How long ago was the spacer/intake install? Were new gaskets used, and were the 3 washers used to space the bottom intake bolt bracket out correctly?
Mileage on engine?
the dual pass, he, and spacer all went on last fall. new gaskets all around and it was pain but I did get all the spacers in the right places eventually.
The mileage is about 140k
I assume that you are using the ladder gauge as a measure of the boost?
9.5 isn't terribly off base. Keep in mind that boost is a measure of flow restriction. Boost doesn't make power, AIRFLOW makes power.
Use quality Delco sensors, double check connections and wiring. Check for an exhaust leak upstream, such as a header leak, downpipe leak or flex pipe leak. Even a small one will cause an O2 to read lean.
ladder guage, torque, and dual interceptors which match readings.
I assumed my 9.5 ish was due to elevation and all the intake/exhaust being 3". I believe it was a bit over 10 before I did all that. I do realize with more flow your boost will be lower even with more power, makes sense once you think about it. just went around all the header and exhaust bolts the other day looking for leaks. a couple gaskets werent in the best shape and might be the culprit.. couldnt find any that size at the local.. so Ive ordered some online. hopefully that is it.
Anything added or happen prior to the boost loss? How does the car feel? Noticeably slower?
Your clutch sounds like the slave cylinder is dead. Mine did the same thing, LNF slave fixed it.
I did just replace the spark plugs and change the coupler and oil (one 4 oz bottle after having it all apart and drained fully) in the sc maybe a week before it happened. thats about it. very noticeable in the fun dept. plus it feels sad. lol
not like running rough or anything, just half the car she used to be ya know?... sad.
LNF one better? or stock one not available?
Boost doesn't "spool" on a supercharger. It either makes boost or it doesn't.
Check for the aforementioned intake or exhaust leaks, then check for a hurt motor, i.e. head gasket or broken piston.
Some actual logging with HPTuners would help diagnose the problem if you know someone with the program.
What fuel are you using? Do you beat the car like a rented mule?
yeah, I know but you knew what I meant right, like it makes it faster or builds up quicker in the past when I tried the "mod"
Im going to do a compression test possibly this weekend or next week as I might go camping.
I dont know anyone but I'm saving up to get it. do I have to get pro for the data logging? it says "external" data logging is pro, but not sure exactly what that means and if I need it to log.
Im going to borrow a fancy snap on diag thingy next week, not sure if it can log but Im going to try it out.
I use 91, and not like a rented mule, maybe a mule you actually own so you feel a little worse about beating it? lol