Basic Airbox mods

alec · Post by **alec** » Sat May 14, 2011 7:56 pm

is there no way of lifting the tank slightly and fitting some very small fans on top of the airbox somehow and forcing air in that way, like i say i dont understand these things.

tony.mon · Post by **tony.mon** » Sat May 14, 2011 8:04 pm

Not to get any usable pressure from them, that needs a turbo or supercharger.

Either will do, but that's Stage Three modding, haven't got past Stage Two yet.....

benny hedges · Post by **benny hedges** » Sat May 14, 2011 8:17 pm

what you could do is take the spark plug and jets out of the rear cylinder and run a separate header straight back to the front stack so you have a 500cc 11.5 bar compressor feeding a 500cc single

come to think of it that would be an ace mod on a 3 or 4 cylinder engine.... wonder if it's been done before?
sort of a sacrificial cylinder.... the boost would well make up for the power lost by losing a pot

rob's red storm · Post by **rob's red storm** » Sat May 14, 2011 11:11 pm

Seen it done on ducatis! Apparently works extremely well! Will see tomorrow if I can dig up some threads

gilson · Post by **gilson** » Sun May 15, 2011 7:50 pm

The ST3 has tubes that go from the triangular intakes in the front of the fairing the into the the airbox. It doesn't go through the frame, it goes over the top under tank with the tank having been cut away. The st3 is a hand made Ali tank.

I do have some spare ram air tubes but they are the first thing to break in a fall so not keen on giving them up.

Yeti has made this mod to a standard tank so maybe a good chap to ask.

How the bike is set up without the ram air effect and then running well with at speed is a question that I wouldn't have the slightest idea.

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