**N55 Full Bolt On Dyno** "Proceed"

Shellacked135i · 06-16-2011, 04:12 PM

How accurate is that sniffer?

Brian@bavarianx · 07-30-2011, 11:51 PM

Hmm, maybe all the SoCal N55 guys should do a dyno day!

CPWINCH · 07-31-2011, 06:13 PM

Quote:

Originally Posted by BavX

Hmm, maybe all the SoCal N55 guys should do a dyno day!

335 oClock · 05-10-2012, 09:39 AM

jus tryin to learn here...what is the reason that the car is running "lean"? and what exactly does that mean?

Quote:

Originally Posted by Booztd 3

That drop you're seeing is the car going lean as hell....and likely detonating like crazy.

Take a quick look at your A/F ratio and its around 16 which is even lean for cruising, let alone peak tq.

That thing needs fuel, in a big way. I would seriously not even drive your car at WOT until you get it back on the dyno with some added fuel (or pulled timing)

You'll want to see that AF around 11.5 on pump gas (not sure what octane you're on) but anything from the pump needs to be around 11.5

It even appears you're lean through damn near all of your powerband

Quote:

Originally Posted by shockin330i

Welcome to DI. These cars all run ugly lean. The drop has to do with boost overshooting the max and the car compensating for it.

06-16-2011, 04:12 PM	#23
Shellacked135i Banned 6 Rep 348 Posts Drives: 2010 135i, 09 335xi Join Date: Jan 2011 Location: SoFla iTrader: (1)	How accurate is that sniffer?
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07-30-2011, 11:51 PM	#24
Brian@bavarianx Banned 170 Rep 2,268 Posts Drives: E36 M3 Join Date: Feb 2011 Location: Brea, CA iTrader: (8)	Hmm, maybe all the SoCal N55 guys should do a dyno day!
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