Help with tuning graph? - Alfa Romeo Forum
You are currently unregistered, register for more features.    
Tuning & Upgrades Discuss performance enhancements for your Alfa Romeo

 
Thread Tools
(Post Link) post #1 of 5 Old 04-04-13 Thread Starter
Status: Avanti!
AO Member
 
Mattsky's Avatar
 
Join Date: Sep 2009
Location: United Kingdom
County: Surrey
Posts: 187
Hmmm Help with tuning graph?

Hey hey. So the previous owner of my 2.4 Ti bella had the DPF replaced with a straight-through pipe, the EGR deleted and ECU remapped through Proalfa, Watford, back in Nov 2011. And very conscientious the chappie was about it too, apparently. I've attached the rolling road graph of the completed remap. I've got nothing to compare it to, so I don't know how its performance compares to anything else. Can anyone enlighten me if this looks good or comparable with other 2.4 210bhp engines (remapped or not)? I'd be grateful.

And do remaps 'fade' at all over time?
Attached Images
File Type: jpg 159 2.4 Ti remap graph.jpg (69.9 KB, 33 views)
Mattsky is offline  
Sponsored Links
Advertisement
 
Status: playing kill by numbers
AO Gold Member
 
Join Date: Feb 2005
Location: Belgium
County: Down in the Park
Posts: 8,786
here's what Squadra says is possible, without DPF-delete

159 2.4 JTDm 20v (210 pk), Alfa 159 Diesel - Squadra Tuning
Cuore_Sportivo_155 is offline  
(Post Link) post #3 of 5 Old 04-04-13 Thread Starter
Status: Avanti!
AO Member
 
Mattsky's Avatar
 
Join Date: Sep 2009
Location: United Kingdom
County: Surrey
Posts: 187
Cheers for that, Cuore. I'm no technician, but before I realised 'vermogen' and not 'koppel' means 'power', I'd have said that some of those figures stray into clutch burnout territory! But now I can see that those 'vermogen' HP (or PK if you're Dutch) figures look reasonable.

My remap is meant to be a balance between power and economy - I think it's gained 30 horses but with the DPF off. Proalfa apparently measured the pre-mod BHP at around 180BHP, I think - well down on the quoted 210BHP, which is alarming. Apparently we should take manufacturers' quoted BHP figures with a pinch of salt - I guess they quote the maximum BHP for ideal conditions.
Mattsky is offline  
Status: playing kill by numbers
AO Gold Member
 
Join Date: Feb 2005
Location: Belgium
County: Down in the Park
Posts: 8,786
No, 30 bhp is more off than it should be... either your MAF is going out, or the dyno had a calibration problem...

or they aren't talking about flywheel bhp?
Cuore_Sportivo_155 is offline  
(Post Link) post #5 of 5 Old 05-04-13 Thread Starter
Status: Avanti!
AO Member
 
Mattsky's Avatar
 
Join Date: Sep 2009
Location: United Kingdom
County: Surrey
Posts: 187
Probably a dyno thing. The car feels good to drive - Im not noticing any lag or flat spots. I could get the MAF and inlet manifold pressure sensor cleaned though while it's at the specialists.
Mattsky is offline  
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Tuning & Upgrades

Tags
graph , tuning

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome