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T77911S T77911S is offline
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Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
ok
some i found out a little bit

the 062 is for a 924
the 916 is a "vacuum" WUR. that is, vacuum raises the CP, no VAC lowers the CP to 2.7bar. which is where it was at. the allen screw you were messing with changes how much vacuum is needed to raise the CP. this one is bad because you are going rich WAY to early in boost, actually BEFORE boost comes in. i think the 054 goes rich around .3 bar boost and most people want to raise THAT up so it go rich later.

find you a 054 or 153 (i dont remember which one is better to be modified ) (of course i have the other one). have it modified to change the pressures but LEAVE THEM ALONE from where they are set when it is modified UNTIL you have everything else working right. then and only then make changes to the pressures to improve performance..not fix it. IE start with it a spec

stop thinking about that heat soak crap and modifying from spec to "fix" it

i deleted most of my last post after searching your WURs
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Old 08-31-2022, 10:04 AM
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