?

nah, i tryd it to show my dad and it did it then to, doing bout 100kmh when was in gear the revs were 2000rpm but when i put it in nutral the revs startd to drop and sat on bout 250>300rpm....

to me i think the tb is stuffd wat do us think?

ill try and get a mate to take a pic of this when i get time 2.

[Bax]

I'm still a little confused as to how your going about all this, if your going from 200km/h and then switching to neutral with no revs.. Then its probably just a sign of your afm starting to die.

Thats usually what goes when you slow your car to a stop, put it in neautral and have it drop down and nearly stall.

[Jules86]

i was coming bak from the sa cruse on sunday and i was driving down the princes highway, i was sat a 110km/h and popd it to neutral as i was low on fuel and all of a suden my revs dropd down.

For ppl out there with auto's i would not advise dropping it in to neutral when travelling. It stuffs up the gearbox (eventually).

[VL Berlina 5speed]

I'm still a little confused as to how your going about all this, if your going from 200km/h and then switching to neutral with no revs.. Then its probably just a sign of your afm starting to die.

Thats usually what goes when you slow your car to a stop, put it in neautral and have it drop down and nearly stall.

ok
im sat in my car in the right seat.
going down the highway at 110kmph, in 5TH gear, revs are at 2000rpm (normal)
come to a down hill part.
pull the stick bak and into netral and lift the clutch and no accelration
revs drop to idal speed 1000rpm
then they start to drop and fall down to 200rpm
then im like WTF and put it bak into 5th and dont try it again

the afm is new, im pritty sure. had it for 3 monuths since i got the engine and trans swap

[VL Berlina 5speed]

For ppl out there with auto's i would not advise dropping it in to neutral when travelling. It stuffs up the gearbox (eventually).

yah good tip ppl think it save fuel but when u have to pay for the box 2 get fixd it equalls out the few buks the netral saved u

[fitykemp]

i reckon its just like a computer overload. bare with me! think of it this way, ur air flow meter is registering a shit load of air flowing, speed sensor sais your doin 110kmh and your throttle body isnt even open! so you injectors would be injecting enough for idle but your computer thinks you have X amount of air flowing. things wouldnt match up

[VL Berlina 5speed]

i reckon its just like a computer overload. bare with me! think of it this way, ur air flow meter is registering a shit load of air flowing, speed sensor sais your doin 110kmh and your throttle body isnt even open! so you injectors would be injecting enough for idle but your computer thinks you have X amount of air flowing. things wouldnt match up

but aint the injectors ran by the computer and the sence of all there air would make it inject more fuel to get the mixture to run.?
or the injectors could b running at idal speed and the exesive air could b chocking it (leaving fludded with air). BUT this gets me more confussed coz wouldnt the throtal stop all the excesive air getting in??????????

[fitykemp]

the throttle butterfly will still be open a lil bit for idle, and the air preasures would be pushing through the gap with force. i reckon the computer is just not designed to run at idle when doing such speeds, it probly gets more confused than you are! if it idles fine at the lights etc then you dont have anything to worry about

[Bax]

i reckon its just like a computer overload. bare with me! think of it this way, ur air flow meter is registering a shit load of air flowing, speed sensor sais your doin 110kmh and your throttle body isnt even open! so you injectors would be injecting enough for idle but your computer thinks you have X amount of air flowing. things wouldnt match up

I think you could be dead on there actually. AFM only works under a certain RPM and then the ECU maps take over as far as I'm aware, by putting it in by getting back to Neutral your car would go back to the AFM, but seeing as it would be thinking lots of air would be coming in your ECU would be dumping in a heap of fuel, so you'd be flooding your engine with fuel, choking it making it want to stall.

Lets stick with that.

[VL Berlina 5speed]

I think you could be dead on there actually. AFM only works under a certain RPM and then the ECU maps take over as far as I'm aware, by putting it in by getting back to Neutral your car would go back to the AFM, but seeing as it would be thinking lots of air would be coming in your ECU would be dumping in a heap of fuel, so you'd be flooding your engine with fuel, choking it making it want to stall.

Lets stick with that.

sounds right, ill just stick with that awnser, cheers bex, fitykemp and other ppl for the help

[VL Berlina 5speed]

well ive got the awnser
not long ago i built a custom CAI out of pvc, this CAI has workd so well that when i was traveling 2 day at 80ish it blowed the elements of the AFM. i didnt notace this till i got home and left the car to cool down for hour and half. decided to check the engine and tune it up and it wouldnt start splutering. then it turnd over and it backd fired in the intake.... smoke everywhere.
qucikly stripd the intake of and box off to find my xpensive k&n filter was still good and there wasnt visable damage. i leted the intake air out for 5minutes before i notaced the afm was frid, so i reassembled it witha spare AFM of my old car and tryd again. suck sess no flat spoting any more and revs didnt drop..

so now im going to get a cap for the end of my CAI and drill holes in to it, so it slows down the air geting ramed in so this dosnt happen again.

cheers all taht helpd, and i hope i could be usefall as use were 2me in the futere