Ill be getting a new map but even the OEM map will run the pipers.
so, last trackday of 2019 looming and last chance to get my cams track tested before the big break over winter. Me being me dived right in with only half an idea what I was doing. Last time I done cams I didnt tighten a pulley tight enough and it came off on the RR
Anyway, armed with a rather vague DIY guide I gave it a skim and got stuck in. The hardest part was always going to be getting the chain and pullies to keep their timing. Of course I was too lazy to a) buy the locking tool and b) strip the bottom end to mark the bottom end of the chain.
So, I made a brace to sit across the engine bay opening that I could hook the pullies to and cable tied the chain to the pullies to stop them jumping a tooth. Ended up fiddly enough but afterwards I done a few hand rotations of the engine (using the road wheel and in 5th) and it all seemed fine. If it had have went pear shaped I would have just stripped the covers off and retimed it.
Went out for a "gentle" shakedown to make sure the cams didnt launch themselves out the side of the clam which turned into some redline runs that proved the cams were a good mod. Feels more "go-y" up top and combined with the 2.4 inlet manifold and ecu remap (limiter up to 7k) it really does rev well now.
Bring on the 3rd Nov!
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Saw a picture of it sitting outside the gates at kirky which is the usual collection point for dead track cars and wondered how bad it was. Brilliant that it's still alive and kicking, love your positive attitude to it all. I've seen many cars that have had similar problems just sit in the corner for years before getting scrapped or sold for feck all.
Are they still hydraulic tappets? Suppose they are just out of range of the hydro units, interesting. I've got reground cams to put in the mx5 but it's a solid tappet head.been doing some research and it seems that with the piper cams you need to fit a 1mm shim under the tappets to close the clearance (they are regrind cams) so looks like thats why they fell out, coupled with high rpm and load.