I have a set of Jenvey throttle bodies on my Zetec and I am at the stage of sorting out the airbox... I was trying to avoid cutting the bonnet but I think sapce is so tight I will have to. I would like a carbon airbox not very locost I know but if the price was right and all that.... Anyone got any advice?

thanks
Dave Bailey.

I've used a Pipercross Airbox in the Phoenix on Zetec/Jenveys. Works well but is expensive.

http://www.pipercross.net/competition/products_600_airbox.asp

What size trumpets are you running? if you are running anything more than 10 mm the box will be pointless. Again depends on spec of the engine would it not be better to have the trumpets exposed to cold air.

Hi I have 90mm trumpets...

Looks like I might have to reduce the trumpet lengths to prevent from having to cut the bonnet.... Currently 90mm but I could do with reducing them to 50mm... Any advice as to how this will effect performance?

thanks
Dave B

I have 45mm trumpets inside the Piper box.