83turbo280zx Posted September 9, 2008 Share Posted September 9, 2008 well back from my nice "vacation" lol now off to asking questions again so ive read numberous posts over this but i never got a straight answer. to get the best performance as far as engine response, a little more power at take off, etc. what should i set the valve lash at? i've heard like 0.003" wider than factory spec when adjusting the lash with the engine hot is pretty much the best lash you can do, but i wanted to get a second opinion. any takers? Quote Link to comment Share on other sites More sharing options...
johnc Posted September 9, 2008 Share Posted September 9, 2008 Set it at the factory lash spec. Quote Link to comment Share on other sites More sharing options...
aarang Posted September 9, 2008 Share Posted September 9, 2008 If your 83 turbo has the P90a head, which it should unless it has been changed, then there is no valve lash adjustment required as it has hydraulic pivots. Quote Link to comment Share on other sites More sharing options...
83turbo280zx Posted September 9, 2008 Author Share Posted September 9, 2008 If your 83 turbo has the P90a head, which it should unless it has been changed, then there is no valve lash adjustment required as it has hydraulic pivots. i have the p90a head that doesn't have hydraulic lifters, some p90a's do and some dont, for whatever reason, lol but yes i do have solid lifters that would require an adjustment, but i think i'll do what TonyD said on zcar and just tinker with it on the dyno and see what my best result is, thanks for the input guys!! Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted September 12, 2008 Share Posted September 12, 2008 10 and 12 Quote Link to comment Share on other sites More sharing options...
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