[elanko]

Trolling for comments, suggestions, and any info I can get with regard to turbo addition to my 5mge. I am building this since I have 2 of them. Block is clean, on a stand, exterior painted. going to shop for mirror like finish/decking (Yes I have read reg reimers article on the mhg-and associated shop work)-same shop is doing the head. Aer there sodium filled valves available for this head? Ive heard that sod. valves can tolerate heat as well/better than 4 valves in 7m head? Yea/nay? Do I need to change (from stock) valve springs? Lifters? cams? Also does the compression ratio need to come down to go turbo? Shop guy said comp. lowering for these is usually done with new pistons. Lsat question is how far can one reasonably go WITHOUT the turbo (in terms of HP)?
Any answers or comments would greatly be appreciated.
E

 

[elanko]

Anyone know the answer to the sodium valve question? Aer they available? Are they worth the effort/expense? Does anyone have them? Still hoping for direction on the valve spring question. Can I go with stock replacements, or do I need beefed up? Howz about the forged pistons? Can I go with stock (size) forged pistons, keep compression ratio as-is (its a '85 motor), and keep the boost low? Im really a v-8 guy ('68 pontiac GTO-yes it runs, and yes its fast), and lowering compression is something I have never aspired to-its always been the other direction.