Quote:
Originally Posted by SeanWRT
Quote:
Originally Posted by Endeav
Interesting. Maybe this is just a difference between EWG and PWG I've never considered. I'm used to PWG vehicles where WGDC is basically a direct measurement of how "hard" the turbo is working and high WGDC with low boost usually means a boost leak / wastegate too loose for the target boost.
I'll be honest and say I've never tried running higher boost, main reason being that I saw the taper and high WGDC and stopped because I assumed there was a boost leak that needed to be fixed. I've also contacted Terry about this via e-Mail as well as on N54Tech and long story short he said he it looks fine and would leave it where it is. Ideally I'd like to run 22-23 PSI but have it be flat boost.
I've PM'd you a couple logs. Thanks!
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I looked at your log. Perfect. No issues at all. The 1~2psi Underboost up top is intentionally programmed by BEF, for a clean throttle.
Octane is enough, fueling is more than enough. Time for more boost, I'd do 24psi immediately...
and wait for the turbo fail - joking  |
Hahaha, yeah the logs are always insanely clean with regards to timing, fueling etc. It was just the WGDC that stopped me from pushing further. Not sure why I never just tried upping the boost and seeing what's happening. Probably because my mindset was looking at the problem like it was a PWG WGDC.
If you're right, come spring I'll up the boost on the JB4 and see if it responds appropriately. Probably still have the taper because of the BEF like you mentioned, but should be able to hit 23 taper to 21 PSI safely.
Thanks for your help and insight!