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Re: A race bmw 316, now S14 powered again!
some progress sort of, some time ago i bought a genuine 2.5 s14 head off ebay it was very cheap!
you now know why. clearly its dropped a valve, judging by one of the inlet guides being deeper into the port than all the rest its likely that what actually happened was it was buzzed or used an un-advisably radical cam on the std shim arrangement, std shims sit in the top of cam buckets and can be flicked out.
most likely a shim was flicked out, jammed and next time the inlet cam cam round, it tried to lift the cam way past its normal lift, the top of the retainer and collets punched the guide down and at the same time mashed a valve in a piston. ive just received a set of oversize valves from america, even with import duties etc etc they are a fraction of the price of buying them here. and have now dropped the head off to have it welded up and new inserts.
im just waiting on the new block to turn up, and some money so i can afford NEW valves springs, new steel followers and go to group A bda style top hat shims, so i can spend even more money on hotter cam, and not worry about it self destructing every time i rev it
some progress sort of, some time ago i bought a genuine 2.5 s14 head off ebay it was very cheap!
you now know why. clearly its dropped a valve, judging by one of the inlet guides being deeper into the port than all the rest its likely that what actually happened was it was buzzed or used an un-advisably radical cam on the std shim arrangement, std shims sit in the top of cam buckets and can be flicked out.
most likely a shim was flicked out, jammed and next time the inlet cam cam round, it tried to lift the cam way past its normal lift, the top of the retainer and collets punched the guide down and at the same time mashed a valve in a piston. ive just received a set of oversize valves from america, even with import duties etc etc they are a fraction of the price of buying them here. and have now dropped the head off to have it welded up and new inserts.
im just waiting on the new block to turn up, and some money so i can afford NEW valves springs, new steel followers and go to group A bda style top hat shims, so i can spend even more money on hotter cam, and not worry about it self destructing every time i rev it
they make s14 manifolds with 2 inch primaries for eye watering amounts of cash, even then they are for lhd so no use to me, i dont mind cutting up ashley pinto manifolds, but buying a bmw one for a 4 figure sum and cutting that will take balls lol! so i guess i will have to make one just like you did 
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