Darth_V8r

iTrader: (4)

I wish I could help with most of that. For the most part I don't deal much with boost so I don't have an intelligent answer. The chart just looks like valve float in the NA world.

I doubt the clutch slipping would affect boost that much, since your turbos are really only dependent on RPM and airflow, right?

kingtal0n

iTrader: (1)

rate of change of rpm affects boost pressure building. if you want to see the slowest spool you run in 1st gear. If you want the maximum torque at the earliest RPM (most boost at lowest rpm) you run in final gear.

There are performance implications and many "sayings" that follow, like "turbos like load" and "turbos like numerically low rear gearing" etc... it is because when you reduce the rear gear # it is like running in a higher transmission gear (like fourth instead of third), so you see more torque (boost) sooner because rate of change of rpm decreases.

RealQuick

iTrader: (14)

Captured some clutch slip I believe on the very first pull I made:

Notice the rpm/speed and where the vertical cursor is on the log.

You can also see where boost drops due to the slip.

CyberGrey Z28

iTrader: (4)

Great progression!!

Any track times?

Darth_V8r

iTrader: (4)

I'm surprised at a RPS slipping.

Either way, I'm not much help man. Sorry. I just dont live in the boosted world. Best of luck

RealQuick

iTrader: (14)

thanks!

not yet, need to find a car trailer. Track is 2hrs away and I'd hate to break something without a trailer.

RealQuick

iTrader: (14)

no worries! I have an email to Thomas@Hendrix Engineering for his thoughts on the clutch.