Cool piston tech

dieseldonato

Veteran Member
Joined
Mar 10, 2023
Location
Us
TDI
2001 jetta
2017 is the year I quit working on them. With the exhaust emissions problems we had economy would have been impossible, and useless to measure. But......retirement solved all those issues, easy
It was quite the challenge/ learning curve. Never had many issues with volvo. Scania was a straight up nightmare.
 

BEWtheDEW

Member
Joined
Jul 3, 2023
Location
Montana
TDI
2005 VW Jetta Wagon; BEW; 5 Speed
Good luck getting any actual data from volvo.
Oooh ok I see, the design and concept is a bit different, Volvo uses “waves” to direct fuel utilization toward the center of the piston, as opposed to increasing overall combustion. And yea, without any comparable data, who is to say that their design is going to change anything.
 

dieseldonato

Veteran Member
Joined
Mar 10, 2023
Location
Us
TDI
2001 jetta
At least in industrial applications volvo was always pretty fuel efficient vs many other mfg. No idea how it translated into the truck market.
 

adjat84th

Veteran Member
Joined
Dec 13, 2008
Location
Virginia Beach, VA
TDI
'01 Jetta TDI/'15 Golf TDI
Dyno results are in for the EA288 (CRUA) with the SOA pistons. CR190 and they start the dyno at 2600rpm :unsure:
305ft-lbs and 181hp (barely any change to stock piston dyno) with no change to the tuning which they are claiming to see a 200deg (likely Fahrenheit) drop in EGT which would allow for some easy tuning fuel increases. Based on the dyno chart, I'm not sure this thing is tuned very well as there should be ample low end torque to support starting the dyno pull at 1600-1800rpm
 
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