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Well that took a while but i've added ~original to the pictures in the whole thread.
Strange as I could see all the images before and after the change.

Thanks for all the updates, enough going on over there to keep you busy! Any idea what caused the oil starvation? Usually the ///M engines are well protected on that front afaik.

Jeroen wrote:Thanks for all the updates, enough going on over there to keep you busy! Any idea what caused the oil starvation? Usually the ///M engines are well protected on that front afaik.

With the previous install in the Yellow car, the sump was modified with a small capacity (~4.5litres) to allow the engine to be stood up taller away from the RHD brake setup. This works fine for road use and track use with trackday style tyres.
Once I'd added the splitter/diffuser and slick tyres, it is now generating much more cornering forces.
I can see from my on board videos of Brands Hatch the oil pressure dropping to near zero psi through most right hand corners (the standard oil light only flickered once as they are only set for 5 psi) and flicking back up once in a straight line.
After 8/9 laps of that the bearings would have been worn, got hot and one big end decided to seize when lifting off the throttle, snapped the rod and the rest became a bit mess .

The new engine is now back at the correct angle with a standard E34 M50 sump with a baffle and I have also fitted an accusump system that retains oil pressure to be released into the engine if any starvation occurs. The oil pressure doesn't go below 40psi now at any point on track.

OK takes quite some money and efforts, but better now!

Some good fun at the BHP show at Lydden Hill, bedding in brakes and being gentle on the brand new engine



https://www.youtube.com/watch?v=j8FIvQ8Agm4&t=0s

On to Mallory park and the first race meeting of the year for me

https://www.youtube.com/watch?v=Bs76TF6fvxg&t=0s

Some pics from Snetterton in September

That’s a proper way to use an E21

Great!!

Very nice view!

And the engine is keeping well now?

Jeroen wrote: Mon Jan 21, 2019 6:46 am And the engine is keeping well now?

All good so far, in the video's you can see the central gauge is oil pressure and keeps over 40psi+ everywhere now
I just need more seat time to get confidence to push the car harder.
Biggest improvement would be to upgrade the squidgy bit attached to the steering wheel.

Mihajlo wrote: Sun Jan 20, 2019 7:25 pm That’s a proper way to use an E21

Used as intended

Peter V. wrote: Mon Jan 21, 2019 5:18 am Very nice view!

Thanks. its always a good view from any E21's driving seat