Thorney Motorsport Custom Remap

[Bealo]

Mines been removed for about 2 months now and i never noticed any difference in low speed running. :thumbs:

[Windowlicker]

Windowlicker, i think you've read into what Nigel has said wrongly.

He said that there was adequate airflow and no air restriction for low range rpm, he said nothing about higher rpm's, and nothing about the design of the airbox, the conversation is competely about the reason for the flap - low noise at low rpm.

Fair enough rich, but 6000 rpm isnt exactly low is it? and as the flap doesnt open until then in non sport mode, i assume there is adequate flow until that point,
I guess as my original point in the question ,related to whether any one in the know, could Definitively state that there is no issues at all in removing the flap , we then get 2 tuners with a different viewpoint, one says marginal fueling issues, (marginal as in wont really matter so dont worry about it, though they dont remove the flap on their own development car running 400 hp) another saying no issues whatsoever and it has no function but noise deadening.
Not exactly crystal clear.

[RichW]

I would assume the reason that the flap doesnt open until 6000rpm in non sport made is because it is trying to do what it is designed to do - i.e. keep the engine note down, above 6000rpm the engine obviously needs the wider intake so BMW had no option but to program it to open at that point.

Lets not forget either, theres alot of difference between adequate and ideal, which is why it opens at 3500rpm when sport mode is on.

[glendog74]

CSLRegister.com by-law 37b. :smt027

All members who have not done so already, must go and remove their flap IMMEDIATELY! :smt075

Hear hear! Get rid! :smt074

[SpineOnABap]

I guess as my original point in the question ,related to whether any one in the know, could Definitively state that there is no issues at all in removing the flap

It's not an issue.

Members of sites that have been around since CSL day#1 have been running 'flap-less' for many, many years. If there ain't many on here it's because this site, with respect, was about 5 years too late :thumbs:

[Windowlicker]

I would assume the reason that the flap doesnt open until 6000rpm in non sport made is because it is trying to do what it is designed to do - i.e. keep the engine note down, above 6000rpm the engine obviously needs the wider intake so BMW had no option but to program it to open at that point.

Lets not forget either, theres alot of difference between adequate and ideal, which is why it opens at 3500rpm when sport mode is on.

As far as i was aware sport mode isnt an increased power map, it just changes throttle response and opens the flap sooner, so if its not ideal at say 4500 in sport mode, then surely the same applies for normal mode???
I thought buying one of these would stop my head popping like it did with the evo :hahaha: its still making it hurt :banghead:

[glendog74]

Widowlicker - you think too much man! :hahaha:

[Windowlicker]

Widowlicker - you think too much man! :hahaha:

I highly resemble that remark!! :whistle: :-D

[RichW]

As far as i was aware sport mode isnt an increased power map, it just changes throttle response and opens the flap sooner, so if its not ideal at say 4500 in sport mode, then surely the same applies for normal mode???
I thought buying one of these would stop my head popping like it did with the evo :hahaha: its still making it hurt :banghead:

In sport mode when the throttles open faster, then they will need air faster, hence the flap been open?

I think your worrying about something that is irrelevant too :-D

[shimmy]

now we are all guessing i think!

:thumbs:

[Jaw_F430]

I would say leave it on unless you are having problems with it :thumbs:

I use my CSL everyday and it is nice to have the option to 3500rpm or 6000rpm :hahaha:




I have had similar conversations with people removing the flap from the John Cooper Works Airbox on the Mini Cooper S. People remove it just to get the noise from lower rpms as that opens at 4500rpm (I have left mine on though). Again it is for noise regs

[Mark CSL]

Why do people remove it. When it stops working get bmw to fix it :hahaha:

Its free with bmw warranty or is it just me :whistle:

[E46ACS]

To be honest, I'm happy to leave mine on.

I like the option to suit my mood. When I want the NOISE, I push the Sport button.

A lot of the time i'm happy to run in non-sport mode, and "treat" myself (& others :wink: ) to the Sport mode.

[SMD]

My Airbox Flap motor didnt brake i just wanted to remove it! Induction noise all the time! :notworthy:

[karbonkid]

To be honest, I'm happy to leave mine on.

I like the option to suit my mood. When I want the NOISE, I push the Sport button.

A lot of the time i'm happy to run in non-sport mode, and "treat" myself (& others :wink: ) to the Sport mode.

Same. :-D