StevehS3

That technique seems to work well.

My RainSport 3s are on 14” and I run 13” with ZZS for track.

Ian, I really like my Rainsports (not sure what the difference is to Rainexperts) but they are nothing like CR500 or ZZS (and I expect R888s) in terms of dry grip. I wouldn’t use them for track unless maybe it was heavy rain but for road they are brilliant. The sidewalls are much softer and a bit higher profile (60) so the ride is wonderfully comfortable and less jarring if you hit a pot hole - it is very noticeable. I pushed them hard at Curborough and was surprised how much grip they actually had and they give loads of feedback as they don’t suddenly breakaway like very grippy tyres. A secondary advantage is that they don’t shower your car and the one behind with as many stones which you get with sticky tyres.

Reply to #14. I am not sure but I think they were made by Mocal so it’s worth trying Think Automotive for info or parts of you struggling. Steve

I run the same size Uniroyal RainSport at 20psi. As Grumpy said, the side walls are very soft so I wouldn’t go lower as they still look and feel soft. They are very different to what I’m used to but seem quite grippy and absorb road bumps very well.

Great thread and discussion chaps. We help another member (someone we don’t know) and then get an insight into rj’s screaming 7 and a nice trackday video. I enjoy seeing what 7s other people have, where they are and what they use them for. Good luck with the repairs rj, at least you have time before the Spring!

Ah, I must have missed that rj. I am sure it’s 3/8” but I wouldn’t bet a cam cover on it!

Small pilot hole eg 2mm then a 3/8” hole in the cam cover. Please check this size before drilling though!

Like this rj?

Maybe someone knows better than me but I think it would quickly fill a catch tank as it is under oil pressure (4 bar).

I’ve emailed what I have to you both :)

No problem. Just remember it is for the metric chassis which involves relocating the header tank. The Apollo tank location and fixing brackets etc are different too for the imperial. The drilling of the cam cover is the same though. I think I’ve got the article from Low Flying as well which is for the imperial chassis. PM me your email address and I’ll get it all scanned.

Ralph, Would that be for an Imperial or Metric chassis (the tank is located differently depending upon the chassis - I have the Metric chassis instructions only)? Steve

Thanks for the Spotted. Don’t seem to get as many these days.

That would have been me. Heading home after a morning’s blatting. Roads were wet, car is filthy but every one’s a winner in November!

I don’t know RJ’s reason but it does increase the oil capacity by about 2.5L which must be good for maintaining the condition of the oil and its temperature.

Many thanks Jonathan. It is the plastic manifold on one of the very last Ks. I will take another look at the plugs as well.

Great you’ve got yours sorted. Last time I changed the plugs the one nearest the scuttle was a slight pink colour which I assume is coolant. Over 5,000 miles I haven’t topped up the coolant so it must be very slight. Any thoughts if this is the inlet manifold gasket fault and if so, was it easy to change (it looks awkward!)? P.S. It’s a late 1600 K, 12,000 miles.

Hi Paul, I don’t know if this helps but I bought one a couple of months ago and remotely mounted it via a short hose onto a lower chassis tube. Sorry but I can’t remember about the thread. The hose connection may be a work-around this problem. I am hoping it will last longer by not being directly in water spray, stones and grit etc, and being away from engine vibrations.

1998 onwards was M12

John, do you know if all metric chassis cars have captive nuts at the back? Mine is a 2012 car.

My understanding is that the oil in the Apollo tank is under pressure so there must be some restriction in the hose from the top of the tank otherwise the oil would be pumped out into the cam cover and the pressure would drop [note: I expect that some oil is sent out into the cam cover anyway along with froth and the oil pressure is slightly lower after fitting an Apollo]. The only place mine has a restriction is the cam cover fitting/union. I suppose the NRV (flap valve) adds to the restriction but that isn’t part of Caterham’s design and there is a question mark over what effect that has on the performance of the system. Personally I think it may reduce the effectiveness of the Apollo but it is worth it to get instant oil pressure at start-up. Having said that, if mine was purely used on track I wouldn’t fit a NRV.

Here are some photos. I don’t think it needs to be mm perfect and I remember it was obvious with the cam cover removed. Here are some photos of where it fits. I don’t think it

Great, sounds like you are pretty much sorted with everything.

Hi Andrew, I had a look at my NRV and it has the word HINGE on the Apollo tank side of the valve.