Alfa Romeo Giulia Forum banner
101 - 120 of 1,111 Posts
I'm using multiecuscan.
Previous tuner says that heat is the problem, but he didn't log the car.
I mount bigger turbo and power is the same. I got only bigger torque till 3500rpm. Than it's the same as before turbo. I also don't know if he make new map...

Im talking with other tuner and we will see.


Wysłane z mojego SM-G973F przy użyciu Tapatalka
Can you log specified vs actual boost and wgdc to make sure boost (load, tq) targets are set high enough in mid upper rev band?

Also thats odd a larger turbo is even able to make more boost than the smaller turbo down low. You sure they sized it correctly?
 
In multiecuscan desired boost is the same as before turbo. I don't know if someone changed the maps...

Deisred boost at 5500 is 2570mbar, real is 2650mbar. So I assume that turbo has potential but ecm cut them off.
When I got ec tune, I also make logs, and sutuation was the same, I thought thay Deisred should he higher at 5500. Ec told me than in tune is higher, so why multiecusan shows something different?

Wysłane z mojego SM-G973F przy użyciu Tapatalka
 
In multiecuscan desired boost is the same as before turbo. I don't know if someone changed the maps...

Deisred boost at 5500 is 2570mbar, real is 2650mbar. So I assume that turbo has potential but ecm cut them off.
When I got ec tune, I also make logs, and sutuation was the same, I thought thay Deisred should he higher at 5500. Ec told me than in tune is higher, so why multiecusan shows something different?

Wysłane z mojego SM-G973F przy użyciu Tapatalka
I would have the same question as you. Desired boost at 5500rpm is going to need to be alot higher than that. Id show logs to tuner and ask more questions. Why not just run jb4 on custom map 6 so you can set your own boost targets per rpm? Thats what many are having to do with the new hybrid turbos on the turbo b9 audi s4
 
I don't trust him so I will not go to him anymore.
He has car for 3 days... Make only 5 runs on dyno.
Unfortunetly for him i got dashcam which record all the time... I search records and I didn't see any calibration after load new map (3 times rpm to max).

Wysłane z mojego SM-G973F przy użyciu Tapatalka
 
It is controlled constantly by ECM (LT pump PWM), so when you hit the gas pedal it proactively increases the flow thats why temps go down, when idling or going slow the pump is not running at all sometimes. I will try to log with wiTECH and post here so you can see the pump PWM, LT coolant temp and more stuff as well.

Here are the same documents for Giulia, so you can see the differences.I also included Giulia QV cooling so you can see if it is possible to add the additional radiators.

If you have any more of those guides for the Giulia post them up!!!
 
If anyone has the PID for the correct IAT or a link to where to buy the scan tool we'd be happy to code it in to the JB4.

That would be awesome terry.

Heres the scan tool...


Its kind of like vagcom

Hopefully someone with more knowledge can help you find the pid.

Also any chance you can create a map in jb4 that allows for esc to be disabled? This would be a game changer imo. People are spending a hundred bucks on dongles that do this but they force you to lose abs and lose dynamic suspension controls. The programming way of doing it with mes and buying the race mode selector from a qv is not much better losing dynamic suspension and unclear interactions with throttle mode settings. If you could do this it would be great as esc holds back the 2.0l on the track.
 
I've been able to turn off traction control through canbus commands but it unfortunately needs to be done from a different canbus than the one that the JB4 is connected too.. Poop
 
Here is a run from 60km/h to 200km/h. You can see the the intake temp (mainfold - correct one cause this is official FCA diag) never goes above 50 when loaded, also LT coolant temp is low as well. Maybe a pump upgrade is needed for lower temps. This is at 25C ouside temp. You can also see the waste gate is opening, so ECM is limiting boost, not the turbo. In my case I have some issue with airflow rate not being high enough, this was discussed with my tuner as well, but we couldn't figure out why. At the moment my car is on stock ECM map, so if you like I can test more stuff, unfortunately wiTECH is very limited in the way it shows the logs, also no way to export in csv to play with it in excel.
98152
 
What kind of tuning platform or interface is the new tuner using? And is he logging and tuning or just flashing a map for you?

I am trying to learn about all the options out there for tuning the my north American giulia2L Q2 (280hp ecu spec). But id prefer a proper tune where there is at least a few 2-5 revisions to see how the car is responding and recalibrating if necessary. So far i only have access to a canned/shelf tune which is flash and forget. Blind faith i guess.

Anyhow, looks like i will start w getting the mutilecuscan tool multiplexes version to just play with it for a while and see whats happening in Arizona summer coming up. Its 100F already everyday. I also want to see what i will be able to calibrate playing with the multiecuscan tool, not just engine related. Plus i will need a way to reset infotainment service reminder.

Thanks for your input in this thread, i find it very helpful and insightful.
 
It's from focus RS 2.3 ecoboost.
But there is problem with intake temp. It's very high.

I think we need to change water cooler on front.

Wysłane z mojego SM-G973F przy użyciu Tapatalka
Just wondering, how did you get the turbo from the focus mounted? The turbo from the RS has a different mounting flange. Did you used the OEM turbine housing?
 
Just wondering, how did you get the turbo from the focus mounted? The turbo from the RS has a different mounting flange. Did you used the OEM turbine housing?
Turbin and compressor wheels are fitted into giulias housing.

Wysłane z mojego SM-G973F przy użyciu Tapatalka
 
I would have the same question as you. Desired boost at 5500rpm is going to need to be alot higher than that. Id show logs to tuner and ask more questions. Why not just run jb4 on custom map 6 so you can set your own boost targets per rpm? Thats what many are having to do with the new hybrid turbos on the turbo b9 audi s4
Are you aiming for 600HP from the 4 cylinder? 2.57bar (I presume gauge/boost pressure) is 37PSI and already a little more than double what the stock turbo can produce at 5500 RPM. At that pressure I would get very concerned about the reliability of that plastic turbo manifold, the transmission and the differential(s).

In my car with a stock turbo but EC P2 tune the waste gate cuts in at 25PSI boost when I am at 7000' elevation. I can get 25PSI boost in the 2500-4000RPM range.
 
But to make power you need at 5000 at least 1.7, stock turbo will not give you such boost.

Wysłane z mojego SM-G973F przy użyciu Tapatalka
 
But to make power you need at 5000 at least 1.7, stock turbo will not give you such boost.

Wysłane z mojego SM-G973F przy użyciu Tapatalka
Quite a bit of power can be gained by not tapering off power as the redline is approached (a major part of what EC P2 does for top-end power). With my stock turbo, EC V2 intake and Fiammenghi exhaust I see 18PSI boost = 1.24 bar at the redline at 7000' (about 2000m) elevation. I expect that it can do better at lower elevations. However, my point is that 2.57bar boost at 5500RPM is nothing to complain about and it might even be too much without more HW changes. The boost change alone should get you a large increase in power, at least if the fuel pump and injectors can keep up. If you meant 2.57 bar absolute pressure at near sea level, that is not obviously any improvement over stock.
 
101 - 120 of 1,111 Posts