Tuning Alfa 156 85kw

by **MHB2011** » Thu Jul 13, 2017 5:43 pm

Hey fredvr and jtdpov,

I am new to remaping and trying to learn , please understand me.

About boost pressure it was really confusing because desired air is much higher than actual air intake and boost pressure i was expecting to see the same( desired higher than actual boost pressure)...If this spikes are normal than ok but i have feeling that boost is droping because it goes too high.

All that i changed for now is:
Torque limit -> http://imgur.com/saJd20S original vs moded
Smoke limit and stoic -> http://imgur.com/vhZtJPA
IQ vs temp -> http://imgur.com/MX1ePzv
Driver Wish -> http://imgur.com/2PFgxtk
Boost Map -> http://imgur.com/vbA4zkN

I've never tried to change VNT maps , but i will look at it and try to understand it . Are these maps VNT maps http://imgur.com/J0lacpr ?

Tomorrow i will do the logs as you said and i will post them.

All the best. :wave:

by **fredvr** » Thu Jul 13, 2017 9:04 pm

Hi MHB,

I'm no expert, but this is what I'd do.

I'd increase IQ vs temp if you keep it it too close to the max you want it can give you unwanted results.
I'd increase driver's Wish too, progressively from 50-60% ask for 10-12% more than you want, the torque curve will limit it.
I'd give 50-80mbar more in turbo pressure on the la 2 columns. (we'll see if it is necessary with the logs)

You got the N75 maps however map2 has wrong Y scale
If you want to drop the pressure you reduce the value.

Maybe some one else has better ideas.

by **MHB2011** » Fri Jul 14, 2017 8:41 pm

Thanks for helping fredvr.
Today i did some tests.
I can log maximum 4 parmeters at once because i dont have paid licence for multiecscan.
I tryed to log 4 by 4 parameters...
Here are the results : http://imgur.com/a/ECFJH

It still seems to me everything drops too much after 2600rpm and 2300+mBar boost pressure

by **MHB2011** » Sat Jul 15, 2017 12:36 am

Here is another log of 3rd and 4th gear boost pressure
http://imgur.com/a/LaDVY

by **fredvr** » Sat Jul 15, 2017 1:01 pm

Hi,
The 50€ license fee for the full version on MES is well worth it, when you start tuning, you can do proper logs, 4 by 4 is not really representative.
Send me the logs all of them, look at you mp's.
Send me the project too, or put it here for download.