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Title: crank tank? Post by: bang on January 23, 2008, 17:12:13 pm how big crank Catchtank do i need for an 2779 oxy boxer? is there any law for that in drag racing?
peter bang denmark Title: Re: crank tank? Post by: RMS Boxer Service on January 23, 2008, 17:48:57 pm Hey Peter
Crank tank???? It's called a breather box or catch tank ;D /R Title: Re: crank tank? Post by: bang on January 23, 2008, 18:39:34 pm ha ha yes.. ::)
have you orderd the rods? Title: Re: crank tank? Post by: Roman on January 23, 2008, 19:02:15 pm I have a 1 litre box and 19 mm hoses (3/4") on my 2789 and I haven't had any problems with overflow. You need a big breather filter though, my K&N is too small. I think my filter is K&N part #62-1420, but use as big as you can or even dual. A high revving big block breathes a lot!
Title: Re: crank tank? Post by: RMS Boxer Service on January 23, 2008, 19:04:10 pm I have send a message regarding the current price for a set. ;) /Rolf Title: Re: crank tank? Post by: bang on January 23, 2008, 19:40:59 pm okay thanks roman.. will have that in mind..
Title: Re: crank tank? Post by: richie on January 23, 2008, 21:09:05 pm UK legal minimum is 1/2 litre,but bigger the better,
cheers richie,uk Title: Re: crank tank? Post by: Neil Davies on January 24, 2008, 15:43:12 pm I remember someone telling me years ago that a rough rule of thumb is to use around half the engine capacity - allows for plenty of air movement. So on a 2779 you'd be looking at about at least a 1 litre tank but preferably closer to 1.4 litres. And as Roman said, breathing is important. Have each breather entering the tank independantly - T-pieces can create vacuums and not allow air to move.
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