Actually it is.

#1. Get compressor wheel

#2. Send to anyone that provides a 3D scanning service such as:
http://www.3dscanningservices.net/ab...rototyping.asp

#3. Give 3D scan data to a Design house to generate 3D model such as:
http://www.produktworksdesign.com/

#4. They send 3D model to machining house such as: http://www.clinkenbeard.com/

And voila, copied.

 

I read somewhere that getting compressor map costs a tons of money. There may be no value add for FP to spend all that money for some graphs. The big companies do it because that's their bread and butter plus they probably own the equipment.

 

I'm not sure. I don't know how to distinguish which causes this problem.
I use stock BOV with AMS cold air intake.

 

It happens when I pull my car. The needle of my boost gauge swings up and down very quickly.
Regardless of whether the throttle is fully or partial opened, it occurs under conditions of around 3400 and more rpm, boost level of around 21 and more psig ( 145 kPa ).

 

sounds like some bad compressor surge or a bad tune of your WGDC and correction tables.

 

Log to find out. If you are hitting your load ceiling with a very sensitive/overly aggressive error correction set-up....it might be possible....

 

jyamona,

>sounds like some bad compressor surge or a bad tune of your WGDC and correction tables.
I use a GrimSpeed 3-port and the "Reactive Solenoid Max Total Upward WGDC Correction vs TPS" table is cleared by 0.0.


sstevojr,

>Log to find out. If you are hitting your load ceiling with a very sensitive/overly aggressive error correction set-up....it might be possible....
okay, attached is the pic of excel sheet from my past logs. ( Unfortunately it's snow season in Hokkaido, I can't pull my car at all until next May... ) I think load ceiling is not hit while pulling my car.

 

Thanks for trying, but those don't help at all. What you need to do is log WGDC, Load, WGDC Correction, psig (probably Baro as well), rpm in evoscan. Then post up the 'Log & Power Graph'.

I think you are saying you don't have any upward error correction? This would mean that no matter what your Boost Error Correction is, you are not allowing any upward WGDC% correction. Yes the GS 3-port is VERY fast, but you can change things to account for this. For example, after having setting up my WGDC (after switching to Direct Boost) I turned error correction back on. Even though it was 'perfect' prior to turning EC back in, when I did turn on the upward EC it was so fast I was overshooting/undershooting/overshooting/undershooting. So I had to change the way EC worked (ESPECIALLY compared to stock solenoid EC). It now looks like this, and I'm contemplating turning Max down a bit more (at 8% it was WAY too much):


If you truly don't have any upward error correction, then the problem from OP has nothing to do with overly-sensitive EC; which means it most likely is surge (which can be seen in Load).

 

>I think you are saying you don't have any upward error correction?
Yes, all values in the table is set to 0.0. Because the 3-port is fast enough (exactly as same reason as you explained ( thanks )) , I don't feel necessity to turn the upward EC values on.

>If you truly don't have any upward error correction, then the problem from OP has nothing to do with overly-sensitive EC; which means it most likely is surge (which can be seen in Load).
so unfortunately it's most likely a surge but do you think it's a surge from the log and graph, too?

 

Sounds like MIVEC issues to me.

 

Hello,

Yeah, I thought that too.
I have tried to reduce the intake mivec once, but I couldn't find any improvements while pulling my car even if it was reduced to zero. the needle of my boost gauge was shaking.

I'm going to go to Osaka during the first week of the new year. I might have a chance to pull my car in the meantime. Thank you.