400bhp 35i 0-60?

Ho
FWIW there was no indication that a walnut clean was required and ..sadly I’ve lost the pics taken by the guys, but the level of contamination was less than Chippie’s

If you think of the lengths folks go to ensure good gas flow on NA heads then if you’re looking to tune a N54 then its logical to get everything tickety boo before you start the tuning process..rather thsn just relying on brute force to blow air past that crap ..

As you may know I’ve spent many hours on that dyno having beaten most things to death..

As to when its required ..

I think catch cans are largely a placebo

Stop / start and short journeys are really harmful..

A good non volatile ester based oil is a major step forward

I’ll probably look at it in a couple of years I think..

I may do a bit more dyno tweaking next year..

If you’re driven by cost effectiveness then just the leave stock..

If you’re in pursuit of perfection then
How much is a reasonable price to have the engine walnut blasted, I hadn’t even heard of this before you mentioned it, seems a viable shout though
 
Ho

How much is a reasonable price to have the engine walnut blasted, I hadn’t even heard of this before you mentioned it, seems a viable shout though
 
Do you or anyone else know of someone good who does this near Kent or South East London?
 
Do you or anyone else know of someone good who does this near Kent or South East London?



 
From what I have heard lately Will isn't that involved in TWG any more as he is concentrating more on his Legend racing and doing track driving instruction.

A bit further along the A30 is RBM Hampshire who I've been using since they opened in 2019. https://www.rbmhampshire.co.uk/

I'd be surprised if they couldn't do it as Ross worked at Sytner for 15 years before he set RBM up, and he runs a couple of loan cars which is handy.
 
Didn't @john-e89 start doing hazelnut blasting (sorry walnut) a while ago?

Why walnuts, anyway? What have the other nuts done wrong? I would prefer macadamia, as they are the most expensive nuts. But I would settle for a peanut. ;)
 
Didn't @john-e89 start doing hazelnut blasting (sorry walnut) a while ago?

Why walnuts, anyway? What have the other nuts done wrong? I would prefer macadamia, as they are the most expensive nuts. But I would settle for a peanut. ;)
You’ll be pleased to know your very good question required me to use Google to ascertain the answer..

So we know that it was BMW that specified this process originally….why Walnut shells?

Their research, published in Advanced Science, reveals that the impressive mechanical strength of walnuts’ shells is due to a different cellular structure compared to other nuts and seeds. While the outer shells of most nuts and seeds are usually made by layered 2D cells, walnut’s shells are made by a newly discovered cell type: the polylobate 3D sclereid cells. Such system consists of interlocked cells arranged like pieces of a 3D puzzle. The lobes present in these cells are entangled and knotted at the microscopic scale and are responsible for the hardness of the shell.
 
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