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Old 04-02-2021, 07:08 PM   #29 (permalink)
19bonestock88
Master EcoModder
 
Join Date: Jun 2016
Location: KY
Posts: 1,346

IGL - '04 Saturn Ion
Team Saturn
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The stock valve springs are the limiting factor for revving high, all stock Ecotec valve springs are good to 7200 RPM. They sell stiffer ones but I wanna avoid getting them in an effort to avoid excessive friction. I guess I could do titanium valves and keepers/retainers to save weight and maybe gain some revs on stock springs but that’s awfully spendy for an under 200whp engine
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