Took the car to the track and of course was able to cut consistent 1.5 60fts every time, but was only running 10.99 or low 11.0x at like 120mph. I was sure with those 60fts I was going to be deep in the 10s. I started paying attention to the boost gauge on the last few runs and the car was hitting 20psi max (set up boost by speed to 25psi). I looked at my logs and the boost was around 10psi in the lower speeds and when it was supposeD to be boosting to 25lbs it was kind of all over between 15 & 20 psi. I re-uploaded my tune and the same thing. there were no boost leaks and I can't find a crack anywhere in the manifold.

Could it be the AEM Boost Solenoid going bad? I may have whacked it while changing my oil today with the oil filter remover wrench, could that have done it?


The strange thing is, the first run of the day it was boosting normally, then from the 2nd run on is when it started acting funny, I also missed 5th on the first run so that killed that run.

The really annoying part of all this was cutting 1.5 60fts and not being able to run down the track at 25psi />

 

Dang. You would have to look at the boost fb logs for solenoid. See if it was actually trying to correct.

I'd replace it as a quick way to check it. But could be something else. Maybe map sensor acting up? Maybe loose wzstegate lines.

 

I didn't see any cracks in the WG lines, I'll have to take a better look tomorrow. I sent EVANS a data log from a few runs today, hopefully he can pinpoint what's going on. The first run was normal, hot lapped it and boom, second run it started to act up.

 

After getting the car up on the lift, the top wastegate port was lose. happy it's minor, yet annoyed that hit had to get loose when it did. My best ET to date was 10.92 with a 1.79 60ft, and 4.810 330ft yesterday's first run was a 1.53 60ft and a 4.589 330ft, probably would have been mid 10s for sure aaaarrrggggggg