Dynapack Dyno Power runs --- A$80 P.WRX / ECU Tuning service---- A$POA - Page 20 - Perth-WRX.com

mao · #**191** 23-12-2011, 04:17 PM

Hi Intra,

Don't pay too much attention to the above pics as I put them there as just an example of how a little adjustment of AFRs and timing and low boost can still gain over 20hp on the late model 2.5s.

The car actually had been tuned to run slightly less than 1.1bar (as stable as the solenoid would allow) before it left. I will search for the graph and PM it to you.

I delibrately left out the final close-up boost graph as I did not want to share the settings and data online. The boost graph was closed in and magnified so we can see the actual fluctuations in boost as the solenoid tries to hold the boost.

Basically the magnified curve with target boost set was not holding well with the factory boost solenoid so we rather have a proper aftermarket solenoid to hold boost stably, especially when target boost is set higher.

My initial idea was to do a run down on the MY08-12s and then post Jon's MY11 tune to clarify:
http://www.perth-wrx.com/vb/your-dri...s-my11-13.html

Will find time to post Jon's tune soon.

Anyway, PM sent. Have a Merry Christmas and a happy new year!

Quote:

Originally Posted by Intra

Hi Mao,

Thanks for pointing me to the "fine print", i notice that boost comes up on song about 3400RPM which is granted. However you see quite a sudden drop which follows that is caused by a PID compensation map.

Subaru boost control works like this..

1. Lookup target.
2. Use initial duty
3. Check pressure
4. Apply conditions ( IS pressure above or below target)
5. Based on condition apply burst until max duty limit
6. Target met.. apply integral to maintain pressure
7. Repeat from start

Logically one would assume that if the stock boost controller could not control 18 pound of boost that you'll see a almost linear decline on the MAP as the actuator is swung wide open to bypass exhaust gas.

What wastegate duties are you running?

munya · #**192** 23-12-2011, 05:53 PM

Quote:

Originally Posted by Jordiee

jesus,

did that have an exhaust and an intake?
or actually bone stock?

hey jordiee the car is owned by daz it has butler exhaust and that's it and everything in the whiteline catalogue but you also need to remember it is a wp10 with a tuned by sti ecu from factory so has a bit more poke than the standard wrx gives my car a run at the start before the vf34p20 spools

Jordiee · #**193** 24-12-2011, 12:26 AM

ah okay that makes sense, i was a bit depressed for a second

RSR-WRC · #**194** 24-12-2011, 01:18 AM

How much to fit a vipec and tune.. I have the vipec
It's a pnp for a 97

munya · #**195** 24-12-2011, 10:34 AM

Quote:

Originally Posted by Jordiee

ah okay that makes sense, i was a bit depressed for a second

you need to wind the boost up and fuel pump should be good for 190 odd kw but cannot give any promise on how long you motor is going to last

mao · #**196** 24-12-2011, 11:53 AM

PM sent.

Quote:

Originally Posted by RSR-WRC

How much to fit a vipec and tune.. I have the vipec
It's a pnp for a 97

rufazz · #**197** 28-12-2011, 11:41 PM

Quote:

Originally Posted by Intra

Hi Mao,

Thanks for pointing me to the "fine print", i notice that boost comes up on song about 3400RPM which is granted. However you see quite a sudden drop which follows that is caused by a PID compensation map.

Subaru boost control works like this..

1. Lookup target.
2. Use initial duty
3. Check pressure
4. Apply conditions ( IS pressure above or below target)
5. Based on condition apply burst until max duty limit
6. Target met.. apply integral to maintain pressure
7. Repeat from start

Logically one would assume that if the stock boost controller could not control 18 pound of boost that you'll see a almost linear decline on the MAP as the actuator is swung wide open to bypass exhaust gas.

What wastegate duties are you running?

to point out the main point here he stated that the customer is adding moremods so the tune wasnot cleaned up lets all just wait till the tune and mods have been completed before jumping to unjust conclusions