I bought a BMC CDA filter the other day for £35 off ebay which is a bit of a bargain I think! Instead of using the 899cc bob or silicon hosing im going to design and make a custom airbox. Its going to be based on the 899c bob but with a larger intake pipe to match the size of the BMC intake. Im doing it this way so that I can plumb in the breather pipe and the other thing which is inside the standard airbox. There will then be a section of tubing from the filter down to a trumpet which I will mount in the bumper next to the towing hook.

So today I test fitted an 899cc bob to get an idea of dimensions, and sizes that tubing is going to have to be. Its just a test fitting so its all bodged on for now. For example gaffa tape is currently securing the airbox to the filter and also to hold the breather pipe into a hole I drilled in the side.

Im planning on replacing the cardboard covering the coilpack with some sheet steel so im going to put a couple of mounts on there to secure the filter too.

any progress with this bud?

hello hydro-locked engine when you go through a puddle

might be worth noting that with the 899 bob on there is a restriction in the TB top iirc you should see it when its bolted on and you look into 899 bob

Ash

This is the general idea, i will be helping him make it, 899 bob is just a temp test fit

I'd put it higher up and further back -- on top of the gearbox will be fine.

fingers99 said:

I'd put it higher up and further back -- on top of the gearbox will be fine.

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How do you mean? the cold air feed?

Yep, or, at least. the start of it. This addresses Whitz's point.