ok so, still trying to come up with a fix for this little issue of mine, resigned to the fact that I probably need a new manifold, what manifold are you guys running or would you suggest that is shorter and is going to offer more room in the bay for the webbers?

What sort of performance differences are we looking at to change the manifold over to an oval port? in the mean time I shall go hunting for a slim box filter....

cheers guys for all your help, I'm alright with A12 engine internals but when it comes to extractors and webers im totally lost! (not allowed to run em on Junior Sedans which is where my experience of dattos lies...)

Cheers, heres hoping.

the problem is the space i have... or rather haven't got....

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Hiya!

I just took delivery of my first road registereable datto the other day and she is gonna be a slow project build as well as a daily but i have a question for all you knowing datheads.

the set up is this a12 bored 40thou, flat top pistons, 10.8:1 comp, diamond laped decked block and shaved head, ported, a15 inlet valves/mazda 1300 exhaust valve, double valve springs, 34/72 cam and the issue is the twin 40mm side draught webers, which currently have filter foam cut outs cable tied on as air filters and I want to get some proper ones on, but after scouring darwin (took about an hour - not a big place) i have found that no one stocks anything that is gonna work for me. what filters would you guys go with considering the space restrictions... this is how i bought the car, and I will be modifying the engine bay set up later to sort these sorts of things out but for now its doing my head in.

sort of unrelated but good on you for getting the shell into the junior speedway down in WA, its huge and these kids are awesome! been down to watch them all race many times.