Yet Another Airbox Mod thread sorry

[Envy]

Did this yesterday and I have to say what an improvement in pulling away in first gear not to mention the change from 1st to 2nd. So much smoother, I was generaly suprised by the difference.

For the last year of owning the car I have had a small problem with loss of power (only for a split second) when pulling away in 1st. I would never know when it would happen but caused me a lot of grief at roundabouts with people behind me wanted to go.

Since removing the top funnel I have done a 120 mile stop start trip and so far no loss of power at all. I would have normaly got it several (if not more) times as I do the same trip each day.

Also the car in its self seems smoother to drive oddly enough.

Im still on 38.1 mpg (1.8 vvt)

All in all im very happy with it so far.

[KeeronMac]

Did the mod myself, I have a 1.9 cdti (120), big difference, not so much in the lower gears but 4th, 5th and 6th gears have a lot more power, much smoother through all the gears too, quite surprised by the results actually :)

[spennny]

Gonna do this, where is the link ?

[KeeronMac]

Just take open up the airbox, you'll have to disconnect the air hose etc, pretty straight forward. When you have the box opened up you will notice a little bit of plastic at the bottom, you just pull that out. Mine was well stuck in so it was a hammer and chisel job, thats it ;)

Here's the how2 anyway :) http://www.vectra-c.com/forum/showthread.php?t=15122

[paul_sri150]

I done this a while back, funnel seems to restrict you using all of your filter, with it removed, allows all of filter to be used. For even better results put a k&n panel filter in place of your standard paper one and have a look at the '2nd' airbox mod which can be done, i done this on mine and had a improvement again from the 1st mod

[daveypower]

I done this a while back, funnel seems to restrict you using all of your filter, with it removed, allows all of filter to be used. For even better results put a k&n panel filter in place of your standard paper one and have a look at the '2nd' airbox mod which can be done, i done this on mine and had a improvement again from the 1st mod

whats this 2nd airbox mod?? anyone know?

[Whisky]

Isn't there 2 trumpets, one in the bottom housing and one in the top? I thought the 2nd mod was removing the top one?

[KeeronMac]

2nd mod requires drilling holes in the airbox

[daveypower]

2nd mod requires drilling holes in the airbox

ah ill leave that then so, just an increase in noise:cool:

[KeeronMac]

Here's the link http://www.vectra-c.com/forum/showthread.php?t=134063&highlight=airbox

I'll not be doin it anyway, gonna have go at this brakepad sensor now, wish me luck!:eek:

[daveypower]

Here's the link http://www.vectra-c.com/forum/showthread.php?t=134063&highlight=airbox

I'll not be doin it anyway, gonna have go at this brakepad sensor now, wish me luck!:eek:

goodluck:Pray::Pray:

[paul_sri150]

http://www.vectra-c.com/forum/showthread.php?t=129437&highlight=airbox+deux

thats what i done

increased airflow into system, louder induction/turbo noise and a slight lift off noise too

[KeeronMac]

Paul that is interesting, I would be very tempted to give that a go, especially if it improves my mpg

[Al 22 dti]

What about the top trumpet thing?

Mine looks to be a smaller diameter at the end so I'm sure that if it's cut out it will help it breath better or am I wrong.

[Big Dave]

What about the top trumpet thing?
.

IIRC, previous posts have mentioned to leave alone.

[Vectra_C_Chris]

GSi wise. Never noticed a difference either removing the trumpet, drilling holes or Podding it. Still, happy with the pod purely for the sound.

[GazCDTI150]

Destroying the airbox? I'll stick with the normal mod.

Gazza4