Diesel Engine Fine Tuning - Alfa Romeo Stelvio Forum
 3Likes
  • 1 Post By lost1750GTV
  • 1 Post By Flunx
  • 1 Post By KGB
 
LinkBack Thread Tools
post #1 of 9 (permalink) Old 03-27-2019, 07:21 AM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
Diesel Engine Fine Tuning

Im opening this thread to all Stelvio Diesel owners that want to extract a little more juice of the 2.2 JTD.

Feel free to share doubts or results. And of course the "journey" of all your work on it.

Cheers, Flavio

#DieselIsNotDead
Flunx is offline  
post #2 of 9 (permalink) Old 03-27-2019, 10:26 AM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
Im thinking.. for a start... trade the OEM exhaust system to a Ragazzon.
My doubt is with bigger diameter pipe and without any rear silencer.. will lose backpressure.. and be worse.. with it.
It would be interresting to have a before and after dyno test.

Flavio

https://www.ragazzon.com/eng/ragazzo...l=374&cld=1326



55.0580.00
2nd stainless steel cat replacement pipe group N
Oversized exhaust pipe diameter 70 mm


601004180


50.0771.40
Stainless steel rear silencer for original aesthetic tail pipes
Oversized exhaust pipe diameter 70 mm
Not compatible for cars with Ad-Blue



Flunx is offline  
post #3 of 9 (permalink) Old 03-27-2019, 12:39 PM
Senior Member
 
Join Date: Aug 2017
Location: MAgical
Posts: 1,832
"Diesel Engine Fine Tuning"

isn't this a contradiction in terms? don't you guys just get a bigger bucket to dump more fuel in?

insert smiley winky things here
Flunx likes this.
lost1750GTV is online now  
post #4 of 9 (permalink) Old 03-27-2019, 08:14 PM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
Flunx is offline  
post #5 of 9 (permalink) Old 03-28-2019, 06:00 AM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
Now I will ask to my Alfa Dealer "Motor Village Lisbon" to check some parts to see if there is diference between 180hp and 210hp.
Like: Pistons, Head gasket, Cranks, Crankshaft, Head cilinder, Intercoolers, Turbo, Inlet manifold, injector... etc

eheheheheh not just "increase" debt in injector and "more" air... and be a "octopuss or cuttlefish" and spray some black smoke on the run.
lost1750GTV likes this.
Flunx is offline  
post #6 of 9 (permalink) Old 04-01-2019, 05:07 PM
KGB
Member
 
KGB's Avatar
 
Join Date: Nov 2018
Location: EU
Posts: 60
Garage
You don't need back pressure for turbo car :-)


Also with that system you still have your DPF which kills most of the sound and adds back pressure. So even if you don't have any rear silencer the car will still be quite as you also have a VNT turbo which also kills the sound.


Maybe we should consider removing the DPF with a pipe... better for the engine as well.


About the differences between the 180...210 will look deep into that one. already found some but need to look in the details
Flunx likes this.

Stelvio 2.2 Q4, Alfa 147 QVD 300+hp , Alfa Crosswagon Q4 edizione Nero, Alfa 159 TI QVD, Alfa 159 2.4 QVD, Fiat 500 X rosso
KGB is offline  
post #7 of 9 (permalink) Old 04-17-2019, 07:40 AM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
@KGB ...
Lets continue to talk...

I will share here also the same info.

After some research I found that between the Diesel version 210hp and 180hp.

There is some difference. See Part-numbers

Turbo - 55278618 vs. 55279544
Intercooler - 50533819 vs. 50534301
Injectores - 55260836 (are the same in both cars)
Pistons - dont have final info yet
Crank - 55277649 (are the same in both cars)
Crankshaft - 73503942 (are the same in both cars)
Headgasket - 55279536 (are the same in both cars)
Cilinder head - 73503854 vs. 71779388
Inlet manifold - 55281227 (are the same in both cars)
EGR - 55283264 (are the same in both cars)
Flunx is offline  
post #8 of 9 (permalink) Old 04-17-2019, 12:31 PM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
@KGB .... See the Diesel 210HP (left or upper) diagram vs the Quadrifoglio (right or lower).
Which parts will I need? all?

Thanks
Attached Thumbnails
Click image for larger version

Name:	image (1).png
Views:	21
Size:	279.9 KB
ID:	14555   Click image for larger version

Name:	image.png
Views:	23
Size:	234.2 KB
ID:	14557  
Flunx is offline  
post #9 of 9 (permalink) Old 04-18-2019, 07:44 AM Thread Starter
Senior Member
 
Flunx's Avatar
 
Join Date: Apr 2018
Location: Estoril - Portugal
Posts: 462
Garage
@KGB - the 2 first image are from the Diesel 210 version
The other is from the Quadrifoglio.
Attached Thumbnails
Click image for larger version

Name:	image (2).png
Views:	22
Size:	225.1 KB
ID:	14575   Click image for larger version

Name:	image (3).png
Views:	20
Size:	172.8 KB
ID:	14577   Click image for larger version

Name:	image (4).png
Views:	20
Size:	148.6 KB
ID:	14579  
Flunx is offline  
Reply

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



Similar Threads
Thread Thread Starter Forum Replies Last Post
The All New Alfa Romeo Stelvio MAXPower PRO Engine Control Module is here! MADNESS Autoworks Madnesss Autoworks 8 05-20-2019 05:31 PM
Stelvio 2.2 diesel Q4 Vs Jaguar F-Pace 2.0D AWD rossocompetizione Alfa Romeo Stelvio Versus the Competition 22 04-17-2019 05:07 AM
Would you buy a Stelvio all over again? Gabe Blahut 2017+ Alfa Romeo Stelvio: Likes And Dislikes 56 03-10-2019 10:54 AM
2.1 JTD engine info ar_d Engine and Technical Discussion 0 10-11-2018 01:28 PM
A Third Engine Choice? 48V Electrical System? SoCal Stelvio Engine and Technical Discussion 7 11-12-2017 08:00 PM

Posting Rules  
You may not post new threads
You may not 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 On
Pingbacks are On
Refbacks are On

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