Petbeemer

Mapped the Bugeye yesterday aiming for 16/17psi boost, it's not quite hit target figures but getting close, fairly hard to get a decent 3rd gear pull around where i live without travelling miles, but heres the log of what i did yesterday, feels strong from low down revs and pulls clean, getting knock in strange places which could be down to the exhaust catching

Spec
Forged motor
3" turbo back
de-cat'd up pipe
stock tmic
stock inj

dynamix

iTrader: (3)

You really need to be logging a few more items to make it a worthwhile exercise logging. As you say, you didnt hit boost target.

When you say knock... are you hearing this through det cans ?

Petbeemer

I was a little pushed yesterday but ive set romraider to log these now

Engine Speed (RPM)
Engine Load (Direct / RAM)
Ignition Total Timing (degrees)
Knock Correction Advance (degrees)
Manifold Relative Pressure (Corrected or Sea Level) (psi)
Intake Air Temperature (F)
Mass Airflow (g/s)
Primary Wastegate Duty Cycle (%)
Throttle Opening Angle (%)
Lambda 1

Should that not be enough?
Not using det can's although i have a steth, couldn't hear any 'pinking' from the motor and as it look's on the log the only time it notes any sort of det it's actually not boosting so imagine its picking up noise from the exhaust catching underneath

Petbeemer

Not hitting target boost could well be the actuator arm needing a tweak could it not?

banny sti

iTrader: (68)

Not using det can's although i have a set, couldn't hear any 'pinking' from the motor

Is that with just your ears from the cabin????

Banny

Petbeemer

No i have stethoscope 'steth' which ive used in the past with good results

dynamix

iTrader: (3)

is your knock correction table flattened? if not it would be more worthwhile to log the feedback correction and fine learning as knock correction is only showing you the timing from the advance tables net of corrections and this is misleading.

Also worth noting that the lambda reading you will be logging is notoriously inaccurate.

Petbeemer

how do you flatten the knock table?

dynamix

iTrader: (3)

if you read the faq's on romraider it will talk about it. I wasnt saying you should necessarily do it as it does have it's downsides but it would than mean that the knock correction value you are logging would easily show if the ecu is pulling timing. Better to log the knock values themselves as logging knock correction is meaningless IMO.

Petbeemer

Ah yes i know what you mean, see if it's having an adverse affect rather than just monitoring the value, these Scoob's seem to a fair bit different to map than the Evo's more overlaying things rather than definate values comparing the two

Tomwrx

iTrader: (54)

well done on trying to map ure own car mate,

i wouldnt have the ***** to try it as i usually **** things up lol,

Petbeemer

Thanks m8 ive always been ok with Evo's but these Scoobs are a lot more complicated, don't want to put anyone off though it just takes time, reading, more reading and a bit of getting accustomed to the software thats involved, worth it in the end though!
I designed the mappable ecu config's for the early Evo some years ago, i knew nothing about electronics before that, so it proves it's worth a shot!
Ecutek have ruled the roost for too long!

Petbeemer

Ok knocked a little off timing at top end IAM gone to 16 so i presume ecu is 'happy' with the tune
fine learning knock is stable but still not hitting target boost pressure, and that's after a good tweak on the arm so presumably im loosing pressure somewhere? or could it just be differences between turbo's?

dynamix

iTrader: (3)

What up-pipe did you fit and what turbo?

I see you have flattened the advance table - it does make it easier to read one line and see if corrections are happening.

Interesting with the signal from the ecu dropping out on the first pull, this is often det induced so it may be worth checking timing/fueling/det again to be safe.

Petbeemer

Turbo's stock, up-pipe is some cast afair that i choose for the fact that it was cast and wasn't some huge bore thing, it has same diameter as the downpipes,

Would the signal dropping be nothing to do with ecu re-set on the first pull?

dynamix

iTrader: (3)

Ok. A definite advantage to go 3 port now then.

Not in my experience. Check it with det cans over a few pulls. Maybe if the car has been sitting getting heat soak you sometimes see a lot of det in the first run from a reflash.

Petbeemer

Ok will do, thanks for the advice
what's the gains over 3 port? just better managment of the WG?

dynamix

iTrader: (3)

You should see a quicker build up of boost on your set up as it seems very slow to build up according to your logs. Should help you get to your boost target too.

Petbeemer

Attached a picture of WGDC if that helps

dynamix

iTrader: (3)

can see roughly what your wgdc table looks like from the logs - deffo need a 3 port there running that higher a duty

Petbeemer

3 port it is then