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Author Subject: BMC Induction kit
xaero1

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Location: Edinburgh

Registered: 31 Aug 2009

Posts: 835

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Post #1
Hi Fellas,

I bought my Rallye with a BMC induction kit fitted (not sure what spec) but it basically looks like a narrow dustbin sticking out the bottom of the car LOL

It sounds good and has a lovely rumble when you press more than half way on the accelerator, but I wonder if it's hampering the performance a little.

I ask because it seems if I'm accelerating lightly without the "rumble" then floor it, it seems like the car bogs down a little before it starts picking up again.

Does anyone else have one fitted and do you find the same thing?

Do you really see any kind of performance benefit with the kit installed?

Cheers

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Posted 26th Oct 2009 at 20:52
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topshot_2k

Seasoned Pro

Location: Northampton

Registered: 09 Feb 2005

Posts: 1,552

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Post #2
BMC should be better than standard as it has less heat soak and direct air feed. Is it a genuine one? do you have a air feed on it?

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Posted 27th Oct 2009 at 02:27
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funscott

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Location: edinburgh / dunfermline

Registered: 17 Jul 2007

Posts: 1,723

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Post #3
airfeed required. if its bogging down usually bad airflow.

mine is pritty quiet with the airfeed on until you hit the loud pedal. I dont bog down.

is it the correct bmc? it should be the 85 - 150 version (2.0l engines)

from your desciption it sounds like you havent got an airfeed fitted and it sitting low ready to suckup water and lock your engine

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Posted 27th Oct 2009 at 02:31
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xaero1

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Location: Edinburgh

Registered: 31 Aug 2009

Posts: 835

Status: Offline
Post #4
Sorry guys new to induction kits. What does the air feed look like?

ta

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Posted 27th Oct 2009 at 03:16
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lwgti-6

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Location: Nottinghamshire

Registered: 27 Oct 2008

Posts: 906

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Post #5

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Posted 27th Oct 2009 at 05:41
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xaero1

Senior User

Location: Edinburgh

Registered: 31 Aug 2009

Posts: 835

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Post #6
Thanks, I took some photos of the kit currently fitted, does this look right? The last shot is taken from underneath the car of course.





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Light travels faster than sound. That's why some people appear bright until you hear them speak.
Posted 27th Oct 2009 at 17:02
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lotek

Seasoned Pro

Location: Berkshire

Registered: 04 Dec 2007

Posts: 6,107

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Post #7
thats exactly how mine is, you need a cold feed , so do i
Posted 27th Oct 2009 at 17:15
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adam b

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Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

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Post #8
Why does it need a cold air feed? There will be shit loads of cold air enjoying itself down by the gearbox there, just waiting to be sucked up into the engine. Thats where my slightly custom/bodged K&N sits and I don't seem to have heatsoak issues. Not noticeable ones anyway - its not a blinking racetrack!

Filter looks pretty dirty - your problem could also be a sensor, say the TPS.

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Posted 27th Oct 2009 at 17:38
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funscott

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Location: edinburgh / dunfermline

Registered: 17 Jul 2007

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Post #9
is that not the smaller BMC? how did you get the normal pipe on and keep the battery breather in place? not to mention there seems to be a big gap between the BMC and the clutch cable.

also it does look manky.

mine just fits between the clutch cable and the undertray.

ps whts the pink crap running down the side of it?

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Posted 28th Oct 2009 at 00:05
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topshot_2k

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Location: Northampton

Registered: 09 Feb 2005

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Post #10
that looks like small bmc and the filter is filthy!!!

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Posted 28th Oct 2009 at 00:44
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anth

Seasoned Pro

Location: Colchester

Registered: 04 Apr 2006

Posts: 3,651

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Post #11
If you get a cold air feed il have the original bit of pipe thats over hanging the slam pannel Smile If you want to sell it to me
Posted 28th Oct 2009 at 11:57
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rubba dubz

Junior User

Location: Cornwall

Registered: 27 Sep 2009

Posts: 85

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Post #12
have the filter cleaned as its looking pretty dirty that way you will allow air to travel through it more freely, ive got a BMC on my 6 and had the main air pipe replaced by samco which helped with increased airflow cost
Posted 28th Oct 2009 at 22:17
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gti-dan

Regular

Location: Yorkshire

Registered: 03 Jan 2010

Posts: 461

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Post #13
resurecting an old thread here but is that right to have the air filter down there - seems like asking for probems with dirt and water. Should the air filter not sit infront of the throttle body like most air filters on other cars? with a cold air feed bringing air through say the bumper and up to the filter????
Posted 3rd May 2010 at 15:41
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gti-dan

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Location: Yorkshire

Registered: 03 Jan 2010

Posts: 461

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Post #14
resurecting an old thread here but is that right to have the air filter down there - seems like asking for probems with dirt and water. Should the air filter not sit infront of the throttle body like most air filters on other cars? with a cold air feed bringing air through say the bumper and up to the filter????
Posted 3rd May 2010 at 15:43
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gtomi-6

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Location: southampton

Registered: 16 Jan 2009

Posts: 1,136

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Post #15
if its sat up[ by the throttle body you will get alot of heat soak plus i doubt you would fit it in. where it is currently sat is perfect but i would have a cold air feed on it if it was mine.

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Posted 3rd May 2010 at 21:35
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allesclar

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Location: Sheffield

Registered: 17 May 2009

Posts: 4,254

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Post #16
personally i would get some venting and do a 180 degree upturn and connect it to the orignal air intake.

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Posted 3rd May 2010 at 21:44
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gtomi-6

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Location: southampton

Registered: 16 Jan 2009

Posts: 1,136

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Post #17
allesclar wrote:
personally i would get some venting and do a 180 degree upturn and connect it to the orignal air intake.

best idea o have got this instore for mine

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ph3 gti-6 china blue- mint condition
ph2 gti-6 nile blue K.I.A dec 2010
Posted 4th May 2010 at 01:34
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