E30 M3 Alpha N Airbox?

[BlueNGT]

Hello all

Apologies if this has been discussed in detail, no doubt it has, but I am currently looking at alternatives to my 964 RS and have always liked the E30 M3.

Just browsing through a few vids on YouTube and came accross these fantastic sounding E30's, onr of them is titled 'BMW M3 E30 with Alpha-N Airbox'. What is an Alpha-N airbox?

I assume this is what makes the intake/engine sound fantastic?

I know its a big ask but would these cars be running the 4 cylinder but modified?

http://www.youtube.com/watch?v=Et0WdmFvFl4

http://www.youtube.com/watch?v=w4dX_OUu8RY

Thanks in advance

[Olf]

Can't imagine what you like about that noise!

I think all of the competition cars ran the 4 cylinder.

[taffyracer]

Alpha N is the name given to the chip that is used to map the car using throttle position rather than relying on the hugely restrictive air flow meter, these cars will be running CF airboxes with ducting direct to the throttle bodies, large duration cams and lots of other goodies, the induction makes up most of that glorious sound, alpha N systems simply allows more air to be used to feed wilder cams and thus when mixed with more fuel = more power

Edited by taffyracer on Tuesday 4th September 23:05

[stevesingo]

Have a look here...

www.s14power.com

for all things e30 m3

Steve

[BMGM3]

Alpha N kit....


Airbox ( carbon )

[swansea v6]

mmmmmmmmm what stunning sounding cars, they are the best sounding 4 cylinders ive ever heard!!!!

[Pentoman]

Love that carbon airbox - would love one for my cossie Merc

[Nico G]

The 190 evos which were the main competition for the factory M3 DTM cars in that period no doubt had them!! I don't know if the cozzie 2.3 was the same engine though.... Mint 190 Evo IIs go for silly money, probably on account of the fact that they built only a few more than the 5000 required for homologation purposes and 500 required for 'evo's' - the E30 Ms numbered over 18,000 in total including all variants by the end of production in 1991

Nick

[Pentoman]

^The roadgoing Merc engine is very similar to the race one, but a big difference is KE Jetronic (with a long intake plenum and a moving-plate air flow sensor thing), instead of the fancy slide-throttle setup that the race car has. So I don't think the two would be compatible.

That said, if you intentionally leave one corner of the Merc's airbox unclipped it sounds nice google video link that's mine a while back - sounds alright to me in spite of the big metal air flow sensor, plus that was pre-rebuild when compression was low. I don't see why the M3, even without "alpha N", should't be able to sound at least as decent as that?

[Pentoman]

One of these would suit me..


that engine apparently putting out 410bhp..!

Any thoughts on if you're going to change your airbox BlueNGT?

Perhaps this vid could help you decide

http://vids.myspace.com/index.cfm?fuseaction=vids....

Might need to up the rev limit a tiny bit too