Oil Catch Tank for Sprinting

Hi

I am looking to sprint / hill climb my Griff, but reading the MSA Yearbook I need to have a 1 litre oil catch tank connected to the breather on the rocker cover.

Does anybody have any information on how to fit one, pictures would be nice.

Thanks

Andy

There's a 3.5 litre one fitted as standard (its called a plenum)

I have a standard tiv flame trap on each rocker box

The 3/4 pipework has enough size to allow air in or out .

Or just into the wing void, out of (the scrutineer's) sight and mind

Ran my Chimaera for 4-years Sprinting/Hillclimbing with a blanked-off breather - i.e. I replaced it with a metal plug stuck in with a drop of silicon. No blowing gaskets, no upset tick-over etc!!

"Breather" is an equaliser and is only 0.001 Inch in diameter!!

I gave up "discussing" with Scrutineers on the interpretation.

A much cheaper solution IMHO - worked for me.

T

Andy, you do need a catch tank. We ran our tvr's happily at sprints without them until about 2 or 3 years ago when they started to enforce it. It's actually a really simple job to fit a catch tank on a griff ( which is pointless IMHO as if you have a proper engine failure it will lose a lot more than 1 litre of oil - there got that off my chest).

All you need to do is to remove the mushroom breather from the rocker cover fit a stainless steel threaded pipe connector run a rubber hose from it to near the radiator and fit the catch tank there. Motorsport shops sell catch tanks at high prices. I used a 1 litre aluminium hiking drinks bottle and just drilled a hole in the screw cap top so that the pipe could be slotted into it. The catch tank is just cable tied to the chassis rail by the rad. Simple, quick, light and cheap and it still allows the crank case to breathe.

This is what I've done for the last 2 years & passed scrutineering every time. Simples.

Yep, that's what I was getting at

If you replace the mushroom with a hose barb or similar with a bigger bore, be aware your idle control (and crankcase evacuation) will be affected as the tiny drilling is the control

Ask Daz!!! He did exactly that.