Croc

Remember the CSR chassis is different to the regular SV chassis. So there are tubes in the way of doing the traditional dry sump tank up front of engine behind the radiator. The 620 rear mounted tank is daft - not a fan of that design. Adds weight and messes up your weight balance. I use a similar approach in the BMW CSL (because the trunk is the only spot for 15 gallons of oil) and the volume of hot oil running fore and aft is ridiculous plus a safety issue. The CSR dry sump tank solution is quite ingenious for compact packaging while not messing with the weight balance front/back. It follows from open wheeler and sports racer solutions. However, it is not designed to be as easy for consumers with road cars.

Was this what you were remembering?

Yes - exactly that. Also don't forget that the only point of access to the dry sump tank has a driveshaft through the middle of the sounding point. So you can only test the level above the driveshaft which is notoriously inconsistent in my car because the oil goes hiding around the system. I can lose 2+ quarts in the system when I do an oil change as I measure what is taken out and compare to the dry capacity (which is known). My method is clunky but it does ensure safety of engine. Oh if you open dry sump tank while engine is operating you do get covered in oil - it splashes and breathes heavy. Took a while to clean me and the car up when I tried it exactly once.

If its any consolation - been there done that and feel the pain. Start thinking where you have real estate to mount a catch tank and measure vertical height you have available. To max vertical height then forget the bottom drain valves - reduces much needed volume. Look for compact filter tops to again max volume of any catch tank. For the time, my approach was the right one. If I had to do this again today then the current Mocal options would be my first check. Compact filter. Nice broad design to maximise volume. Not sure if they can be spec'ed without the lower drain hole so you can use a top down syringe/turkey baster to extract the oil? http://www.mocal.co.uk/products-tanksandpots.html

Yes I observed the diversity of recommended approach. However, what eventually worked for me was to channel my inner octopus and use all my tentacles simultaneously to depress the three tabs while cursing the engineer who designed this piece of shit with many bad words not repeatable to nice gentlemen like yourself. Your approach may differ.

Fuel pumps have this annoying habit of slowly failing so it is very plausible that this is what yours is inflicting upon you. I would test again and if you think you are getting starvation then replace the pump. In the meantime just order a new pump from Rimmer Bros and have it on the shelf ready to go. The pump comes from POS Rover shitbox. Cross referencing that code on the top of the pump usually cross links to a pump on Rimming Bros. That comes out via pushing in the little tabs to pull the line out. Best achieved when you use all 8 of your tentacles at the same time! Annoying thing.

Westfield on Bringatrailer https://bringatrailer.com/listing/2014-westfield-seven-replica/

My experience with Caterham tanks is that there is no baffle. Every one I have ever owned is a big open single cavity. You have an in-tank pump. I think something has fallen or broken off it. Pull it out and have a look. No fuel pickup modifications should be needed if the unit works correctly. Pull it out from the top and have a look inside the tank. Its a reasonable sized opening to look into - use a spark safe light of course. The pump unit can be sourced cheaper than with Caterham - use the marked code to search at Rimmer Bros in the UK.

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Do it. You need steering to make the move. It’s reversible later if you need to.

ah ok. Don’t have a photo of that. Will post one when I get back from Venice.

Oh the poster of circuits at scale to show relative size? That is neat. Saw it on Silodrome and bought it via a link there. On the wall being the side of the stairs, there is an Ikea poster of a se7en kit. Westfield spec posters. A Road & Track spec sheet for an R300. And the wet undies photo with the lady removing them after a drift ride with Scott Mansell in a Caterham. I just discovered googling for that image was a really bad idea.

Dust? What are you referring to?